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RNS Number : 2737S Greatland Gold PLC 08 March 2023
Greatland Gold plc (AIM: GGP)
E: info@greatlandgold.com
W: https://greatlandgold.com
: twitter.com/greatlandgold
NEWS RELEASE | 8 March
2023
Scallywag Exploration Results
Prospectivity of targets confirmed
Significant gold and multi-element geochemical anomalism detected
High-grade silver and copper mineralisation intersected
THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION AS STIPULATED UNDER THE UK
MARKET ABUSE REGULATIONS. ON PUBLICATION OF THIS ANNOUNCEMENT VIA A
REGULATORY INFORMATION SERVICE, THIS INFORMATION IS CONSIDERED TO BE IN THE
PUBLIC DOMAIN.
Greatland Gold plc (AIM:GGP; Greatland or Company) is pleased to announce the
results of its 2022 exploration programme at its 100%-owned Scallywag project
in the Paterson region of Western Australia. Scallywag is located adjacent
to Greatland's flagship Havieron gold-copper project which the Company
discovered in 2018.
Highlights
§ Hole A35RD001 targeting the A35 Prospect conductor intersected 2m @ 2.04g/t
Au from 70m, within a mineralised gold halo of 12m @ 0.48g/t Au from 69m
noting that the interval contains wet samples and immediately precedes a
missing sample. Significantly, anomalous bismuth and other pathfinder
geochemistry is associated with the intersection
§ Anomalous gold, strong silver and copper plus pathfinders identified while
testing a conductor at the Pearl prospect (PPDD003) include:
- 1m @ 1,364g/t Ag and 0.35% Cu from 76m (remains open at depth)
- 1m @ 0.76g/t Au and 109ppm Bi from 251m
- 1m @ 0.1% Cu and 22.6ppm Bi from 418m
- 1m @ 50.9ppm Bi from 65m
§ These results came as a result of a ground electromagnetic (EM) survey
(follow up on the 2021 programme) which confirmed and refined several EM
conductor targets, testing of which commenced with reverse circulation (RC)
pre-collar and diamond core drilling
Greatland Managing Director, Shaun Day, commented:
"Our recent exploration campaign at Scallywag has delivered the most
encouraging results to date."
"At the A35 Prospect, pre-collar drilling was completed with gold
mineralisation intercepted plus important pathfinder geochemistry encountered,
including bismuth which is associated with the Havieron and Telfer gold-copper
deposits. The high-grade silver and copper mineralisation intercepted at the
Pearl Prospect, confirms the possibility of a new style of deposit being
identified. The underlying deeper geophysical targets at both prospects are
yet to be tested but have now been prioritised for diamond drilling in 2023."
"These results, together with the continual improvement in understanding of
the buried geology, stratigraphy and structure, increase our confidence in the
prospectivity of the ground, and our ability to vector towards intrusion
related and other styles of mineralised systems at Scallywag."
Overview of the 2022 Scallywag Programme.
Exploration work in 2022 focused on drill testing prospects and anomalies
defined from previous ground EM and drilling programmes (see RNS Announcement
titled "Results from the 2021 Exploration Programme at Scallywag" dated 5
April 2022).
A specialised RC rig was used to drill pre-collars ahead of completing the
holes with a diamond rig with the aim of improving result turnarounds. A
total of eight RC pre-collar holes for 1,238m and one diamond hole with a
total depth of 488.6m, for a total of 1,726.6m, were completed (see Table 1
and Figure 1 below).
