REG - Neometals Ltd - Barrambie Gold Exploration Target
23/09/2024 07:00
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RNS Number : 1395F Neometals Ltd 23 September 2024
This announcement contains inside information
23 September 2024
Neometals Ltd
("Neometals" or "the Company")
Barrambie Gold Exploration Target
Highlights:
· Maiden assessment completed on gold exploration potential at
Barrambie using historical data from previous explorers;
· Focus since Barrambie acquisition in 2003 has been on the
titanium and vanadium deposit with gold potential not previously examined;
· Barrambie Greenstone Belt ("BGB") historically produced 27,000
gold ounces at 27.8g/t;
· Camp-scale gold potential with significant structural corridors
identified;
· Recent Neometals grab and rock chip sample assays range from
5.1g/t to 44g/t Au and are consistent with historical mined grades;
· Exploration Target along the 40km strike of BGB within Neometals
tenure is between 8Mt at an average grade of 1.3g/t Au and 10.5Mt at an
average grade of 2.3g/t Au, for an implied 335,000 ounces to 775,000 ounces
gold; and
· Exploration Target considers a drill dataset across ten
prospects, observed mineralogical characteristics, various geometries,
dimensions and styles of known mineralisation and current understanding of
structural and lithological controls on the location of mineralisation.
Sustainable process technology developer, Neometals Ltd (ASX: NMT & AIM:
NMT) ("Neometals" or "the Company"), is pleased to provide an update on the
potential gold endowment at the Company's 100% owned Barrambie Project
("Barrambie"), in Western Australia.
Barrambie is not only one of the world's highest-grade titanium deposits(1)
but is also highly prospective for gold mineralisation, with minimal gold
exploration occurring since the 1970s. Neometals' ~706 km(2) of tenure
encompasses approximately 40km of strike of the BGB, the majority of which
remains under-explored for gold (see Figure 1).
______________________________
(( 1 )) See ASX announcement 15/05/2023 titled "Barrambie Titanium Project PFS
and Ore Reserve Update"
Figure 1 - Location of the Barrambie Project with respect to major Greenstone
Belts of the Yilgarn.
A new geological model has been developed for the broader Yilgarn greenstone
belt that contains the BGB ("GSB"), and reflects camp-scale gold
prospectivity, that is, a multi-deposit portfolio of mineralisation of various
dimensions and styles, such as those commonly found in the Yilgarn, including
at the proximal of Gum Creek GSB, Meekatharra-Mount Magnet GSB and Sandstone
GSB (see Figure 1 & Figure 2).
The model is framed around well-defined structural corridors and stratigraphic
controls and is informed by substantial historical datasets, new structural
interpretation of reprocessed geophysics, field observations and recent
sampling conducted by Neometals (April 2024 see Appendix 3), which returned
grades consistent with historic mined grades, including:
BGR03 - 5.1 g/t Au BGR15 - 5.9 g/t Au
BGR05 - 44.0 g/t Au BGR43 - 5.5 g/t Au
BGR06 -17.3 g/t Au;
The historic dataset of over 1,500 drillholes (see Appendix 1 & 2)
includes multiple, high-grade intersections including(2):
Hole B194 - 4m at 6.1 g/t Au from 25 Hole I084 - 10m at 9.1 g/t Au from 10m
Hole BR064 - 6m at 11.8 g/t Au from 18m Hole SG131 - 11m at 15.9 g/t Au from 69m
Hole I043 - 8m at 21.8 g/t Au from 8m
An Exploration Target has been calculated along the 40km strike of BGB within
Neometals' tenure from between 8Mt, at an average grade of 1.3g/t Au, and
10.5Mt at an average grade of 2.3g/t Au, for an implied 335,000 ounces to
775,000 ounces gold.
Neometals Managing Director, Chris Reed, says:
"The excellent work of our technical team in compiling, validating and
analysing historic exploration data has proven we have underestimated the gold
potential of perhaps the only remaining greenstone terrain in the Yilgarn with
no exploration effort in the last 20 years. It presents a rare opportunity to
uncover a substantial gold camp, and we will explore the most effective
strategy and corporate structure to capitalise on the gold potential. We will
continue with our divestment strategy in relation to the titanium/vanadium
resources."
Figure 2 - Barrambie Project in relation to proximal camp-scale gold projects
and greenstone belts.
______________________________
(2) Grades are length-weighted averages. No top cut applied. See Appendix 1
& 2 for details.
Cautionary Statement
The Competent Person cautions that certain Exploration Results(3) contained
within this release have been extracted from historic DMIRS WAMEX(4) annual
reports by the previous historical operators. Further exploration and
evaluation may affect confidence in these results under the JORC 2012
standards. Nothing has come to the attention of Neometals or its Competent
Person that cause them to question the accuracy or reliability of the
previously reported drill results and work.
The source reports (DMIRS WAMEX) are identified in the JORC Table 1 (Appendix
4) for all historical exploration reports used to quantify the potential gold
endowment at Barrambie. These can be freely accessed by the public at
https://geoview.dmp.wa.gov.au/GeoView (https://geoview.dmp.wa.gov.au/GeoView)
using the unique A-number for each report.
The Company has undertaken desktop evaluation of the work completed. However,
it has not comprehensively validated the results and therefore is not to be
regarded as reporting, adopting, or endorsing these results.
The April 2024 grab/rock chips results (Appendix 3) included in this report
were completed as a first pass validation of the historical grades compiled to
date.
Background
The original Barrambie mining lease was granted in 1990 and Neometals has
owned 100% of Barrambie since 2003, through its 100% owned subsidiary
Australian Titanium Pty Ltd ("Australian Titanium"). Barrambie is located 750
kilometres north-east of Perth (see Figure 1).
The Company's historic and recent focus on vanadiferous titanomagnetite
("VTM") exploration has resulted in a lack of systematic, modern gold
exploration along the Barrambie Greenstone Belt.
In January 2024, Neometals initiated a detailed search of the DMIRS WAMEX
database that identified and acquired 111 historic reports relating to gold
exploration. Data from the reports were compiled with existing digital data
and a new gold exploration database developed. The database includes surface
geochemical sampling and drill hole data. Surface maps and historical workings
were also geo-registered and incorporated with the digital data to produce
geological and numeric models.
The drillhole database compiled from publicly available data comprises AC,
RAB, RC5 and some diamond drill holes but no diamond core or drill samples
remain. Over 2,000 drill holes were compiled, 1,547 of which have gold assays
and only 10% of these have been drilled to depths greater than 60m (see Figure
5 and Appendices 1 & 2). The historic drilling is spread across 10
prospects, however, most drilling is clustered around the two main gold
centres, Ironclad and Barrambie Ranges, leaving much of Barrambie
under-drilled and significant strike lengths totally untested by drilling.
______________________________
(3) As defined by the JORC Code, Clause 18.
(4) Department of Energy, Mines, Industry Regulation and Safety, Western
Australia. WAMEX is the Western Australian Mineral
Exploration Report database.
(5) Abbreviations refer to aircore, rotary air blast and reverse circulation
drill techniques.
Substantial historic surface geochemistry was also acquired. However, many
gaps in the data leave the majority of the prospective greenstones
ineffectively covered.
Existing geophysics data was reprocessed to highlight the potential structures
associated with the known historical gold occurrences. This reprocessed data
was then reinterpreted with a series of conjugate structural corridors being
identified as being significant.
Comparison of the structural interpretation with the surface geochemical data
and drilling data sets has revealed many data gaps and hence areas requiring
follow-up exploration.
Exploration Target
The Exploration Target along the 40km strike of the BGB within Neometals
tenure is between 8Mt at an average grade of 1.3g/t Au and 10.5Mt, at an
average grade of 2.3g/t Au, for an implied 335k ounces to 775k ounces gold.
The Competent Person cautions that the potential quantity and grade of the
Exploration Target is conceptual in nature, that there has been insufficient
exploration to estimate a Mineral Resource and that it is uncertain if further
exploration will result in the estimation of a Mineral Resource.
The Competent Person has relied on, and is basing this Exploration Target on,
a combination of data listed below and detailed in this report and appendices:
· geological setting of Barrambie within the under-explored BGB;
· historic mining data which demonstrates the existence of high
tenor gold mineralisation along the length of the greenstone belt;
· historic drill data, albeit restricted in extent and at least
partially ineffective, demonstrates continuity of Au mineralisation in
multiple (10) locations;
· historic surface geochemical data, albeit incomplete coverage,
demonstrates Au anomalism along the length of the greenstone belt;
· observed and recorded geological descriptions demonstrates Au
mineralisation of various styles (shear/vein and stockwork) and lithological
hosts (mafic intrusive and sediment);
· recent grab and rock chip sampling (April 2024) which validates
the tenor of gold mineralisation at the Barrambie Ranges and Sugarstone
centres and demonstrate the potential of new, un-drilled, structures;
· reprocessed geophysics and new structural interpretation showing
multiple structural corridors and potential structural settings; and,
· camp-scale geological/exploration concept.
The camp-scale concept describes exploration potential similar to that found
in other greenstones belts of the Yilgarn, whereby multiple deposits of
various magnitudes (in terms of contained Au ounces) contribute to a total
endowment for Barrambie, simplified in Figure 3. Examples of camp-scale gold
endowment within the Yilgarn include producing and advanced projects at
historic gold mining centres at Gum Creek GSB, Meekatharra-Mount Magnet GSB
and Sandstone GSB (see Figure 2).
Figure 3 - Simplified representation of deposit endowment that may be expected
in a typical camp-scale project.
The Exploration Target is based around a similar number of currently known
prospects and their dimensions within top 200m below surface, noting the
future targets are likely to include additional new prospects and depth
extensions.
Neometals used the information outlined in this announcement to guide
interpretations of drilled prospects and generate volumes with the assistance
of implicit modelling software. For these deposits, assumptions of potential
extensions to mineralisation were applied to derive the Exploration Target
tonnage range. The quantity and quality of the drill assay dataset contained
with the generated solids are insufficient to provide reliable grade estimates
of future mineralisation. Hence assumptions of future grade ranges have been
made.
