TIDMTHR
RNS Number : 0273A
Thor Mining PLC
16 January 2020
16 January 2020
THOR MINING PLC
GOLD, NICKEL & CHROME - PILBARA SAMPLE ASSAYS
The Board of Thor Mining Plc ("Thor") (AIM, ASX: THR) is pleased
to advise gold, nickel, and chromium assays from preliminary
geochemistry reconnaissance at its 100% owned Pilbara Goldfield
tenements (E46/1262 and E46/1190) in Western Australia.
The program comprised stream sediment samples from 44 sites
located to provide a broad coverage across the tenements. Initial
gold panning provided strong evidence of gold prospectivity.
Subsequent laboratory assay results now to hand provide further
support for the gold potential in addition to identifying nickel
and chrome potential of the location.
Highlights:
-- Three samples assayed above 0.3g/t gold
-- Including one assay of 0.9g/t gold
-- Anomalous nickel & chromium up to 1,272ppm Ni and 2,074ppm Cr.
The assays follow up previously announced results from panning
(6 Nov 2019) with best results of:
-- Visible gold from panning of 13 of the 44 sediment trap sites sampled;
-- Maximum observed gold comprised 20 grains (very fine) from
one trap site with five grains (very fine) observed in the adjacent
creek sample;
Mr Mick Billing, Executive Chairman, commented:
"Very encouraging results from our initial reconnaissance survey
on this ground, with plenty of follow up targets, focussing on
gold, nickel & chrome."
"The elevated nickel & chrome samples either side of the
ultramafic ridge on the western side of the licence area is
particularly intriguing".
"The next phase or work here is likely to comprise further
detailed stream sediment sampling, and soil sampling to confirm and
extend these results, along with geological mapping".
The program was designed and implemented by George Merhi of Bann
Geological Services Pty Ltd.
The programme comprised stream sediment trap site sampling
(detailed in Table A). Samples comprising coarse (-5mm+2mm) and
fine (-2mm) fraction sediment were collected for geochemical
analysis comprising Au 2kg BLEG (fine fraction), aqua regia (fine
and coarse fractions) and multi-element analysis.
The combined assay and gold panning results have several areas
for follow up field evaluation likely to comprise detailed stream
sediment sampling, soil sampling and geological mapping to better
evaluate potential source lithologies.
Elevated nickel and chrome results obtained from samples 19PST23
and 19PST31 straddle the north-south trending ultramafic ridge on
the west of E46/1262 provide strong encouragement for follow up
sampling and evaluation.
Table: A Summary of results
Visual Au Au Au Au Repeat Ni Cr
Sample Gold (CN(1) Repeat (AR(2) ppb ppm ppm
No Easting Northing Tenement count Comment ) ppb ppb ) ppb
19PST1 788517 7585914 E46/1262 20 v fine No significant assays
19PST2 788542 7585747 E46/1262 5 v fine "
med
19PST3 787507 7584556 E46/1262 1 rounded "
19PST4 787501 7584365 E46/1262 0 "
19PST5 785739 7580319 E46/1262 0 "
19PST6 785962 7580255 E46/1262 0 "
19PST7 784251 7578348 E46/1262 0 "
19PST8 784238 7578402 E46/1262 0 "
19PST9 780980 7591940 E46/1190 0 "
19PST11 790941 7586131 E46/1262 0 "
19PST12 790887 7586107 E46/1262 0 "
19PST13 788661 7584372 E46/1262 0 "
19PST14 788668 7584326 E46/1262 0 "
nugget
19PST15 784554 7581458 E46/1262 1 angular 6.7 72.26
19PST16 784518 7581504 E46/1262 0 No significant assays
19PST17 783611 7580160 E46/1262 0 "
19PST18 783583 7580269 E46/1262 0 "
19PST19 779729 7590847 E46/1190 0 256 373
19PST20 779691 7590795 E46/1190 0 No significant assays
19PST21 779637 7589090 E46/1190 2 med flat "
1 m/ 1
19PST22 779673 7589010 E46/1190 2 f flat "
19PST23 779543 7583792 E46/1262 0 643 1477
19PST24 779545 7583840 E46/1262 0 No significant assays
19PST25 781942 7586463 E46/1190 0 "
19PST26 781830 7586363 E46/1190 0 "
19PST27 781797 7589110 E46/1190 2 very fine "
1 fine
19PST28 781421 7588166 E46/1190 1 flat "
19PST29 781369 7588090 E46/1190 0 "
19PST30 781323 7583894 E46/1262 0 "
19PST31 781247 7583860 E46/1262 0 1272 2074
19PST32 780820 7586665 E46/1262 2 fine 21.98 119.54 864
fine
19PST33 780775 7586684 E46/1262 1 chunky No significant assays
19PST34 780079 7586846 E46/1262 0 "
19PST35 784674 7582582 E46/1262 0 "
19PST36 784678 7582468 E46/1262 1 1vcs flat "
19PST37 783105 7586695 E46/1190 0 "
19PST38 789014 7585264 E46/1262 0 "
19PST39 788997 7585253 E46/1262 0 "
19PST40 787488 7585639 E46/1190 0 "
19PST41 782773 7583406 E46/1190 0 "
19PST42 782779 7583466 E46/1190 0 "
19PST43 783418 7586477 E46/1190 0 20.19 12.83
coarse
19PST44 789142 7585884 E46/1262 1 rounded 463
19PST45 789173 7585849 E46/1262 1 med No significant assays
-------- --------- --------- ------- ---------- ------------------------------------------------------
1. CN: Cyanide leach
2. AR: Aqua Regia
The information contained within this announcement is deemed to
constitute inside information as stipulated under the Market Abuse
Regulations (EU) No. 596/2014. Upon the publication of this
announcement, this inside information is now considered to be in
the public domain.
