REG - Artemis Resources Ld - Gold Mineralised Intrusion at Lulu Creek confirmed
18/05/2023 07:00
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RNS Number : 8605Z Artemis Resources Limited 18 May 2023
Artemis Resources Limited
("Artemis" or the "Company")
(ASX/AIM: ARV, FRA: ATY, US: ARTTF)
Geological Review Confirms Gold Mineralised Intrusion at Lulu Creek
Highlights:
· Lulu Creek lies some 20 km to the west of Artemis's Carlow Castle
deposit and forms part of the prospective Greater Carlow area.
· Historical geology and data review confirms that the 2020 drill
program intercepted gold mineralisation within a quartz diorite intrusion.
· Gold mineralisation is associated with disseminated sulphide and
quartz veins with elevated silver, arsenic, molybdenum, lead and bismuth.
· Drilling has defined the intrusion over a 2 km strike length with
elevated gold in rock chips over a strike length of 4 km.
· Geochemistry indicates possible relationship to prospective
Sanukitoid granitoids as identified by De Grey Mining in the Mallina Basin.
· Recent work by Geological Survey of Western Australia (GSWA)
indicates the Lulu Creek area is prospective to 'Sanukitoid like
Intrusions'(1).
· Induced Polarisation (IP) survey to commence in late May to help
identify disseminated sulphides at depth.
(1) Lu, Yongjun; GSWA Webinar Series - Pilbara Craton scientific advances and
implications for mineral systems. 24(th) February 2023.
https://www.dmp.wa.gov.au/Geological-Survey/GSWA-Webinar-series-27727.aspx
(https://www.dmp.wa.gov.au/Geological-Survey/GSWA-Webinar-series-27727.aspx)
Luke Meter, Exploration Manager, commented: "We have a new understanding of
the importance of intrusion related gold in the Pilbara, including the
identification of Sanukitoid like intrusions by the GSWA in the vicinity of
the Karratha Granodiorite, some 2.5 km from Lulu Creek. The significance of
the historic gold mineralisation therefore becomes apparent. With the Lulu
Creek reconnaissance drill holes displaying similar grade and scale to De
Grey's Diucon deposits, the potential upside for Lulu Creek is appreciable."
Lulu Creek Prospect
Lulu Creek lies some 20 km to the west of Artemis's Carlow Castle deposit and
forms part of the prospective Greater Carlow area. It was previously known as
Patterson's Hut and Carlow West and was initially identified in 2018 via a
regional soils and rock chip program (Refer ASX announcement 05/11/2018)
defining an area of interest over 4 km in an east-northeast orientation.
Subsequent mapping and rock chip sampling identified gold associated with
quartz veins and gossans, and in an unclassified weathered unit with a light
covering of transported sands and gravels.
Figure 1: Lulu Creek location map with respect to Carlow Castle
In 2020, Artemis completed 126 RC drill holes with an average hole depth of 20
m and a maximum hole depth of 50 m. The drill program was technically
successful identifying numerous low-grade zones of gold mineralisation
associated with disseminated sulphides and quartz veins within a 2 km
east-northeast trending quartz diorite intrusion (Figure 2).
Significant intercepts from the drill program (refer ASX announcement
18/09/2020) include:
· 2 m @ 1.62 g/t Au from 34 m in CWRC006
· 1 m @ 4.89 g/t Au and 13.7 g/t Ag from 24 m in CWRC011
· 1 m @ 1.15 g/t Au from 9 m in CWRC017
Figure 2: Lulu Creek Intrusion displaying 0.3 g/t metre gram contours
Additional low grade gold composite intercepts include:
· 8 m @ 0.40 g/t Au from 42 m in CWRC005
· 3 m @ 0.72 g/t Au from 9 m in CWRC008
· 3 m @ 0.31 g/t Au from 24 m in CWRC050
· 9 m @ 0.17 g/t Au from 15 m in CWRC088
At the time of the 2020 drill program, the significance of intrusion related
gold within the Pilbara was not fully appreciated with resources being
directed to more advanced projects within the company portfolio.
Following the conclusion of the 2022 drill season, a comprehensive exploration
focused strategic review was completed across Artemis tenure re-identifying
the potential of the Lulu Creek prospect. Drill chips from the 2020 RC program
were re-logged and assays re-processed to generate a new interpretation.
Coincidently, work completed by the GSWA identified the presence of
'Sanukitoid like' intrusive bodies around the Karratha (granitoid) Dome 2.5 km
north-west of the Lulu Creek intrusion.
Lulu Creek is also situated along the margin of the 90 km long Regal Thrust
who's splay and secondary structures host numerous mineral occurrences
including the Company's Carlow Castle gold-copper-cobalt deposit.
Next Steps
Artemis has engaged Southern Geoscience (SGC) to undertake an Induced
Polarisation (IP) geophysics survey over the Lulu Creek intrusion. Initially
13 north-south trending lines spaced on 50 m or 100 m intervals will be
collected over the prospective intrusion for a total of 13-line kilometres of
surveying. The survey is expected to commence late May and will be used to
help identify disseminated sulphides.
