RCS - Greatland Gold PLC - Paterson Exploration Update
07/11/2024 07:15
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RNS Number : 3380L Greatland Gold PLC 07 November 2024
Greatland Gold plc (AIM: GGP)
E: info@greatlandgold.com
W: https://greatlandgold.com
: twitter.com/greatlandgold
NEWS RELEASE | 7 November 2024
RNS Reach announcement
Paterson Exploration Update
Greatland Gold plc (AIM:GGP) (Greatland or the Company) is pleased to provide
an update on recent exploration activities in the Paterson region.
Highlights
§ Drilling at Chilly assay results: Pathfinder mineralisation intersected
at Chilly prospect with a peak of 37m @ 0.21 g/t Au and 0.13% Cu from 136m,
including 1m @ 6.1 g/t Au and 0.24% Cu from 137m in first pass reconnaissance
drilling.
§ Drilling at Teague intersected veining, sulphides and alteration. Assay
results pending.
§ Drilling commenced at London and Bootstrap prospects
§ Strong magnetic and gravity targets identified at Atlantis for future
drilling.
§ Interpretation of surface sampling enables marker unit identification in
prospective lithology under cover regionally.
Greatland Managing Director, Shaun Day, commented:
"Completion of our transformational acquisition of Havieron and Telfer is
targeted for this December quarter, and ownership of the Telfer infrastructure
greatly enhances the value of exploration success in our Paterson portfolio.
Greatland will emerge from the acquisition with interests in up to
approximately 4,500 square kilometres of tenure in the Paterson, providing
significant option value within our exploration portfolio Pleasing recent
exploration progress includes highly encouraging results from drilling at our
Chilly and Teague prospects, identification of new drill targets at Atlantis
from magnetic and gravity surveying and modelling, and soil sampling results
which enhance our ability to map geology undercover."
Figure 1: Greatland and Newmont Paterson granted tenure and prospects
Notes:
1. Pursuant to the acquisition of Havieron, Telfer and related assets
announced by Greatland on 10 September 2024 (Acquisition) and targeted for
completion in the December 2024 quarter, Greatland will consolidate 100%
ownership of the Juri project.
2. Pursuant to the Acquisition, Greatland will consolidate 100%
ownership of Havieron.
3. Pursuant to the Acquisition, subject to receipt of consent from
Antipa Minerals Limited, Greatland will acquire a right to earn up to 75% in
the Wilki project.
4. Pursuant to the Acquisition, Greatland will acquire 100% ownership of
the Telfer exploration portfolio.
Strickland E45/4807 and Telfer Domain E45/4834 - Paterson South joint venture
Greatland is currently earning up to a 75% joint venture interest with Rio
Tinto Exploration (RTX) in over 1,500km(2) of tenure (the Paterson South
project, shown in Figure 2), managed by Greatland.
The Chilly prospect sits on the northern limb of a regional doubly plunging
anticline and is interpreted to be close to the contact between the Puntapunta
Formation and the Telfer Member (Figure 2). The southeastern hinge of the
anticline appears to be truncated by a Proterozoic granite emplaced on a
crustal scale northeast trending linear. The Telfer deposit sits in the same
lithological position in a doubly plunging anticline, with a posited but not
yet identified granitic source for the mineralisation.
A total of five RC holes (CHY001RC - CHY005RC) for 990m (Table 1) were
completed, testing the Telfer stratigraphic position on a magnetic high
(Figure 2) at Chilly. Drilling occurred on three lines approximately 750m
apart, aligned at right angles to and testing complexities in the magnetic
linear, with holes spaced 100 - 200m apart.
Peak assay results of 37m @ 0.21 g/t Au and 0.13% Cu from 136m, including 1m @
6.1 g/t Au and 0.24% Cu from 137m, were returned from RC drilling in hole
CHYR005RC (Figure 1) located in the eastern part of the Strickland tenement
(E45/4807). Three of the other four holes returned intercepts of 1m or more
at greater than 0.2% Cu including 2m @ 0.44% Cu in hole CHY003RC on the
central line (Figure 4) and 1m @ 0.77% from 200m in hole CHY002RC the northern
line (Figure 3), both of which occur in fresh dolerite.