Table 1. 2022 Scallywag Prospects - Drill Hole Collar Data
Hole ID Prospect Hole Type EOH (m) GRID ID Easting Northing RL Dip Azi
SWRD004 Swan RC pre-collar 204 MGA94_51 445483 7607552 246 -63 107
SWRD005 Swan RC pre-collar 200 MGA94_51 446414 7607335 243 -65 85
A34RD001 A34 RC pre-collar 180 MGA94_51 447805 7606511 243 -65 105
PRD001 Pearl RC pre-collar 120 MGA94_51 445132 7606981 246 -62 105
PRD002 Pearl RC pre-collar 102 MGA94_51 445192 7606708 250 -65 85
A35RD001 A35 RC pre-collar 114 MGA94_51 448749 7606497 249 -60 275
A35RD002 A35 RC pre-collar 114 MGA94_51 449021 7606487 249 -60 290
A35RD003 A35 RC pre-collar 204 MGA94_51 449388 7606476 247 -65 305
PDD003 Pearl DD 488.6 MGA94_51 445529 7607016 246 -60 90
9 Holes 1,726.6
Figure 1. Ground EM, Drilling and targets
The approach to drilling was influenced by unexpectedly high water inflows in
some areas, limiting the achievable depth of the pre-collars. The diamond
rig became available late in the field season after completing other
priorities, resulting in only one hole (PDD003) completed at Scallywag.
Completion of the remainder of the RC pre-collars with diamond tails is
planned for 2023 as is follow up drilling based on the latest results.
Pearl Prospect
Following ground EM geophysical surveys, refined EM conductor targets were
generated at the Pearl prospect during the start of the field season. In
addition to drilling two RC pre-collars to test the plate targets defined
during 2021, an additional hole was diamond drilled from surface (being
PDD003) targeting a newly identified high priority EM conductor.
Drilling intersected fine-grained, silty sandstone sediments with zones of
variably intense calcareous sandstones. A zone of high water inflow and
extremely broken ground, thought to be a major fault or shear structure, was
intersected. No sample was able to be collected between 77m and 151m
downhole, as a mud-rotary method was required to advance the hole due to
challenging ground conditions.
Several small metallic chips with native copper and chalcopyrite were
collected from the rubbly core at around 76 - 77m, immediately before the area
of maximum broken ground and no sample returned. Initial portable X-ray
fluorescence (PXRF) analysis showed readings up to 17% copper, with highly
anomalous silver and tungsten. Any interpretation as to the origin and nature
of these metallic fragments would be highly speculative given the nature of
the sampling.
Subsequent laboratory assays revealed multiple instances of anomalous precious
and base metals (see Table 2 and Figure 2) including:
§ 1m @ 1,364g/t Ag and 0.36% Cu from 76m
§ 1m @ 0.76g/t Au with a 109ppm Bi from 251m
§ 1m @ 0.11% Cu from 418m
§ 1m @ 50.9ppm Bi from 65m
Figure 2. Drill Section (Orientation 7607000N) of PDD003 showing anomalous
intervals and associated core
Hole EOH (m) East Nth RL (m) Dip ((o)) Azi ((o)) From (m) To (m) Interval (m) Au (ppm) Bi (ppm) Cu (ppm) Ag (ppm) Te (ppm)
PDD003 488.7 445525 7607015 247 -60 90 65 66 1 <0.005 50.9 115 0.12 0.4
74 75 1 0.22 0.5 104 0.28 <0.2
75 76 1 0.062 20.2 95.3 0.15 0.3
76 77 1 0.02 4.6 3545 1364 <0.2
173 174 1 0.13 4 62 2.39 <0.2
207 208 1 0.11 4.7 280 0.5 <0.2
251 252 1 0.76 108.6 26 0.5 3.7
260 261 1 0.03 8.8 1744 0.49 0.3
418 419 1 0.07 22.6 1088 1.71 0.3
A35RD001 114 448749 7606497 249 -60 275 69 81 12* 0.48
incl. 70 72 2* 2.04 10.8 57 0.1 5.75
A35RD003 204 449388 7606476 247 -65 305 63 64 1 0.11 0.5 31 <0.05 <0.2
91 92 1 0.21 0.2 9 <0.05 <0.2
126 127 1 0.22 0.2 6 <0.05 <0.2
176 177 1 0.17 0.6 13 <0.05 <0.2
A34RD001 180 447805 7606511 243 -65 105 104 105 1 0.36 0.1 52 <0.05 <0.2
Table 2. Significant assays from Scallywag drilling
Interestingly, the high copper-silver assay interval comes from the final
recovered sample before drilling conditions forced mud-rotary drilling. The
poor drilling conditions are likely due to a significant structure being
intersected in the hole. From the assay results at the top of the structure it
is likely that this large structure is mineralised. Mineralised shear zones
are hosts to many ore bodies in Australia and globally. Greatland is intending
to re-drill at least part of the unsampled hole interval during its 2023
program. This will enable the Company to complete the geological picture and
more fully understand the highly encouraging metal values in the PXRF reading
and lab assays.