Table 1: Current prospects: current modelling & Exploration Target
Prospect Current numeric modelling Exploration Target Commentary
(to 100m below surface) (to 200m below surface)
Lower Range Upper Range Lower Range Upper Range
kt g/t kt g/t kt g/t kt g/t
Barrambie Ranges 610 1.4 1,200 2.9 1,850 1.3 2,250 2.3 Historic mining grade 28.96g/t; >1km contact related shear-zone trend;
associated with intersection of NE and NW structural corridors; poorly drilled
tested along strike & depth; intercept 4m @6.06g/t (hole B194) to be
followed-up (refer Appendix 1 and 2)
Ironclad High Range 500 0.7 1,010 1.4 1,600 1.3 2,000 2.3 Drilled along 300m strike but under-explored below 20m. Contact related
shear-zone trend associated with intersection of NE and NW structural
corridors; Indications of stacked lodes 50m wide; intercepts include 8m @
5.11g/t from 69m (hole ICRC006) (refer Appendix 1 and 2)
Mystery & Luptons East 480 0.8 970 1.6 1,600 1.3 1,800 2.3 Broad 120m of stacked mineralisation, untested along strike and down-dip;
contact related shear-zone trend associated with intersection of NE and NW
structural corridors; intercepts include 11m @ 15.9g/t from 69m (hole SG131,
refer Appendix 1 and 2)
Mystery - Sugarstone No Model No Model 300 1.3 500 2.3 750m zone under-explored; contact related shear-zone trend associated with
intersection of NE and NW structural corridors; 6m @ 11.8g/t from 18m
(holeBR064) to be followed-up (refer Appendix 1 and 2)
Ironclad-Mystery No Model No Model 300 1.3 500 2.3 500m strike potential un-tested; prominent mag-high trend; contact related
shear-zone trend associated with intersection of NE and NW structural
corridors
Silver Lining 410 0.5 820 1 1,300 1.3 1,550 2.3 Potential northern extension of Barrambie Ranges trend; mineralisation not
closed off along strike and down dip
Woodies 180 0.6 370 1.2 550 1.3 750 2.3 Soil Au anomaly in sediments associated with regional NNW structural trend;
1200m strike; intercept 17.0m @ 5.44g/t to be followed-up (WRB065, refer
Appendix 1 and 2)
Lost Chance 72 0.9 140 1.8 125 1.3 300 2.3 Likely southern extension of Ironclad; northwest trend; sediment-gabbro
contact; open all directions
Inheritance 54 0.7 110 1.4 125 1.3 300 2.3 Potential northern extension of Errolls; mafic-granite contact; intersection
of N & NW structural corridors; open in all directions
Kismet 29 0.8 59 1.6 100 1.3 250 2.3 Shear within schistose granite and BIF; similar gabbro-granite contact
position south of Errolls; associated with intersection of N, NE and NW
structural corridors; located to SW along Mystery-Ironclad-Sugarstone NE
corridor; open all directions
Sugarstone 3 0.5 6 1 75 1.3 150 2.3 Historic mining grade reportedly 22.9g/t; north-south quartz reef; steep west
dip; associated with intersection of N, NE and NW structural corridors;
gabbro-sediment contact
Lilyveil 2 0.5 5 0.9 75 1.3 150 2.3 Likely extension of Barrambie Ranges; proximal N-NW & northwest corridor;
sediment-gabbro contact; open all directions
Total 2,340 0.9 4,690 1.8 8,000 1.3 10,500 2.3
Figure 4 - Barrambie Project tenure, simplified geology and historic
production centers.
Geological Setting
The Project is situated within the Archaean BGB, which is a narrow,
north-northwest trending greenstone belt in the northern Yilgarn Craton (see
Figure 1, Figure 2 & Figure 4). The linear BGB is about 60 km long (40 km
of which is contained in the Barrambie tenements) and attains a maximum width
of about 4 km. It is flanked by banded gneiss and granitoids. The large
layered, mafic intrusive Barrambie Igneous Complex (which hosts the Ti-V
deposit) has intruded into and is conformable with the general trend of the
enclosing Greenstone Belt. From aeromagnetic data and regional geological
mapping, it appears that this layered sill complex extends over a distance of
at least 25 km and varies in width from 500m to 1,700m.
The sill is comprised of anorthositic magnetite-bearing gabbros that intrude a
sequence of metasediments, banded iron formation, metabasalts and
metamorphosed felsic volcanics of the BGB. The metasediment unit forms the
hanging-wall to the layered sill complex.
Exposure is poor due to deep weathering, masking by laterite, widespread cover
of transported regolith (wind-blown and water-borne sandy and silty clay),
laterite scree and colluvium. Where remnant laterite profiles occur on low
hills, there is ferricrete capping over a strongly weathered material that
extends down to depths of 70m. This factor had led to ineffective historical
exploration.
Gold occurrences are generally associated with cross-cutting faults
particularly proximal to gabbro contacts with the mafic metasediments to the
east, but also with granites on the western side of the GSB (see Figure
4).
Historic Gold Mining
Gold was discovered at Barrambie in 1905 during the construction of the Rabbit
Proof Fence. Subsequent prospecting opened four main gold centres in the
Barrambie area (see Figure 4):
· Barrambie Centre (including the Barrambie Ranges historical
underground gold mines)
· Scheelite Centre(6) (including the Dohertys gold mine)
· Sugarstone Centre (including historic gold mines Ironclad,
Sugarstone and Mystery)
· Errolls Centre(6) (including the Legacy gold mine)
Underground mining occurred predominantly in the first half of the 20(th)
century with minor production extending through to 1985. The total production
historically reported to the Mines Department from the four mining centres
totalled 27,294 ounces of gold from 34,233 long tons of treated ore, at an
average grade of 24.8g/t Au (Table 2).
______________________________
(6) The Scheelite Centre & Errolls mining centre is not on Neometals
tenements.
Mines Department reports note that gold mineralisation was structurally
controlled with various styles present:
· In north-south shear-zones at Barrambie Ranges, Sugarstone and
Errolls;
· Stockwork of quartz veins at Sugarstone and Barrambie centers.
Mineralisation is associated with shears striking 120° and dipping steeply to
the east, as well as shears striking 050-060° with flat to moderately
northwest or southeast dips;
· Infilled quartz vein stockworks within shear zones of the
vanadium-titanium Barrambie Sill (at Sugarstone and Barrambie centers); and,
· Infilled quartz-filled ferruginous saddle reef (or drag-fold)
structures (Scheelite / Dohertys).
Table 2: Historic Gold Production by production centre, Barrambie Greenstone
Belt
Location Years Tonnes Ore Au (g/t) Gold (oz)
Errolls 1906 - 1919 10,141 19.01 6,197
Barrambie 1907 - 1966 16,530 28.96 15,390
Sugarstone 1908 - 1913 5,270 22.9 3,880
Scheelite/Dohertys 1955 - 1985 2,292 24.79 1,827
Total 34,233 27,294
Historic Drilling data
Data for over 57,000 metres of drilling (not necessarily focused on gold
targets) from over 2,000 drill holes has been compiled. Drilling data compiled
from historic reports is summarised in Table 3 & Table 4 and Figure 5 and
Appendix 1 & 2.
Table 3: Compiled drill data
Hole Type # Holes Total Metres
DD 9 971.32
RAB 1,622 37,984.50
RC 419 17,188.96
UK 21 1,047.00
Total 2,071 57,192
Data was acquired from historic WAMEX reports in digital and non-digital
formats. RC and diamond drilling is restricted to more advanced gold
prospects, such as Barrambie Ranges, Sugarstone-Mystery, Kismet, and Errolls.
Its significant to note that the majority of this drilling is less than 60m
deep. It is also significant that the Project lacks the broad cover of RAB/AC
drilling when compared to other greenstone belts.
The Competent Person cautions that the historical drill intercepts may not
have been reported in accordance with the JORC Code or its precedents and
considers these to be indicative of, but not absolute measures of, the
presence and tenor of mineralisation.
Table 4: Summary drill data compiled from historic reports
Company Years Prospects RAB/RC RC DD
Samson Exploration NL 1987 to 1995 Barrambie Ranges, Dohertys, Errolls, General Kuropatkin, Mystery, Sugarstone, 751 holes Combination of 1m and 2m and 5m composites Combination of aqua regia and FA 340 holes 1m Samples by spearing 6 holes 1/4 core for Fire assay, half for met testing, 1/4 retained
White Dingo
AR & FA checks
Regional Resources NL / Miralga Mining ML 1986 to 1988 Errolls 11 holes 1m samples, riffle split to 2kg
Au50 Fire Assay
Dominion Mining Limited 1991-93 Errolls North, Sugarstone 261 holes Bottom of hole samples
Au & multielement
Black Swan Gold Mines Ltd 1992 Ironclad, Errolls, Dohertys 147 holes 1m 1kg samples from mechanic splitter on rig 10 holes No sampling details
Tindals Gold Mines NL 1995 Barrambie, Floodway East, Ironclad 43 holes 1m samples, 4m composites
Minlabs AR AAS Au V Cu
Newcrest Mining Limited 1996-7 Errolls 405 holes 4m comps to Genalysis
Au by B/ETA, As and Cu by B/AAS
Acclaim Exploration NL 1996-97 Barrambie Mine East, Errolls, Ironclad, Silver Lining, Gossan Valley, 211 holes 1m samples, 4m comp by scoop 35 holes 1m samples
Homestead, Woodies, Whitewell
Au and multielement
Au, Pt, Pd
Selected samples for multi-element & screen fire
Golden West Resources 2006, 2008-9 Dohertys 9 holes 1m samples 6 holes 1m intervals
Au fire assay
Selected samples repeated using fire assay
Figure 5 - Drill hole location plan for compiled drilling dataset.
Historic Surface Geochemical Data
All surface geochemical data were compiled and plotted from digital and
non-digital sources (see Figure 6 and Table 5). Data consists of AUGER, BLEG,
GRAB, LAG, ROCK, SOIL and STREAM sampling.
While surface geochemical coverage appears expansive, the Competent Person
considers the main structures, particularly in the Barrambie Ranges and
Ironclad/Sugarstone centres, to be under-surveyed. Similarly, field
observations identify paleochannels west and east of the Barrambie VTM trend
and historic soil sampling is considered ineffectual. The existing geochemical
coverage is reduced by ~20% when historic sampling over paleochannels is
removed.
Historical soils programs were restricted to historical tenement boundaries
and not optimally located for potential gold structures.
Table 5: Compiled surface geochemical data
Sample Type Number of Samples
AUGER 428
ROCK 35
STREAM 258
GRAB 403
SOIL 7,064
BLEG 15
LAG 75
Total 8,278
Figure 6 - Compiled surface geochemical data.
Examples of Current Gold Prospects
The Mystery and Lupton's East prospects (at the Sugarstone mining center) have
a strike length of 180m x 120m wide and is unconstrained along strike and down
dip, plus with potential for parallel loads. Mystery was mined from 1908 to
1912 to a depth of 67m. It had five levels and Mines Department records
indicate that it produced 4,428t for 3,413oz at an average grade of 23.6g/t
au. Best drilling result is SG131 - 11m @ 15.9g/t Au from 69m (WAMEX report:
A22584).
