Meleya Update - Drilling In Progress At Clover Target
Released
Released
Announcement PDF
ASX : TEM
2022-10-20 | Drilling Progress At Clover Target
TEM | Meleya Update - Drilling In Progress At Clover Target
Key Points
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Drilling continuing at the Meleya Project
Diamond hole WARDH75 completed
Considerable alteration and minor sulphides intersected
RC drilling commenced at Clover
News Item
Tempest Minerals Ltd (TEM) is pleased to update the market on the progression of continued drilling at
the Meleya Project. Drilling is currently focussed on the Clover target. A diamond hole (637.1m)
WARDH75 has now been completed with thick sequences of highly altered mafic geology and minor
sulphides observed throughout the hole.
A parallel RC program of up to 4,000m has commenced testing the multi kilometre thickness and
structures present within a possibly demagnetised zone.
This program is anticipated to then transition into a regional aircore and RC program of up to 13,000m
designed to penetrate zones of cover and laterite weathering across the newly identified belt.
Meleya Project
Background
The Meleya Project is part of
Tempest Minerals’ flagship Yalgoo
Portfolio that extends over a
footprint of more than 900km2.
Earlier in 2022 drilled the first two
1
holes in conjunction with the
state government co-funded (EIS) 2
program in order to establish
stratigraphic controls at the Orion
Target. Both drill holes, totaling
some
1,730.5m,
encountered
multiple zones of strong alteration
and visual mineralisation 3.
This discovery cemented (what
Tempest have viewed for some
time ) the Meleya Project to be one
of the most exciting greenfield
projects in the industry and
highlight potential for a major discovery across multiple geological settings within Tempest’s projects.
TEM recently announced the first hole drilled at the Master prospect 4 where alteration and mineralisation was
also encountered 5. TEM has completed the first hole at the Clover target (WARDH75 and the
commencement of a multihole ~4,000m RC program targeting the same geological zone.
Tempest Minerals Ltd │ ACN 612 008 358
Phone: +61 8 9200 0435
Address: Level 2, Suite 9, 389 Oxford Street, Mt Hawthorn, WA 6016
Page 1 | 12
ASX : TEM
2022-10-20 | Drilling Progress At Clover Target
Clover Target
Geology
The Clover Target is a magnetic low stratigraphic sequence 2.5km to the south east of the Orion target. TEM
consider this to likely represent a previously unrecognised geological sequence within the mineralised Meleya
Belt or potentially a strongly altered and ‘demagnetised’ zone such is typical of greenstone hosted
hydrothermal gold mineralisation in Western Australia.
WARDH75
WARDH75 was drilled to 637.1m and
was designed to intersect the western
edge of the above-mentioned multi-km
low magnetism zone.
The hole encountered a thick (~68m)
laterite zone of weathered intrusives.
Underlying the regolith profile was
extensive highly sheared intermediate
intrusives to 75m.
This is underlain by variably altered and
mineralised fine grained mafic to
ultramafic sequences to 422m. At least
3 dyke generations (aphanitic, fine
grained and a medium grained dolerite
with pyroxene phenocrysts) intrude
upon the host rocks. These dyke
swarms have zones of additional
alteration including silicification, calcite
veins and trace sulphide species.
At 422m a sharp change to greenstones
followed, with significant silica and
epidote
overprinting
until
569m
downhole.
Finally a continuation of the dyke swarm continued till the end of hole (637.1m). This interval showed
significant skarn-like alteration from 588-593m surrounded by significant silica alteration and trace sulphides
(<0.1%).
Clover RC Program
In conjunction with WARDH75, an RC program has now commenced to test the lateral thickness and several
geological structures and geochemical anomalies at the Clover target. 22 collars have been designed to a
nominal 200m depth, This will ensure that a continuous transect of the geology is revealed. Key structures to
test are the extension of the Orion alteration zone, Clover felsic zone (mag low), granite contacts and a
demagnetised North east trending fault within Big Bell Monzonite.
Page 2 | 12
ASX : TEM
2022-10-20 | Drilling Progress At Clover Target
Meleya Exploration Progress Update
In the wake of the Orion mineralisation drilling earlier in 2022, TEM has been actively exploring at the
Company’s 100% Meleya Project where there are dozens of drill ready geological targets.
➢ Orion target
➢ Ktulu
2 x diamond drillholes (1,730m)
DHEM survey complete
- Large scale geochemical sampling program commenced
➢ Master target
- initial 1 hole reconnaissance drilling program completed at the Master Target
➢ Clover target
-
First drillhole WARDH75 complete (637.1m diamond)
~4000m RC program commenced
Next Steps
- Complete Clover RC program
- Commence Regional AC program
- Ongoing data acquisition and assessment
- Ongoing fieldwork including soil sampling
The Board of the Company has authorised the release of this announcement to the market.