A35 Prospect
At the A35 Prospect, three RC pre-collars were drilled to target the deep
interpreted EM conductor plates. Assay results for A35RD001 returned a
significant gold intersection of 12m @ 0.48g/t Au from 69m, including 2m @
2.04g/t Au from 70m, in the weathered profile, with associated geochemical
pathfinder element anomalism (see Table 2). It must be noted that the hole
was also affected by water inflows and the majority of samples from the
mineralised zone from around 68m to 86m downhole were wet or moist and there
was potentially downhole smearing of the high gold grades. No sample was
able to be recovered from the 72 - 73m interval.
The results are highly encouraging as the gold and base metal anomalism may
represent a supergene enrichment of primary mineralisation at depth,
potentially around the untested EM plate target, and the water inflows may
indicate a significant geological structure, also promising for transporting
and focusing gold-copper mineralising fluids. Completion of the diamond core
tails and testing of the EM plate is a priority for the 2023 programme.
Ground EM Surveying
Detailed 1D and 2D re-processing of high priority zones within the aerial
electromagnetic datasets was completed as part of the 2022 work programme.
An additional Ground Electro-Magnetic (GEM) survey was completed over the
Pearl and A35 targets to better define the geometry and location of the
interpreted bedrock conductors, prior to drilling. Approximately 20-line
kilometres of fixed loop GEM data were collected, over the Pearl and A35
target areas (see Figure 1).
Figure 3. Plan View showing completed recent drill holes and UFF Soil Samples
on the 100% owned Scallywag licence; background image is 1vd RTP aeromagnetic
image
Soil Sampling
A total of 339 soil samples were collected over the western part of the
Scallywag licence (see Figure 3). Samples were collected mainly 100m apart,
up to 200m in places, on 300 - 800m spaced, east south east orientated,
available cleared tracks. This work was designed to test the efficacy of the
Ultra Fine Fraction analysis method which is considered useful in areas of
sandy, thicker cover. Results were low in tenor and inconclusive given the
small sample. Further surface sampling options are being evaluated given the
relatively modest cover known in the north western part of the tenement.
Next Steps
The 2023 exploration programme at Scallywag is designed to complete the
testing of the mineralisation at the Pearl and A35 prospects as well as the
previously defined GEM conductors at the Swan, A35 and A34 prospects with
diamond core tails to the RC pre-collars
Infill and extensional surface geochemistry in suitable areas which follows up
results from the 2022 Ultra Fine Fraction geochemistry programme will also be
completed.
Contact
For further information, please contact:
Greatland Gold plc
Shaun Day, Managing Director | info@greatlandgold.com
Nominated Advisor
SPARK Advisory Partners
Andrew Emmott / James Keeshan / Neil Baldwin
greatlandgold@sparkapl.com | +44 203 368 3550
Corporate Brokers
Berenberg | Matthew Armitt / Jennifer Lee | +44 203 368 3550
Canaccord Genuity | James Asensio / Patrick Dolaghan | +44 207 523
8000
SI Capital Limited | Nick Emerson / Sam Lomanto | +44 148 341 3500
Media Relations
UK - Gracechurch Group | Harry Chathli / Alexis Gore / Henry Gamble |
+44 204 582 3500
Australia - Fivemark Partners | Michael Vaughan | +61 422 602 720
About Greatland
Greatland is a mining development and exploration company focused primarily on
precious and base metals.
The Company's flagship asset is the world-class Havieron gold-copper project
in the Paterson region of Western Australia, discovered by Greatland and
presently under development in joint venture with ASX gold major, Newcrest
Mining Limited.
Havieron is located approximately 45km east of Newcrest's existing Telfer gold
mine. The box cut and decline the Havieron orebody commenced in February 2021.