The Ironclad prospect (Sugarstone mining center) has a strike length of 600m x
50m wide and is interpreted as a series of stacked pods of mineralisation
plunging to the northwest. Ironclad was a shallow underground mine completed
in 1910 which Mines Department records indicate produced 22t for 10oz, at an
average grade of 14.1g/t Au.
Best drilling result I043 - 8m @ 21.78g/t Au from 8m (WAMEX report: A37144)
although it remains under-drilled below depths of 20m. Deeper intercepts
requiring follow-up include (WAMEX report: A48813):
· ICRC006 8m @ 5.11g/t Au from 88m;
· ICRC004 9m @ 2.56g/t Au from 76m, and;
· ICRC002 6m @ 2.55g/t Au from 74m.
Sugarstone was mined in 1909 from two separate lodes: one with a 30m long open
pit to the west side and a second underground mine that went down 30 metres to
the east of the pit.
Lost Chance prospect (Sugarstone mining center) has a strike length of 153m
and is open along strike and down dip. Best drilling result BR064 - 6m @
11.8g/t Au from 18m (WAMEX report: A16272).
Barrambie Ranges prospect (at the Barrambie mining center) is a shear hosted
quartz vein in felsic volcanics east of the Barrambie Mining Lease M57/173-I.
It remains poorly drilled along strike with best intercept of 4m at 6.06g/t
(hole B194) yet to be followed-up.
The extent of historical workings suggest the northern area is less
extensively mined underground. Mines Department records indicate production of
15,101oz at an average grade of 29.2g/t Au to a depth 100m from surface over 3
levels. Rock chips taken in April 2024 (see section below) support the grade
and tenure of mineralisation reported to have been mined at Barrambie Ranges:
· BGR05 - 44.0 g/t Au grab sample from the mullock dump of the
Golden Hill shaft. This is indicative of the high grades mined underground;
· BGR06 - 17.3 g/t Au an important sample as it is taken from in
situ outcropping sheared basalt with no obvious quartz veining as would be
expected for these grades. This sample shows that mineralisation extends
beyond the quartz veining into the broader, host-shear zone.
Geophysics Reprocessing and Interpretation, Neometals 2024
In April 2024 Neometals had the existing geophysical datasets reprocessed.
These were of good quality but had originally been processed to highlight the
Barrambie VTM style of mineralisation. They were reprocessed to highlight the
potential structures associated with the existing historical gold occurrences.
Once reprocessed, a consultant structural geologist completed a
reinterpretation of the dataset. Note this interpretation is a first-pass
undertaking and requires follow-up investigation and comparison with other
datasets to increase the reliability of the location of interpreted features.
While gold mineralisation favours locally north-south oriented
contacts/structures, the consultant identified a series of conjugate
structural corridors with north, northwest and northeast trends (Figure 7).
These features may represent long-lived structures and potential zones of
reactivation and fluid flow during orogenesis, and thus are of interest for
continued exploration, particularly in locations where the various corridors
intersect.
Comparison of the structural interpretation with the surface geochemical data
and inground drilling data sets shows how under explored the tenement package
remains in terms of gold exploration.
Figure 7 - Interpretation of structural corridors based on re-processed
geophysical datasets.
Surface Sampling, Neometals 2024
In April 2024, grab and rock chip sampling was completed over several
prospects, historical workings and structural targets to verify historic data
and test under-explored trends (Figure 8). In total, 43 samples were collected
with the descriptions and assay results reported in Appendix 3.
Significant assays include:
· BGR01 - 2.4 g/t Au;
· BGR02 - 3.67 g/t Au;
· BGR03 - 5.1 g/t Au;
· BGR05 - 44.0 g/t Au;
· BGR06 - 17.3 g/t Au;
· BGR15 - 5.9 g/t Au, and;
· BGR43 - 5.5 g/t Au.
These rock chips successfully validate the tenor of gold mineralisation at the
Barrambie Ranges and Sugarstone centres. BGR06 which returned 17.3 g/t Au from
in situ un-veined, basalt-hosted shear, is of importance as it indicates the
exploration potential of the broader shear zone.
Rock chips BGR01 to BGR03 also show the potential of new, parallel, north
westerly structures south of the Barrambie Ranges and Sugarstone centres where
outcropping quartz veins and a shallow working occur which have never been
followed-up with drilling or appropriate surface geochemical sampling.
Figure 8 - Surface sample locations with significant assay grades, Neometals
2024.
Recommendations
The potential quantity and grade of the Exploration Target is conceptual in
nature and will require a systematic exploration effort over number of years
to verify and convert to a Mineral Resource. Initial exploration in the next
term of the licence will focus on verification and extension of the historic
data, including:
· twin-hole drilling to verify the location and tenor of gold
mineralisation identified in historic data;
· extension of the surface geochemistry sampling to ensure key
structural and lithological positions have appropriate coverage;
· analysis for gold and pathfinder elements associated with large
scale, orogenic gold mineralisation; and
· follow-up drill testing of priority targets.
Authorised on behalf of Neometals by Christopher Reed, Managing Director.
The Competent Person cautions that the potential quantity and grade of the
Exploration Target is conceptual in nature, that there has been insufficient
exploration to estimate a Mineral Resource, and that it is uncertain if
further exploration will result in the estimation of a Mineral Resource.
The Competent Person further cautions that exploration data relied on for this
Exploration Target are historic and have not or may not have been previously
reported under the JORC Code or any of its precedents and considers that these
are indicative and not absolute measures of the presence of gold
mineralisation.
- ENDS -
For more information, please contact:
Neometals Ltd
Chris Reed, Managing Director & Chief Executive Officer +61 8 9322 1182
Jeremy McManus, General Manager - IP & IR +61 8 9322 1182
Cavendish Capital Markets Ltd - NOMAD & Broker
Neil McDonald +44 (0)131 220 9771
Peter Lynch +44 (0)131 220 9772
Adam Rae +44 (0)131 220 9778
About Neometals
Neometals facilitates sustainable critical material supply chains and reduces
the environmental burden of traditional mining in the global transition to a
circular economy.
The Company is commercialising a portfolio of sustainable processing solutions
that recycle and recover critical materials from high-value waste streams.
· Neometals' core focus is its patented, Lithium-ion Battery
("LiB") Recycling technology (50% NMT), being commercialised in a 50:50
incorporated JV (Primobius GmbH) with 150-year-old German plant builder, SMS
group GmbH. Primobius is supplying Mercedes-Benz a 2,500tpa recycling plant
and operates its own LiB Disposal Service in Germany. Primobius' first
21,000tpa commercial plant will be offered to Stelco under an existing
technology licence for North America.
Neometals is developing two advanced battery materials technologies for
commercialisation under low-risk, low-capex technology licensing business
models:
· Lithium Chemicals (70% NMT) - Patented ELi™ electrolysis
process, co-owned 30% by Mineral Resources Ltd, to produce battery quality
lithium hydroxide from brine and/or hard-rock feedstocks at lowest quartile
operating costs. Pilot scale test work and Engineering Cost Study update
planned for completion in DecQ 2024; and
· Vanadium Recovery (100% NMT) - Patent pending hydrometallurgical
process to produce high-purity vanadium pentoxide from steelmaking by-product
("Slag") at lowest-quartile operating cost and carbon footprint.
For further information, visit: www.neometals.com.au
(https://www.neometals.com.au/) .
Appendix 1
Collar Details of Drill Holes with Significant Gold Intercepts
Intercepts based on a minimum intercept of 10 gram*meters, 0.6g/t Au lower cut
off and a maximum internal dilution of 1m.
Prospect WAMEX Hole Type Hole ID Easting Northing RL Dip Azimuth (Deg) Depth
Report #
MGA94 Zone 50
MGA94 Zone 50
(Deg)
(m)
BARRAMBIE A44301 RAB BRB186 703807 6974103 499 -60 90 63
BARRAMBIE SHEAR A23650 RC B194 710089 6964890 491 -60 259 30
B207 710124 6964634 494 -60 259 21
COVE A16272 RAB BR001 709730 6963271 535 -60 0 74
INHERITANCE A22658 RC NE1 701475 6977706 489 -60 84 38
IRONCLAD A16272 RAB BR048 704735 6971532 530 -60 0 52
BR053 705276 6971034 530 -60 0 40
BR054 705254 6971022 530 -60 0 40
BR064 705457 6970562 514 -60 0 49
BR099 705300 6970991 530 -60 0 50
A23650 RC SG164 705288 6971046 511 -60 125 51
SG165 705267 6971059 511 -60 125 51
SG166 705246 6971074 511 -60 125 51
SG167 705225 6971088 510 -60 125 51
SG168 705204 6971102 509 -60 125 51
A26799 UK SG179 705219 6971118 509 -60 125 50
SG180 705194 6971130 508 -60 125 50
SG183 705242 6971090 510 -60 125 50
Prospect WAMEX Hole Type Hole ID Easting Northing RL Dip Azimuth (Deg) Depth
Report #
(Deg)
(m)
MGA94 Zone 50 MGA94 Zone 50
BARRAMBIE A44301 RAB BRB186 703807 6974103 499 -60 90 63
BARRAMBIE SHEAR A23650 RC B194 710089 6964890 491 -60 259 30
B207 710124 6964634 494 -60 259 21
COVE A16272 RAB BR001 709730 6963271 535 -60 0 74
INHERITANCE A22658 RC NE1 701475 6977706 489 -60 84 38
IRONCLAD A16272 RAB BR048 704735 6971532 530 -60 0 52
BR053 705276 6971034 530 -60 0 40
BR054 705254 6971022 530 -60 0 40
BR064 705457 6970562 514 -60 0 49
BR099 705300 6970991 530 -60 0 50
A23650 RC SG164 705288 6971046 511 -60 125 51
SG165 705267 6971059 511 -60 125 51
SG166 705246 6971074 511 -60 125 51
SG167 705225 6971088 510 -60 125 51
SG168 705204 6971102 509 -60 125 51
A26799 UK SG179 705219 6971118 509 -60 125 50
SG180 705194 6971130 508 -60 125 50
SG183 705242 6971090 510 -60 125 50
SG184 705220 6971104 509 -60 125 50
SG185 705198 6971117 509 -60 125 50
SG187 705230 6971101 510 -90 0 50
SG188 705255 6971067 511 -90 0 50
SG190 705225 6971087 510 -90 0 47
SG191 705313 6971016 513 -60 125 50
SG192 705292 6971030 512 -60 125 50
SG194 705253 6971056 511 -60 125 50
A37144 RC I013 705192 6971135 508 -60 60 20
I018 705178 6971138 508 -60 60 20
I039 705244 6971083 510 -60 60 20
I043 705249 6971074 511 -60 60 20
I047 705254 6971065 511 -60 60 20
IRONCLAD A37144 RC I069 705199 6971133 508 -60 60 20
I070 705189 6971128 508 -60 60 20
I081 705259 6971079 511 -60 240 20
I084 705339 6971010 513 -60 158 20
I093 705242 6971083 510 -90 0 20
I094 705245 6971083 510 -90 0 20
I098 705242 6971077 510 -90 0 20
I099 705245 6971078 510 -90 0 20
I100 705247 6971080 511 -90 0 20
I101 705250 6971081 511 -90 0 20
I102 705253 6971083 511 -90 0 20
I104 705246 6971073 511 -90 0 20
I105 705251 6971076 511 -90 0 20
I106 705248 6971075 511 -90 0 20
I107 705254 6971077 511 -90 0 20
I108 705256 6971079 511 -90 0 20
I111 705252 6971071 511 -90 0 20
I115 705257 6971062 511 -90 0 20
I118 705260 6971063 511 -90 0 20
I122 705256 6971067 511 -90 0 20
I125 705255 6971072 511 -90 0 20
A48813 RC ICRC002 705123 6971166 507 -60 60 104
ICRC004 705154 6971128 507 -60 60 104
ICRC006 705167 6971099 508 -60 60 104
ICRC007 705185 6971063 509 -60 60 104
ICRC008 705160 6971049 508 -60 60 110
KISMET A52148 AC SSTA33 703162 6969282 510 -60 0 42
SSTA35 703162 6969262 510 -60 0 42
RAB SSTR38 703151 6969297 509 -60 0 35
LILYVEIL A16272 RAB BR037 710409 6962218 530 -60 0 26
MYSTERY A22584 RC SG131 704724 6971496 505 -60 75 93
SILVER LINING A49171 RAB BERB085 709663 6965452 539 -60 90 71
A52165 RAB SLRB029 709751 6965502 534 -60 88 64
SLRB034 709733 6965402 535 -60 88 65
RC SLRC002 709615 6965450 551 -60 88 66
WOODIES A52165 RAB WRB016 713196 6961152 554 -60 270 86
A52165 RAB WRB065 713666 6960352 563 -60 270 98
RC WRC011 713731 6960252 562 -60 270 114
Appendix 2
Historical Drill Hole Significant Intercepts
Intercepts based on a minimum intercept of 10 gram*meters, 0.6g/t Au lower cut
off and a maximum internal dilution of 1m.
