TIDMTHR
RNS Number : 5275T
Thor Mining PLC
25 July 2022
25 July 2022
Thor Mining PLC
("Thor" or the "Company")
Ragged Range Project, WA
Sampling Update
High-grade Copper and Gold Returned at the Sterling and Kelly's
Prospects
The directors of Thor Mining Plc (AIM, ASX: THR, OTCQB: THORF)
are pleased to provide an exploration update on sampling and
mapping programs which have been completed at the Company's 100%
owned Ragged Range Project, located in Eastern Pilbara, Western
Australia.
Project highlights:
-- Three programs of reconnaissance mapping with rock chip and
stream sediment sampling completed over the Ragged Range
Project.
-- Rock chip sampling over the 13km-long Sterling Prospect
returned up to 6g/t Au in rock chip (R00053-Photo 1) along newly
identified cross structures that strike oblique to the regional
faulted contact - Norman Cairn Fault - between the Dalton Suite and
Euro Basalts (Figure 2).
-- At the Kelly's Prospect, anomalous gold (up to 1.46g/t) and
copper (4.8% Cu) have been identified along the northwest trending,
1.2km long x 25m wide ridge at the contact of Euro Basalt and
Boobina Porphyry (Figure 2).
-- Heritage Survey with the Nyamal Native Title group was
completed over the Kelly's Prospect in preparation for drill
testing.
-- Geological mapping and sampling will continue over the
Project as the Company validates its structural and mineralising
geological models.
-- All samples from the recently completed RC drilling program
have now been received by the laboratory, and the Company awaits
assay results.
Nicole Galloway Warland, Managing Director of Thor Mining,
commented:
"These latest highly encouraging sampling results, including
high-grade copper and gold, from three consecutive programs at
Ragged Range continue to build on and develop our geological
understanding, with particular emphasis on structural controls on
mineralisation at both the Sterling gold prospect and Kelly's
copper-gold prospect.
"Sampling is to continue with an airborne magnetics survey over
the Kelly's copper-gold prospect and the north-eastern portion of
the tenure scheduled for late July, to assist with lithological and
structural interpretations."
Figure 1: Ragged Range Tenement Location Map showings priority
prospects may be viewed via the following links:
http://cms.thormining.com/sites/thormining/media/pdf/asx-announcements/20212022/20-004-4f-ragged-range-greatland-highlights.jpg
The Ragged Range Project, located in the prospective Eastern
Pilbara Craton, Western Australia, is 100% owned by Thor Mining
(covering E46/1190, E46/1262, E46/1355, E46/1340 and recently
granted E46/1393, Figure 1).
Sampling Programs
In parallel with the recently completed RC drilling at the
Sterling and Krona Prospects (AIM:THR 11 July 2022), three rock
chip and stream sediment sampling programs across the Ragged Range
Project area have been undertaken.
The geological mapping and sampling programs were designed
to:
-- Further develop and validate Thor's geological model by
identifying key mineralising structures and gold distribution at
the Sterling prospect.
-- Sample historic copper working at Kelly's Prospect to gain a
greater understanding of the controlling structures, the tenor of
gold mineralisation associated with the visible copper and /or
geochemical lithological boundaries.
-- Review lithological boundaries and potential alteration
signatures using newly-acquired ASTER data.
-- Identify potential outcropping lithium-caesium-tantalum (LCT)
enriched pegmatites.
97 rock chip samples and 24 stream samples were collected in
total (of which 57 rock chips and 12 stream sample results have
been received back from the laboratory to date), highlighting
significant gold and copper mineralisation and assisting with the
structural interpretation of key controlling structures at Sterling
and Kelly's Prospects (Figure 2 and Table X).
No outcropping LCT-enriched pegmatites have been identified to
date, however, lithium exploration will continue with stream and
soil sampling within the 10km goldilocks zone around the
prospective Mondana Monzogranite, part of the Split Rock
Supersuite. Encouraging anomalous pathfinders in some samples
warrant further investigation.
