Artemis Resources Limited: Shallow Nickel-Copper Resource Defined at Radio Hill
(firmenpresse) - Shallow Nickel-Copper Resource Defined at Radio Hill
Indicated JORC resource of 1.15 Mt (at) 0.52% Ni, 0.73% Cu and 277ppm Co for 5,980 t contained Nickel, 8,395 t contained Copper and 318 t contained Cobalt
Artemis Resources Limited (Artemis or the Company) (ASX:ARV, Frankfurt:ATY, US OTC:ARTTF) is pleased to announce a new, shallow JORC 2012 resource estimate for the companys 100% owned Radio Hill Nickel Mine in the West Pilbara region of Western Australia. The December 2018 resource estimate is classified to JORC 2012 compliant Indicated category.
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Figure 1: Radio Hill Mine area, Processing Plant and resource drilling location.
Artemis Executive Director Ed Mead commented:
This updip extension to the historic Radio Hill underground represents a new, shallow nickel - copper resource approximately 400m from the Radio Hill plant.
Further resource development work is required to determine the optimum means to monetise the project and this work will be reviewed in 2019.
RADIO HILL MINE - RESOURCE SUMMARY
The Radio Hill Nickel Mine is in the West Pilbara region of Western Australia, 35 km by road south of the city of Karratha (Figure 2). Access is via the Karratha - Tom Price sealed road and then mine access tracks. Radio Hill is on a fully approved mining lease and contains Artemis 100% owned Radio Hill Processing Plant and the historic Radio Hill underground mine. The underground mine ore was processed through Radio Hill prior to the plant being placed into care and maintenance in September 2008 due to low commodity prices.
Drilling by previous operators of Radio Hill comprised 1,052 drill holes including open hole percussion, RAB, RC, underground sludge and diamond drilling for a total of approximately 89,885 metres. In 2018 Artemis drilled the shallow mineralisation up-dip from the Fox underground workings on a regular grid. This included another 80 Reverse Circulation (RC) drill holes and 7 diamond drill holes for an additional 6,779.5 metres, aiming to verify older drilling and to increase the drill data available in the upper levels of the mineralisation.
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Figure 2: Radio Hill Location Map
This drilling, sampling and assaying has been verified by Al Maynard & Associates (AM&A) as complying with the JORC Code (2012) for reporting exploration results and Mineral Resources. AM&A used the Artemis drilling only to model the shallow resources, ignoring the earlier drilling as it could not be verified as conforming to the JORC Code (2012).
These Indicated resources, as estimated by AM&A are 1.15 million tonnes at 0.52% Ni, 277ppm Co and 0.73% Cu.
Cobalt is a potential by-product that may report to the Ni concentrate and so is included in the resource estimate.
CLASSIFICATION
Considering the spacing of the drill intersections, quality of the drilling and sampling and the degree of understanding of the geological controls on the mineralisation, AM&A have classified all the reported resources at Radio Hill as Indicated according to the JORC Code (2012).
Table 1: AM&A Resource Estimate for the Radio Hill Ni-Cu Project
(December 2018 - Indicated Resources (at) 0.0% Cu cut off grade)
Ore TonnagNickel Copper Cobalt Nickel Copper Cobalt
Type e Grade Grade Grade Metal Metal Metal
(tonne (tonnes
(Milli(Ni %) (Cu %) (Co%) s Cu) (tonnes
on) Ni) Co)
Fresh 1.15 0.52 0.73 0.0277 5980 8395 318
Total 1.15 0.52 0.73 0.028 5980 8395 318
The JORC Code, 2012, Table 1 Sections 1, 2 and 3 are appended at the end of this announcement.
The December 2018 resource is a stand alone resource and is independent of the previously reported Fox Resources 2012 resources (refer 4 April 2012, - Fox Resources Exploration Update, Public announcement ASX - www.asx.com.au/asxpdf/20120404/pdf/425fyyslg7ldy1.pdf )
RADIO HILL DEPOSIT GEOLOGY AND MINERALISATION
Radio Hill is a small Archaean, 2892 ± 34 Ma, synorogenic-synvolcanic Ni-Cu bearing mafic intrusion containing a minor ultramafic component near its basal contact and is probably comagmatic with nearby Mount Sholl and Munni Munni intrusions. It is considered to be a Voisey's Bay analogue. The massive and disseminated Ni-Cu-Co sulphides are hosted by thin gabbroic units underlying layered ultramafic-mafic sequence. Sulphides are confined to feeder conduit or depressions of basal contact.
Mineralisation is patchy blebs of medium grained disseminated to matrix sulphides in the basal peridotite to olivine pyroxenite. Pyrrhotite, with sub-ordinate pentlandite, and chalcopyrite, forms lobate aggregates up to 12% volume of the Ultramafic host. Pyrrhotite forms layers up to 20 metres thick, 8 metres above the basal contact of an intrusion.
