Wrap Text
Copper Discovery in First Drill Hole to test SkyTEM Anomaly at Okiep, Northern Cape
Orion Minerals Limited
Incorporated in the Commonwealth of Australia
Australian Company Number 098 939 274
ASX share code: ORN
JSE share code: ORN
ISIN: AU000000ORN1
Copper Discovery in First Drill Hole to test SkyTEM Anomaly at Okiep, Northern Cape
Previously unknown copper mineralised mafic intrusive discovered following ground mapping and
scout drilling to test coincident EM and magnetic anomalies
- Outcrop of mafic intrusive with copper oxide staining at surface identified from ground-
truthing conducted over a coincident SkyTEMTM electromagnetic (EM) and magnetic
anomaly.
- High-priority sub-surface targets mapped from follow-up high-resolution drone magnetic
and ground gravity surveys.
- Orion’s first diamond drill hole at the Nous Prospect has intersected 10 metres of mafic
intrusive with massive and semi-massive veins of copper sulphide below the copper oxide
outcrop, 120 metres above the main EM target.
- Follow-up drilling is underway to test the EM targets at depth.
Orion’s Managing Director and CEO, Errol Smart, commented:
“This exciting discovery at the Nous Prospect provides early validation of our exploration
methodology for the Okiep district. Remarkably, this is the first discovery in the district in more than
forty years – and it is directly attributable to the use of modern geophysics, followed by mapping
and detailed ground surveys.
“Our early exploration success underscores the huge potential upside in the Okiep region, where
geological records and mining history show that many orebodies either have no outcrop or have
only minor showings at surface, as in this case.
“The significant chalcopyrite-pyrrhotite mineralisation intersected in the hole is exactly what we had
targeted with the SkyTEMTM survey. From the historic records, we know that the predominant copper
mineralisation in the district is bornite and magnetite-rich and will therefore, not respond well to EM
detection. However, we also recognised that all of the largest bodies that were mined at Okiep had
recorded the presence of pods of pyrrhotite rich sulphides, which will react strongly to EM survey
techniques.
“The value of modern EM surveying, which allows us to more accurately model the depth of targets
is demonstrated by the fact that Newmont’s Okiep Copper Company had identified this magnetic
target and tested it with a 104.85m deep vertical drill hole, which was stopped above the EM target
that we have modelled as commencing from a depth of 290m at Target 3.
“Targets 3 and 4 have now been re-ranked by Orion to top priority and fast tracked for drilling due
to the discovery of copper oxides at Target 4, together with other key structural and alteration
indicators on surface over the entire Nous Prospect area.
“What is really exciting, however, is that a further eight selected high priority SkyTEMTM targets are
currently being followed up with systematic ground surveys at the Okiep Copper Project and will be
Orion Minerals Limited www.orionminerals.com.au
Incorporated in the Commonwealth of Australia
Suite 617, 530 Little Collins Street Melbourne, Victoria 3000 ASX Code: ORN
ACN: 098 939 274 JSE Code: ORN
Ordinary shares on issue: 4,382m I Options on issue: 232m ISIN: AU000000ORN1
drilled over the next 12-24 months. The potential for new discoveries and significant additions to
what is already an area with enormous copper endowment, is huge.”
Orion Minerals Limited (ASX/JSE: ORN) (Orion or Company) is pleased to advise that it has made a
significant new copper discovery within its Okiep Copper Project in the Northern Cape Province of
South Africa (Okiep Copper Project).
The first diamond drill hole completed to test a coincident magnetic and electromagnetic (EM)
anomaly at the Nous Prospect has intersected mafic-intrusive-hosted copper sulphide mineralisation
over a drill width of 10m from 31.72m down-hole in drill hole OND001.
This is the first drill hole designed to test one of several SkyTEMTM geophysical anomalies identified
within the Okiep Project from an extensive SkyTEMTM survey flown last year.
The mineralisation intersected occurs as blebs, veins and massive sulphide (80-100%) lenses of
pyrrhotite–chalcopyrite over widths of 1-25cm in drill core within the magnetite rich, mafic intrusive
host (see Figure 1 below).