Prospect Lease Hole ID Easting Northing Depth From Depth To Interval Au Grade Width
(m)
(m)
(m)
(ppm)
MGA94 Zone 50 MGA94 Zone 50
MYSTERY E 57/769-I SG131 704724 6971496 69 80 11 15.94 175.37
IRONCLAD I043 705249 6971074 8 16 8 21.78 174.24
WOODIES WRB065 713666 6960352 41 58 17 5.44 92.42
IRONCLAD I084 705339 6971010 10 20 10 9.15 91.46
SG190 705225 6971087 23 35 12 6.89 82.66
I107 705254 6971077 2 7 5 15.96 79.8
I122 705256 6971067 9 14 5 14.5 72.5
SILVER LINING BR064 709916 6965352 18 24 6 11.77 70.62
IRONCLAD SG168 705204 6971102 35 43 8 8.54 68.33
SILVER LINING BR053 709916 6965352 18 26 8 6.51 52.06
KISMET SSTA33 705335 6971002 33 41 8 6.26 50.06
IRONCLAD I101 705250 6971081 16 20 4 12.5 50
I108 705256 6971079 12 17 5 9.94 49.7
SG183 705242 6971090 26 33 7 6.99 48.94
ICRC006 705167 6971099 88 96 8 5.11 40.87
SILVER LINING BR099 709916 6965352 28 32 4 10.13 40.52
INHERITANCE E 57/770-I NE1 701473 6977699 28 31 3 12.5 37.49
IRONCLAD E 57/769-I SG168 705204 6971102 20 30 10 3.34 33.38
BARRAMBIE E 57/770-I BRB186 703807 6974103 32 40 8 4.11 32.84
IRONCLAD E 57/769-I I107 705254 6971077 9 12 3 10.63 31.9
I099 705245 6971078 11 14 3 10.35 31.04
I094 705245 6971083 7 13 6 5.16 30.94
I047 705254 6971065 5 8 3 10.29 30.86
I013 705192 6971135 11 17 6 5.1 30.57
I118 705260 6971063 0 3 3 9.89 29.68
SILVER LINING SLRB034 705335 6971002 32 44 12 2.47 29.6
IRONCLAD I115 705257 6971062 12 16 4 7.16 28.64
SILVER LINING SLRC002 705335 6971002 50 52 2 14 28
IRONCLAD I118 705260 6971063 11 14 3 9.16 27.48
SG185 705199 6971117 34 37 3 8.88 26.64
I070 705189 6971128 15 16 1 26 26
I100 705247 6971080 12 19 7 3.57 24.98
SG191 705314 6971016 17 20 3 8.29 24.88
SILVER LINING E 57/769-I BERB085 709663 6965452 22 32 10 2.44 24.38
BARRAMBIE SHEAR B194 710089 6964890 25 29 4 6.07 24.27
IRONCLAD I102 705253 6971083 15 20 5 4.66 23.32
ICRC004 705154 6971128 76 85 9 2.56 23.02
I106 705249 6971075 4 12 8 2.85 22.81
SILVER LINING SLRB029 705335 6971002 52 60 8 2.75 22
BARRAMBIE SHEAR B207 710124 6964634 12 15 3 6.91 20.72
IRONCLAD I081 705258.9 6971079 6 15 9 2.28 20.52
I069 705199 6971133 14 19 5 4.08 20.4
SG192 705292 6971030 28 32 4 4.98 19.9
SG164 705288 6971046 18 21 3 6.58 19.74
I093 705242 6971083 10 16 6 3.09 18.52
SG167 705225 6971088 24 28 4 4.62 18.46
I105 705251 6971076 17 18 1 18.25 18.25
SG165 705267 6971059 2 10 8 2.28 18.23
SILVER LINING BR001 709916 6965352 40 44 4 4.53 18.12
BR048 709916 6965352 32 46 14 1.29 18.06
IRONCLAD I098 705242 6971077 11 17 6 2.87 17.2
SG190 705225 6971087 41 44 3 5.49 16.48
SG183 705242 6971090 17 24 7 2.32 16.26
ICRC002 705123 6971166 74 80 6 2.55 15.28
SG192 705292 6971030 34 35 1 15.2 15.2
SG184 705220 6971104 48 50 2 7.58 15.16
I111 705252 6971071 11 16 5 2.95 14.74
SG194 705253 6971056 23 28 5 2.71 13.57
I125 705255 6971072 10 16 6 2.22 13.32
WOODIES WRC011 713731 6960252 88 90 2 6.5 13
IRONCLAD SG179 705219 6971118 6 12 6 2.16 12.97
SILVER LINING BR037 709916 6965352 14 20 6 2.11 12.64
IRONCLAD I039 705244 6971083 13 14 1 12.6 12.6
SG180 705194 6971130 46 50 4 3.08 12.33
I013 705192 6971135 2 8 6 2.02 12.12
SILVER LINING BR054 709916 6965352 30 36 6 1.97 11.82
IRONCLAD ICRC007 705185 6971063 53 55 2 5.8 11.6
I018 705178 6971138 16 19 3 3.82 11.46
SG184 705220 6971104 13 15 2 5.7 11.39
I104 705246 6971073 11 12 1 11 11
IRONCLAD E 57/769-I ICRC008 705160 6971049 99 100 1 11 11
SG166 705246 6971074 41 48 7 1.57 10.97
KISMET SSTA35 705335 6971002 35 38 3 3.62 10.87
IRONCLAD SG188 705256 6971067 10 15 5 2.16 10.81
WOODIES WRB016 713196 6961152 37 46 9 1.2 10.76
IRONCLAD ICRC006 705167 6971099 42 44 2 5.33 10.65
IRONCLAD E 57/769-I SG187 705230 6971101 43 46 3 3.42 10.27
KISMET SSTR38 705335 6971002 17 25 8 1.28 10.25
IRONCLAD SG164 705288 6971046 24 27 3 3.38 10.13
Appendix 3
2024 Grab/Rock Chip Au Assay Results
Sample ID Easting Northing RL Au Result (ppm) Comments
MGA94 Zone 50 MGA94 Zone 50
BGR01 705611 6968768 510 2.401 Quartz vein with hematite alteration and oxidised pyrite nodules
BGR02 705493 6968991 510 3.67 Quartz vein with hematite alteration and oxidised pyrite nodules. Spoil grab.