Post-intrusion deformation has tilted the deposit 25-40 degrees to the southeast. The geometry has been modified by northerly trending sinistral faults that, in the A and B massive zone, have created independent mining blocks. These faults have a displacement between one and ten metres and have been named, from east to west, Ebenezer, Newman, Toth, Forster, Irvin and 3-Names.
These faults are all displaced by Brutus fault, which is the most significant fault in the deposit. Brutus is a brittle-ductile deformation zone that has an approximate dip between 35-60 degrees and strikes approximately NNW (approx. 330 degrees mine grid). This fault has a sinistral normal movement with a horizontal translation of approximately 30 metres.
Dolerite dykes have intruded the orebody with relaxation, following deformation, into pre-existing weakness created by faulting. Two mine-site wide dolerite dykes, named Aminya and Zen, have truncated the orebody and act as pillars for the underground mining.
In the 1980s AGIP Australia Pty Ltd divided observed mineralisation, from south to north, into zones A to F although it is potentially misleading as different mineralisation types transverse zonal boundaries. Within these zones three types of mineralisation have been observed at the Radio Hill mine, which are summarised as follows:
- Massive medium to very coarse grained pyrrhotite-chalcopyrite-pentlandite ore that is often strongly brecciated and displays quartz-carbonate-chlorite veining,
- Stringer/gash vein, disseminated and blebby pyrrhotite-chalcopyrite-pentlandite mineralisation associated with tremolite-actinolite-chlorite alteration and minor carbonate veining,
- Disseminated fine grained pyrrhotite-chalcopyrite-pentlandite sulphides hosted by the gabbro, and pyrrhotite dominant sulphides within the ultramafic immediately overlying the gabbro.
A, B and H zones are characterised by massive and some minor disseminated mineralisation. Stringer type mineralisation is not observed in the A and B zones. The division between A and B zones is arbitrary. A zone occurs below the 875 mRL in the eastern domain of the mine overlying, and in parts incorporating, the underlying basement. B zone occurs above the 875 mRL in the western domain of the mine subparallel to Brutus, discordant to basement, but stratabound within the orebody gabbro. A and B zones geometry is intimately associated with the Brutus Fault. H zone is a faulted offset (by Brutus) of A zone.
C and D zones are characterised by stringer mineralisation overlying a basal interval of massive sulphides. Mineralisation in the C and D zones is strata-form as it mainly occurs 10-20 metres above the basement contact, but is not strictly speaking primary mineralisation because it has been remobilised into veins/stringers and blebs. The C and D zones are also intimately associated with the Brutus Fault. D zone is a faulted offset (by Brutus) of C zone.
DRILLING INFORMING THE RADIO HILL RESOURCE ESTIMATE
Drilling methods used at the Radio Hill deposits include:
- Diamond drilling
- RC drilling
- RAB and open hole percussion drilling
Only the Artemis 2018 RC drilling is used to inform the resource estimate. Table 2 below summarises the total drilling data included in the Radio Hill database including drilling carried out by a number of previous operators stretching back to the 1970s.
All the holes in highlighted in yellow were deleted from the database as they were labelled as being either open hole percussion or sludge samples which do not provide suitable, reliable samples for resource modelling. Only the Reverse Circulation (RC) and diamond drilling was retained in the database since, if the drilling and sampling was correctly carried out, the samples produced should provide reliable assay results.
Table 2: Summary of drilling at Radio Hill.
Series* Count Hole Depth Year
Type (m)
829001 875002 72 DD 953.40 ?
905001 955014 98 SDG 1,097.50 ?
07RHDD07707RHDD084W7 DD 3,165.95 2007
1
08RHDD08508RHDD110 3 DD 1,082.30 2008
08RHRC09208RHRC105 13 RC 2,110.00 2008
08RHRCD0808RHRCD1079 RCD 2,277.40 2008
6
09RHDD11109RHDD121 9 DD 2,997.44 2009
11RHDD12312RHDD124 2 DD 205.30 2011
72-RHP-1 72-RHP-8 17 PER 429.70 1972
975JS1 975JS9 6 SLUDGE 36.00 1997
ARH001 ARH080 80 RC 6,779.502018
RAHRC001 RAHRC076 69 RC 8,177.00 ?
RAHRCD043RAHRCD068 2 RCD 1,010.80 ?
RHD001 RHD315 11 DD 579.51 ?
RHDU100 RHDU113 18 DD 1,584.85 ?
RHP201 RHP394 113 PER 19,968.2 1998-20
5 01?
RHPD208 RHPD521 92 PD 19,939.9 ?