Photo 1: Rock chip sample R0053- quartz vein in sheared and
foliated ultramafics may be viewed via the following link:
http://www.thormining.com/sites/thormining/media/pdf/ASX-Announcements/20212022/Photo-1--sheared-quartz-vein-in-sheared-and-foliated-ultramaficR000053.JPG
Figure 2: Sample location map may be viewed via the following
link:
http://www.thormining.com/sites/thormining/media/pdf/asx-announcements/20212022/ragged-range-geochem-202206v2.png
Table X: Significant samples above 0.1g/t Au and 0.6% Cu
PROSPECT SAMPLE EASTING NORTHING g/t GOLD % COPPER Sample Type
ID
Kelly's R00013 797776 7586901 1.46 Rock Chip
-------- -------- --------- --------- --------- -------------
Kelly's R00014 794733 7588377 0.87 Rock Chip
-------- -------- --------- --------- --------- -------------
Kelly's R00015 797143 7587790 0.1 0.69 Rock Chip
-------- -------- --------- --------- --------- -------------
Kelly's R00016 797131 7587762 4.48 Channel Chip
-------- -------- --------- --------- --------- -------------
Kelly's R00017 797234 7587632 0.2 2.75 Channel Chip
-------- -------- --------- --------- --------- -------------
Kelly's R00042 794076 7586684 0.36 1.22 Channel Chip
-------- -------- --------- --------- --------- -------------
Sterling R00053 781441 7584154 6.0 Rock chip
-------- -------- --------- --------- --------- -------------
Sterling R00055 781797 7584185 0.73 Rock Chip
-------- -------- --------- --------- --------- -------------
Sterling R00056 782316 7583348 0.14 Rock Chip
-------- -------- --------- --------- --------- -------------
Sterling ST0002 784364 7581183 0.98 Stream
-------- -------- --------- --------- --------- -------------
Project - GDA94 Zone 50
Sterling Prospect
The focus to date at Sterling Prospect has been on the 13km gold
corridor defined by stream and soil samples along the
north-northwest thrust faulted contact between the Dalton Suite
ultramafics and the Euro Basalt (Norman Cairn Fault). After a
detailed geological and structural review of the complex folding
and faulting within the ultramafics and basalts by consultant
geologist Jennifer Gunter, Virga Consulting Pty Ltd, several
priority areas and potential dilutional zones have been
highlighted, warranting ground truthing, sampling, and follow up
drill testing (Figure 3). Close to one of these new structural
target areas (called R27), a coarse stream sediment sample (ST0002)
reported 0.98g/t Au with one grain of gold noted in the pan. This
target and others were tested as part of the recently completed RC
drilling program (AIM: THR 11 July 2022).
The 6g/t Au sample (R00053- Photo 1) lies within the "Kink
zone": in Central Sterling, an area of complex faulting and
significant dilation. This gold sample was collected within an
outcropping quartz breccia vein associated with an oblique fault
system to the regional Norman Cairn Fault (Figure 2 and 3).
Figure 3: Faulting and folding structural interpreation
overlaying landsat image may be viewed via the following link:
http://www.thormining.com/sites/thormining/media/pdf/ASX-Announcements/20212022/rr-structural-intrep.jpg
Kelly's Prospect
The Kelly's Prospect consists of a few small, high-grade
historic copper workings; these appear to be associated with shear
zones cross cutting the northwest trending Boobina Porphyry/Euro
Basalt boundary (Figure 1).
At Kelly's Mine, historic production(1) between 1955-1970,
although small, was of very high grade - 610t of ore averaging
19.47% Cu (Figure 1 and Photo plate 2).
Exploration to date has been sporadic, with no systematic
approach over the area. Thor's sampling program to date has
targeted areas along strike of known mineralisation, zones of
alteration, shears/faults and zones of brecciation, including
sampling along the northwest trending, 1.2km long x 25m wide ridge
between Euro Basalt and Boobina Porphyry (Photo 2). Both anomalous
gold (up to 1.46g/t) and copper (up to 4.28% Cu) have been
identified.