Page 3 | 12
ASX : TEM
2022-10-20 | Drilling Progress At Clover Target
About TEM
Tempest Minerals Ltd is an Australian based mineral exploration company with a diversified portfolio of projects in
Western Australia considered highly prospective for precious, base and energy metals. The Company has an
experienced board and management team with a history of exploration, operational and corporate success.
Tempest leverages the team’s energy, technical and commercial acumen to execute the Company’s mission - to
maximise shareholder value through focussed, data-driven, risk-weighted exploration and development of our
assets.
Investor Information
investorhub.tempestminerals.com
TEM welcomes direct engagement and encourages shareholders and interested parties to visit the TEM Investor
hub which provides additional background information, videos and a forum for stakeholders to communicate with
each other and with the company.
Contact
For more information, please contact:
Don Smith
Managing Director
Level 2, Suite 9
389 Oxford Street
Mt Hawthorn,
Western Australia
6016
www.tempestminerals.com
LinkedIn
Instagram
Twitter
+61 892000435
Facebook
Forward-looking statements
This document may contain certain forward-looking statements. Such statements are only predictions, based on certain
assumptions and involve known and unknown risks, uncertainties and other factors, many of which are beyond the
company’s control. Actual events or results may differ materially from the events or results expected or implied in any
forward-looking statement. The inclusion of such statements should not be regarded as a representation, warranty or
prediction with respect to the accuracy of the underlying assumptions or that any forward-looking statements will be or
are likely to be fulfilled. Tempest undertakes no obligation to update any forward-looking statement to reflect events or
circumstances after the date of this document (subject to securities exchange disclosure requirements). The information
in this document does not take into account the objectives, financial situation or particular needs of any person or
organisation. Nothing contained in this document constitutes investment, legal, tax or other advice.
Competent Person Statement
The information in this announcement that relates to Exploration Results and general project comments is based on
information compiled by Don Smith who is the Managing Director of Tempest Minerals Ltd. Don is a Member of
Ausimm, AIG and GSA and has sufficient experience relevant to the style of mineralisation under consideration and to the
activities undertaken to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for
Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Don consents to the inclusion in the report of the
matters based on his information in the form and context in which it appears.
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ASX : TEM
2022-10-20 | Drilling Progress At Clover Target
Appendix A: References
1. TEM ASX Announcement dated 24 February 2022 “Meleya Project Update - Drilling Commencement”
2. TEM ASX Announcement dated 18 November 2021 “Meleya Exploration Update - EIS Funding
Granted”
3. TEM ASX Announcement dated 28 March 2022 “Meleya Update - Significant Discovery At Orion
Target”
4. TEM ASX Announcement dated 05 September 2022 “Meleya Update - Drilling Commences At Master”
5. TEM ASX Announcement dated 11 October 2022 “Meleya Update - Master Drilling Completed”
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ASX : TEM
2022-10-20| Drilling Progress At Clover Target | JORC TABLE 1
Appendix B: JORC Table 1
Section 1 Sampling Techniques and Data
Criteria
Sampling techniques
JORC Code explanation
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Drilling techniques
Drill sample recovery
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Commentary
Nature and quality of sampling (eg cut channels, random chips, or specific
specialised industry standard measurement tools appropriate to the minerals
under investigation, such as down hole gamma sondes, or handheld XRF
instruments, etc). These examples should not be taken as limiting the broad
meaning of sampling.
Include reference to measures taken to ensure sample representivity and the
appropriate calibration of any measurement tools or systems used.
Aspects of the determination of mineralisation that are Material to the Public
Report.
In cases where ‘industry standard’ work has been done this would be relatively
simple (eg reverse circulation drilling was used to obtain 1 m samples from which
3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more
explanation may be required, such as where there is coarse gold that has inherent
sampling problems. Unusual commodities or mineralisation types (eg submarine
nodules) may warrant disclosure of detailed information.
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Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger,
Bangka, sonic, etc) and details (eg core diameter, triple or standard tube, depth of
diamond tails, face-sampling bit or other type, whether core is oriented and if so,
by what method, etc).
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Method of recording and assessing core and chip sample recoveries and results
assessed.
Measures taken to maximise sample recovery and ensure representative nature of
the samples.