5
RHPU601 RHPU1653 10 DD 897.60 ?
RHW37 1 RC 170.00 ?
RSH001 RSH077 73 SDG 1,387.20 ?
UGD001 UGD420 409 DD 21,728.2 1998-200
5 1?
UGF790A1 UGF950C9 18 FCE 86.60 1998?
TOTAL 1,132 96,664.5
0
* Not necessarily in complete
numerical
order
The Artemis drilling was undertaken to infill less well drilled areas and to verify some of the older drilling to increase confidence in the original data. The Artemis hole spacing was a nominal 20m x 20m grid pattern with some holes adjusted to properly drill below the Agip metallurgical pit.
Figure 2 shows the positioning of the Artemis drilling relative to the underground workings, the AGIP drop-cut metallurgical sample pit and other mineralized zones.
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Figure 3: Oblique view showing Artemis drilling, underground workings (Yellow) and AGIP drop-cut (Green). Artemis Resource Model = Light Blue. Mineralisation not included in resource model = Dark Blue.
SAMPLING AND ASSAY
There are no references that describe the sampling methods used by the project owners prior to Fox taking over in 2002 and limited reference to the sampling methods used by Fox in their drilling programs could be found. The only reference found was relating to surface diamond holes that were sampled by sending a quarter of the core off for analysis. It can only be presumed that the historic RC samples were riffled.
Artemis 2018 Drilling, Sampling and Assay
All the drilling by Artemis in 2018 was RC and utilised a truck-mounted Schramm 685 RC drilling rig using a 5¼ inch diameter face sampling hammer. The drilling chips were split using a rig mounted cyclone and static cone splitter over one metre intervals to obtain 2-4 kilogram sub-samples to be dispatched to the laboratory for multi-element analysis including Ni, Cu and Co.
All samples were logged by the site geologist with those estimated to be mineralised being dispatched preferentially, with all samples subsequently dispatched and analysed.
Sample recoveries are recorded by the geologist in the field during logging and sampling and the recoveries were consistently very high and all samples were dry with no visual evidence of contamination.
Duplicate samples, reference standards and blanks were regularly inserted in the sample batches during drilling to monitor the quality control of the sampling and chemical analyses.
Independent laboratory ALS (Perth) were used for all chemical analyses. Their sampling and chemical analysis procedures are as follows:
- Samples above 3Kg riffle split.
- Pulverise to 95% passing 75 microns
- 4 Acid Digest ICP-AES Finish (ME-ICP61) -Cu, Ni, Co.
- Ore Grade 4 Acid Digest ICP-AES Finish (ME-OG62)
The laboratory sample preparation and chemical analysis techniques used by ALS are considered appropriate for the style of mineralisation at Whundo.
A Garmin GPSMap62 hand-held GPS was used to initially locate the drillhole collars. Once the holes were complete the drill hole collars were surveyed with a DGPS.
All the drill holes were gyroscopically surveyed down-hole for dip and azimuth at 30 metre intervals.
Topographic control for the resource modelling was created using the drillhole collar data.
DATA VERIFICATION AND QA/QC
Pre Artemis-2018 drilling
The company reviewed a number of memos by Fox that refer to QA/QC results for drilling between 2003 - 2007 and 2008 - 2009. These memos list the number of standards, duplicates and blanks, plot the assays, determine and list the assays outside the limits of the average +/- 2 standard deviations along with limited commentary on the results. It is unclear which of the standards were in-lab or submitted by the company with the sample batches.
The memoranda indicate there were a number of outlier results but overall the results were satisfactory indicating that the sampling and assaying met industry standards at the time of drilling. No drill hole listing was found that linked directly with the memos, however by cross referencing the sample numbers with the assay logs, the drilling indicated in Table 2 (highlighted in Green) were covered by these memos.
Consequently, all the older drilling and results were deleted from the drill hole database and were not considered in the resource estimate.
Artemis 2018 drilling
Artemis regularly inserted blanks, standards and duplicates in the batches of samples submitted to the laboratory for chemical analysis as part of the QAQC protocol. A total of 355 blanks and standards were inserted by Artemis into the drill sample batches.
Graphical plots of the QA/QC samples show only 4 of the samples returned suspicious results where the assay differed markedly from the preferred value, one result gave wildly different results for all three elements, and is almost certainly a result of misnumbering of the sample since all three elements are very much less than the preferred value.
The majority of standards produced results close to their preferred value, two standards consistently produced low results and two Blanks produced high results. If they were all consistently high or low it could be presumed there was a calibration problem within the laboratory. Since the variance is not consistent the most likely explanation is that the preferred values are not correct.