A Heritage Survey with the Nyamal Native Title Claimant Group
was completed over the Kelly's Prospect in early July in
preparation for drill testing.
Photo 2: Kelly's Prospect looking southeast showing ridge
between Boobina Porphyry and Euro Basalt
http://www.thormining.com/sites/thormining/media/pdf/asx-announcements/20212022/photo-2--kellys-prospect-.jpg
Next Steps:
-- Await RC drilling assay results - anticipated in August -
September.
-- Downhole Electromagnetic Survey (DHEM) on Krona
drillhole.
-- Airborne magnetic survey over the north-eastern portion of
tenure, scheduled for late July.
-- Continue to review and model historic data over the Kelly's
area in preparation for drill testing.
-- Await the full set of rock chip sample data, especially
covering the Kelly's South ridge where 1.46g/t Au was reported.
-- Continue reconnaissance sampling over ground in the northern
portion of tenure for prospective lithium-caesium-tantalum enriched
(LCT) pegmatites.
(1) https://www.mindat.org/loc-122951.html
This announcement is authorised for release to the market by the
Board of Directors.
For further information, please contact:
Thor Mining PLC
Nicole Galloway Warland, Managing Director Tel: +61 (8) 7324
Ray Ridge, CFO / Company Secretary 1935
Tel: +61 (8) 7324
1935
WH Ireland Limited (Nominated Adviser Tel: +44 (0) 207
and Joint Broker) 220 1666
Jessica Cave / Darshan Patel / Megan Liddell
SI Capital Limited (Joint Broker) Tel: +44 (0) 1483
413 500
Nick Emerson
Yellow Jersey (Financial PR) thor@yellowjerseypr.com
Sarah Hollins / Henry Wilkinson Tel: +44 (0) 20 3004
9512
This announcement contains inside information for the purposes
of Article 7 of the UK version of Regulation (EU) No 596/2014 which
is part of UK law by virtue of the European Union (Withdrawal) Act
2018, as amended ("MAR"). Upon the publication of this announcement
via a Regulatory Information Service, this inside information is
now considered to be in the public domain.
Competent Persons Report
The information in this report that relates to exploration
results is based on information compiled by Nicole Galloway
Warland, who holds a BSc Applied geology (HONS) and who is a Member
of The Australian Institute of Geoscientists. Ms Galloway Warland
is an employee of Thor Mining PLC. She has sufficient experience
which is relevant to the style of mineralisation and type of
deposit under consideration and to the activity which she is
undertaking 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'. Nicole Galloway
Warland consents to the inclusion in the report of the matters
based on her information in the form and context in which it
appears.
Updates on the Company's activities are regularly posted on
Thor's website www.thormining.com , which includes a facility to
register to receive these updates by email, and on the Company's
twitter page @ThorMining .
About Thor Mining PLC
Thor Mining PLC (AIM, ASX: THR; OTCQB: THORF) is a diversified
resource company quoted on the AIM Market of the London Stock
Exchange, ASX in Australia and OTCQB Market in the United
States.
The Company is advancing its diversified portfolio of precious,
base, energy and strategic metal projects across USA and Australia.
Its focus is on progressing its copper, gold, uranium and vanadium
projects, while seeking investment/JV opportunities to develop its
tungsten assets.
Thor owns 100% of the Ragged Range Project, comprising 92 km(2)
of exploration licences with highly encouraging early stage gold
and nickel results in the Pilbara region of Western Australia.
At Alford East in South Australia, Thor is earning an 80%
interest in copper deposits considered amenable to extraction via
In Situ Recovery techniques (ISR). In January 2021, Thor announced
an Inferred Mineral Resource Estimate of 177,000 tonnes contained
copper & 71,000 oz gold(1).
Thor also holds a 30% interest in Australian copper development
company EnviroCopper Limited, which in turn holds rights to earn up
to a 75% interest in the mineral rights and claims over the
resource on the portion of the historic Kapunda copper mine and the
Alford West copper project, both situated in South Australia, and
both considered amenable to recovery by way of ISR.(2)(3)
Thor holds 100% interest in two private companies with mineral
claims in the US states of Colorado and Utah with historical
high-grade uranium and vanadium drilling and production
results.