Development continues to accelerate with record advancement achieved in the
December 2022 quarter. Havieron is intended to leverage the existing Telfer
infrastructure and processing plant. Access to Telfer will de-risk the
development, reduces capital expenditure and lowers the project's carbon
footprint.
Greatland has a proven track record of discovery and exploration success and
is pursuing the next generation of tier-one mineral deposits by applying
advanced exploration techniques in under-explored regions. Greatland has a
number of exploration projects across Western Australia and in parallel to the
development of Havieron is focused on becoming a multi-commodity miner of
significant scale.
Competent Persons Statement
Information in this announcement pertaining to Reporting of Exploration
Results has been reviewed and approved by Mr Damien Stephens, a Member of
the AusIMM, who has more than 30 years relevant industry experience. Mr
Stephens is a full-time employee of the Company and has a financial interest
in Greatland. Mr Stephens has sufficient experience relevant to the style of
mineralisation and type of deposit under consideration, and to the activity
which he is undertaking to qualify as a Competent Person as defined by the
2012 Edition of the Australasian Code for Reporting of Exploration Results,
Mineral Resources and Ore Reserves (the JORC Code) and under the AIM Rules -
Note for Mining and Oil and Gas Companies, which outline standards of
disclosure for mineral projects. Mr Stephens consents to the inclusion in
this announcement of the matters based on this information in the form and
context in which it appears. Mr Stephens confirms that the Company is not
aware of any new information or data that materially affects the information
included in the historical market announcements, and that the form and context
in which the information has been presented has not been materially modified.
JORC Code, 2012 Edition - Table 1
Section 1 Sampling Techniques and Data
Criteria JORC Code Explanation Commentary
Sampling techniques § Nature and quality of sampling (eg cut channels, random chips, or specific § An RC Drill rig was used to drill pre- collars for follow up tails with a
specialised industry standard measurement tools appropriate to the minerals multi-purpose RC-DD rig, or the multipurpose rig was used to drill mud rotary
under investigation) from surface to competent ground or through the cover sequence with a diamond
tail completed in competent ground/basement, to obtain representative samples
§ Include reference to measures taken to ensure sample representivity and the in an industry standard method
appropriate calibration of any measurement tools or systems used
§ Greatland RC samples consisted of rifle split representative 1m crushed
§ Aspects of the determination of mineralisation that are Material to the rock samples with average weights of less than 5kg
Public Report
§ Greatland diamond samples comprise half core material in generally 1m
§ In cases where 'industry standard' work has been done this would be lengths (NQ and HQ diameter core) or 0.5m lengths (in PQ core). All basement
relatively simple (eg 'reverse circulation drilling was used to obtain 1 m and the basal 20m of the Permian cover was sampled where intersected with
samples from which 3 kg was pulverised to produce a 30 g charge for fire Diamond or RC drilling. Core was cut using an automated core-cutter
assay'). In other cases more explanation may be required, such as where there
is coarse gold that has inherent sampling problems. Unusual commodities or § No regular sampling was completed for mud rotary drilling as the sample is
mineralisation types (eg submarine nodules) may warrant disclosure of detailed considered contaminated, however occasional PXRF readings are taken of the
information slurry for broad prospectivity mapping
§ Cutting of core adjacent to downhole orientation line or, where un-oriented
and possible, orthogonal to visible geological structures such as bedding,
foliation; ensures sample representivity
§ 50% of the core is retained for future check logging, re-sampling and QA/QC
Ground EM Data Collection:
In late September through early October 2021, Vortex Geophysics on behalf of
Greatland Gold undertook the collection of 4.2-line kilometres of Fixed Loop
electromagnetic data and 17.2-line km of Moving Loop ground electromagnetic
data. The traverses were undertaken over five target areas identified from the
2020 Heliborne EM survey
The data collection traverses were customised in orientations such as to avoid
crossing sand dunes. Initial survey planning was to collect the data using an
In-loop configuration, however strong "IP" effects recorded in the data
resulted in a change of the survey design to Slingram. Consequently, some
In-loop traverses were recollected using the Slingram configuration.