A total of 378 duplicate pairs were inserted by Artemis into the sample batches dispatched for chemical analysis. All but a small number of Ni and Co results had excellent correlations with the few anomalous results still falling within reasonable statistical limits of repeatability.
Bulk Density
Twenty-seven of the Artemis RC drill holes were logged by Wireline Services Group using a down-hole caliper/density logger with the readings averaged over 1 m intervals for a total of 1019 composite values. These insitu bulk densities were then modelled using the same search parameters as the grades. A default bulk density of 3.1 was used in the cells beyond the search radii.
RESOURCE MODEL
The mineralisation was digitised using MineMap© software on cross sections, snapping to the drill intercepts, using a lower cut-off grade where Cu%*0.5 + Ni% >0.5%. This total metal cut-off was chosen to define the mineralised envelope because the copper and nickel are strongly associated with each other in both the disseminated and vein lodes and are both economically recoverable with a weighting reflecting their approximate relative LME metal prices and metallurgical recoveries (Cu=$US6,068/tonne, Ni=$US11,550/tonne on 01/11/2018).
Sample intervals below the 0.5% total metal cutoff were included in the lode wireframe where this internal dilution did not drop the total intersection below 0.5% and where it provided improved lode continuity with adjacent drill intersections of the lode.
The mineralised zone on each cross-section was then linked by a wireframe to produce a solid. The resource model was confined by this wireframe. The grades were interpolated within the wireframe into the model cells using an Inverse Distance Squared (ID2) algorithm.
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Figure 4: Typical cross section +/-5 m along Mine Grid 3960 North looking West showing digitised mineralised zone with resource model and drill holes colour coded by Ni%. Yellow outline = underground workings.
Mine Grid North is orientated on a bearing of 305o Magnetic.
PREVIOUS RESOURCE ESTIMATES
Fox Resources commissioned an in-house resource estimate in 2009 using all the drilling completed to that date that was subsequently verified by Snowden and Associates as compliant with the then current JORC Code (2004). This resource estimate overlapped with the resources reported herein but also included extensions at depth and a small deposit at F Zone to the north-west.
As explained in previous sections of this report, the 2009 resource estimate does not comply with the current JORC Code (2012) for reporting mineral resources, mainly because of the lack of QA/QC details to allow the verification of the quality and accuracy of the drilling, sampling and assays. All the previous mining activity within the precients of the current 2018 modelled resource has been accounted for within the modelled resource.
All previous ore from the Radio Hill underground mine was processed through the Radio Hill plant with a high quality nickel-copper concentrate being produced for export. It is therefore expected that with the refurbishment of the Radio Hill flotation concentrator, the plant could successfully recover fresh sulphide copper and nickel mineralisation as saleable concentrates with metallurgical recoveries of 80%.
LOOKING FORWARD
The shallow, upper portion of Radio Hill could represent an opportunistic mining target within close proximity to the Radio Hill infrastructure. Given additional resource development work and favourable commodity prices this target would be reassessed for future processing.
For further information on this announcement or the Company generally, please visit our website at www.artemisresources.com.au or contact:
Edward Mead
Executive Director
Telephone: +61 407 445 351
Wayne Bramwell
Chief Executive Officer
Telephone: +61 417 953 073
David Tasker
Advisor - Chapter One
Telephone : +61 433 112 936
COMPETENT PERSONS STATEMENT
The information in this announcement that relates to the Radio Hill Project Resource is based on the Radio Hill Project Resource Report written by Mr Philip A Jones, who is a Member of the Australasian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. Mr Jones is a consultant working for Al Maynard & Associates (AM&A) who were engaged by Artemis Resources to prepare the report and undertake the resource estimation for the Radio Hill Project for the period ending 30 November 2018. Mr Jones has sufficient experience that 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.
Mr Jones consents to the inclusion in the announcement of the matters based on his information in the form and context in which it appears.
BACKGROUND INFORMATION ON ARTEMIS RESOURCES
Artemis Resources Limited is an exploration and development company focussed on its large (~2,400 km2) and prospective base, battery and precious metals assets in the Pilbara region of Western Australia. Artemis owns 100% of the 500,000 tpa Radio Hill processing plant and infrastructure, located approximately 35 km south of the city of Karratha.
The Company is evaluating 2004 and 2012 JORC Code compliant resources of gold, nickel, copper-cobalt, PGEs and zinc, all situated within a 40 km radius of the Radio Hill plant.
Artemis have signed Definitive Agreements with Novo Resources Corp. (Novo), which is listed on Canadas TSX Venture Exchange (TSXV:NVO), and pursuant to the Definitive Agreements, Novo has satisfied its expenditure commitment, and earned 50% of gold (and other minerals necessarily mined with gold) in conglomerate and/or paleoplacer style mineralization in Artemis tenements within 100 km of the City of Karratha, including at Purdys Reward (the Gold Rights). The Gold Rights do not include:
(i) gold disclosed in Artemis existing (at 18 May 2017) JORC Code Compliant Resources and Reserves; or
(ii) gold which is not within conglomerate and/or paleoplacer style mineralization; or
(iii) minerals other than gold.
