Wrap Text
Significant shallow high-grade nickel-copper-cobalt-PGE intercept confirms strong open pit potential
at Jacomynspan
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
Significant shallow high-grade nickel-copper-cobalt-PGE intercept confirms strong open pit potential
at Jacomynspan
Intersection commences from just 85m below surface, highlighting an outstanding opportunity to drill out a shallow
zone potentially extending over a strike length of up to 3km
- Diamond drill hole OJPD055 at the Jacomynspan Nickel-Copper-Cobalt Project, located 80km NW
of the Prieska Copper-Zinc Project, has intersected a shallow massive sulphide zone:
• 31.53m at 0.72% Ni, 0.34% Cu, 0.05% Co and 0.45g/t 2PGE+Au from 100.63m down-hole,
including:
• 7m at 1.55% Ni, 0.345% Cu, 0.10% Co and 0.43g/t 2PGE+Au from 106.00m down-hole.
- The top of the intersection starts at 85m below surface, confirming the strong potential for open pit
mining at Jacomynspan.
- The intercept lies within a mineralised ultramafic body extending over a strike length of more than
3km, representing an outstanding shallow, open pit drill target.
- Previous drilling targeted the deeper parts of the deposit with a view to evaluating underground
mining potential, leaving the shallower parts of the structure virtually unexplored.
Orion’s Managing Director and CEO, Errol Smart, said:
“We could not have asked for a better start to our initial drilling to test the shallow open pit potential at
Jacomynspan. The high-grade massive sulphide intercept in diamond hole OJPD055 has certainly exceeded our
expectations in terms of the potential for higher-grade nickel mineralisation to occur close to surface. This is the
best intersection ever achieved at Jacomynspan and confirms our view that there is a significant open pit
opportunity at this project.
“Previous explorers pretty much ignored the upper 200m of the deposit as their mindset was focused on
underground mining that would sterilise a large crown pillar to be left at surface. What this intercept tells us is that
there is a significant zone of shallow sulphide nickel-copper-cobalt-PGE mineralisation within the ultramafic
structure, commencing at a depth of around 85m vertically below surface. That is a big breakthrough and leaves
us with more than 3km of under-explored strike length with proven mineralisation at depth and presenting a
compelling open pit mining target – the reverse of what you would normally expect from an advanced
exploration project!
“Because this sulphide mineralisation is so shallow, we see a clear opportunity to add substantial value to the
project in a short space of time and at relatively little cost. We are now planning an intensive resource drill-out
focused on the upper 200m, in parallel with metallurgical investigation which are currently underway. We also
intend to sample and test the metallurgical charcteristics of the upper 60m of oxidised ore, that has been
completely ignored in the past.”
Orion Minerals Limited (ASX/JSE: ORN) (Orion or the Company) is pleased to advise that a recently completed
diamond drill hole at its Jacomynspan Nickel-Copper-Cobalt-PGE Project, located 80km north-west of its flagship
Prieska Copper-Zinc Project in the Northern Cape Province of South Africa (Figure 1), has returned a significant
high-grade massive sulphide intercept. The shallow intercept has substantially upgraded the prospectivity of the
project and highlights the opportunity for a near-term resource drill-out targeting the upper portions of the
deposit.
Diamond drill hole OJPD055 intersected a broad zone of strong mineralisation comprising:
• 31.53m from 100.63m at 0.72% Ni, 0.34% Cu, 0.05% Co and 0.45g/t 2PGE+Au from 100.63m down-hole,
including a higher-grade zone of:
• 7.00m from 106.00m at 1.55% Ni, 0.35% Cu, 0.10% Co and 0.43g/t 2PGE+Au from 106.00m down-hole
(Table 1).
Hole OJPD055 was designed to complete drill section 5 after encouraging results were obtained in drill hole
OJPD054 (refer ASX release 25 January 2021). The hole intersected massive and mottled sulphide mineralisation
hosted by Harzburgite from 106.00m to 118.00m (Figure 2).
The mineralisation is hosted by the Jacomynspan Intrusive, an ultramafic body striking roughly east-west for more
than 3km with a thickness of up to 70m and dipping 80 degrees south. Jacomynspan currently hosts a Mineral
Resource of 6.8Mt at 0.57% Ni, 0.33% Cu, 0.03% Co, 0.19g/t Pt, 0.12g/t Pd, 0.07g/t Au (refer ASX release 20 October
2020).
The Jacomynspan Project is located some 80km north-west of Orion’s flagship Prieska Copper-Zinc Project on the
Namaqua and Disawell prospecting rights in the Areachap Belt, South Africa.
Figure 1: Locality map showing the prospects drilled during the 2020 / 2021 drilling campaign on the Areachap Belt.
Figure 2: Massive and mottled sulphide intersected in drill hole OJPD055.