Whether a relationship exists between sample recovery and grade and whether
sample bias may have occurred due to preferential loss/gain of fine/coarse
material.
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Diamond Drilling was used to obtain samples for geological logging and assaying.
The Drillhole was undertaken to test geochemical and geophysical anomalies as
well as understanding the stratigraphy to enable further target testing.
Drill core was measured, oriented and marked up in the field before being
transported to the company’s core processing facilities in Perth for sampling.
Oriented core was placed in an orientation rack with a line drawn along the core.
This also ensured representativeness of samples when cutting.
A Sandvik 1200 Multipurpose truck mounted drill rig was used to drill Diamond
core in HQ through the regolith, oriented HQ until the fresh rock contact and
oriented NQ2 till the end of hole.
All HQ and NQ diamond drill core were orientated using a Reflex ACT III
Orientation Tool.
Core measured using standard measuring tape. Length of core is then compared
to the recorded interval drilled from core blocks placed in trays at end of runs.
All care taken to obtain 100% core recovery (HQ & NQ); core trays photographed
wet and dry.
No relationship between sample recovery and grade is known at this stage: more
drilling is required to establish if there is any sample bias.
Core recoveries were excellent and usually 98-100%. Rare core loss was present
only in fracture zones.
ASX : TEM
2022-10-20| Drilling Progress At Clover Target | JORC TABLE 1
Logging
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Whether core and chip samples have been geologically and geotechnically logged
to a level of detail to support appropriate Mineral Resource estimation, mining
studies and metallurgical studies.
Whether logging is qualitative or quantitative in nature. Core (or costean, channel,
etc) photography.
The total length and percentage of the relevant intersections logged.
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Sub-sampling techniques and
sample preparation
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Quality of assay data and
laboratory tests
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Verification of sampling and
assaying
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Diamond drilling - All HQ/NQ drill core is photographed, core recovery calculated;
core marked up along the orientation line, and logged by experienced geologists
familiar with the style of deposit and stratigraphy.
Magnetic susceptibility is measured as an average of each metre sample of core.
The percentage of visible sulphide and the style of mineralisation (pyrrhotite,
pyrite, chalcopyrite, bornite etc) is estimated for each significant geological unit.
Specific gravity (S.G.) will be collected for representative samples of each rock
type.
Geological logging is both qualitative and quantitative. Lithology, alteration,
mineralisation, veins and structural data is captured digitally and stored securely
in the Tempest Minerals database.
If core, whether cut or sawn and whether quarter, half or all core taken.
If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled
wet or dry.
For all sample types, the nature, quality and appropriateness of the sample
preparation technique.
Quality control procedures adopted for all sub-sampling stages to maximise
representivity of samples.
Measures taken to ensure that the sampling is representative of the in situ
material collected, including for instance results for field duplicate/second-half
sampling.
Whether sample sizes are appropriate to the grain size of the material being
sampled.
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The nature, quality and appropriateness of the assaying and laboratory procedures
used and whether the technique is considered partial or total.
For geophysical tools, spectrometers, handheld XRF instruments, etc, the
parameters used in determining the analysis including instrument make and
model, reading times, calibrations factors applied and their derivation, etc.
Nature of quality control procedures adopted (eg standards, blanks, duplicates,
external laboratory checks) and whether acceptable levels of accuracy (ie lack of
bias) and precision have been established.
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Field and laboratory duplicate, certified reference sampling and blank standards
will be used regularly throughout the sampling process to ensure quality and
appropriateness of the assay technique(s).
The verification of significant intersections by either independent or alternative
company personnel.
The use of twinned holes.
Documentation of primary data, data entry procedures, data verification, data
storage (physical and electronic) protocols.
Discuss any adjustment to assay data.
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As the assays are from an initial drilling campaign, independent referee laboratory
analyses or twinned holes are not yet applicable.
Geological logging was completed using in-house logging data systems. All data
entry is carried out by qualified personnel. Standard data entry is used on site,
and is backed up directly to a cloud-based database.
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Representative samples will be taken from WARDH00075. For intervals within the
HQ zones a quarter of the core will be sampled. Core within the NQ zones will be
sampled as half core. An industry standard Corewise Automatic Core Saw will be
used to cut all diamond samples.
The holes have not yet been sampled so there has been no statistical work to
verify data quality at this stage.
It is unknown whether the sample sizes are appropriate to the grain size of the
material being sampled.
ASX : TEM
2022-10-20| Drilling Progress At Clover Target | JORC TABLE 1
Location of data points
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Data spacing and distribution
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Accuracy and quality of surveys used to locate drill holes (collar and down-hole
surveys), trenches, mine workings and other locations used in Mineral Resource
estimation.