Figure 1: Photographs of mineralised core with chalcopyrite and pyrrhotite intersected in OND001.
The Nous Prospect encompasses two adjacent SkyTEMTM anomalies contained within a magnetic
anomaly located approximately 5,000m south-west of the historic Nababeep Mine which has
recorded historic production of >2Mt (Figure 2) (refer ASX/JSE release 2 February 2021).
Figure 2: Locality of Targets 3 (right) and 4 (left) SkyTEMTM anomalies on Nous Prospect outside Nababeep.
The mineralisation was drilled down dip of an outcrop of mafic rocks partly obscured by gneiss scree
with of green and blue copper oxide staining. The outcrop is located in a steep gully, in rocky,
mountainous terrain incised by deep crags (Figure 3). The dominant outcrop in the area is the host
Nababeep Gneiss country rock with small inliers of ferruginous schist and meta-quartzite.
Figure 3: Drill rig at foot of the hill at OND001 (photo facing west).
Mapping of the Nous Prospect has identified several small mafic (basic) intrusive outcrops of
different composition ranging from diorite to anorthosite and gabbro (Figure 4). Structural mapping
within the geophysical target has identified several signature “steep structure” formations that most
commonly accompany the mineralised mafic intrusives in the Okiep copper district. The gneiss rocks
also have pervasive charnockitic alteration which is often found as an alteration halo above mafic
intrusive bodies.
Figure 4: Mapped mafic (basic) bodies over SkyTEMTM anomalies Target 3 (right) and Target 4 (left) in the Nous prospect area.
The Nous Prospect was initially selected for follow up after two relatively strong EM conductors
contained within a large magnetic anomaly were identified by the SkyTEMTM helicopter borne EM
survey completed in September 2021 (refer ASX/JSE release 28 October 2021).
Historic records show that Newmont had also identified a magnetic anomaly at this site, three
shallow vertical holes (ranging in depth from 104.8m to 238.0m) were drilled by Newmont, with no
intersections of mafic rocks or mineralisation were recorded in the holes and no copper
mineralisation was mapped in the prospecting area.
The SkyTEMTM geophysical data has been supplemented by high resolution drone magnetics and
ground gravity surveys, all of which revealed coincident anomalies over the same target area
(Figure 5). The two SkyTEMTM EM targets have cores located 570m apart and are modelled at 290 -
510m depth at Target 3 and 70 – 237m at Target 4 (Figure 6).
Figure 5: Residual gravity contoured and along with mapped mafic bodies and borehole positions draped over total field drone
magnetics (red = high). Anomalous areas coincide over the same target area.
Orion drilled diamond hole OND001 to confirm the sulphide assemblage, at shallow depth directly
below the copper mineralised outcrop adjacent to and above Target 4 (Figure 6).
The hole intersected well developed pyrrhotite-chalcopyrite mineralisation, with pyrrhotite in
massive (80 to 100%) and semi massive (40 to 80%) veins and lenses of up to 25cm thickness
presenting prospective strong EM conductors.
Notably the intersection is outside the peak detected EM anomaly which is now being drilled with a
follow-up hole (Figure 6).
Figure 6a (top): A schematic representation of the egg-shaped EM anomalies in relation to OND001 (short hole testing the
surface sulphide assemblage) and the planned depth for OND002 (longer hole). Facing direction is north and holes OND001 and
OND002 have azimuths of 1800 and 1900 respectively.
Figure 6b (bottom): illustrates the same information however, direction is west.
While drilling continues at Target 4 from the base of the steep hill, drill access tracks are currently
being established to reach the top of the hill at Target 3 so that drilling can commence on this larger
and higher intensity EM anomaly.
OND001 has been logged, sampled and submitted to the laboratory with assay results expected in
the coming weeks.
For and on behalf of the Board.