Artemis Mt Oscar tenement is excluded from the Definitive Agreements. The Definitive Agreements cover 36 tenements / tenement applications that are 100% owned by Artemis.
Pursuant to Novos successful earn-in, two 50:50 joint ventures have been formed between Novos subsidiary, Karratha Gold Pty Ltd (Karratha Gold) and two subsidiaries of Artemis (KML No 2 Pty Ltd and Fox Radio Hill Pty Ltd). The joint ventures are managed as one by Karratha Gold with Artemis and Novo contributing to further exploration and any mining of the Gold Rights on a 50:50 basis.
FORWARD LOOKING STATEMENTS AND IMPORTANT NOTICE
This report contains forecasts, projections and forward-looking information. Although the Company believes that its expectations, estimates and forecast outcomes are based on reasonable assumptions it can give no assurance that these will be achieved. Expectations, estimates and projections and information provided by the Company are not a guarantee of future performance and involve unknown risks and uncertainties, many of which are out of Artemis control.
Actual results and developments will almost certainly differ materially from those expressed or implied. Artemis has not audited or investigated the accuracy or completeness of the information, statements and opinions contained in this announcement. To the maximum extent permitted by applicable laws, Artemis makes no representation and can give no assurance, guarantee or warranty, express or implied, as to, and takes no responsibility and assumes no liability for the authenticity, validity, accuracy, suitability or completeness of, or any errors in or omission from, any information, statement or opinion contained in this report and without prejudice, to the generality of the foregoing, the achievement or accuracy of any forecasts, projections or other forward looking information contained or referred to in this report.
Investors should make and rely upon their own enquiries before deciding to acquire or deal in the Companys securities.
Section 1 Sampling Techniques and Data - THIS SECTION REFERS TO THE ARTEMIS 2018 RC DRILLING PROGRAM ONLY
(Criteria in this section apply to all succeeding sections.)
Criteria JORC Code explanation Commentary
Sampling · Nature and quality of · Reverse Circulation
techniqu sampling (RC) drilling was
es ( carried out on the Radio
eg cut channels, random Hill Ni-Cu Project. This
chips, or specific drilling was designed to
obtain drill chip
specialised industry samples from one
standard measurement
tools appropriate to metre intervals, from
the minerals under which a 2-4 kilogram
investigation, such as sub-sample was collected
down for laboratory
multi-element analysis
hole gamma sondes, or including: Ni, Cu,
handheld XRF Co
instruments,
· All samples were analyse
etc). These examples d
should not be taken as using a portable XRF
limiting the broad instrument
meaning of (
sampling. Innovex). Initial
methodology has been to
· Include reference to make a single randomly
measures taken to placed measurement on
ensure sample the drill sample bag.
For more intensive
representivity and the evaluation a minimum of
appropriate calibration 4 measurements at
of any measurement regular intervals around
tools or systems the sample bag will be
used. required. Optimum
sampling time appears to
· Aspects of the be 90 seconds per
determination of measurement. The results
from this were used to
mineralisation that are
Material to the Public prioritised samples
Report. through the assay
laboratory.
· In cases where
industry standard · Mineralised zones were
work has been done this identified visually
would be relatively during field logging,
simple and sample intervals
( selected by the
eg reverse circulation supervising
drilling was used to geologist.
obtain 1 m samples from
which 3 kg was · Samples from each metre
were collected through a
pulverised to produce a rig-mounted cyclone and
30 g charge for fire split using a
assay). In other cases rig-mounted static cone
more explanation may be splitter.
required, such as where
there is coarse gold · To ensure representivity
that has inherent , field duplicates were
sampling problems. taken and submitted for
Unusual commodities or analysis.
mineralisation types (eg
submarine nodules) may
warrant disclosure of
detailed
information.
Drilling · Drill type (eg core, · Reverse Circulation
techniqu reverse circulation, drilling at Radio Hill
es open-hole hammer, was completed by a
rotary air blast, truck-mounted Schramm
auger, Bangka, sonic, 685 RC drilling rig
using a 5¼ inch diameter
etc) and details (eg core face sampling
diameter, triple or hammer.
standard tube, depth of
diamond tails,
face-sampling bit or
other type, whether
core is oriented and if
so, by what method,
etc).
Drill · Method of recording · Sample recoveries are
sample and assessing core and recorded by the
recovery chip sample recoveries geologist in the field
and results during logging and
assessed. sampling.