Specification of the grid system used.
Quality and adequacy of topographic control.
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Data spacing for reporting of Exploration Results.
Whether the data spacing and distribution is sufficient to establish the degree of
geological and grade continuity appropriate for the Mineral Resource and Ore
Reserve estimation procedure(s) and classifications applied.
Whether sample compositing has been applied.
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Orientation of data in relation to
geological structure
Drill hole locations collected by handheld GPS (±3m horizontal, up to 12m vertical
error - however error was consistently below 4m.
Grid: Datum WGS84 UTM Zone 50S
Down hole surveys have been carried out by DDH1 Drilling using a Reflex Multi
Shot Survey Camera, and core orientation using Reflex ACT III Orientation Tool.
Not relevant to the current drilling.
Drill holes were placed based on geological targeting and were spaced according
to geology and historical gold intersects of each target.
Sampling will be undertaken through all potential mineralisation zones and
structural zones with contacts determined by geological contacts or sulphide
density. Sampling usually at 1m intervals.
No compositing applied
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Whether the orientation of sampling achieves unbiased sampling of possible
structures and the extent to which this is known, considering the deposit type.
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
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The measures taken to ensure sample security.
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Core was collected onsite and moved on scheduled weekly or fortnightly
collections to a processing facility in Perth where it is cut and transported directly
to the laboratory in Perth by Tempest or contract personnel.
Audits or reviews
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The results of any audits or reviews of sampling techniques and data.
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No audits have been completed at this time
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The understanding of the structure and geology intersected in drilling is in
progress and accurate true widths cannot be assumed at this time.
At present it is not believed that the drilling orientation has introduced any
sampling bias.
Section 2 Reporting of Exploration Results
Criteria
Mineral tenement and land
tenure status
JORC Code explanation
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Commentary
Type, reference name/number, location and ownership including agreements
or material issues with third parties such as joint ventures, partnerships,
overriding royalties, native title interests, historical sites, wilderness or national
park and environmental settings.
Page 8 | 12
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All drillhole information quoted is from (what is now) E5902375. This lease is owned
100% by Warrigal Mining Pty Ltd which is a subsidiary of Tempest Minerals Ltd.
No overriding interests are present to the Company’s knowledge.
Tempest acknowledges the traditional owners of the land..
ASX : TEM
2022-10-20| Drilling Progress At Clover Target | JORC TABLE 1
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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.
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The project is on managed land and has been approved by DBCA and DMIRS under
Program of works
Exploration done by other parties
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Acknowledgment and appraisal of exploration by other parties.
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N/A
Geology
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Deposit type, geological setting and style of mineralisation.
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In 2020, wide-spaced mapping and surface sampling was conducted over the greater
Meleya Project area which identified the presence of multiple gold and base metal
anomalies . Further mapping of the project identified large scale outcrops of
metamorphosed supracrustal mafic and felsic ‘greenstone’ units wrapped around a
shallow intermediate intrusion known as the Walganna Suite. Additional whole rock
geochemistry studies along the interpreted strike of the target zone confirmed the likely
presence of the Golden Grove formation and the strong prospectivity of the project . This
was followed up with reprocessing of geophysics (magnetic) datasets which assisted
the field mapping to identify the presence of numerous large scale structures considered
to be highly favourable for feeder zones for mineralisation. Ongoing field and interpretive
work also identified the presence of multiple coincident geophysical and geochemical
anomalies including the ‘Clover’ target.
The Clover target is a coincidental geophysical (magnetic high and magnetic low) and
geochemical (multi-elemental) anomaly. The maiden drilling program was an initial
diamond hole testing the previously undrilled magnetic low at the Clover target which is a
coincident geochemical, geophysical and structural anomaly.
Drilling has indicated several mineralisation styles and events as inferred in this
announcement.
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Drill hole Information
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A summary of all information material to the understanding of the exploration
results including a tabulation of the following information for 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
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dip and azimuth of the hole
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down hole length and interception depth
○
hole length.
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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.
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Drillhole information included included in Appendix B
Data aggregation methods
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In reporting Exploration Results, weighting averaging techniques, maximum
and/or minimum grade truncations (eg cutting of high grades) and cut-off
grades are usually Material and should be stated.
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No aggregation has been used to the Company’s knowledge, all results are percussion
quoted in metres where simple averaging is utilised.
No metal equivalents have been used.