Errol Smart
Managing Director and CEO
24 February 2022
ENQUIRIES
Investors Media JSE Sponsor
Errol Smart – Managing Director & CEO Nicholas Read Monique Martinez
Denis Waddell – Chairman Read Corporate, Australia Merchantec Capital
T: +61 (0) 3 8080 7170 T: +61 (0) 419 929 046 T: +27 (0) 11 325 6363
E: info@orionminerals.com.au E: nicholas@readcorporate.com.au E: monique@merchantec.co.za
Competent Persons Statement
The information in this report that relates to Orion’s Exploration Results at the Okiep Copper Project is reported
in accordance with the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral
Resources and Ore Reserves (JORC Code) and has been compiled and assessed under the supervision of
Andre Vorster, Orion Minerals Consulting Geologist, a Competent Person who is a Professional Natural Scientist
(Pr.Sci.Nat.) registered with the South African Council for Natural Scientific Professionals, a Recognised
Professional Organisation (RPO). Mr Vorster, as Orion Minerals Consulting Geologist, is a full-time employee of
the company. Mr Vorster confirms there is no potential for a conflict of interest in acting as the Competent
Person. Mr Vorster 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 JORC Code. Mr Andre Vorster (Pr.Sci.Nat) consents to the inclusion in this announcement of
the matters based on his information in the form and context in which it appears.
Disclaimer
This release may include forward-looking statements. Such forward-looking statements may include, among
other things, statements regarding targets, estimates and assumptions in respect of metal production and
prices, operating costs and results, capital expenditures, mineral reserves and mineral resources and
anticipated grades and recovery rates, and are or may be based on assumptions and estimates related to
future technical, economic, market, political, social and other events. Forward-looking statements inherently
involve subjective judgement and analysis and are necessarily subject to risks, uncertainties and other factors,
many of which are outside the control of Orion. Actual results and developments may vary materially from
those expressed in this release. Given these uncertainties, readers are cautioned not to place undue reliance
on such forward-looking statements. Orion makes no undertaking to subsequently update or revise the forward-
looking statements made in this release to reflect events or circumstances after the date of this release. All
information in respect of Exploration Results and other technical information should be read in conjunction with
Competent Person Statements in this release (where applicable). To the maximum extent permitted by law,
Orion and any of its related bodies corporate and affiliates and their officers, employees, agents, associates
and advisers:
- disclaim any obligations or undertaking to release any updates or revisions to the information to reflect
any change in expectations or assumptions;
- do not make any representation or warranty, express or implied, as to the accuracy, reliability or
completeness of the information in this release, or likelihood of fulfilment of any forward-looking
statement or any event or results expressed or implied in any forward-looking statement; and
- disclaim all responsibility and liability for these forward-looking statements (including, without limitation,
liability for negligence).
Appendix 1: The following tables are provided in accordance with the JORC Code (2012) requirements for the reporting of Exploration Results from the
Okiep Copper Project.
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 (e.g. cut channels, random chips, or - Sampling was carried out under supervision of a qualified geologist
specific specialised industry standard measurement tools appropriate using industry standard procedures. NQ size diamond drill cores were
to the minerals under investigation, such as down hole gamma longitudinally split in half using a diamond core cutting machine. HQ
sondes, or handheld XRF instruments, etc). These examples should not core was not sampled.
be taken as limiting the broad meaning of sampling. - One metre sample lengths were generally taken. However, in some
- Include reference to measures taken to ensure sample representivity cases, subsamples of 10cm to 15cm were taken to determine Cu and
and the appropriate calibration of any measurement tools or systems Ni tenure in sulphide intersections. Sample lengths were varied to
used. honour geological and mineralisation boundaries.
- Aspects of the determination of mineralisation that are Material to the - Areas of sampling were selected based on visual observations assisted
Public Report. by readings from handheld Niton XL3t 500 XRF instrument for qualitive
- In cases where ‘industry standard’ work has been done this would be assessment and mineral identification.
relatively simple (eg ‘reverse circulation drilling was used to obtain 1 - Niton readings include standard analytical range >25 elements from S
m samples from which 3 kg was pulverised to produce a 30 g charge to U with additional elements Mg, Al, Si and P via helium purge.