BGR03 706620 6967801 510 5.114 Quartz vein with hematite alteration and large cubic oxidised pyrite
BGR04 710107 6964345 510 0.1 Sericite and silica altered quartz vein with epidote stringers and pyrite in
sheared mafic
BGR05 710141 6964491 510 44.041 Quartz vein with sulphides from mullock pile
BGR06 710136 6964511 510 17.268 Sheared mafic from foot wall side of costean
BGR07 710097 6964799 510 0.14 Grab of mineralised vein from trench
BGR08 710074 6964903 510 0.113 Grab of quartz material from trench
BGR09 710090 6964917 510 0.062 Grab of quartz material from surface with stockwork of quartz veins
BGR10 709992 6964937 510 3.196 Grab of spoil material from Magnum Bonum North
BGR11 709992 6964973 510 2.812 Quartz float grab sample from surface
BGR12 710169 6964185 510 0.062 Sheared Basalt with 2cm quartz vein and oxidised pyrite
BGR13 710470 6962883 510 2.482 Grab of quartz veining around the shaft
BGR14 710471 6962885 510 0.729 Rock chips of in situ veining
BGR15 710471 6962952 510 5.879 Weathered gabbro with oxidised sulphides
BGR16 710239 6963354 510 0.029 Weathered gabbro with quartz stringer veins and chlorite alteration
BGR17 703407 6977563 510 0.01 Bucky white smokey quartz float with oxidised sulphides
BGR18 703338 6977748 510 0.002 Bucky with quartz vein, larger pitted pyrite
BGR19 703169 6977725 510 0.609 Quartz vein, iron and goethite staining plus pyrite
BGR20 703125 6977725 510 0.155 Bucky white quartz veining
BGR21 701495 6977738 510 0.028 Sheared quartz vein with flakes of muscovite and goethite staining
BGR22 701489 6977726 510 0.154 Grab sample from the mullock dump around the shaft
BGR23 704044 6971992 510 0.014 Smaller secondary veining within larger bucky vein with mica, pyrite and
sericite
BGR24 704062 6971991 510 0.316 Sampled in situ from vein in wall of shallow shaft at Treasure
BGR25 704076 6971985 510 0.071 Sampled in situ from edge of workings at Treasure
BGR26 703559 6972271 510 0.015 Sheared felsic with silica-sericite alteration, goethite and fine pyrite
BGR27 703560 6972271 510 0.031 Sheared quartz vein pitted pyrite with goethite alteration
BGR28 703506 6972237 510 0.033 Flat lying splayed quartz vein from large bucky vein
BGR29 703496 6972240 510 0.034 Horse tail splay of quartz veins in wall of costean
BGR30 703496 6972241 510 0.36 Sample of the large bucky quartz vein as a control
BGR31 703568 6972259 510 0.588 Vertical white quartz vein on edge of trench
BGR32 703456 6972125 510 0.037 Grab of float quartz vein from riverbed west of Hercules
BGR33 704919 6971459 510 1.255 Grab samples of weathered basalts from Lupton's East workings
BGR34 704903 6971500 510 0.014 Goethite rich quartz vein
BGR35 704802 6971413 510 0.027 Quartz grab at surface
BGR36 704743 6971515 510 0.411 Basalt with quartz veining with chlorite, goethite and pyrite
BGR37 704745 6971516 510 0.063 Quartz chlorite schist on contact. Grab sample
BGR38 704748 6971533 510 0.558 Quartz vein with Chrysocolla
BGR39 704754 6971542 510 0.568 Large boulder with gabbro contact with quartz pyrite goethite and oxidised
pyrite (Mystery type sample)
BGR40 704759 6971551 510 1.543 Foliated basalt with oxidised cubic pyrite
BGR41 704693 6971783 510 0.98 Basalts with kaolin in weathered fractures
BGR42 704722 6971793 510 4.753 Basalts with kaolin in weathered fractures parallel load
BGR43 705258 6971068 510 5.527 Grab sample of quartz veining with hematite and goethite alteration
Appendix 4 - JORC Table 1
Section 1: Sampling Techniques, and Data
(Criteria in this section apply to all succeeding sections).
Criteria Commentary
Sampling techniques Australian Titanium
Sampling activities include 43 grab and rock chip samples collected by
Australian Titanium between 16-18 April 2024. Samples consisted of 1-3kg of
mullock spoil or in situ outcrop sampled using a handheld geo pick hammer.
Samples were collected in numbered calico bags and dispatched to Intertek
Genalysis and assayed by fifty-gram fire assay with ICP-MS finish (FA50/MS)
for Au, Pd and Pt.
Historical Drill Data (Prior to Australian Titanium)
Limited details about historical sampling methods not carried out by NEOMETALS
were included in the WAMEX reports. Historical sampling referenced has been
carried out by Samson Exploration NL, Regional Resources NL, Black Swan Gold
Mines Ltd, Acclaim Exploration NL, Golden West Resources Ltd, Great Australian
Resources NL, St Barbara Mines Limited, and Classic Minerals Ltd. Sampling
included soil sampling, reverse circulation (RC) drilling, diamond drilling
(DD), rotary air blast (RAB) drilling, aircore (AC) drilling, and unknown (UK)
drilling.
RAB/AC sampling:
· Samson Exploration 1987 (A21923, A22002, A22584, A22837, A23205,
A23650, A23662, and A24458). Used spear sampling of 2m to 6m composite samples
which were submitted to an appropriate lab for gold determination by Aqua
Regia, such as Minlab.
· Acclaim Exploration NL 1996 (Acclaim, A49171, A52165), One metre
sample piles were sampled with a scoop as four metre composites of average
weight 2.5kg. Samples were then transported to Perth and assayed; those above
0.2g/t Au were resampled at one metre intervals using the scoop and calico
bags. Assayed at Genalysis by Aqua Regia Digest with unknown finish.
· Dominion Mining Ltd 1992 (Dominion, A35163), drilled 92 RAB holes
for 2,107m taking bottom of hole samples and 18 additional samples at the
discretion of the geologist logging the holes. All samples were analysed for
Au, As, Cu, Pb, Zn and Ni by Genalysis in Perth.
· Samson Exploration NL 1993 (Samson, A40046). Holes were sampled
at 1m intervals and 5m composite samples were sent to Australian Assay
Laboratory to be assayed using Fire Assay, aqua regia digest, and carbon rod
finish with 1ppb lower detection limit. 30g charges of 250g pulps were used
for repeat assays.
· Samson 1995 (A44301) One metre intervals were sampled and four
metre composites collected. Anomalous composite samples (generally greater
than 0.25ppm Au) were resampled at one metre and assayed at Minlabs Perth
using aqua regia digest and AAS analysis for gold, arsenic and copper. A total
of 1531 4m composite samples were collected with a further 119 one metre
resamples taken.
· Tindals Gold Mines NL 1995 (Tindals, A47011). Samples were laid
out in 1m piles and 4m composite samples were collected. Samples were assayed
at Minlabs Perth using aqua regia digest and AAS analysis for Au(ppb), V(ppm)
and Cu(ppm).
· Newcrest Mining Limited 1996 (Newcrest, A47114). 4m composite
samples were taken for all holes and sent to Genalysis Laboratory Services for
low level Au B/ETA (1ppb) and As and Cu B/AAS (ppm) analysis.
· Great Australian Resources 1985 (GAR, A16272) and 1986 (A17137).
Holes were sampled at 2m intervals using an unknown method. Samples were
assayed for gold at Pilbara Labs using AAS and Aqua Regia digest. Samples with
massive titano-martite were also assayed for Fe, V, Ti, Cr, Ni, Pt and Pd by
fire assay.
· St Barbara Mines Limited 1997 (St Barbara, A52148), 2000
(A61495), and 2001 (A62800). 6m composite samples were taken by unknown
method. Samples were sent to SBML laboratory at Bluebird and assayed for gold
by 50g Fire Assay with AAS finish. Samples that assayed >= 0.1ppm Au were
re-assayed at 1m intervals.
RC sampling:
· Miralga Mining NL 1986 (Miralga, A22658). Samples were collected
at 1 metre intervals and riffle split to 2 kg. The samples were sent to ALS
Perth for gold determination by Au50 Fire Assay analysis which has a 0.01ppm
detection limit.
· Samson 1987 - as for Aircore.
· Black Swan Gold Mines Ltd 1992 (BSGM, A37144). Samples weighing
around 1kg collected every metre from a mechanical splitter attached to the
rig.
· Acclaim 1996 (A52165) and 1997 (A48813). 1m samples were
collected using a cyclone and splitter.
· Golden West Resources 2008 (GWR, A78133). Samples were collected
in 1m intervals using a cone splitter attached to the cyclone, residues were
collected in plastic bags.
DD sampling:
· Samson 1987 - RC pre-collars submitted at 1m intervals for Au
(AAS) and the core was selectively sampled and intervals were cut into
quarters. One quarter was sent for Au assay by Fire Assay and the remaining
core kept.
Samson Exploration drilled several holes of unknown type in 1988 (A26799). No
sampling information was available for these holes in the WAMEX report.
The Competent Person considers these methods of sampling to be appropriate for
this style of exploration and consistent with industry practise at the time.
Drilling techniques Historical Drill Data (Prior to Australian Titanium)
RAB/Aircore drilling was carried out for:
· Samson 1987 - Cockburn Drilling using a Mole Pioneer Pl60. All
holes were 20m holes drilled at -60° to grid west, along grid lines 100
metres apart.
· Acclaim 1996, Holes were drilled by Orbit drilling using a KL150
rig with 250psi at 650cfm. Holes were drilled to blade refusal. Holes were
between 8 and 108m deep. Holes were drilled at -60(o) to grid west or east.
· Dominion 1991, 1992 and 1993 completed by Kennedy Drilling of
Kalgoorlie. Holes were between 1 and 39m deep and were all drilled vertically.
· Samson 1993 was carried out by Ryanex Pty Ltd using a
Deutz-powered self-built rig with a capacity of 400 cfm at 175 psi. Holes were
between 5 and 84m deep and were all drilled vertically.
· Samson 1995, completed by Challenge Drilling using a Challenger
RA150 rig. Holes were between 9 and 75m deep. Holes were either drilled
vertically, or at -60(o) to grid east.
· Tindals 1995 was completed by Challenge Drilling using a
Challenger RA150 rig. Holes were between 1 and 64m deep. Holes were drilled
vertically or at -60(o) to grid east.
· Acclaim 1996 was completed by Orbit Drilling using a KL150
drilling rig with 250psi/650cfm capacity. Holes were between 3 and 98m deep.
Holes were drilled at -60(o) to grid west or east. One hole was a water bore
drilled vertically.
· Newcrest 1996 was completed by Challenge Drilling. Holes were
between 2 and 101m deep and all holes were drilled vertically.
· GAR 1985 and 1986. Holes were drilled by Kennedy Drilling using a
Mole Pioneer drill rig. Holes were between 22 and 74m deep. Holes were drilled
at -60(o) to grid east.
· St Barbara 1997, 2000, and 2001. Holes were drilled by an unknown
contractor using a GEMCO drill rig. Holes were 3 to 50m deep. Holes were
drilled at -60(o) to grid west or east.
RC drilling was carried out by:
· Miralga 1986 by Civil Drilling Services using an Ingersoll-Rand
TH 60 rig having 250psi with 750cfm capacity. Holes were between 38 and 50m
deep. Holes were drilled at -60(o) to grid west or east.
· Samson 1987 Holes were completed by Green Drilling using a
Schramm 66. Holes were between 15 and 93m. Holes drilled vertically or at
-60(o) with azimuths between 30(o) and 260(o) grid.
· BSGM 1992 (was completed by Leonora Drilling Pty Ltd using an RC
aircore drilling rig. Holes were between 20 and 31m deep. Holes were either
vertical or drilled at -60(o) with azimuths between 60(o) and 240(o) grid.
· Acclaim 1996 and 1997 was completed by Butchart Drilling using an
Ingersoll Rand THIO drill-rig drilling 5.25-inch holes using a face sampling
hammer and an RC rod string. Holes were between 104m and 128m deep at -60(o)
with 60(o) azimuths grid.