· Measures taken to maxim· Measures taken to maximi
ise se
sample recovery and sample recovery include
ensure representative SOPs to keep holes dry
nature of the and
samples.
pressurised and to minimis
· Whether a relationship e
exists between sample dust loss.
recovery and grade and · Visual assessments are
whether sample bias may made for recovery,
have occurred due to moisture, and possible
preferential loss/gain contamination.
of fine/coarse
material.
· A cyclone and static
cone splitter were used
to ensure representative
sampling and were
routinely inspected and
cleaned.
· Sample recoveries
during drilling
completed by Artemis
were highly
satisfactory, and all
samples were dry.
· Insufficient data
exists at present to
determine whether a
relationship exists
between grade and
recovery. This will be
assessed once a
statistically
representative amount of
data is
available.
Logging · Whether core and chip · All drill chip samples
samples have been are geologically logged
geologically and at 1m intervals from
surface to the bottom of
geotechnically logged to each
a level of detail to
support appropriate drillhole. It is
Mineral Resource considered that
estimation, mining geological logging is
studies and completed at an adequate
metallurgical level to allow
studies. appropriate future
Mineral Resource
· Whether logging is estimation.
qualitative or
quantitative in nature. · Geological logging is
Core (or considered
semi-quantitative due to
costean, channel, etc) the limited geological
photography. information available
from
· The total length and the Reverse Circulation
percentage of the method of drilling.
relevant intersections
logged.
· All RC drillholes comple
ted by Artemis during the
current program have
been logged in
full.
Sub-sampl· If core, whether cut · A cyclone and static
ing or sawn and whether cone splitter were used
techniqu quarter, half or all to ensure representative
es and core sampling, and were
sample taken. routinely inspected and
preparat cleaned.
ion · If non-core, whether
riffled, tube sampled, · The RC drilling rig was
rotary split, equipped with a
rig-mounted cyclone and
etc and whether sampled static cone splitter,
wet or which provided one bulk
dry. sample of approximately
20-30 kilograms, and a
· For all sample types, representative
the nature, quality and sub-sample of
appropriateness of the approximately 2-4
sample preparation kilograms for every
technique.
metre drilled.
· Quality control · The sample size of 2-4
procedures adopted for kilograms is considered
all sub-sampling stages to be appropriate and
to representative of the
grain size and
maximise representivity o
f mineralisation style of
samples. the
deposit.
· Measures taken to
ensure that the · The majority of samples
sampling is were dry. Where wet
representative of the sample was encountered,
in situ material the cleanliness of the
collected, including cyclone and splitter
for instance results were closely monitored
for field by the supervising
duplicate/second-half geologist, and
sampling. maintained to a
satisfactory level to
· Whether sample sizes avoid contamination and
are appropriate to the ensure representative
grain size of the samples were being
material being collected.
sampled.
· Duplicate samples were
collected and submitted
for analysis. Reference
standards inserted
during
drilling.
Quality · The nature, quality · ALS (Perth) was used
of and appropriateness of for all analysis of
assay the assaying and drill samples submitted
data laboratory procedures by Artemis. The
and used and whether the laboratory techniques
laborato technique is considered below are for all
ry partial or samples submitted to ALS
tests total. and are considered
appropriate for the
· For geophysical tools, style of
spectrometers,
mineralisation defined
handheld XRF within the Radio Hill
instruments, Project
area:
etc, the parameters used
in determining the o Samples above 3 Kg
analysis including riffle
instrument make and split.
model, reading times,
calibrations factors o Pulverise to 95%
applied and their passing 75
derivation, microns
etc.
o 4 Acid Digest ICP-AES
· Nature of quality Finish (ME-ICP61) - Cu,
control procedures Ni,
adopted Co.
(
eg standards, blanks, o Ore Grade 4 Acid Digest
duplicates, external ICP-AES Finish (ME-OG62)
laboratory checks) and
whether acceptable
levels of accuracy · Standards were used for
( external laboratory
ie lack of bias) and checks by
precision have been Artemis.
established.
· Duplicates were used
for external laboratory
checks by
Artemis.
· Portable XRF (pXRF)
analysis was completed
using
Innovex units. XRF
analysis was completed
on the single
metre sample bulk drill
ample retained on site.
· Portable XRF results
are considered
semi-quantitative and
were only used as a
guide to
mineralised zones and
sampling.
Verificat· The verification of · At least two company
ion of significant personnel verify all
sampling intersections by either significant
and independent or results.
assaying alternative company
personnel. · All geological logging
and sampling information
· The use of twinned is completed firstly on
holes. to paper logs before
being transferred to
· Documentation of Microsoft Excel
primary data, data spreadsheets.
entry procedures, data
verification, data
storage (physical and · Physical logs and
electronic) sampling data are
protocols. returned to the head
office for scanning and
· Discuss any adjustment storage.
to assay
data.