In detail, the intersected mineralisation in hole CHY005RC occurs in sediment
hosted veining near the contact with an interpreted vertical dolerite sill,
within weathered bedrock (Figure 5). It is the southeastern most hole of the
program with significant structural complexity evident in magnetics along
strike to the southeast (Figure 2). The gold mineralisation is open in this
direction with no historic drilling known for over 3km. It is not certain this
round of drilling has tested the same stratigraphic position on the two other
drill lines to the north west.
This drilling has confirmed pathfinder mineralisation at the Chilly prospect
with further work to understand the potential underway.
As a result of recent discussions with Traditional Owners, an exclusion area
has been extended over an area including the Paterson Dome West prospect, and
accordingly other prospects will be prioritised for on-ground activities.
Figure 2: Chilly prospect location within the Strickland tenement with section
lines in red on reduced to pole first vertical derivative aeromagnetics and
historical drilling. The doubly plunging Paterson Dome anticline axis is shown
with a yellow arrow
Table 1: Chilly RC drilling collars and significant intercepts
Hole_ID Hole Type Collar east Collar North Collar Rl Collar Azim Collar Dip Hole Depth From To Width Au ppm Cu %
CHY001RC RC 405897 7633240 248 46 -62 180 106 107 1 0.01 0.22
152 153 1 0.09 0.12
159 161 2 0.05 0.29
CHY002RC RC 406085 7633412 247 45 -60 204 200 201 1 0.05 0.77
CHY003RC RC 406652 7632981 246 48 -61 168 83 84 1 0.02 0.12
100 102 2 0.09 0.44
CHY004RC RC 407067 7632303 246 49 -61 234 no significant intercepts
CHY005RC RC 407161 7632371 246 50 -60 204 136 173 37 0.21 0.13
incl. 137 138 1 6.12 0.24
Note: intercepts calculated based on interval having AU ppm >= 0.1g/t or
Cu% >= 0.1%, with maximum consecutive internal waste of 4m.
Figure 3: Chilly RC drilling oblique section 1.
Figure 4: Chilly oblique section 2
Figure 5: Chilly oblique section 3
Budjidowns E45/4815 - Paterson South JV
The Atlantis prospect at Budjidowns (Figure 1) is a focus for Greatland in
FY25. The area is characterised by bullseye magnetic features within the
Proterozoic basement.
There are many different sources of magnetic and gravity anomalies, some of
which will be mineralisation or prospective for mineralisation while most will
not. For example, the Havieron ore body has a magnetic anomaly in part due to
the existence of pyrrhotite in the ore, however a similar magnetic anomaly
could also be created by a mafic intrusive plug. Both a mafic intrusive and
the Havieron orebody are denser than the surrounding sedimentary rocks and
return a positive gravity anomaly. The two anomalies cannot be separated by
either gravity or magnetic signatures alone and there are a lot of magnetic
bodies in the Paterson making drill testing each one unfeasibly expensive.
The Hanneson (Jim Hanneson, Adelaide Mining Geophysics) modeling method that
helped in the discovery of Havieron and Ramses at depth under cover takes
advantage of the fact that the gravity and magnetic signatures of mafic rocks
are considered to occur within a range of values. These ranges overlap with
the mineralised signatures for gravity and magnetics for the targeted
orebodies, however when both are considered at the same time for a conceptual
source, the mafic sources can be rejected if the anomaly sits outside the
standard ranges. For example, a proposed source with the density of a mafic
intrusive and an assigned volume and shape to give the correct gravity anomaly
measured at surface, would necessarily have a certain magnetic anomaly at
surface. If the actual recorded magnetic anomaly is higher than that for a
normal mafic intrusive, the likelihood of the source being a mineralised body
with significant pyrrhotite is much higher and would make the target more
prospective. A similar method can discriminate magnetic felsic intrusive from
mineralisation.
To enable this modelling at Atlantis, a ground gravity survey was completed in
July 2024 (Figure 6). Processing the data using this method has identified
four targets which are considered prospective for mineralisation at Atlantis,
from more than 90 modelled bodies. Of these, Target 19 is considered most
prospective for a mineralised orebody and sits at a depth of 500m below
surface. A drill program is being planned which will be completed in the first
half of 2025.
Figure 6: Atlantis ground gravity survey extents in the north of the
Budjidowns tenement with Hanneson modelled targets. Oblique view looking
north.
Havieron area exploration
Drilling is underway across several projects within the vicinity of the
Havieron project. The drilling (Figure 7) targets geophysical, structural and
geological targets resulting from a regional review.
Figure 7: Havieron region drilling on Reduced to pole aeromagnetics.