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 - Diamond core drilling was undertaken.
blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple - HQ and NQ size core was drilled using a standard tube. HQ core size
or standard tube, depth of diamond tails, face-sampling bit or other was only drilled in the upper 6m weathered portion.
type, whether core is oriented and if so, by what method, etc). - Core was not oriented.
Drill sample recovery - Method of recording and assessing core and chip sample recoveries - Core ‘stick-ups’ reflecting the depth of the drill hole are recorded at
and results assessed. the rig at the end of each core run. A block with the depth of the hole
- Measures taken to maximise sample recovery and ensure written on it is placed in the core box at the end of each run. At the
representative nature of the samples. core yard, the length of core in the core box is measured for each run.
The measured length of core is subtracted from the length of the run as
- Whether a relationship exists between sample recovery and grade recorded from the stick-up measured at the rig to determine the core loss.
and whether sample bias may have occurred due to preferential
loss/gain of fine/coarse material. - Ground conditions below the weathered zone are very good and
excellent core recovery was obtained. Core recovery was >98% within
the mineralised zone.
- No obvious relationship exists between sample recovery and grade.
Criteria JORC Code explanation Commentary
There was no core/sample loss or gain which could result in sample bias.
- No additional measures were taken to maximize sample recovery.
- Samples are deemed representative by the CP.
Logging - Whether core and chip samples have been geologically and - Core of the entire hole length was geologically logged by qualified
geotechnically logged to a level of detail to support appropriate geologists.
Mineral Resource estimation, mining studies and metallurgical studies. - Geological logging was quantitative and was carried out using a
- Whether logging is qualitative or quantitative in nature. Core (or reference sheet with a set of standard codes to describe lithology,
costean, channel, etc) photography. structure and mineralisation. The logging sheet also allows for free-form
- The total length and percentage of the relevant intersections logged. description to note any unusual features.
- Geological logs were captured electronically.
- All cores were photographed before and after sampling.
- One hole (OND001) has been drilled and logged to date. This included
an intersection of ultramafic/mafic lithologies hosting visual Cu
mineralisation from 31.72m to 41.68m.
Sub-sampling - If core, whether cut or sawn and whether quarter, half or all core - NQ core was cut, and half core was taken as sample. No HQ core was
techniques and taken. sampled.
sample preparation - If non-core, whether riffled, tube sampled, rotary split, etc and - Half-core samples of 10 to 15cm were taken and submitted for assay
whether sampled wet or dry. where massive pyrrhotite was observed. Care was taken to maintain
- For all sample types, the nature, quality and appropriateness of the sample mass above 300g. This sample mass is considered satisfactory.
sample preparation technique. - At the time of this release, samples have been submitted to ALS
- Quality control procedures adopted for all sub-sampling stages to Laboratory, Johannesburg (an ISO accredited laboratory) however no
maximise representivity of samples. results have been received as yet.
- Measures taken to ensure that the sampling is representative of the in - ALS utilises industry best practice for sample preparation for analysis
situ material collected, including for instance results for field involving drying and weighing of samples, crushing to <2mm, riffle
duplicate/second-half sampling. splitting to 250g, and then pulverising with +85% passing through 75 microns.
- Whether sample sizes are appropriate to the grain size of the material - Crushing and pulverising QC tests are applied by ALS.
being sampled. - Field duplicates were not included for the 22 core samples submitted
for analysis to ALS.
Quality of assay data - The nature, quality and appropriateness of the assaying and - All samples will be analysed by an appropriate high-grade aqua regia
and laboratory tests laboratory procedures used and whether the technique is considered ICP-AES method, ALS code ME-ICP41a.
partial or total. - Samples submitted to ALS are analysed for base metals and Au. ALS is
- For geophysical tools, spectrometers, handheld XRF instruments, etc, an ISO/IEC 17025:2005 accredited laboratory.
the parameters used in determining the analysis including instrument - Orion (purchased from AMIS) CRMs were inserted every 10th sample.
make and model, reading times, calibrations factors applied and The CRM used was AMIS0399 (1.014% Cu).
their derivation, etc.