Thor holds 100% of the advanced Molyhil tungsten project,
including measured, indicated and inferred resources , in the
Northern Territory of Australia, which was awarded Major Project
Status by the Northern Territory government in July 2020.
Adjacent to Molyhil, at Bonya, Thor holds a 40% interest in
deposits of tungsten, copper, and vanadium, including Inferred
resource estimates for the Bonya copper deposit, and the White
Violet and Samarkand tungsten deposits.
Notes
(1)
www.thormining.com/sites/thormining/media/pdf/asx-announcements/20210127-maiden-copper.gold-estimate-alford-east-sa.pdf
(2)
www.thormining.com/sites/thormining/media/pdf/asx-announcements/20172018/20180222-clarification-kapunda-copper-resource-estimate.pdf
(3)
www.thormining.com/sites/thormining/media/aim-report/20190815-initial-copper-resource-estimate---moonta-project---rns---london-stock-exchange.pdf
(4)
www.thormining.com/sites/thormining/media/pdf/asx-announcements/20210408-molyhil-mineral-resource-estimate-updated.pdf
(5)
www.thormining.com/sites/thormining/media/pdf/asx-announcements/20200129-mineral-resource-estimates---bonya-tungsten--copper.pdf
1 JORC Code, 2012 Edition - Table 1 report template
1.1 Section 1 Sampling Techniques and Data
Criteria JORC Code explanation Commentary
Sampling The programme comprised
techniques * Nature and quality of sampling (eg cut channels, BLEG stream sediment
random chips, or specific specialised industry sampling - assayed for
standard measurement tools appropriate to the Au by the 1kg BLEG method
minerals under investigation, such as down hole gamma and fire assay FA001.
sondes, or handheld XRF instruments, etc). These Rock chip sampling was
examples should not be taken as limiting the broad based on geological
meaning of sampling. outcrops, with analysis
for Au by 25g fire assay
FA001 and multi-element
* Include reference to measures taken to ensure sample by MA101 four acid digest.
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.
==============================================================
Drilling Not applicable- no drilling
techniques * Drill type (eg core, reverse circulation, open-hole reported
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).
============== ============================================================== =============================
Drill sample Not applicable - no
recovery * Method of recording and assessing core and chip drilling reported
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.
============== ============================================================== =============================
Logging No logging was undertaken
* Whether core and chip samples have been geologically Lithological descriptions
and geotechnically logged to a level of detail to recorded for all samples
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.
============== ============================================================== =============================
Sub- sampling Samples were screened
techniques * If core, whether cut or sawn and whether quarter, in the field as described
half or all core taken. in "Sampling Techniques"
above.
The sample sizes are
* If non-core, whether riffled, tube sampled, rotary as per industry standard
split, etc and whether sampled wet or dry. for stream
* For all sample types, the nature, quality and
============== ============================================================== =============================
Criteria JORC Code explanation Commentary
and sample appropriateness of the sample preparation sediment geochemistry.
preparation technique. Field duplicates and
* Quality control procedures adopted for all blank samples were submitted
sub-sampling stages to maximise representivity of for assay with the other
samples. 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.
===============================================================
Quality The proposed assay method
of assay * The nature, quality and appropriateness of the is appropriate for preliminary
data and assaying and laboratory procedures used and whether exploration.
laboratory the technique is considered partial or total.
tests
* 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.
==================== =============================================================== ================================
Verification Not undertaken
of sampling * The verification of significant intersections by
and assaying 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.
==================== =============================================================== ================================
Location Hand held GPS - MGA94
of data * Accuracy and quality of surveys used to locate drill zone 50 (GDA)
points 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.
==================== =============================================================== ================================
Data spacing Sampling is based on
and distribution * Data spacing for reporting of Exploration Results. outcrop
* 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.