· GWR 2008 were drilled by contractor Grovebrook Drilling. Vertical
holes were between 101 and 200m deep.
· Samson 987 diamond drilling by Green Drilling using a Schramm 66
for the RC pre-collars and Collie Drilling completing the NQ coring portions
of the holes. Holes were between 45 and 51m deep, drilled at -60(o) with
223(o) azimuth grid.
Drill sample recovery Historical Drill Data (Prior to Australian Titanium)
Limited sample recovery and condition information has been found in the
historical reports to date.
Logging Historical Drill Data (Prior to Australian Titanium)
In some cases, original coordinates were only provided in unknown local grids.
In these cases, MGA coordinates for holes were derived by georeferencing maps
contained in the WAMEX reports and digitising the collars and it is expected
that the accuracy of hole collar coordinates is within a few metres - roughly
equivalent to GPS accuracy. Historic tenement boundaries and landmarks visible
on aerial photography were used to georeference the maps. Minor corrections
were then made where drill pads were still visible on aerial photography.
For reports that only contained handwritten logs, hole dips and azimuths were
based on planned hole details, compass readings, or averages of survey tool
measurements. These measurements are considered less reliable than modern
downhole survey using north-seeking gyro.
· Miralga 1986 consist of handwritten drill logs included as an
appendix and are consistent with logging procedures of the time with a Hole
ID, Co-ordinates, Rock description, a summary description, sample number, and
logged metre interval with an end of hole depth recorded.
· Samson 1987 consist of handwritten drill logs included as an
appendix and are consistent with logging procedures of the time with a Hole
ID, Co-ordinates, Rock description, a summary description, sample number, and
logged metre interval with an end of hole depth recorded.
· Acclaim 1997, Chip Logging: A representative selection of sample
of each metre was logged using a binocular microscope onto a graphical log at
1 :200 scale. Special notes were made of the sample quality and approximate
water depth. Original drill logs are consistent with logging procedures of the
time with a Hole ID, Co-ordinates, Rock description, a summary description,
sample number, and logged metre interval with an end of hole depth recorded.
· Dominion 1991, 1992 and 1993 consist of handwritten drill logs
included as an appendix and are consistent with RAB logging procedures of the
time.
· BSGM 1992 consist of handwritten drill logs included as an
appendix and are consistent with RC and AC logging procedures of the time.
· Samson 1993 and 1995 consist of handwritten drill and are
consistent with RAB logging procedures of the time.
· Tindals 1995 consist of handwritten drill logs and are consistent
with RAB logging procedures of the time.
· Newcrest 1996 consist of handwritten drill logs included as an
appendix and are consistent with RAB logging procedures of the time with a
Hole ID, Co-ordinates, rock description, a summary description, sample number,
and logged metre interval with an end of hole depth recorded.
· Acclaim 1996 consist of handwritten drill logs are consistent
with RAB logging procedures of the time.
· GWR 2008 included digital logs and are consistent with logging
procedures of the time. Downhole survey data were generated by handheld
compass, though the holes are all vertical, so this is not considered
problematic.
· GAR 1985 and 1986 (consist of handwritten drill logs and are
consistent with RAB logging procedures of the time.
· St Barbara 1997, 2000, and 2001 consist of handwritten drill logs
and are consistent with RAB logging procedures of the time.
· Samson 1988. No logging information was located for these holes.
Hole collar coordinates were derived by georeferencing maps, and other hole
details and assays were derived from cross sections in the report.
Sub-sampling techniques and sample preparation Australian Titanium
Rock chip samples were collected in numbered calico bags and dispatched to the
Intertek Genalysis for fifty-gram fire assay with ICP-MS finish (FA50/MS) for
Au, Pd and Pt.
Historical Drill Data (Prior to Australian Titanium)
Limited details about historical sub-sampling was located.
· Miralga 1986 samples were collected at 1 metre down hole
intervals prior to being riffled on site to an assay sample weight of
approximately 2kg. The sample residues for each metre were bagged, numbered,
and left in rows at the drill site. Samples were dispatched to Australian
Assay Laboratories in Perth for gold assay by 50g fire assay with 0.1ppm
detection limit.
· Samson 1987 reported samples were collected at one-metre
intervals by spearing. Samples were dispatched to Minlab for gold
determination by Aqua Regia, with a detection limit of 0.05ppm. Approximately
5% of the coarse rejects were submitted to Resource Development Laboratories
of Perth for cross-checking by Fire Assay.
· Acclaim 1997 reported that samples were collected at one-metre
intervals by cyclone and splitter. Green bags caught the drill spoil passed
through the cyclone for each metre. The resulting sample was tipped through
the 87.5:12.5 multiple splitter. The sample residues were collected in
numbered plastic UV bags and put in rows of 20, the 12.5 split was collected
in numbered calico bags and weighed to ensure the sample weight did not exceed
3.3kg. If the weight exceeded this, it was re-split through a single stage
splitter. Samples were dispatched to Ultratrace laboratories in Belmont Perth.
Samples were dried in the calico bags then pulverised in a LM5 disc Mill. A
50g charge was then assayed for Au, Pt, and Pd by Aqua Regia digest with
ICP-OES finish. A selection of mineralised samples from each hole were
submitted to Genalysis for screen Fire Assay.
· Dominion 1991 to 1993. End of hole samples were taken and
dispatched to Genalysis Laboratory Services Pty Ltd. Samples were analysed for
Au by Aqua Regia with AAS finish (B/ETA), and As, Cu, Sb, Bi, Mo, Pb, Zn and
Ni by Aqua Regia digest with AAS finish (B/AAS)
· BSGM 1992 holes were sampled every metre. No details on sampling
methodology were included in the report. Samples were assayed for gold by Fire
Assay at an unknown laboratory.
· Samson 1993. Cuttings were collected at 1m intervals and laid out
in lines with five-metre composites collected. Samples were sent to Australian
Assay Laboratory and assayed using Fire recovery, Aqua Regia Digest, and
Carbon Rod finish with a detection limit of 1ppb Au. 30g of 250g pulps were
used for repeat assays.
· Samson 1995. Cuttings were collected at 1m intervals and laid out
in lines with four-metre composites collected. Samples were dispatched to
Minlabs in Perth and assayed for Au, As, and Cu by Aqua Regia digest with AAS
finish. Composite results >0.25ppm Au were resampled on a one-metre basis
and assayed using the same method.
· Tindals 1995. Cuttings were collected at 1m intervals and laid
out in lines with four-metre composites collected. Samples were dispatched to
Minlabs in Perth for Aqua Regia assay with AAS finish for gold (ppb), vanadium
(ppm) and copper (ppm).
· Newcrest 1996. Cuttings were collected at 1m intervals and laid
out in lines with four-metre composites collected. Samples were dispatched to
Genalysis Laboratory Services Pty Ltd and assayed for gold by Aqua Regia
digest with AAS finish (B/ETA - 1ppb detection limit), and As and Cu by Aqua
Regia digest with AAS finish (B/AAS - 5ppm and 1ppm detection limit
respectively).
· Acclaim 1996 to 1997. Samples were laid out in one-metre piles
next to the hole with a pin marker placed in the first metre with the hole
number. Samples were collected using an aluminium scoop for four-metre
composites for an average 2.5kg sample. Samples were packed in poly-woven bags
and taken to Key Transport Meekatharra for transport to Perth. Composite assay
results > 0.2g/t Au were resampled at one-metre intervals using scoop and
calico bags. Samples were sent to Genalysis Perth for Au analysis by Aqua
Regia with a 1ppb detection limit.
· GWR 2008. Samples were collected in 1m intervals using a cone
splitter attached to the rig cyclone, residues were collected in plastic bags.
Samples were dispatched to SGS laboratory for analysis of Au and As. Au was
analysed by method FAA505 and As by method AAS21R.
· GAR 1985 and 1986. Holes were sampled at 2m intervals using an
unknown method. Samples were assayed for gold at Pilbara Labs using AAS and
Aqua Regia digest. Samples with massive titano-martite were also assayed for
Fe, V, Ti, Cr, Ni, Pt, and Pd by fire assay.
· St Barbara 1997, 2000 and 2001. 6m composite samples were taken
by unknown method. Samples were sent to SBML laboratory at Bluebird and
assayed for gold by 50g Fire Assay with AAS finish. Samples that assayed >=
0.1ppm Au were re-assayed at 1m intervals.
· Samson drilled several holes of unknown type in 1988. No sampling
information was available for these holes in the WAMEX report.
The Competent Person considers these methods of sub-sampling and assay to be
appropriate for this style of exploration and consistent with industry
practise at the time.
Quality of assay data and laboratory tests Australian Titanium
To assure sample quality met the standards required by the Company and the
mineralisation being sampled, the commercial lab's procedures and equipment
were inspected and assessed for (among other things) maintenance, cleanliness,
and appropriateness for the task. Company history and personnel experience
were also assessed.
One CRM was included in the batch of samples submitted for rock chip analysis
to Intertek Genalysis for assay. The lab also performed lab duplicate checks
and inserted CRMs into the batch as part of their routine QAQC checks. The
company analysed the performance of these duplicates and CRMs as results
became available to ensure issues were detected and meaningful corrective
actions implemented.
Historical Drill Data (Prior to Australian Titanium)
All historical samples are assumed to have been prepared and assayed by then
industry standard techniques and methods.
Limited historical QAQC data were available in the WAMEX reports. Industry
standard best practice is assumed in regard to QAQC
· Miralga 1986 utilised Australian Assay Laboratories Group.
Reports indicate the lab carried out repeats of primary samples however there
is no indication of standards or blanks being used.
· Samson 1987 samples were dispatched to Minlab for gold
determination. Approximately 5% of the coarse rejects were submitted to
Resource Development Laboratories of Perth for cross-checking by fire assay.
· Acclaim 1997. Samples were dispatched to Ultratrace laboratories
in Belmont Perth and subjected to a 50g aqua regia digest for Au, Pt and Pd
using ICP-OES method. Detection levels are 1ppb, 5ppb and 2ppb respectively.
Routine lab checking consisted of a random 6% of samples being analysed in
duplicate. No details on any standard or blank samples for these Aqua Regia
assays were in the WAMEX report. A selection of mineralised samples from each
hole were also submitted to Genalysis for screen Fire Assay as validation of
the Aqua Regia assays at Ultratrace. Standards and lab checks were included in
the WAMEX report for the Fire assays.
· Dominion 1991, 1992 and 1993. Samples were dispatched to
Genalysis Laboratory Services Pty Ltd, reported assay results show the use of
blanks, standards, and regular Au repeats.