In addition to the IP survey, a mapping and reconnaissance program will be
conducted to identify extensions and new unidentified intrusions within the
vicinity of Lulu Creek. Evidence within the Pilbara to date indicates that
clusters of intrusions localise together as small apophyses making the area
prospective for more discoveries.
For further information on the Company, please visit
www.artemisresources.com.au (http://www.artemisresources.com.au) or contact:
Artemis Resources Limited
Guy Robertson Guy.robertson@artemisresources.com.au
WH Ireland Limited (Nominated Adviser and Broker)
Antonio Bossi / James Bavister (Corporate Finance) Tel: +44 20 7220 1666
Competent Person's Statement
The information in this report that relates to exploration results was
prepared by Mr Luke Meter, a Competent Person who is a member of the
Australasian Institute of Geoscientists (MAIG) and Australasian Institute of
Mining and Metallurgy (MAusIMM). Mr Meter is employed by Artemis Resources as
Exploration Manager. Mr Meter has sufficient experience that is relevant to
the style of mineralisation and type of deposit under consideration and to the
activity being 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". Mr Meter consents to the inclusion in
this report of the matters based on his information in the form and context in
which it appears.
About Artemis Resources
Artemis Resources (ASX/AIM: ARV; FRA: ATY; US: ARTTF) is a Perth-based
exploration and development company, led by an experienced team that has a
singular focus on delivering shareholder value from its Pilbara projects - the
Greater Carlow project in the West Pilbara and the Paterson Central
exploration project in the East Pilbara.
JORC Code, 2012 Edition
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria JORC Code explanation Commentary
Sampling techniques · Nature and quality of sampling (eg cut channels, random chips, or · Reverse circulation drilling was used to obtain 1 m samples.
specific specialised industry standard measurement tools appropriate to the
minerals under investigation, such as down hole gamma sondes, or handheld XRF · Samples were collected on a 1 m basis and stockpiled.
instruments, etc). These examples should not be taken as limiting the broad
meaning of sampling. · Sample bulks were spear sampled and 3m composites were formed.
· Include reference to measures taken to ensure sample representivity and · The single metre samples of any composite sample reporting greater
the appropriate calibration of any measurement tools or systems used. than 0.1 g/t Au were retrieved and assayed.
· Aspects of the determination of mineralisation that are Material to the · All samples were pulverized produce a 50 g charge for fire assay.
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 techniques · Drill type (eg core, reverse circulation, open-hole hammer, rotary air · Reverse Circulation drilling by KTE Drilling.
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 recovery · Method of recording and assessing core and chip sample recoveries and · Drilling recoveries for Reverse circulation drilling were excellent,
results assessed. with no ground water intersected.
· 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 · Whether core and chip samples have been geologically and geotechnically · Artemis Reverse Circulation drilling has been logged,
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 techniques and sample preparation · If core, whether cut or sawn and whether quarter, half or all core · The RC drilling rig was equipped with a rig-mounted cyclone and static
taken. cone splitter, which provided one bulk sample of approximately 20-30 kg, and a
representative sub-sample of approximately 2-4 kg for every metre drilled.
· If non-core, whether riffled, tube sampled, rotary split, etc and
whether sampled wet or dry. · The sample size of 2-4 kg is appropriate and representative of the
grain size and mineralisation style of the deposit.
· 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 of assay data and laboratory tests · The nature, quality and appropriateness of the assaying and laboratory · ALS (Perth) were used for all analysis of drill samples submitted by
procedures used and whether the technique is considered partial or total. Artemis. The laboratory techniques below are for all samples submitted to ALS
and are considered appropriate for the style of mineralisation defined within
· For geophysical tools, spectrometers, handheld XRF instruments, etc, the Carlow Castle Project area:
the parameters used in determining the analysis including instrument make and
model, reading times, calibrations factors applied and their derivation, etc. · Samples above 3 kg riffle split.
· Nature of quality control procedures adopted (eg standards, blanks, · Pulverise to 95% passing 75 microns.
duplicates, external laboratory checks) and whether acceptable levels of
accuracy (ie lack of bias) and precision have been established. · 50 g Fire Assay (Au-AA26) with ICP finish - Au.
· 4 Acid Digest ICP-AES Finish (ME-ICP61) - Ag, Al, As, Ba, Be, Bi, Ca,
Cd, Co, Cr, Cu, Fe, Ga, K, La, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Sc, Sr, Th,
Ti, Tl, U, V, W, Zn.
· Ore Grade 4 Acid Digest ICP-AES Finish (ME-OG62)
· Standards were used for external laboratory checks by Artemis.
· Duplicates were used for external laboratory checks by Artemis
Verification of sampling and assaying · The verification of significant intersections by either independent or · Electronic data capture, storage, and transfer as .csv. Routine QC
alternative company personnel. checks performed by contractor and independent geophysical consultant. Data
were found to be of high quality and in accordance with contract
· The use of twinned holes. specifications.
· Documentation of primary data, data entry procedures, data · Laboratory standards and blank samples were inserted at regular
verification, data storage (physical and electronic) protocols. intervals and some duplicate samples were taken for QC checks.
· Discuss any adjustment to assay data.