==================== =============================================================== ================================
Orientation Orientational bias is
of data * Whether the orientation of sampling achieves unbiased not applicable to stream
in relation sampling of possible structures and the extent to and rockchip sampling
to geological which this is known, considering the deposit type. at this stage
structure
* 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 Geochemistry samples
security * The measures taken to ensure sample security. were trucked back from
Nullagine to the Bureau
Veritas Adelaide, SA
Sample Security levels
are considered appropriate
for preliminary surface
geochemistry assessment.
==================== =============================================================== ================================
Audits None undertaken
or reviews * The results of any audits or reviews of sampling
techniques and data.
================== =============================================================== ====================================
Section 2 Reporting of Exploration Results
Criteria JORC Code explanation Commentary
Mineral tenement Exploration results are
and land tenure * Type, reference name/number, location and ownership reported on E46/1190,
status including agreements or material issues with third E46/1262, E46/1393 in
parties such as joint ventures, partnerships, Western Australia held
overriding royalties, native title interests, 100% by Pilbara Goldfields
historical sites, wilderness or national park and Pty Ltd, Thor Mining
environmental settings. PLC.
* 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 Sporadic surface
done by other * Acknowledgment and appraisal of exploration by other geochemistry
parties parties. over tenure carried out
by Great Southern Mines
up to 1997. No previous
lithium exploration.
======================== ============================================================== ============================
Geology Yet to be determined
* Deposit type, geological setting and style of
mineralisation.
======================== ============================================================== ============================
Drill hole No drilling has been
Information * A summary of all information material to the undertaken or reported
understanding of the exploration results including a
tabulation of the following information for all
Material drill holes:
o easting and northing of the drill hole
collar
o elevation or RL (Reduced Level - elevation
above sea level in metres) of the drill
hole collar
o dip and azimuth of the hole
o down hole length and interception depth
o 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 Only rock chip and stream
methods * In reporting Exploration Results, weighting averaging assays have been reported.
techniques, maximum and/or minimum grade truncations There has been no data
(eg cutting of high grades) and cut-off grades are aggregation.
usually Material and should be stated.
* 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.
* assumptions used for any reporting of metal
equivalent
* The values should be clearly stated.
======================== ============================================================== ============================
Criteria JORC Code explanation Commentary
Relationship No drilling has been
between mineralisation * These relationships are particularly important in the undertaken or reported
widths and reporting of Exploration Results.
intercept
lengths
* 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 A sample location plan
* Appropriate maps and sections (with scales) and including current 1:100k
tabulations of intercepts should be included for any scale geology has been
significant discovery being reported These should provided
include, but not be limited to a plan view of drill
hole collar locations and appropriate sectional
views.
======================== ============================================================== ============================
Balanced All results have been
reporting * Where comprehensive reporting of all Exploration reported
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.
======================== ============================================================== ============================
Other substantive All data have been
exploration * Other exploration data, if meaningful and material, reported
data 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.
======================== ============================================================== ============================
Further work It is anticipated that
* The nature and scale of planned further work (eg follow up and
tests for lateral extensions or depth extensions or reconnaissance
large-scale step- out drilling). geochemistry (rockchip,
soil & stream) and
geological
* Diagrams clearly highlighting the areas of possible mapping will be undertaken
extensions, including the main geological over tenure , including
interpretations and future drilling areas, provided Sterling and Kelly's
this information is not commercially sensitive. prospects.
======================== ============================================================== ============================
Other substantive All data have been reported
exploration * Other exploration data, if meaningful and material,
data 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.
==============================================================
Further It is anticipated that
work * The nature and scale of planned further work (eg follow up and reconnaissance
tests for lateral extensions or depth extensions or geochemistry (rockchip,
large-scale step- out drilling). soil & stream) and geological
mapping will be undertaken
over tuenure , including
* Diagrams clearly highlighting the areas of possible Sterling and Kellys prospects.
extensions, including the main geological
interpretations and future drilling areas, provided
this information is not commercially sensitive.
================== ============================================================== =================================
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