Criteria JORC Code explanation Commentary
- Nature of quality control procedures adopted (eg standards, blanks, - One CRM was inserted for this batch of 22 samples. The total submission
duplicates, external laboratory checks) and whether acceptable consisting of 19 half-core samples, two blanks and one CRM.
levels of accuracy (ie lack of bias) and precision have been - Not enough samples were submitted to alternate CRM’s throughout
established. the sample stream.
- Chip blanks were inserted at the beginning of each batch and after
any sample that may be considered high grade. Two blanks were
inserted in the submission of 22 samples.
- No external laboratory checks have been carried out at this stage.
- As of date of this release, sample results are pending.
Verification of - The verification of significant intersections by either independent or - Orion’s exploration geologist, along with a team of experienced
Sampling and alternative company personnel. consultant geologists, are supervising the drilling and sampling.
assaying - The use of twinned holes. - Sample results are pending.
- Documentation of primary data, data entry procedures, data
verification, data storage (physical and electronic) protocols.
- Discuss any adjustment to assay data.
Location of data - Accuracy and quality of surveys used to locate drill holes (collar and - Collar positions of the holes were surveyed using a hand-held Garmin
points down-hole surveys), trenches, mine workings and other locations used GPS. Drill collars will be surveyed by a qualified surveyor on completion
in Mineral Resource estimation. of the drilling program.
- Specification of the grid system used. - On completion drill collars will be capped and labelled.
- Quality and adequacy of topographic control. - The World Geodetic System (WGS84) ellipsoid in the UTM coordinate
system zone 34J South has been used thought-out the project (i.e, UTM
WGS84).
- A REFLEX EZ-TRAC tool was used for the down-hole surveys.
- A high resolution and accurate DTM (within 1.5m elevation) was
generated and obtained from Drone Photogrammetry. A DJI drone is
used drape flying at 100m AGL and approximately 45m line spacing.
The imagery is processed using AgiSoftTM software.
Data spacing and - Data spacing for reporting of Exploration Results. - One hole has been completed (OND001) and the second hole
distribution - Whether the data spacing and distribution is sufficient to establish the (OND002) is in progress as at date of this release.
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 of data in - Whether the orientation of sampling achieves unbiased sampling of - To achieve unbiased sampling, drilling is oriented as close as practically
relation to geological possible structures and the extent to which this is known, considering possible to perpendicular, or at a maximum achievable angle, to the
structure the deposit type. attitude of the mineralisation.
Criteria JORC Code explanation Commentary
- If the relationship between the drilling orientation and the orientation - Drill holes OND001 and OND002 were inclined at -50° and -550
of key mineralised structures is considered to have introduced a respectively.
sampling bias, this should be assessed and reported if material. - No sampling bias is anticipated as a results of drill hole orientations.
Sample security - The measures taken to ensure sample security. - Chain of custody is managed by the Company. Samples were stored
on site in a secure locked building and then freighted directly to the
laboratory.
Audits or reviews - The results of any audits or reviews of sampling techniques and data. - No audits or reviews have been carried out to date.
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 - Type, reference name/number, location and ownership including - The mineral rights to the properties are vested in the State and the
land tenure status agreements or material issues with third parties such as joint ventures, Minerals and Petroleum Development Act, 2002, (MPRDA) regulates
partnerships, overriding royalties, native title interests, historical sites, the exploration and mining industry in South Africa.
wilderness or national park and environmental settings. - A prospecting right, NC30/5/1/1/2/11125PR, in accordance with
- The security of the tenure held at the time of reporting along with any section 17 of the MPRDA was granted to Nababeep Copper Company
known impediments to obtaining a licence to operate in the area. (Pty) Ltd (NCC) to prospect for a period of five years effective from 8
November 2017.
- The prospecting right was granted for copper ore and tungsten ore for
portion of Portion 3 of the farm Nababeep No 134, remainder of the
farm Plaatjesfontein No 135, portions 2, 3, 4 and 7 of the farm
Nigramoep No 136, portion RE of the farm Schaap Rivier No 208, RE and
Portion 1 of Farm No 610 and Portion 9 of the farm Ezelsfontein No 214,
situated within the administrative district of Namaqualand. The total
Area measures 18 475 Ha in extent.