Additionally, a small, Fixed Loop survey was undertaken over anomaly A32
Moving Loop Data collection specifications are:
- 200m square transmitter loops
- Zonge GGT30 transmitter
- 3 component EMIT smart B-field (fluxgate) sensor
- EMIT SMARTem24 receiver
- Base frequency 0.5 Htz
- Duty cycle 50%
- Off time ramp 1 msec
- 39 Time channels 0.095msec to 371msec
- Station spacing: 100m and 50m
Fixed Loop Data collection specifications are:
- 200m by 300m transmitter loop (East by North)
- Zonge GGT30 transmitter
- 3 component EMIT smart B-field (fluxgate) sensor
- EMIT SMARTem24 receiver
- Base frequency 0.5 Htz
- Duty cycle 50%
- Off time ramp 1 msec
- 39 Time channels 0.095msec to 371msec
- Line spacing 50m
- Station spacing: 100m and 50m.
- Line Orientation: east-west, east of Tx Loop
Drilling techniques § Drill type (eg core, reverse circulation, open-hole hammer, rotary air § RC or mud-rotary pre-collars were followed by HQ then NQ diamond drill core
blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or to EOH
standard tube, depth of diamond tails, face-sampling bit or other type,
whether core is oriented and if so, by what method, etc) § The core is oriented using a Reflex mark III tool, nominally every core run
(around 6m)
Drill sample recovery § Method of recording and assessing core and chip sample recoveries and § Recovery is measured on core and reconciled against driller's depth blocks
results assessed in each core tray. Basement core recovery is typically around 100%
§ Measures taken to maximise sample recovery and ensure representative nature § No specific measures have been taken to maximise recovery, other than
of the samples employing skilled drillers
§ Whether a relationship exists between sample recovery and grade and whether § Half core cut at a consistent spacing from orientation lines assist in
sample bias may have occurred due to preferential loss/gain of fine/coarse sample representivity
material
§ No relationship between recovery and grade has been observed
§ To ensure sample quality from RC drilling, a face sampling drill bit was
used and an attempt was made to keep the sample dry to avoid downhole
smearing. Where this was not possible the sample was noted as wet in the
sample log. Where this is the case some potential for sample bias may exist
Logging § Whether core and chip samples have been geologically and geotechnically § The logging is of sufficient quality to support a Mineral Resource
logged to a level of detail to support appropriate Mineral Resource estimate, and comprises a combination of quantitative and qualitative
estimation, mining studies and metallurgical studies features. The entire hole is logged
§ Whether logging is qualitative or quantitative in nature. Core (or costean, § Geological logging recorded qualitative descriptions of lithology,
channel, etc) photography alteration, mineralisation, veining, and structure including orientation of
key geological features
§ The total length and percentage of the relevant intersections logged
§ Geotechnical measurements were recorded including Rock Quality Designation
(RQD), solid core recovery and qualitative rock strength measurements
§ Magnetic susceptibility measurements were recorded every metre using a KT20
machine
§ The bulk density of selected drill core intervals was determined at site on
whole core samples
§ Digital data was recorded on site and stored in an SQL database
§ All drill cores were photographed, prior to cutting and sampling the core
§ The ground EM survey data identified several potential bedrock
conductors. These have been modelled by an expert geophysical Consultant
Dave McInnes from Montana GIS in Maxwell, using the Leroi Algorithm, to
delineate their conductance and location
Sub-sampling techniques and sample preparation § If core, whether cut or sawn and whether quarter, half or all core taken. § Drill samples were freighted by road to the laboratory. All core is cut
with a core saw, and half core sampled
§ If non-core, whether riffled, tube sampled, rotary split, etc and whether
sampled wet or dry § The samples are assayed at Intertek (Perth, WA) Samples were dried at
105oC, and the bulk of the samples pulverised (using LM5) to produce a pulped
§ For all sample types, the nature, quality and appropriateness of the sample product. Oversize primary samples were crushed and a 3kg subsample then milled
preparation technique with the LM5 mill
§ Quality control procedures adopted for all sub-sampling stages to maximise § Sub sampling is reduced to minimum by using total sample pulverisation
representivity of samples prior to sub sampling wherever possible
§ Measures taken to ensure that the sampling is representative of the in situ § The sample sizes (2-3kg) are considered appropriate for the material being
material collected, including for instance results for field sampled
duplicate/second-half sampling
§ Whether sample sizes are appropriate to the grain size of the material
being sampled
Quality of assay data and laboratory tests § The nature, quality and appropriateness of the assaying and laboratory § The samples were assayed for Au by a 50gm fire assay and for a
procedures used and whether the technique is considered partial or total multi-element scan using 4 acid digest and MS and OES finish for pathfinder