· BSGM 1992. Assay by Fire Assay. Unclear which lab was used.
Sample result sheets show standards and duplicates were included in the assay
methodology.
· Samson 1993 and 1995. Samples were dispatched to Minlabs in Perth
and assayed by Aqua Regia digest with AAS finish analysis for gold, arsenic,
and copper. 1ppb detection limit for Au. Duplicates were completed for
selected samples. No standards or blanks were recorded in the WAMEX reports.
· Tindals 1995. Samples were dispatched to Minlabs in Perth for
Aqua regia assay with AAS analysis for gold (ppb), vanadium (ppm) and copper
(ppm). Reported assay results shows the use of regular Au repeats for QAQC by
the lab. No standard or blank samples were recorded.
· Newcrest 1996. Samples were dispatched to Genalysis Laboratory
Services Pty Ltd for low level Au B/ETA (1ppb) and As and Cu B/ASS (ppm)
analysis. Assay reports show no evidence of QAQC.
· Acclaim 1996 and 1997. Samples were sent to Genalysis Perth for
Aqua Regia analysis Au with a 1ppb detection limit. Samples from the Cove
prospect were also analysed for Au (1ppb), Cu (1ppm), Zn(1ppm), Ag (0.5ppm),
Ni (2ppm) and Co (0.5ppm). Check assays included assaying 4% of a random
selection of duplicate assays for all elements and well as up to 6% of
selected gold repeats. No blanks were used. Some standards were inserted into
batches.
· GWR 2008. Samples were dispatched to SGS laboratory for analysis
of Au and As. Au was analysed by Fire Assay method FAA505 and As by method
AAS21R. Check assays include a selection of lab gold repeats.
· GAR 1985 and 1986. Reports show lab duplicates were completed for
selected samples. No record of standards or blanks was included in the
reports.
· Samson 1988 Selected samples were assayed in duplicate. No
standards or blanks were reported.
· St Barbara 1997, 2000, and 2001. Two standards were inserted into
each lab batch and one in six samples were randomly selected for duplicate
assay. Samples that assayed >0.5g/t Au were re-assayed in duplicate.
The Competent Person considers that the quality of the historical assay data
is sufficient to provide an indication but absolute measure of the tenor of
mineralisation sampled.
Verification of sampling and assaying Australian Titanium
Geological data files were checked by the supervising geologist to ensure
integrity of logs and metadata prior to submission to the database manager and
upload to the hosted database. Assay files were received from the lab by the
data base administrator, reviewed, and uploaded to the hosted database. The
database hosting software includes automated error checking to flag any
incorrect codes or numerical data outside of expected ranges.
After import into the database, an export was created and all data underwent a
final check by the Senior Geologist and database manager.
Significant results were reviewed by multiple company geologists with
reference to geological logs.
Historical data (drill data prior to Australian Titanium)
Historical data was compiled by experienced geologists from existing digital
data sets downloaded from WAMEX or digitised from non-digital reports.
Digitised datasets were visually validated in both two and three dimensions.
Once validated complete datasets were compiled and uploaded to the hosted
database. The database hosting software includes automated error checking to
flag any incorrect codes or numerical data outside of expected ranges.
Outside of any details included in the historical reports any details about
data entry, verification, and storage protocols remains unknown for historical
operators.
Location of data points Australian Titanium
Samples were located in the field using hand- held GPS (accuracy 5m) in the
UTM zone 50J coordinate system (Equivalent to MGA94 zone 50 projection).
Historical Drill Data (Prior to Australian Titanium)
Historical collars are recorded as being located by DGPS, GPS, compass, hip
and chain measurement, or unknown methods. The original coordinates were
recorded in local grid, AMG66, AMG84, or MGA94 coordinate systems. Coordinates
were converted to MGA94 zone 50 using an automatic transformation in QGIS
where possible. Where unknown local grids were used, maps from WAMEX reports
were georeferenced and collars were digitised from the maps. In some cases,
minor corrections to collar locations were used based on visibility of
historic drill pads on aerial photography and satellite images. Little
information has been provided in terms of downhole survey methods. Historical
reports indicate a mix of compass, north-seeking gyro, Eastman single shot,
and multi shot downhole cameras being used.
Data spacing and distribution Historical Drill Data (Prior to Australian Titanium)
Based on the stages of exploration advancement for each of the project areas
covered within the historical reports data spacing and distribution is
considered appropriate for their style, stage, and level of understanding at
the time. However, by current standards most of the drill data prior to 1990
are considered suboptimal.
The Competent Person considers that the spacing of the data is sufficient to
provide an indication but absolute measure of the presence and location of
mineralisation sampled and is suitable for geological targeting.
Orientation of data in relation to geological structure Historical Drill Data (Prior to Australian Titanium)
Based on drill hole orientations and the regional aeromagnetics it appears
that previous explorers attempted to drill holes perpendicular to the
interpreted strike of the structures. The presence of historical workings
would have aided them in orientating the drilling appropriately. A review of
the historic data has determined that the orientation of drill holes was
appropriate for the level of understanding at the time.
Sample security Australian Titanium
Chain-of-custody protocols included supervision by Company employees of the
samples while on site and transportation of samples to the lab.
Historical Drill Data (Prior to Australian Titanium)
Sample security measures are unknown and generally not referenced in the
reports.
Audits or reviews No independent audits or reviews of sampling techniques and data were
conducted.
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section).
Criteria Commentary
Mineral tenement and land tenure status Drilling and Rock chip data being reported are located within 100% owned
granted mining lease M57/173-I, and exploration licences E57/769-I and
E57/770-I in the Eastern Murchison Goldfields. No known impediments exist to
operate in the area.
Exploration done by other parties The Company has owned and been exploring Barrambie for approximately 25 years.
The information below is based on annual technical reports submitted to DMIRS
and available through the online WAMEX portal: Each report is identified by
its unique A-number (e.g. Miralga Mining NL 1986 report A22658). The annual
technical reports contain detailed context about the work completed and
results achieved, including digital data for more recent reports.
Gold at Barrambie was discovered in 1905 during the construction of the Rabbit
Proof Fence. Subsequent prospecting opened four main gold centres in the
Barrambie area, namely:
1. Barrambie Centre (including the Barrambie Gold Mine)
2. Scheelite Centre* (including the Dohertys Gold Mine)
3. Sugarstone Centre (including Sugarstone Gold Mine, Mystery Gold Mine)
4. Errolls Centre* (including the Legacy Gold Mine)
The total production from the 4 mining centres mentioned above totalled 27,294
ounces of gold from 34,233 long tons of treated ore at an average grade of
24.8g/t Au.
Location Years Tonnes Ore Au (g/t) Gold (oz)
Errolls 1906 - 1919 10,141 19.01 6,197
Barrambie 1907 - 1966 16,530 28.96 15,390
Sugarstone 1908 - 1913 5,270 22.90 3,880
Dohertys 1955 - 1985 2,292 24.79 1,827
Total 34,233 27,294
· Miralga 1986 focused exploration around the Legacy mine which was
discovered in 1905. Surrounding the Legacy mine is the Three Star mine and the
Inheritance mine, with reported combined production of 6,011.84 ounces of
gold. Miralga completed 15 RC holes targeting the historic workings looking
for strike and down dip extensions of the structures mined.
· Samson 1987 completed soil sampling, costeaning, and drilling of
380 RAB holes, 152 RC holes and 2 diamond holes. Rock chips were taken from
the old workings. Geological maps were produced at 1:10,000 scale. Samson
defined three historic estimates of gold mineralisation:
o Ironclad: 134,000t @ 3.2g/t Au (Sjerp, 1989)
o Errolls: 28,000t @ 4.1g/t Au (Sjerp, 1989)
o Dohertys: 6,500t @ 21.3g/t Au (Tomich, 1989)
The Competent Person cautions that these estimates were not estimated or
reported in accordance with the JORC Code or any of its precedents and do not
comprise Mineral Resource estimates but are indications of the presence of
mineralisation.
· Acclaim 1996 explored from the Errolls prospect south to the
Barrambie Mining Lease, including the Sugarstone/Mystery and Ironclad
prospects. Acclaim completed 13 RC holes for 1,421m to test the depth and
strike of the Ironclad prospect and also completed geochemistry over the
Floodway East prospect, following up on historic RAB drilling. Acclaim drilled
110 RAB holes for 5,928m to test Au anomalies from previous soil samples. They
also completed 538 soil samples across the tenement to detect gold anomalism.
· Dominion 1991 to 1993:
o Exploration an area northeast of the Ironclad prospect consisted of 94
vertical RAB holes targeting the greenstone granite contact.
o At Errolls North exploration consisted of lag sampling and 41 vertical RAB
holes targeting Archean bedrock for bottom of hole Au and multielement
analysis.
· BSGM 1992 explored the Barrambie Range to feed the company's
Whistler Gold operation, 50km to the east. Drilling focused on identifying
mineralisation in the top 20m of the Ironclad prospect, comprising 125, 20m
deep RC holes and further drilling at Errolls and Dohertys, which are off
NEOMETALS tenure.
· Samson:
o In 1993, exploration included soil sampling, ground mag and RAB drilling.
A total of 83 RAB holes were drilled targeting a shear structure
o In 1995, work comprised 120 RAB holes testing several targets generated
from 1993 ground magnetics and RAB geochemical anomalies.
· Tindals 1995 exploration comprised 63 RAB holes drilled on the
Barrambie Greenstone Belt assaying for As, As and Cu.
· Newcrest 1996 explored the Errolls joint venture project where 63
RAB holes were drilled in the reporting period.
· Acclaim 1996 121 RAB holes were drilled following up on Au in
soil and rock-chip anomalies and 25 RC holes drilled testing Au mineralisation
discovered at the Woodies and Silver Lining Prospects.
· GWR 2008 drilled into the Dohertys prospect for 6 holes with the
assay results reported later. Drilling intersected the Dohertys quartz vein
and associated pyrite mineralisation.
· Samson 1996 explored the Dohertys gold mine and Barrambie Ranges
and completed aerial photography, gridding, sampling and mapping, stream
sediment samplings, RAB drilling, RC drilling, diamond drilling, underground
exploration, metallurgical sampling and dump sampling at Dohertys mine.
· GAR 1985 and 1986 drilled 114 RAB holes for a total of 5,479m to
test for gold potential at the Barrambie and Sugarstone mining centres and to
test the gold potential of titano-martite bearing rocks.