· No adjustments to the
assay data were
considered
necessary.
Location · Accuracy and quality · A Garmin GPSMap62
of data of surveys used to hand-held GPS was used
points locate drill holes to define the location
(collar and down-hole of the
surveys), trenches,
mine workings and other drillhole collars.
locations used in Standard practice is for
Mineral Resource the GPS to be left at
estimation. the site of the collar
for a period of 5
· Specification of the minutes to obtain a
grid system steady reading. Collar
used. locations are surveyed
with a DGPS.
· Quality and adequacy
of topographic
control. · Downhole surveys were
captured at 30
metre intervals for the dr
illholes
completed by Artemis.
· The grid system used
for all Artemis drilling
is GDA94 (MGA 94 Zone
50)
· Topographic control is
obtained from surface
profiles created by
drillhole collar data.
Data · Data spacing for · Current drillhole spacin
spacing reporting of g is variable and
and Exploration dependent on specific
distribu Results. geological, and
tion geophysical targets, and
· Whether the data access requirements for
spacing and each
distribution is
sufficient to establish drillhole.
the degree of · No sample compositing
geological and grade has been used for
continuity appropriate drilling completed by
for the Mineral Artemis. All results
Resource and Ore reported are the result
Reserve estimation of 1
procedure(s) and
classifications metre downhole sample
applied. intervals.
· Whether sample
compositing has been
applied.
Orientati· Whether the · Drillholes were located
on of orientation of sampling in order to intersect
data in achieves unbiased the target at an angle
relation sampling of possible perpendicular to strike
to structures and the direction. As the target
geologic extent to which this is structures were
al known, considering the considered to be steep
structur deposit to moderately dipping
e type. and moderately plunging,
most Artemis
· If the relationship
between the drilling drillholes were angled at
orientation and the -55 or -60 degrees.
orientation of key
mineralised structures
is considered to have
introduced a sampling
bias, this should be
assessed and reported
if
material.
Sample · The measures taken to · The chain of custody is
security ensure sample managed by the
security. supervising geologist
who places calico sample
bags in
polyweave sacks. Up to 5
calico sample bags are
placed in each sack.
Sacks from individual
holes were placed into
bulk bags, each bulk bag
is clearly
labelled with: Artemis
Resources Ltd, Address
of laboratory, Sample ID
range
· Samples were delivered
by Artemis personnel to
the transport company in
Karratha on pallets.
· The transport company
then delivers the
samples directly to the
laboratory.
Audits · The results of any · Data is validated upon
or audits or reviews of up-loading into the
reviews sampling techniques and master database. Any
data. validation issues
identified are
investigated prior to
reporting of
results.
Section 2 Reporting of Exploration Results - THIS SECTION REFERS TO THE ARTEMIS 2018 RC DRILLING PROGRAM ONLY
(Criteria listed in the preceding section also apply to this section.)
Criteria JORC Code explanation Commentary
Mineral · Type, reference · RC drilling by Artemis
tenement name/number, location was carried out on
and and ownership M47/161 - 100% owned by
land including agreements Artemis Resources Ltd.
tenure or material issues This tenement forms a
status with third parties part of a broader
such as joint tenement package that
ventures, comprises the West
partnerships, Pilbara
overriding royalties, Project.
native title
interests, historical · This tenement is in good
sites, wilderness or standing and no known
national park and impediments exist (see
environmental map provided in this
settings. report for
location).
· 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.
Explorati· Acknowledgment and · The most significant
on done appraisal of work to have been
by exploration by other completed at Radio Hill
other parties. is by Fox Resources, who
parties mined the deposit from
2004-2008.
Geology · Deposit type, · The Radio Hill project
geological setting and covers the historic Radio
style of Hill Ni-Cu
mineralisation. orebody hosted within a
layered mafic intrusive
body.
· Sulphide mineralisation p
redominantly consists of
Pyrrhotite, Pentlandite and
Chalcopyrite.
Drill · A summary of all · Collar information for
hole information material all
Informat to the understanding
ion of the exploration drillholes reported is
results including a provided in the body of
tabulation of the this
following information report.
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 · In reporting · All intervals reported
aggregat Exploration Results, are composed of 1
ion weighting averaging
methods techniques, maximum metre down hole intervals
and/or minimum grade and are therefore length
truncations weighted.
(
eg cutting of high
grades) and cut-off · No upper or lower
grades are usually cut-off grades have been
Material and should be used in reporting
stated. results.
· Where aggregate · No metal equivalent
intercepts incorporate calculations are quoted
short lengths of high for exploration
grade results and results.