- Section 102 applications are in process with the authorities to add land
to bring the total extent to approximately 33 900Ha; and add 26
minerals including nickel, gold and silver.
- The surrounding area was historically mined for copper.
- Orion, recently acquired 100% of the project through the NCC-Orion
Acquisition Agreement (refer ASX/JSE release 2 August 2021).
Exploration done by - Acknowledgment and appraisal of exploration by other parties. - The O’Okiep Copper Company conducted surface mapping over the
other parties prospect and adjacent areas.
- Newmont drilled 3 exploration holes which stopped short of their
respective geophysical anomalies.
Criteria JORC Code explanation Commentary
Geology - Deposit type, geological setting and style of mineralisation. - The tenements are in the Okiep Copper District. The style of
mineralisation is mafic hosted orogenic Cu-mineralisation.
- Copper mineralisation is primarily associated with irregular, elongated
and steeply dipping Koperberg Suite mafic intrusives.
- The Koperberg Suite intrusives are mainly restricted to so-called “Steep
Structures” of extensive strike lengths and steeply dipping to the north.
- The Koperberg Suite consists mainly of anorthosite, diorite and norite.
- Mineralisation occurs as disseminated Cu mineral assemblages of
bornite > chalcopyrite > chalcocite and less pyrite and pyrrhotite.
Massive sulphides are locally developed.
- The more mafic and magnetite-rich lithologies generally host the bulk
of and higher-grade mineralisation.
- The OCD has a long exploration and mining history, and the geology is
well known and understood.
Drill hole Information - A summary of all information material to the understanding of the - Only drill hole OND001 has been completed at time of release. Drill hole
exploration results including a tabulation of the following information OND002 has started and is in progress.
for all Material drill holes: - Newmont holes (NOUS001 – NOUS003) azimuth and dip are included in
o easting and northing of the drill hole collar the table below.
o elevation or RL (Reduced Level – elevation above sea level in Hole ID Easting Northing Azimuth Dip Hole Length Intersection
metres) of the drill hole collar OND001 766412 6720480 1800 -500 60m 31.72-
o dip and azimuth of the hole 41.68m
o down hole length and interception depth OND002 766364 6720567 1900 -550 >250m Drilling
planned ongoing
o hole length.
NOUS001 767178 6720728 0 -90 135m Nil
- If the exclusion of this information is justified on the basis that the
NOUS002 767196 6720857 180 -68 238m Nil
information is not Material and this exclusion does not detract from
the understanding of the report, the Competent Person should clearly NOUS003 766715 6720699 0 -90 104m Nil
explain why this is the case. Coordinates in UTM WGS84 zone 34J South.
- Coordinates surveyed by a geologist using a Garmin handheld GPS.
The collar will be surveyed by a qualified surveyor on completion of the
drilling program.
- OND001 intersected mineralised mafic rocks of the Koperberg Suite
from 31.72m to 41.68m.
Data aggregation - In reporting Exploration Results, weighting averaging techniques, - NA. No assay results or grades are reported in the announcement.
methods maximum and/or minimum grade truncations (e.g. cutting of high Assay results for OND001 are pending and samples for OND002 is in
grades) and cut-off grades are usually Material and should be stated. progress at the time of release.
Criteria JORC Code explanation Commentary
- 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 between - These relationships are particularly important in the reporting of - Drilling is oriented at a maximum achievable angle to the attitude of
mineralisation widths Exploration Results. the mineralisation.
and intercept lengths - If the geometry of the mineralisation with respect to the drill hole - Mineralisation is expected to dip between 700 and 900 north. Holes
angle is known, its nature should be reported. OND001 and OND002 were inclined to -500 and -550 respectively.
- If it is not known and only the down hole lengths are reported, there - Only down hole lengths are reported.
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 - Refer to text.
intercepts should be included for any significant discovery being - Drilling data was analysed in Leapfrog 3D geological software.