Down hole depth Intersection width Ni % Cu % Co % Au g/t Pt g/t Pd g/t
(m) (m)
100.63 to 132.16 31.53 0.72 0.34 0.05 0.09 0.25 0.11
106.00 to 113.00 7.00 1.55 0.35 0.10 0.15 0.13 0.16
Table 1: Summary of significant intersections made in drill hole OJPD055.
Orion is currently investigating the potential to exploit the shallow parts of the Jacomynspan deposit through
open pit mining. Significantly, the high-grade mineralisation intersected in OJDP055 occurs just 85m below
surface, highlighting the need to drill-out the upper 200m of the deposit over the interpreted strike length of over
3km (see Figure 3, which is a cross-section along Section Line 5 in Figure 4).
Figure 5 shows the drilling completed by various companies along the 3km of strike length of the Jacomynspan
Intrusive. Drilling concentrated on the deeper parts of the deposit and very few holes intersected the deposit
above 150m vertical depth, as historical exploration was undertaken with a mindset focused on underground
mining.
Figure 3: Geological cross-section along Section 5 showing the higher nickel grades close to surface.
Figure 4: Map showing drill holes and section lines in the vicinity of OJPD055.
Figure 5: Map showing ultramafic sub-outcrops of the Jacomynspan Intrusive and drilling by various exploration companies.
The lack of shallow drilling at Jacomynspan leaves Orion with a significant opportunity to explore at shallow
depth, above the historical drill intercepts and known nickel-copper-cobalt mineralisation at depth.
Work is currently underway to plan an extensive resource drill-out targeting the upper 200m of the deposit, with
a view to establishing a JORC Mineral Resource as the foundation for economic studies. This work is being
progressed in parallel with metallurgical testwork.
For and on behalf of the Board.
Errol Smart
Managing Director and CEO
22 March 2021
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 Person’s Statement
The information in this report that relates to Exploration Results has been compiled under the supervision of Mr Conrad Louw
van Schalkwyk, a Competent Person who is registered with the South African Council for Natural Scientific Professionals, a
‘Recognised Professional Organisation (RPO). Mr Van Schalkwyk is a full-time employee of Orion in the role of Executive:
Exploration. Mr Van Schalkwyk 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 Van Schalkwyk consents
to the inclusion in the report 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
conditions. These forward-looking statements are based on management’s expectations and beliefs concerning future
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: Table of intersections from the Jacomynspan Project in this release.
East North Azimuth Inclination From To Length Ni Cu Co Au Pt Pd
Drill hole UTM WGS84 Zone 34 S (degrees) (degrees) (m) (m) (m) (%) (%) (%) (g/t) (g/t) (g/t)
OJPD055 576,316 6,755,865 20 -60 100.63 132.16 31.53 0.72 0.34 0.05 0.09 0.25 0.11
Including 106.00 113.00 7.00 1.55 0.35 0.10 0.15 0.13 0.16
Appendix 2: The following tables are provided in accordance with the JORC Code (2012) for the reporting of Exploration Results for the Jacomynspan
Project.
Section 1 Sampling Techniques and Data
Criteria JORC Code explanation Commentary
Sampling techniques • Nature and quality of sampling (e.g. cut channels, random chips, • The drill hole is geologically logged, and zones of mineralisation are
or specific specialised industry standard measurement tools identified and marked on the core. The core is marked for cutting using
appropriate to the minerals under investigation, such as down the “low point” of the stratigraphy, marking the downhole direction on
hole gamma sondes, or handheld XRF instruments, etc.). These each core piece to ensure that the cut core is returned to the tray
examples should not be taken as limiting the broad meaning of correctly. Half core is sampled. Following cutting, the core returned to
sampling. the tray. The sampling process is undertaken by a geologist, who checks
that all core is returned in the correct order by turning the core to face
• Include reference to measures taken to ensure sample upward, fitting the core together and marking the metre intervals on the
representivity and the appropriate calibration of any cut face. The core is reviewed, and zones of mineralisation identified.
measurement tools or systems used. The core sample intervals are marked with due consideration of the
• Aspects of the determination of mineralisation that are Material percentage of sulphide mineralisation, lithological contacts, and
to the Public Report. minimum and maximum sample intervals (nominally 30cm to 1.5m). The
sampling details are captured onto a paper log sheet that records
• In cases where ‘industry standard’ work has been done this sample depths, sample number (derived from a standardised sample
would be relatively simple (e.g. ‘reverse circulation drilling was register) recoveries, mineralisation percentage, sulphide minerals and
used to obtain 1 m samples from which 3 kg was pulverised to mineralisation style. A comments field is used to capture ancillary
produce a 30 g charge for fire assay’). In other cases more observations or associations.
explanation may be required, such as where there is coarse gold
that has inherent sampling problems. Unusual commodities or • Samples are despatched by courier to the analytical laboratory.
mineralisation types (e.g. submarine nodules) may warrant
disclosure of detailed information.
