REG - Artemis Resources Ld - Ultrafine Soil Sampling program at Titan Gold
04/04/2023 07:30
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RNS Number : 2924V Artemis Resources Limited 04 April 2023
Artemis Resources Limited
("Artemis" or the "Company")
(ASX/AIM: ARV, FRA: ATY, US: ARTTF)
Ultrafine Soil Sampling program confirms Titan Gold prospect and defines
elevated copper in the Greater Carlow Project Area
Highlights:
· Elevated gold in soils with assay results up to 101.3 ppb gold have
been defined at the Titan gold prospect over an area of 750 m by 550 m some
1.8 km northeast of the Carlow Mineral Resource.
· Gold anomaly corresponds with elevated arsenic over a similar area.
· Elevated soil assays align with 1.25 g/t gold rock sample collected
from banded chert at the time of soil program.
· Further ground truthing including mapping, rock sampling and
geophysics to commence in the coming weeks to further confirm prospectivity of
Titan gold prospect.
· Elevated copper <100 ppm identified just off Europa gravity
anomaly, Titan gold prospect and east along strike from the Carlow Mineral
Resource.
· JORC Exploration Target for Carlow Castle and exploration strategy
within Greater Carlow being finalised for release by mid-April.
Artemis Resources Limited (ASX: ARV) is pleased to advise that results of the
Ultrafine Fraction (UFF) soil program within the Greater Carlow tenement
E47/1797, 35 km east of Karratha have been received and interpreted defining a
strong coincident gold (Au) and arsenic (As) anomaly over the Titan (Titan)
gold prospect (Figure 1). Titan is located 1.8 km northeast of the Carlow
gold-copper-cobalt Mineral Resource (704,000 Koz Gold Eq, refer to RNS of 13
October 2022(1)).
A total of 432 UFF samples were collected from three locations within the
immediate vicinity of the Regal Thrust and associated splay structures with
sampling occurring in late 2022 along with a small extension program in
February 2023.
Labwest in conjunction with the CSIRO have developed the Ultrafine geochemical
analysis as a method of detecting anomalies against a normalised background by
completing a full analytical digest via a -2 micron clay fraction. Ultrafine
soil particles such as clays and iron oxides, have more surface area which can
bind gold and other metals that move through the environment, enabling the
ultrafine particles to effectively trap and hold geochemical signatures of
bedrock covered by transported cover while removing the effect of spikey data.
The approach has been shown to be effective with cover up to 20m, which makes
it an ideal method for the Greater Carlow project.
The approach has been shown to be effective with cover up to 20 m, which makes
it an ideal method for the Greater Carlow project.
Figure 1: UFF Soil location map displaying Gold range and contours in ppb.
During the UFF soil sample program numerous prospector digs were noted in the
vicinity of the Titan prospect resulting in two rock chip samples from a
banded chert outcrop being collected, as announced in the December 2022
Quarterly Report. One of the two samples collected (TIT002) recorded a gold
grade of 1.25 g/t Au. Details of the rock samples are recorded in Table 1.
Table 1: Titan gold prospect rock sample details
Sample Id Easting (MGA94) Northing (MGA94) Au (g/t) Description
TIT002 504927 7699709 1.25 Banded Chert. Highly Silicified
Anomalous copper in the order of 100 ppm was also recorded along the
north-western margin of the Europa target where basement rock begins to
sub-crop (Figure 2). The interpretation for the lack of signal over the main
Europa target has been interpreted to be a result of a modern drainage system
depositing fresh sediments over the main target area. Artemis believes the
recently deposited sediments are masking the geochemical signature resulting
in a benign geochemical response.
The Europa target is located approximately 1.7 km south-west along strike of
the Carlow deposit. It is situated within a structurally bound gravity high on
the southern side of the Regal Thrust within the prospective Roebourne
Complex. Its structural and gravity signature are of a similar nature to the
Carlow deposit and has been identified by Artemis as requiring additional
exploration focus.
On the eastern side of the project area, immediately north of the Marillion EM
target anomalous copper has also been identified with peak Copper in soils of
258 ppm (Figure 2). This occurrence is situated near the tenement boundary and
is likely associated with the Gold-Copper mineralisation identified by Novo
Resource Corp at their Morto Largo prospect.
Figure 2: UFF Soil location map displaying Copper range and contours in ppm
Next Steps
Mapping and rock sampling will commence at Titan in April, followed by
geophysics to better understand the controls of mineralisation and to
determine if the mineralised trend continues undercover. It was noted during
the soil sample program that the southern portion of the Titan prospect was
covered in a modern drainage line like Europa, and this may be masking any
geochemical signal.
Artemis plans to further assess the potential for mineralisation under cover
and will announce to the market its exploration plans in the Greater Carlow
project area in the coming weeks.
Table JORC Code, 2012 Edition
Section 1 Sampling Techniques and Data
(Criteria in this section applies to all succeeding sections)
Criteria JORC Code explanation Commentary
Sampling techniques · Nature and quality of sampling (eg cut channels, random chips, or · Soil samples were collected in the field by removing any surface
specific specialised industry standard measurement tools appropriate to the vegetation and topsoil and then digging down to the horizon change (generally
minerals under investigation, such as down hole gamma sondes, or handheld XRF 10 - 15 cm) from which the sample was taken.
instruments, etc). These examples should not be taken as limiting the broad
meaning of sampling. · Samples for UFF analysis were sieved at the sample site in the field
to -2 mm and approximately 350 g of material was collected and bagged with a
· Include reference to measures taken to ensure sample representivity unique sample identification number.
and the appropriate calibration of any measurement tools or systems used.
· Each sample soil type was logged, and coordinates recorded against
· Aspects of the determination of mineralisation that are Material to the sample number with a hand held GPS receiver.
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 techniques · Drill type (eg core, reverse circulation, open-hole hammer, rotary · No drilling undertaken as part of this program.
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 recovery · Method of recording and assessing core and chip sample recoveries and · No drilling undertaken as part of this program.
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 · Whether core and chip samples have been geologically and · No drilling undertaken as part of this program Soil Sample type was
geotechnically logged to a level of detail to support appropriate Mineral recorded, and coordinates of each sample site recorded against unique sample
Resource estimation, mining studies and metallurgical studies. identification number.
· 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 · UFF+ soil sampling is used to obtain an ultrafine fraction of the
taken. soil (-2µm), this is analysed to identify elemental concentrations.
· If non-core, whether riffled, tube sampled, rotary split, etc and · Soil samples are collected using a steel shovel, these samples are
whether sampled wet or dry. sieved passing -2 mm in the field to produce a nominal 350 g field sample,
this sample is processed using the CSIRO UFF+ workflow to produce an ultrafine
· For all sample types, the nature, quality and appropriateness of the fraction to analyse for gold and multi-elements. The sample preparation
sample preparation technique. employed by LabWest has been developed in collaboration with CSIRO.
· 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 · Samples were submitted to Labwest for processing and analysis with
laboratory procedures used and whether the technique is considered partial or standards being inserted by the company in-house.
total.
· LabWest is a commercial independent certified laboratory in Perth,
· For geophysical tools, spectrometers, handheld XRF instruments, etc, Western Australia.
the parameters used in determining the analysis including instrument make and
model, reading times, calibrations factors applied and their derivation, etc. · The -2 µm fraction of the soil samples were analysed for Ag, Al, As,
Au, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Fe, Ga, Ge, Hf, Hg, In, K, La, Li,
· Nature of quality control procedures adopted (eg standards, blanks, Recent news on Artemis Resources
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