and lithogeochemical elements. The assays are considered total rather than
§ For geophysical tools, spectrometers, handheld XRF instruments, etc, the partial
parameters used in determining the analysis including instrument make and
model, reading times, calibrations factors applied and their derivation, etc § Greatland QA/QC procedures include using reference samples and field
duplicate samples every 25 samples, in addition to the laboratories in- house
§ Nature of quality control procedures adopted (eg standards, blanks, QA/QC methods
duplicates, external laboratory checks) and whether acceptable levels of
accuracy (ie lack of bias) and precision have been established. § Analysis of the quality control sample assay results indicates that an
acceptable level of accuracy and precision has been achieved and the database
contains no analytical data that has been numerically manipulated
§ Historical drilling- no sampling reported
Verification of sampling and assaying § The verification of significant intersections by either independent or § No twinned holes have been completed
alternative company personnel.
§ All data entry procedures, including original logging, sample depth
§ The use of twinned holes selection for sampling and recording of sample numbers are recorded digitally
in an electronic database
§ Documentation of primary data, data entry procedures, data verification,
data storage (physical and electronic) protocols § There are no adjustments to assay data, other than below detection samples
are reported at negative one half the detection limit
§ Discuss any adjustment to assay data.
Location of data points § Accuracy and quality of surveys used to locate drill holes (collar and § Drill collar locations were surveyed using hand held GPS. RL's were
down-hole surveys), trenches, mine workings and other locations used in collected with the same GPS
Mineral Resource estimation.
§ Drill rig alignment was attained using a hand held compass
§ Specification of the grid system used.
§ Downhole survey was collected every 30m in diamond drill core segments of
§ Quality and adequacy of topographic control the drill hole using a single shot Axis Mining Champ Gyro
§ The topography is generally low relief to flat, elevation within the dune
corridors in ranges between 250-265m AHD steepening to the southeast
§ All collar coordinates are provided in the Geocentric Datum of Australian
(GDA94 Zone 51). All relative depth information is reported in Australian
Height Datum (AHD)
Data spacing and distribution § Data spacing for reporting of Exploration Results § Drill holes are individual exploration holes targeting specific targets,
and are not part of a grid pattern
§ Whether the data spacing and distribution is sufficient to establish the
degree of geological and grade continuity appropriate for the Mineral Resource § Not applicable in early stage exploration
and Ore Reserve estimation procedure(s) and classifications applied
§ No sample compositing has been applied
§ Whether sample compositing has been applied
Orientation of data in relation to geological structure § Whether the orientation of sampling achieves unbiased sampling of possible § Drilling is oriented at various angles to folded layering, and to
structures and the extent to which this is known, considering the deposit type identified sulphide mineralised structures. The relationship to possible
mineralised structures is unknown at this stage
§ If the relationship between the drilling orientation and the orientation of
key mineralised structures is considered to have introduced a sampling bias,
this should be assessed and reported if material
Sample security § The measures taken to ensure sample security § The security of samples is controlled by tracking samples from drill rig to
database
§ Entire core samples are delivered by company personnel to a freight company
in Port Hedland for delivery by road freight to the assay lab in Perth, where
the core is cut and sampled
Audits or reviews § The results of any audits or reviews of sampling techniques and data § No audits or reviews have been completed
Section 2 Reporting of Exploration Results
Criteria JORC Code explanation Commentary
Mineral tenement and land tenure status § Type, reference name/number, location and ownership including agreements or § The Scallywag tenement E45/4701 is 100% owned by Greatland Pty Ltd
material issues with third parties such as joint ventures, partnerships,
overriding royalties, native title interests, historical sites, wilderness or § The tenement is subject to a Land Access Agreement with
national park and environmental settings Jamukurnu-Yapalikurnu Aboriginal Corporation
§ The security of the tenure held at the time of reporting along with any
known impediments to obtaining a licence to operate in the area
Exploration done by other parties § Acknowledgment and appraisal of exploration by other parties § Historical work comprised shallow drilling in the north end of the
Scallywag tenement (72 generally aircore holes, averaging 47.3m deep, 4 RAB
holes (average 68m) and 9 RC holes (average 96.3m) by companies including
Newcrest and Normandy Exploration Limited.