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 - In the Competent Person’s opinion, progress reported in this
practicable, representative reporting of both low and high grades announcement has been reported in a balanced manner.
and/or widths should be practiced to avoid misleading reporting of
Exploration Results.
Other substantive - Other exploration data, if meaningful and material, should be - An airborne electromagnetic survey (SkyTEM) covered the area (Refer
exploration data reported including (but not limited to): geological observations; ASX / JSE release 1 September 2021).
geophysical survey results; geochemical survey results; bulk samples – - Historical and current detailed surface mapping has been interpreted
size and method of treatment; metallurgical test results; bulk density, and utilised during drill hole planning.
groundwater, geotechnical and rock characteristics; potential
deleterious or contaminating substances. - A high-resolution drone magnetic survey was carried-out.
- Drone (DJI 600M Pro) magnetics were done at 30m above ground level
and 50m line spacing.
- The GemSys GSMP-25U magnetics sensor specifically designed for
drones was used.
- The line orientation was 330° (NW-SE).
- The GSMP-25U has the following specifications:
- Sensitivity: 0.022 nT @ 1 Hz
- Resolution: 0.0001 nT
- Absolute Accuracy: +/- 0.1 nT
- Heading Error: + / – 0.05 nT
- Dynamic Range: 15,000 to 120,000 nT
- Gradient Tolerance: 50,000 nT/m
- Sampling Intervals: 1, 2, 5, 10, 20 Hz
- Various geophysical products were produced, i.e. Total Magnetic
Intensity (TMI), 1st Vertical Derivative (1VD), Reduce to Pole (RTP) and
Analytical Signal (AS).
- A detailed ground gravity survey was carried out.
- A Scintrex CG5 Auto-gravity meter was used to carry out the ground
gravity survey at 50m line spacing with 25m station spacing over the
target areas and 50m station over the background area.
- The ground gravity stations elevation measurements were surveyed
using a Leica 900 Differential Global Positioning System (DGPS).
- The line orientation was 150° (NW-SE).
- Scintrex CG5 Auto Gravimeter has the following specifications:
- Resolution: 0.001 milligal
- Minimum Operating Range: 8000 milligals
- Repeatability: 0.005 milligals
- Range of Automatic Tilt Correction: +/- 200 arc seconds
- Measurement duration: 60 seconds
- Leica 900 DGPS has the following specifications:
- Accuracy with real time/RTK RTK capability Kinematics,
- standard Horizontal: 10mm + 1ppm
- Vertical: 20mm + 1ppm
- Geophysical products were the Complete Bouguer Anomaly Map
(C_Bouguer) and Trend Removed Bouguer Anomaly.
- Where possible, bulk density measurements were made over the full
length of each individual sample of split core. Where not possible due
to incompetent (crushed or broken) core, a minimum of 80% of the
(half-core) sample was used. The bulk density is determined by
measuring and subtracting the wet weight from the dry weight using
an electronic scale. Care is taken to clean and zero the scale between
each weighing. The intact sample portion is first weighed in air and the
weight recorded. The sample is then weighed, while completely
submerged in clean water within a measuring container. The mass of
container and water are deducted for net submerged weight and
volume displacement read on measuring container. The sample is then
removed and placed back into the core tray in the correct position
and orientation. The procedure is repeated for each geological
sample interval. The data were recorded in the Bulk density Data Sheet.
The bulk density is calculated for each sample using the formula:
Criteria JORC Code explanation Commentary
weight of sample
BD BD =
(weight of sample in air – weight of the sample in water)
Further work - The nature and scale of planned further work (e.g. tests for lateral - Drilling will continue to test the prospect for copper mineralisation.
extensions or depth extensions or large-scale step-out drilling).
- Diagrams clearly highlighting the areas of possible extensions,
including the main geological interpretations and future drilling areas,
provided this information is not commercially sensitive.
Date: 24-02-2022 09:02:00
Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE').
The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of
the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct,
indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on,
information disseminated through SENS.
Sharenet Sites 