· St Barbara 1997, 2000 and 2001 explored the Kismet, Sugarstone,
and Ironstone prospects and drilled 41 AC holes for 1,708m, and 15 RAB holes
for 621m at the Kismet prospect to test granitoid contacts and old workings.
25 RAB holes for 868m were drilled to the east of Ironclad to test granitoid
contacts.
Geology The Barrambie gold project occurs within the Archaean Barrambie Greenstone
Belt, which is a narrow, NNW-SSE trending greenstone belt in the northern
Yilgarn Craton. The linear greenstone belt is about 60 km long and attains a
maximum width of about 4 km. It is flanked by banded gneiss and granitoids.
The Barrambie Sill is comprised of anorthositic magnetite-bearing gabbros that
intrude a sequence of metasediments, banded iron formation, metabasalts and
metamorphosed felsic volcanics of the Barrambie Greenstone Belt. The
metasediment unit forms the hanging-wall to the layered sill complex.
All of the rocks of the Eastern Goldfields Superterrane have been subjected to
the same post 2720 Ma structural history, comprising the D1 to D6 of Blewett
and Czarnota (2010). The layered sequence is folded into an upright isoclinal
anticline with attendant minor folds plunging to the northwest at 30 degrees.
A Strong schistosity has developed as an axial plane fabric and is parallel or
sub-parallel to the bedding.
Early shears trend from 345° to 360° with later faults trending 070° to
090°. Later second order faults trend 060°. Fault displacements range from a
few metres to 400 metres.
Historically gold mineralisation was reported to occur mainly within the
preserved eastern limb of the anticline and that the western limb was
interpreted to have been consumed by intruding granites.
Historically it has been reported that the gold mineralisation occurs mainly
within the preserved eastern limb for a strike length of 35km.
The mineralisation is structurally controlled. It occurs:
• In N-S shear-zones (Barrambie Ranges, Sugarstone-Mystery,
Kismet-Errolls).
• Shear zones off a N-S strike will have mineralisation associated
with a stockwork of quartz veins (Ironclad, Silver Lining, Old Mill).
Orientation of the shear will dictate the dips of the shears. Shears that
strike 120° tend to dip steeply to the east. Shears that strike 050-060° dip
flatly to moderately northwest or southeast.
• Infilled quartz vein stockworks within shear zones of the
vanadium-titanium Barrambie Sill (White Dingo, Cove, Lost Chance).
• Infilled quartz-filled ferruginous saddle reef (or drag-fold)
structures (Scheelite Gold Mine, Dohertys).
Drill hole Information All drill summary data material to the understanding of the exploration
results has been included in the above announcement to which this table is
attached.
Data aggregation methods Intercepts tabulated in Appendix 2 are based on a minimum intercept of 10
gram*meters, lower cut off of 0.6g/t Au and a maximum internal dilution of 1m.
The historic results reported consist of grade widths greater than 10ppm. No
top assay cut was applied.
Relationship between mineralisation widths and intercept lengths All holes were drilled perpendicular to the interpreted orientation of known,
mineralised structures. Intercepts reported use down-hole lengths.
Diagrams Representative geological and drill location plans and cross sections are
included in the above announcement to which this table is attached.
Balanced reporting It is not practical to report all historical exploration results from the
Barrambie gold project. Selected historical intercepts have been re-reported
by Neometals to highlight the prospectivity of the region. Full drillhole
details can be found in the publicly available historical annual reports
listed in this table.
Other substantive exploration data See ASX announcements 17th April 2018, 8th November 2017, 11th September 2017
and 6th December 2013 for further information regarding the Barrambie deposit.
Further work Further work is discussed in the document.
· Miralga 1986 focused exploration around the Legacy mine which was
discovered in 1905. Surrounding the Legacy mine is the Three Star mine and the
Inheritance mine, with reported combined production of 6,011.84 ounces of
gold. Miralga completed 15 RC holes targeting the historic workings looking
for strike and down dip extensions of the structures mined.
· Samson 1987 completed soil sampling, costeaning, and drilling of
380 RAB holes, 152 RC holes and 2 diamond holes. Rock chips were taken from
the old workings. Geological maps were produced at 1:10,000 scale. Samson
defined three historic estimates of gold mineralisation:
o Ironclad: 134,000t @ 3.2g/t Au (Sjerp, 1989)
o Errolls: 28,000t @ 4.1g/t Au (Sjerp, 1989)
o Dohertys: 6,500t @ 21.3g/t Au (Tomich, 1989)
The Competent Person cautions that these estimates were not estimated or
reported in accordance with the JORC Code or any of its precedents and do not
comprise Mineral Resource estimates but are indications of the presence of
mineralisation.
· Acclaim 1996 explored from the Errolls prospect south to the
Barrambie Mining Lease, including the Sugarstone/Mystery and Ironclad
prospects. Acclaim completed 13 RC holes for 1,421m to test the depth and
strike of the Ironclad prospect and also completed geochemistry over the
Floodway East prospect, following up on historic RAB drilling. Acclaim drilled
110 RAB holes for 5,928m to test Au anomalies from previous soil samples. They
also completed 538 soil samples across the tenement to detect gold anomalism.
· Dominion 1991 to 1993:
o Exploration an area northeast of the Ironclad prospect consisted of 94
vertical RAB holes targeting the greenstone granite contact.
o At Errolls North exploration consisted of lag sampling and 41 vertical RAB
holes targeting Archean bedrock for bottom of hole Au and multielement
analysis.
· BSGM 1992 explored the Barrambie Range to feed the company's
Whistler Gold operation, 50km to the east. Drilling focused on identifying
mineralisation in the top 20m of the Ironclad prospect, comprising 125, 20m
deep RC holes and further drilling at Errolls and Dohertys, which are off
NEOMETALS tenure.
· Samson:
o In 1993, exploration included soil sampling, ground mag and RAB drilling.
A total of 83 RAB holes were drilled targeting a shear structure
o In 1995, work comprised 120 RAB holes testing several targets generated
from 1993 ground magnetics and RAB geochemical anomalies.
· Tindals 1995 exploration comprised 63 RAB holes drilled on the
Barrambie Greenstone Belt assaying for As, As and Cu.
· Newcrest 1996 explored the Errolls joint venture project where 63
RAB holes were drilled in the reporting period.
· Acclaim 1996 121 RAB holes were drilled following up on Au in
soil and rock-chip anomalies and 25 RC holes drilled testing Au mineralisation
discovered at the Woodies and Silver Lining Prospects.
· GWR 2008 drilled into the Dohertys prospect for 6 holes with the
assay results reported later. Drilling intersected the Dohertys quartz vein
and associated pyrite mineralisation.
· Samson 1996 explored the Dohertys gold mine and Barrambie Ranges
and completed aerial photography, gridding, sampling and mapping, stream
sediment samplings, RAB drilling, RC drilling, diamond drilling, underground
exploration, metallurgical sampling and dump sampling at Dohertys mine.
· GAR 1985 and 1986 drilled 114 RAB holes for a total of 5,479m to
test for gold potential at the Barrambie and Sugarstone mining centres and to
test the gold potential of titano-martite bearing rocks.
· St Barbara 1997, 2000 and 2001 explored the Kismet, Sugarstone,
and Ironstone prospects and drilled 41 AC holes for 1,708m, and 15 RAB holes
for 621m at the Kismet prospect to test granitoid contacts and old workings.
25 RAB holes for 868m were drilled to the east of Ironclad to test granitoid
contacts.
Geology
The Barrambie gold project occurs within the Archaean Barrambie Greenstone
Belt, which is a narrow, NNW-SSE trending greenstone belt in the northern
Yilgarn Craton. The linear greenstone belt is about 60 km long and attains a
maximum width of about 4 km. It is flanked by banded gneiss and granitoids.
The Barrambie Sill is comprised of anorthositic magnetite-bearing gabbros that
intrude a sequence of metasediments, banded iron formation, metabasalts and
metamorphosed felsic volcanics of the Barrambie Greenstone Belt. The
metasediment unit forms the hanging-wall to the layered sill complex.
All of the rocks of the Eastern Goldfields Superterrane have been subjected to
the same post 2720 Ma structural history, comprising the D1 to D6 of Blewett
and Czarnota (2010). The layered sequence is folded into an upright isoclinal
anticline with attendant minor folds plunging to the northwest at 30 degrees.
A Strong schistosity has developed as an axial plane fabric and is parallel or
sub-parallel to the bedding.
Early shears trend from 345° to 360° with later faults trending 070° to
090°. Later second order faults trend 060°. Fault displacements range from a
few metres to 400 metres.
Historically gold mineralisation was reported to occur mainly within the
preserved eastern limb of the anticline and that the western limb was
interpreted to have been consumed by intruding granites.
Historically it has been reported that the gold mineralisation occurs mainly
within the preserved eastern limb for a strike length of 35km.
The mineralisation is structurally controlled. It occurs:
• In N-S shear-zones (Barrambie Ranges, Sugarstone-Mystery,
Kismet-Errolls).
• Shear zones off a N-S strike will have mineralisation associated
with a stockwork of quartz veins (Ironclad, Silver Lining, Old Mill).
Orientation of the shear will dictate the dips of the shears. Shears that
strike 120° tend to dip steeply to the east. Shears that strike 050-060° dip
flatly to moderately northwest or southeast.
• Infilled quartz vein stockworks within shear zones of the
vanadium-titanium Barrambie Sill (White Dingo, Cove, Lost Chance).
• Infilled quartz-filled ferruginous saddle reef (or drag-fold)
structures (Scheelite Gold Mine, Dohertys).
Drill hole Information
All drill summary data material to the understanding of the exploration
results has been included in the above announcement to which this table is
attached.
Data aggregation methods
Intercepts tabulated in Appendix 2 are based on a minimum intercept of 10
gram*meters, lower cut off of 0.6g/t Au and a maximum internal dilution of 1m.
The historic results reported consist of grade widths greater than 10ppm. No
top assay cut was applied.
Relationship between mineralisation widths and intercept lengths
All holes were drilled perpendicular to the interpreted orientation of known,
mineralised structures. Intercepts reported use down-hole lengths.
Diagrams
Representative geological and drill location plans and cross sections are
included in the above announcement to which this table is attached.
Balanced reporting
It is not practical to report all historical exploration results from the
Barrambie gold project. Selected historical intercepts have been re-reported
by Neometals to highlight the prospectivity of the region. Full drillhole
details can be found in the publicly available historical annual reports
listed in this table.
Other substantive exploration data
See ASX announcements 17th April 2018, 8th November 2017, 11th September 2017
and 6th December 2013 for further information regarding the Barrambie deposit.
Further work
Further work is discussed in the document.
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