Enquiries:
Mick Billing +61 (8) 7324 Thor Mining PLC Executive Chairman
1935
Ray Ridge +61 (8) 7324 Thor Mining PLC CFO/Company
1935 Secretary
Colin Aaronson/ +44 (0) 207 383 Grant Thornton UK Nominated Adviser
Richard Tonthat/ Ben 5100 LLP
Roberts
Nick Emerson +44 (0) 1483 SI Capital Ltd Joint Broker
Claire Louise Noyce 413 500 Hybridan LLP Joint Broker
/ +44 (0) 203 764
John Beresford-Peirse 2341
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.
Competent Persons Report
The information in this report that relates to exploration
results is based on information compiled by Richard Bradey, who
holds a BSc in applied geology and an MSc in natural resource
management and who is a Member of The Australasian Institute of
Mining and Metallurgy. Mr Bradey is an employee of Thor Mining PLC.
He has sufficient experience which is relevant to the style of
mineralisation and type of deposit under consideration and to the
activity which he is undertaking to qualify as a Competent Person
as defined in the 2012 Edition of the 'Australasian Code for
Reporting of Exploration Results, Mineral Resources and Ore
Reserves'. Richard Bradey consents to the inclusion in the report
of the matters based on his information in the form and context in
which it appears.
JORC Code, 2012 Edition - Table 1 report template
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria JORC Code explanation Commentary
Sampling The programme comprised
techniques * Nature and quality of sampling (eg cut channels, stream sediment trap
random chips, or specific specialised industry site sampling with
standard measurement tools appropriate to the coarse (3kg -5mm+2mm)
minerals under investigation, such as down hole gamma and fine (4kg -2mm)
sondes, or handheld XRF instruments, etc). These fraction samples collected
examples should not be taken as limiting the broad for geochemical analysis
meaning of sampling. for Au 2kg BLEG (fine
fraction), aqua regia
(fine and coarse fractions)
* Include reference to measures taken to ensure sample and multi-element analysis.
representivity and the appropriate calibration of any In addition a 10-12
measurement tools or systems used. kg sample of -2mm material
was collected from
each trap site and
* Aspects of the determination of mineralisation that panned in the field.
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
techniques * 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).
Drill sample Not applicable
recovery * 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.
Logging No logging was undertaken
* 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.
Sub-sampling Samples were screened
techniques * If core, whether cut or sawn and whether quarter, in the field as described
and sample half or all core taken. in "Sampling Techniques"
preparation 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 sediment
geochemistry.
* 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.
Quality The proposed assay
of assay * The nature, quality and appropriateness of the method is appropriate
data and assaying and laboratory procedures used and whether for preliminary 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
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 Data reported is for
and distribution * Data spacing for reporting of Exploration Results. a preliminary reconnaissance
survey and is indicative
of the mineral prospectivity.
* Whether the data spacing and distribution is No inferences are made
sufficient to establish the degree of geological and as to mineralisation
grade continuity appropriate for the Mineral Resource potential.
and Ore Reserve estimation procedure(s) and
classifications applied.
* Whether sample compositing has been applied.
Orientation Orientational bias
of data * Whether the orientation of sampling achieves unbiased is not applicable to
in relation sampling of possible structures and the extent to stream sediment sampling
to geological which this is known, considering the deposit type. which are essentially
structure one dimensional.
* 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 Samples were flown
security * The measures taken to ensure sample security. back to Newman and
trucked to the assay
laboratory in Perth.
Sample security levels
are considered appropriate
for a preliminary reconnaissance
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 listed in the preceding section also apply to this
section.)
Mineral Exploration results
tenement * Type, reference name/number, location and ownership is reported on E46/1190
and land including agreements or material issues with third and E46/1262 in Western
tenure parties such as joint ventures, partnerships, Australia held 100%
status overriding royalties, native title interests, by Thor Mining plc.
historical sites, wilderness or national park and
environmental settings.
* 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 Not applicable
done by * Acknowledgment and appraisal of exploration by other
other parties parties.
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 field observations
methods * In reporting Exploration Results, weighting averaging 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.
* The assumptions used for any reporting of metal
equivalent values should be clearly stated.
Relationship No drilling has been
between * These relationships are particularly important in the undertaken or reported
mineralisation reporting of Exploration Results.
widths
and 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 It is anticipated that
work * The nature and scale of planned further work (eg follow up stream sediment
tests for lateral extensions or depth extensions or geochemistry and geological
large-scale step-out drilling). mapping will be undertaken
to locate sources of
anomalous results.
* 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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END
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