Notes:
1. Pursuant to the Acquisition, Greatland will consolidate 100%
ownership of the Juri project.
2. Pursuant to the Acquisition, Greatland will consolidate 100%
ownership of Havieron.
3. Pursuant to the Acquisition, subject to receipt of consent from
Antipa Minerals Limited, Greatland will acquire a right to earn up to 75% in
the Wilki project.
4. Pursuant to the Acquisition, Greatland will acquire 100% ownership
of the Telfer exploration portfolio.
Table 2: Havieron region Greatland Drilling
Hole_ID Hole Type Depth East North RL Azim Dip Lease Project Prospect Status
PMT001RCD RCD 486.7 458111 7600663 246 292 -67 E45/4701 Scallywag MT SCW Complete
PMT002RCD RCD 596.2 458201 7600704 246 325 -66 E45/4701 Scallywag MT SCW Complete
SKY001RCD RC 204 457688 7596437 241 180 -80 E45/5351 Paterson Bootstrap Pre-Collar
SKY002RCD RC 150 458790 7596148 239 180 -80 E45/5351 Paterson Bootstrap Pre-Collar
TRS001RCD RCD 303.4 451836 7588819 247 321 -70 E 45/5532 Paterson South Teague Complete
TRS002RCD RCD 406.7 451537 7588276 270 289 -70 E 45/5532 Paterson South Teague Complete
TRS003RCD DD 148.2 451537 7588276 270 290 -70 E 45/5532 Paterson South Teague Abandoned
Skylar E45/5351 and Triangle E45/5352 - Paterson South joint venture
Diamond drill (DD) testing of geological, magnetic and structural targets at
the Bootstrap and Teague prospects (Figure 2) is underway.
Drilling at Teague targeting across an interpreted fold structure has been
completed with three diamond tailed RC holes for 858m (Figure 7). Hole
TRS002RCD is a redrill of TRS003RCD which collapsed before getting to depth.
Both holes TRS001RCD and TRS002RCD intersected calcareous sediments
interpreted as Puntapunta formation, while hole TRS002RCD showed strong
veining, structural disruption alteration and trace sulphides. These holes
have been sampled and sent for assays.
Figure 8:DH Core intercepts from TRS002RCD; (A) Qv with pyrite at 178m, (B)
wrench veining 186.86, (C) complex vein interactions 215.13m, (D) arsenopyrite
vein 283.91m, (E) second vein interaction example 359.7m.
At the Bootstrap prospect, pre-collars through the Permian have been completed
for two holes -SKY001RCD and SKY002RCD (Figure 7), with a further two holes
planned and in progress. This drilling tests interpreted magnetic upgrading
alteration and faulted disruption on the margin of an anticline as well as the
anticlinal hinge at a position interpreted to be the Puntapunta - Telfer
Member contact where it is intersected by a north-south striking dolerite
feature.
Scallywag E45/4701 and Black Hills North (E45/6134)
At the London prospect (Figure 2), follow up diamond drill testing of the
combined magnetotelluric (MT) conductive anomaly and demagnetised zone in the
core of a regional synform with two holes completed for 1,082m. MT surveys are
considered particularly effective in areas of deep conductive cover; a similar
survey conducted in 2022 of the Havieron mining lease successfully detected
the Havieron orebody.
Holes PMT001RCD and PMT002RCD intercepted bedrock and are currently being
logged.
Regional soils
Ultra Fine Fraction (UFF) analysis across the finished grids at Wilki Lakes,
Scallywag, Black Hills North and Pascalle (Figure 9) show no major significant
mineralisation.
Interpretation of the results has found that the Puntapunta formation can be
defined from the multielement data, which will significantly improve the
geological interpretation and target generation across the region.
The Scallywag grid has the highest values of high temperature, mobile elements
such as arsenic and molybdenum, possibly indicating a higher level of fluid
mobilisation relative to the less structurally complex areas.
Figure 9: Surface sampling completed in 2024 to date in the Havieron region
Notes:
1. Pursuant to the Acquisition, Greatland will consolidate 100%
ownership of the Juri project.
2. Pursuant to the Acquisition, Greatland will consolidate 100%
ownership of Havieron.
3. Pursuant to the Acquisition, subject to receipt of consent from
Antipa Minerals Limited, Greatland will acquire a right to earn up to 75% in
the Wilki project.