Location of data points · Accuracy and quality of surveys used to locate drill holes (collar and · A Garmin GPSMap62 hand-held GPS was used to define the location of the
down-hole surveys), trenches, mine workings and other locations used in drill hole collars. Standard practice is for the GPS to be left at the site of
Mineral Resource estimation. the collar for a period of 5 minutes to obtain a steady reading. Collar
locations are considered to be accurate to within 5 m.
· Specification of the grid system used.
· Zone 51 (GDA 94).
· Quality and adequacy of topographic control.
Data spacing and distribution · Data spacing for reporting of Exploration Results. · Current drill hole spacing is variable and dependent on specific
geological, and geochemical targets.
· Whether the data spacing and distribution is sufficient to establish
the degree of geological and grade continuity appropriate for the Mineral · All holes were initially composited over 3m intervals via spearing
Resource and Ore Reserve estimation procedure(s) and classifications applied. method. Samples from drill holes CWRC001 to CWRC011 were additionally sampled
at 1 metre intervals. Additional samples were selectively assayed over 1 metre
· Whether sample compositing has been applied. intervals if initial composite assay was over 0.3 g/t Au up to drill hole
CWRC017..
Orientation of data in relation to geological structure · Whether the orientation of sampling achieves unbiased sampling of · Drill holes were designed to be perpendicular to the strike of sheared
possible structures and the extent to which this is known, considering the ultramafic. Due to the structural and geological complexity of the area, it is
deposit type. currently unknown what orientation mineralisation strikes.
· 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 · The measures taken to ensure sample security. · The chain of custody is managed by the supervising geologist who places
calico sample bags in polyweave sacks. Up to 10 calico sample bags are placed
in each sack. Each sack is clearly labelled with:
o Artemis Resources Ltd
o Address of laboratory
o Sample range
· Samples were delivered by Artemis personnel to the transport company in
Karratha and shrink wrapped onto pallets.
· The transport company then delivers the samples directly to the
laboratory.
Audits or reviews · The results of any audits or reviews of sampling techniques and data. · Data is validated upon up-loading into the master database. Any
validation issues identified are investigated prior to reporting of results.
· No external audits were undertaken.
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
Criteria JORC Code explanation Commentary
Mineral tenement and land tenure status · Type, reference name/number, location and ownership including · Lulu Creek is located in exploration license E47/1746 held by KML No 2
agreements or material issues with third parties such as joint ventures, Pty Ltd a subsidiary company of Artemis Resources Limited. The tenement is in
partnerships, overriding royalties, native title interests, historical sites, good standing
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 done by other parties · Acknowledgment and appraisal of exploration by other parties. · No previous exploration
Geology · Deposit type, geological setting and style of mineralisation. · Style of mineralisation is still to be confirmed but is currently being
interpreted as a combination of intrusion related and orogenic.
Drill hole Information · A summary of all information material to the understanding of the · Drill hole information was reported to the ASX on 18/09/2020: 'Diamond
exploration results including a tabulation of the following information for Drilling Underway at Carlow Castle.' In this release Lulu Creek Prospect is
all Material drill holes: recorded as Carlow West Prospect.
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 methods · In reporting Exploration Results, weighting averaging techniques, · All intervals reported are either 3 m composites greater than 0.3 g/t
maximum and/or minimum grade truncations (eg cutting of high grades) and Au or 1 m down hole intervals from Reverse Circulation drilling.
cut-off grades are usually Material and should be stated.
· No upper or lower cut-off grades have been used in reporting results.
· Where aggregate intercepts incorporate short lengths of high grade
results and longer lengths of low grade results, the procedure used for such · No metal equivalent calculations are used in this report.
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 between mineralisation widths and intercept lengths · These relationships are particularly important in the reporting of · True widths of mineralisation have not been calculated for this report,
Exploration Results. and as such all intersections reported are down-hole thicknesses.
· 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 · Appropriate maps and sections (with scales) and tabulations of · Appropriate plans are shown in the text
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.
Balanced reporting · Where comprehensive reporting of all Exploration Results is not · Reporting of results in this report is considered balanced.
practicable, representative reporting of both low and high grades and/or
widths should be practiced to avoid misleading reporting of Exploration
Results.
Other substantive exploration data · Other exploration data, if meaningful and material, should be reported · Geochemical sampling and geological mapping were completed by Artemis
including (but not limited to): geological observations; geophysical survey and reported to the ASX on 05/11/2018: 'Three New Gold Discoveries in the West
results; geochemical survey results; bulk samples - size and method of Pilbara. In this announcement Lulu Creek prospect is refer to as the Patterson
treatment; metallurgical test results; bulk density, groundwater, geotechnical Hut prospect.
and rock characteristics; potential deleterious or contaminating substances.
Further work · The nature and scale of planned further work (eg tests for lateral · Review of work to date.
extensions or depth extensions or large-scale step-out drilling).
· Geophysical IP surveys.
· Diagrams clearly highlighting the areas of possible extensions,
including the main geological interpretations and future drilling areas, · Mapping and reconnaissance.
provided this information is not commercially sensitive.
· Potential deep drilling.
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