§ Historical reports (WAMEX "A" numbers) are referenced in previous RNS
announcements dated 24 August 2021 and 16 April 2021
Geology § Deposit type, geological setting and style of mineralisation § Exploration is for intrusion related and orogenic, structurally controlled
Au-Cu deposits similar to Telfer, Havieron and Winu, all located in
Neo-Proterozoic Yeneena Group sediments of the Paterson Province, Western
Australia
Drill hole Information § A summary of all information material to the understanding of the § Greatland drill hole collar details are listed in - Table 1 and anomalous
exploration results including a tabulation of the following information for results in Table 2
all Material drill holes:
§ easting and northing of the drill hole collar
§ elevation or RL (Reduced Level - elevation above sea level in metres) of
the drill hole collar
§ dip and azimuth of the hole
§ down hole length and interception depth
§ hole length
§ If the exclusion of this information is justified on the basis that the
information is not Material and this exclusion does not detract from the
understanding of the report, the Competent Person should clearly explain why
this is the case
Data aggregation methods § In reporting Exploration Results, weighting averaging techniques, maximum § No economically significant results have been reported, and no data
and/or minimum grade truncations (eg cutting of high grades) and cut-off aggregation methods have been applied
grades are usually Material and should be stated
§ Where anomalous results are quoted (Table 2) the samples have been selected
§ Where aggregate intercepts incorporate short lengths of high grade results as follows:
and longer lengths of low grade results, the procedure used for such
aggregation should be stated and some typical examples of such aggregations - Au >0.1ppm; or
should be shown in detail
- Ag >2ppm; or
§ The assumptions used for any reporting of metal equivalent values should be
clearly stated - Cu >500ppm; or
- Bi >5ppm; or
- Pb >200ppm; or
- Zn >1000ppm
Relationship between mineralis-ation widths and intercept lengths § These relationships are particularly important in the reporting of § No economically significant results are reported, and there is no known
Exploration Results relationship between reported widths and the geometry of any mineralisation
§ If the geometry of the mineralisation with respect to the drill hole angle
is known, its nature should be reported
§ If it is not known and only the down hole lengths are reported, there
should be a clear statement to this effect (eg 'down hole length, true width
not known')
Diagrams § Appropriate maps and sections (with scales) and tabulations of intercepts § Maps and a Section are provided in Figures 1-3. No significant discovery is
should be included for any significant discovery being reported These should reported
include, but not be limited to a plan view of drill hole collar locations and
appropriate sectional views
Balanced reporting § Where comprehensive reporting of all Exploration Results is not § The reporting is considered balanced
practicable, representative reporting of both low and high grades and/or
widths should be practiced to avoid misleading reporting of Exploration
Results
Other substantive exploration data § Other exploration data, if meaningful and material, should be reported § No other substantive exploration data other than that provided in the
including (but not limited to): geological observations; geophysical survey figures
results; geochemical survey results; bulk samples - size and method of
treatment; metallurgical test results; bulk density, groundwater, geotechnical
and rock characteristics; potential deleterious or contaminating substances
Further work § The nature and scale of planned further work (eg tests for lateral § Further drilling of the ground EM targets including the Swan target is
extensions or depth extensions or large-scale step-out drilling) planned for 2022, along with soil sampling, geophysical follow up and possible
ground EM
§ Diagrams clearly highlighting the areas of possible extensions, including
the main geological interpretations and future drilling areas, provided this
information is not commercially sensitive
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