4. Pursuant to the Acquisition, Greatland will acquire 100% ownership of
the Telfer exploration portfolio.
Contact
For further information, please contact:
Greatland Gold plc
Shaun Day, Managing Director | Rowan Krasnoff, Head of Business
Development
info@greatlandgold.com
Nominated Advisor
SPARK Advisory Partners
Andrew Emmott / James Keeshan / Neil Baldwin | +44 203 368 3550
Corporate Brokers
Canaccord Genuity | James Asensio / George Grainger | +44 207 523 8000
Berenberg | Matthew Armitt / Jennifer Lee | +44 203 368 3550
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
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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 Province of Western Australia, discovered by Greatland and
presently under development in joint venture with world gold major, Newmont
Corporation.
Havieron is located approximately 45km east of the Telfer gold mine. The box
cut and decline to the Havieron orebody commenced in February 2021. Total
development exceeds 3,060m including over 2,110m of advance in the main access
decline (as at 30 June 2024). Havieron is intended to leverage the existing
Telfer infrastructure and processing plant, which would de-risk the
development and reduces capital expenditure.
On 10 September 2024, Greatland announced that certain of its wholly owned
subsidiaries had entered into a binding agreement with certain Newmont
Corporation subsidiaries to acquire, subject to certain conditions being
satisfied, a 70% ownership interest in the Havieron gold-copper project
(consolidating Greatland's ownership of Havieron to 100%), 100% ownership of
the Telfer gold-copper mine, and other related interests in assets in the
Paterson region. Completion of the acquisition is subject to the
satisfaction of certain conditions precedent and is targeted to occur during
Q4 2024.
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.
JORC 2012 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 complete drill holes at Chilly prospect and
specialised industry standard measurement tools appropriate to the minerals pre- collars on the Scallywag and Skylar tenements for follow up tails with DD
under investigation) rig. The diamond core rig was also used to drill mud rotary from surface to
competent ground or through the cover sequence, before completing the hole
§ Include reference to measures taken to ensure sample representivity and the with a diamond core tail in competent ground/basement, to obtain
appropriate calibration of any measurement tools or systems used representative samples in an industry standard method.
§ Aspects of the determination of mineralisation that are Material to the § Greatland RC samples consisted of cone split representative 1m crushed rock
Public Report samples with average weights of less than 5kg.
§ In cases where 'industry standard' work has been done this would be § Greatland diamond core samples comprise half core material in generally 1m
relatively simple (eg 'reverse circulation drilling was used to obtain 1 m lengths (NQ and HQ diameter core). All Proterozoic basement and generally the
samples from which 3 kg was pulverised to produce a 30 g charge for fire basal 10-20m of the Permian cover was sampled where intersected with Diamond
assay'). In other cases more explanation may be required, such as where there or RC drilling. Core was cut using an automated core-cutter.
is coarse gold that has inherent sampling problems. Unusual commodities or
mineralisation types (eg submarine nodules) may warrant disclosure of detailed § No regular sampling was completed for mud rotary drilling as the sample is
information considered contaminated.
§ 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 Gravity Data Collection:
In late June through early July 2024, Daishsat on behalf of Greatland Gold
undertook the collection of 1786 individual station gravity measurements on a
predominantly 100x100m east - west orientation going out to 200 x200m spacing
on the margins of the survey. The data collection traverses were customised to
avoid crossing sand dunes. The survey covered the northern 5.2km of the
Budjidowns tenement inclusive of the Atlantis prospect.
Scintrex CG-5 Autograv gravity meters were used for gravity data acquisition
and base station control. Leica GX1230 GNSS receivers were used for gravity
station positional acquisition. All gravity and GNSS data were acquired using
Daishsat UTV methods, with 2 crews operating concurrently onsite.
One new GNSS base station, numbered 1600, was established and utilised for
reduction and drift control for the survey.
Drilling techniques § Drill type (eg core, reverse circulation, open-hole hammer, rotary air § RC drilling was completed at Chilly.
blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-sampling bit or other type, § For Havieron region drilling RC or mud-rotary pre-collars were followed by
whether core is oriented and if so, by what method, etc) PQ and/orHQ then NQ diamond drill core to EOH
§ 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 estimate
logged to a level of detail to support appropriate Mineral Resource and comprises a combination of quantitative and qualitative features. The
estimation, mining studies and metallurgical studies entire hole is logged except any mud rotary pre-collars where this is not
feasible.