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.
Relations· These relationships · True widths of mineralisa
hip are particularly tion
between important in the have not been calculated
reporting of for this report, and as
mineralis Exploration such all intersections
ation Results. reported are down-hole
widths thicknesses and
and · If the geometry of compensated for in 3D for
intercep the the resource
t
lengths mineralisation with modelling.
respect to the drill · Due to the moderately to
steeply dipping nature of
hole angle is known, the
its nature should be
reported. mineralised zones, it is
expected that true
· If it is not known thicknesses will be less
and only the down hole than the reported
lengths are reported, down-hole
there should be a thicknesses.
clear statement to
this effect
(
eg down hole length,
true width not
known).
Diagrams · Appropriate maps and · Appropriate maps and
sections (with scales) sections are available in
and tabulations of the body of this
intercepts should be report.
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.
Balanced · Where comprehensive · Reporting of results in
reportin reporting of all this report is considered
g Exploration Results is balanced.
not practicable,
representative
reporting of both low
and high grades and/or
widths should be
practiced to avoid
misleading reporting
of Exploration
Results.
Other · Other exploration · Targeting for the RC
substant data, if meaningful drilling completed by
ive and material, should Artemis was based on
explorat be reported including compilation of historic
ion (but not limited to): mining and exploration
data geological data
observations;
geophysical survey
results; geochemical · There is no other
survey results; bulk relevant data to report
samples - size and on.
method of treatment;
metallurgical test
results; bulk density,
groundwater,
geotechnical and rock
characteristics;
potential deleterious
or contaminating
substances.
Further · The nature and scale · The results at the Radio
work of planned further Hill Ni-Cu project
work indicate further drilling
( to infill drilling by
eg tests for lateral earlier companies and
extensions or depth verify the accuracy of
extensions or this drilling and
large-scale step-out sampling as well as
drilling). elsewhere on the tenement
to extend the resources
· Diagrams clearly is
highlighting the areas warranted.
of possible
extensions, including
the main geological
interpretations and
future drilling areas,
provided this
information is not
commercially
sensitive.
Section 3 Estimation and Reporting of Mineral Resources
(Criteria listed in section 1, and where relevant in section 2, also apply to this section.)
Criteria JORC Code explanation Commentary
Database · Measures taken to · Data used as received
integrit ensure that data has but checked for Hole ID
y not been corrupted by, and sample interval
for example, errors by
transcription or keying
errors, between its MineMap © software. Some
initial collection and RC sample assays in
its use for Mineral database were checked
Resource estimation against laboratory spread
purposes. sheets and no errors were
found.
· Data validation
procedures · The historic Fox data is
used. stored in an SQL database
front ended by
proprietary software with
built in and customized
validation procedures.
The Artemis data is
exported from
self-validating drill
hole log spreadsheets into
Micromine
and validated via Micromin
e
built in validation
procedures. Additional
validation is by visual
inspection of the data in
3D.
Site · Comment on any site · Two representatives from
visits visits undertaken by AM&A (A. Maynard & P.
the Competent Person Jones) have visited the
and the outcome of site to observe the
those logistics and geology
visits. recently in preparation
of this report. Most
· If no site visits have recently the author
been undertaken visited the Radio Hill
indicate why this is mine on 20 July 2018.
the
case.
Geologica· Confidence in (or · The geological
l conversely, the interpretation is based
interpre uncertainty on a relatively dense
tation grid of drill holes and
of ) the geological experience gained by
interpretation of the previous workers during
mineral underground mining so the
deposit. geological interpretation
is considered to be
· Nature of the data reliable.
used and of any
assumptions · There are no other
made. reasonable geological
interpretations based on
· The effect, if any, of the available data and
alternative information.
interpretations on
Mineral Resource · The resource model was
estimation. confined by wireframes
based on the drill
· The use of geology in intercept grades and
guiding and controlling geological
Mineral Resource interpretation.
estimation.
· The mineralisation is
· The factors affecting controlled by the
continuity both of geology, i.e.
grade and
geology. lithologies and
structures, with
interpretations supported
by
drillhole data, previous
mining activities and
outcrop within existing
open pits.
Dimension· The extent and · The mineralisation is
s variability of the not properly closed off
Mineral Resource along strike or down
expressed as length dip.
(along strike or
otherwise), plan width, · The modelled portion of
and depth below surface the deposit is 250m long
to the upper and lower x 100m wide while the
limits of the Mineral total deposit as drilled
Resource. by earlier companies is
approximately 1,250m long
x 200m
wide.
Estimatio· The nature and · The resource modelling wa
n and appropriateness of the s done with
estimation technique(s)
modelling applied and key MineMap © software by
techniqu assumptions, incl
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