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ASX : TEM
2022-10-20| Drilling Progress At Clover Target | JORC TABLE 1
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Relationship between
mineralisation widths and
intercept lengths
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Where aggregate intercepts incorporate short lengths of high grade results
and longer lengths of low grade results, the procedure used for such
aggregation should be stated and some typical examples of such
aggregations should be shown in detail.
The assumptions used for any reporting of metal equivalent values should be
clearly stated.
These relationships are particularly important in the reporting of Exploration
Results.
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’).
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The geometry of the geology is not clearly defined at this stage of exploration. Much of
Tempest's current drilling program is designed to provide regional stratigraphic and
structural understanding to further assist in vectoring mineralising events.
Diagrams
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Appropriate maps and sections (with scales) and tabulations of intercepts
should be included for any significant discovery being reported. These should
include, but not be limited to a plan view of drill hole collar locations and
appropriate sectional views.
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See appended figure(s)
Balanced reporting
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Where comprehensive reporting of all Exploration Results is not practicable,
representative reporting of both low and high grades and/or widths should be
practiced to avoid misleading reporting of Exploration Results.
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Due to the greenfields nature there is no local historic drilling to report on.
Other substantive exploration
data
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Other exploration data, if meaningful and material, should be reported including
(but not limited to): geological observations; geophysical survey 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.
●
The extensive records of legacy geological, geophysical and geochemical work performed
by previous explorers is impractical to list in this format but is accessible publicly on the
Western Australian State Government ‘WAMEX’ system.
Further work
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The nature and scale of planned further work (e.g. tests for lateral extensions
or depth extensions or large-scale step-out drilling).
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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The planned program consisted of an initial diamond drill hole to test the interpreted
geophysical and geochemical anomalies and provide stratigraphic controls on the new
geological province. Detailed observations have been taken of the core and will be used
for future exploration programs.
Exploration programs planned going forward include
○
Detailed geological interpretations and modelling
○
Downhole Electromagnetics
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Airborne and ground based EPR geophysical surveys
○
RAB or Aircore drilling
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RC Drilling
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Further survey mapping and geochemical sampling
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Page 10 | 12
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ASX : TEM
2022-10-20| Drilling Progress At Clover Target | JORC TABLE 1
Appendix C: Drillhole Data
Coordinates
Site ID
North (m)
East (m)
6797750
WARDH00075
523160
RL (m)
278.00
Geometry
Site ID
MD (m)
Dip (◦)
True Azi (◦)
WARDH00075
0.00
-70.00
270.05
WARDH00075
30.00
-70.16
268.19
WARDH00075
60.00
-70.47
267.04
WARDH00075
90.00
-70.12
265.06
WARDH00075
120.00
-69.93
266.84
WARDH00075
150.00
-69.75
267.95
WARDH00075
180.00
-69.61
267.48
WARDH00075
210.00
-69.37
268.02
WARDH00075
240.00
-69.21
268.08
WARDH00075
270.00
-69.13
268.54
WARDH00075
300.00
-68.80
268.67
WARDH00075
330.00
-68.45
268.61
WARDH00075
360.00
-68.89
268.12
WARDH00075
390.00
-68.61
268.90
WARDH00075
420.00
-68.37
270.18
WARDH00075
450.00
-67.89
269.17
WARDH00075
480.00
-67.21
269.35
WARDH00075
510.00
-67.52
268.74
WARDH00075
540.00
-67.86
268.38
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ASX : TEM
2022-10-20| Drilling Progress At Clover Target | JORC TABLE 1
WARDH00075
570.00
-65.60
267.72
WARDH00075
600.00
-65.22
269.33
WARDH00075
630.00
-64.96
268.92
Depth_From
Depth_To
Simplified Geology
Site_ID
Interval
Simplified Lithology
Comments
WARDH00075
0
68
68 Cover and laterite
Zones of pisoliths and fe oxides
WARDH00075
68
75
7 Intrusive Intermediate
Highly sheared and brecciated intrusive
WARDH00075
75
422
347 Mafic
Trace sulphides <0.1%
WARDH00075
422
569
147 Sedimentary Volcaniclastics
Trace sulphides <0.1%
WARDH00075
569
580
11 Mafic
Trace sulphides <0.1%
WARDH00075
580
580.1
0.1 Mafic Dolerite
Minor sulphides 1%
WARDH00075
580.1
588
7.9 Mafic
Trace sulphides <0.1%)
WARDH00075
588
593
5 Skarn
WARDH00075
593
637.1
44.1 Mafic
Skarn like zone, trace sulphides <0.1%)
Trace sulphides <0.1%
Page 12 | 12
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