§ Whether logging is qualitative or quantitative in nature. Core (or costean,
channel, etc) photography § Geological logging recorded qualitative descriptions of lithology,
alteration, mineralisation, veining, and structure including orientation of
§ The total length and percentage of the relevant intersections logged key geological features where oriented core was available.
§ Geotechnical measurements were recorded in core 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 gravity survey data identified several gravity anomalies.
These have been modelled by an expert geophysical Consultant from NewExCo, and
separately by Jim Hanneson from Adelaide Mining Geophysics Pty Ltd.
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 § RC samples are split with a cone splitter attached to the cyclone and
effort made to ensure samples are dry. Whether a specific sample is wet or dry
§ For all sample types, the nature, quality and appropriateness of the sample is recorded in the database.
preparation technique
§ The samples are assayed at Intertek (Perth, WA). Samples were dried at
§ Quality control procedures adopted for all sub-sampling stages to maximise 105(o)C, and the bulk of the samples pulverised (using LM5) to produce a
representivity of samples pulped product. Oversize primary samples were crushed and a 3kg subsample then
milled with the LM5 mill
§ Measures taken to ensure that the sampling is representative of the in situ
material collected, including for instance results for field § Sub sampling is reduced to minimum by using total sample pulverisation
duplicate/second-half sampling prior to sub sampling wherever possible.
§ Whether sample sizes are appropriate to the grain size of the material § The sample sizes (2-3kg) are considered appropriate for the material being
being sampled 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 handheld GPS. RL's were
down-hole surveys), trenches, mine workings and other locations used in collected with the same GPS and verified against regional SRTM datasets.
Mineral Resource estimation.
§ Drill rig alignment was attained primarily using a digital reflex TN-14 Azi
§ Specification of the grid system used. Aligner, of if not available, compass and tape method.
§ Quality and adequacy of topographic control § Downhole survey was collected generally every 30m down the drill hole using
a single shot Axis Mining Champ Gyro or Relfex North Seeking Gyro tool.
§ 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
(GDA2020 Zone 51). All relative depth information is reported in Australian
Height Datum (AHD)
Data spacing and distribution § Data spacing for reporting of Exploration Results § RC drilling at Chilly is on 3 lines separated by approximately 750m and
oriented at approximately 050 degrees to be at right angles to the observed
§ Whether the data spacing and distribution is sufficient to establish the geological strike. Hole spacing on lines was 100-200m with 2 holes on the
degree of geological and grade continuity appropriate for the Mineral Resource northern line, 1 hole on the middle line and 2 holes on southern line.
and Ore Reserve estimation procedure(s) and classifications applied
§ Drill holes reported for the Havieron region are individual exploration
§ Whether sample compositing has been applied holes targeting specific targets, and are not part of a grid pattern.
§ Not applicable in early-stage exploration
§ No sample compositing has been applied.
Orientation of data in relation to geological structure § Whether the orientation of sampling achieves unbiased sampling of possible § At Chilly, RC drilling is orientated nominally at 050(o) true which is at
structures and the extent to which this is known, considering the deposit type right angles to the observed geological trend. Holes were angled at -60(o) to
provide a high angle to the expected vertical stratigraphy.
§ If the relationship between the drilling orientation and the orientation of
key mineralised structures is considered to have introduced a sampling bias, § The Havieron region drilling is oriented at various angles to folded
this should be assessed and reported if material layering, and to identified sulphide mineralised structures. The relationship
to possible mineralised structures is unknown at this stage.
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 tenements are subject to Land Access Agreements with Jamukurnu-Yapalikurnu
material issues with third parties such as joint ventures, partnerships, (JYAC) Aboriginal Corporation on behalf of the Martu People.
overriding royalties, native title interests, historical sites, wilderness or
national park and environmental settings The Chilly RC drilling;
§ The security of the tenure held at the time of reporting along with any § Occurred on tenement E45/4807 Strickland which is 100% owned by Rio Tinto
known impediments to obtaining a licence to operate in the area Exploration Pty and is the subject of an agreement where Greatland is farming
in (the Paterson South farm-in), but has not yet earned an interest.
§ Sits within the Martu category IV Indigenous Protection Area. Discussions
with JYAC and the Martu state that there is allowance made for mining within
Cat IV IPAs.
The Gravity survey at Atlantis occurs on tenement E45/4815 and is also subject
to the Paterson South farm-in.
Diamond drilling on E45/5351 Skylar and E45/5532 Triangle South at the
Bootstrap and Teague prospects respectively are subject to the Paterson South
farm-in.
London diamond drilling occurs on E45/4701 - Scallywag which is 100% owned by
Greatland Exploration Pty Ltd, a subsidiary of Greatland Holdings Group Pty
Ltd.
All tenements are considered to be in good standing.
Exploration done by other parties § Acknowledgment and appraisal of exploration by other parties Chilly prospect - (historical drilling shown on Figure 2); including;
§ 2 x 1km nominally spaced RAB and AC drilling (ANK and AND prefix
respectively) completed by BHP minerals from 1994. DEMIRS Annual report number
(A)41180 and A46969
§ Regional drill traverse (GAB prefix) with 200m spaced RAB completed by
Newmont Australia in 1991. A32497
§ Regional drill traverse (YRG prefix) with 100m spaced AC completed by
Normandy Exploration in 1999. A59473
§ Regional drill traverse with 100m spaced AC (GPW) traverses across the
magnetic target completed by Gindalbie gold (annual rept number) A61274
Atlantis Prospect - pre-existing shallow drilling - completed prior to the
advent of modern low detection limit multielement assays and with modelled
depth to bedrock of +500m suggest this was ineffective.
§ Single traverse with 7, 400m spaced RAB and 4 individual holes targeting
(HWN prefix) magnetic highs completed in 1989 by Newmont Australia. A29568
Teague Prospect - Minimal previous work
§ 2, ~ 4km spaced shallow RC holes (DWRC prefix) displayed in Figure 7 and
completed by Reward Minerals in 2014. A106582
Bootstrap Prospect - has had regional spaced drilling (Figure 7) which did not
target the areas currently being tested.
§ Widely spaced - 2-8km reconnaissance RAB (ANK prefix) drilled by BHP
Minerals in in 1994 and unlikely to have been effective or hit bedrock.
§ Widely spaced ~5km spaced RC drilled by Reward Minerals in 2014. Did not
test the targeted anomalies. A110781
London Prospect - effective diamond drilling within 600m (Figure 7) completed
by Greatland in 2020 was targeting a magnetic anomaly. The current drilling is
targeting an offset conductor from a magnetotelluric survey.
Regional 1km spaced AC drilling completed along existing tracks (TEA prefix)
is unlikely to have been effective A84215
Scallywag E45/4701:
§ 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 for Chilly RC
exploration results including a tabulation of the following information for and Table 2 for Havieron Region drilling.
all Material drill holes:
§ Anomalous results for Chilly RC are also recorded in Table 1
§ easting and northing of the drill hole collar
§ Assay results are not yet available for Havieron vicinity drilling.
§ 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 § Anomalous results for Chilly RC are recorded in Table 1. The anomalous
and/or minimum grade truncations (eg cutting of high grades) and cut-off sample intervals been selected as follows:
grades are usually Material and should be stated
- Au >=0.1ppm; or
§ Where aggregate intercepts incorporate short lengths of high grade results
and longer lengths of low grade results, the procedure used for such - Cu >=1000ppm; average grade,
aggregation should be stated and some typical examples of such aggregations
should be shown in detail with a maximum consecutive internal dilution of 4m.
§ The assumptions used for any reporting of metal equivalent values should be
clearly stated
Relationship between mineralis-ation widths and intercept lengths § These relationships are particularly important in the reporting of § All Chilly RC intercepts reported are downhole and not true width. The
Exploration Results intersected geology is interpreted to be subvertical with drilling angled at
-60(o) to provide a high angle to expected bedding parallel mineralisation.
§ If the geometry of the mineralisation with respect to the drill hole angle The nature of RC drilling is such that the true orientation of mineralisation
is known, its nature should be reported intersected is currently unknown.
§ 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 1-7. 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 Chilly prospect has been proposed internally but
extensions or depth extensions or large-scale step-out drilling) has not advanced to a drill program, however the south eastern 3km extension
of the magnetic linear in Figure 2 is considered prospective.
§ Diagrams clearly highlighting the areas of possible extensions, including
the main geological interpretations and future drilling areas, provided this § Four targets for follow up drilling are highlighted at Atlantis in Figure
information is not commercially sensitive 6.
§ Further work at the Teague, London and Bootstrap prospects will be
considered following the return and review of assays for those prospects.
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