Drilling techniques • Drill type (e.g. core, reverse circulation, open-hole hammer, • Diamond core drilling was undertaken using HQ core size to drill through
rotary air blast, auger, Bangka, sonic, etc.) and details (e.g. core the weathered zone (approximately 75m) reducing to NQ core in hard
diameter, triple or standard tube, depth of diamond tails, face- rock.
sampling bit or other type, whether core is oriented and if so, by
what method, etc.). • Core was not orientated. Enough historic drilling records are available to
know the orientation of mineralisation.
Drill sample recovery • Method of recording and assessing core and chip sample • Core recoveries are assessed on a routine basis using drill rig and core
recoveries and results assessed. yard standard procedures.
• Measures taken to maximise sample recovery and ensure • At the drill rig, core stick-ups are measured at the end of each run. The
representative nature of the samples. core is fitted together and placed into the core trays with a plastic block
at the end of each run recording the hole depth and advance.
• Whether a relationship exists between sample recovery and
grade and whether sample bias may have occurred due to • At the core yard, the length of core is measured for each run. The
preferential loss/gain of fine/coarse material. measured length of core is subtracted from the run length recorded from
the driller’s stick-up measurements and recorded as a core gain or loss.
• During the logging and sampling process, core recoveries are
considered, and the cause of loss is quantified and described. The
locations of ‘bottom breaks’ relative to the core run markers are
observed.
• There is no relationship between grade and recovery. This is a hard-rock
style of mineralisation that is being evaluated using diamond drilling,
generally with 100% core recovery through the mineralised zones.
Logging • Whether core and chip samples have been geologically and • The drill hole core is geologically logged utilising a standard-format
geotechnically logged to a level of detail to support appropriate logging template designed specifically for this style of mineralisation. The
Mineral Resource estimation, mining studies and metallurgical level of detail is sufficient to support Mineral Resource estimation, mining
studies. studies and metallurgical studies.
Whether logging is qualitative or quantitative in nature. Core (or • Both quantitative and qualitative logging is undertaken dependent
costean, channel, etc.) photography. upon the features being described. Qualitative parameters include
lithology, colour, grain size, weathering, structural features, alteration,
• The total length and percentage of the relevant intersections sulphide and oxide mineralisation, secondary mineralisation, and
logged.
general contextual comments. Quantitative parameters include
intensity of the qualitative parameters, mineralisation percentages, and
magnetic properties.
• Oriented core has measurements taken relative to an orientation line
showing bottom of hole for planar surfaces and results are recorded for
structural orientation in 3D space.
• The logs are recorded onto pre-designed templates and captured into
digital format at the project office.
• The drill hole core is photographed according to standard core yard
procedure and the photographs are digitally archived.
Sub-sampling • If core, whether cut or sawn and whether quarter, half or all core • The NQ core is saw-cut at the Copperton core yard, and half-core is
techniques and sample taken. sampled.
preparation
• If non-core, whether riffled, tube sampled, rotary split, etc. and • Within the mineralised zones, the entire zone is cut and sampled. Internal
whether sampled wet or dry. waste or non-mineralised zones may not be sampled dependent upon
their width.
• For all sample types, the nature, quality and appropriateness of
the sample preparation technique. • The duplicate samples are derived from quarter core from previously
sampled drill holes.
• Quality control procedures adopted for all sub-sampling stages
to maximise representivity of samples. • The sampling methodology is suitable for the style of mineralisation being
sampled. The base metals are associated with the sulphide minerals,
• Measures taken to ensure that the sampling is representative of which are generally reasonably evenly distributed. Although nugget
the in-situ material collected, including for instance results for effects are higher for the precious metals, they are fine grained and
field duplicate/second-half sampling. intimately associated with the base metal sulphides, therefore nugget
• Whether sample sizes are appropriate to the grain size of the effect is reduced.
material being sampled.
• Sample preparation is undertaken at the ISO-accredited ALS Chemex
analytical laboratory. The samples are processed according to industry
best-practice. This involves a sample check-in procedure during which
samples are assigned unique bar codes and entered into the LIMS
system. The samples are then dried, crushed to <5mm, and pulverised
to >85% <75 microns.
• Density determinations are acquired by the technician using an
Archimedes Bath. The data is captured and verified by the geologist
prior to sample bag sealing.
• The samples are sealed and placed into polyweave bags for shipping to
the analytical laboratory. The bagging schedule is recorded, and all
bags are weighed.
• All hard-copy information pertaining to the above process is filed in the
original drill hole log file, and the appropriate data is digitally captured
into the MS Excel drill hole log file.
Quality of assay data • The nature, quality and appropriateness of the assaying and • Following sampling data capture, the core is placed into pre-numbered
and laboratory tests laboratory procedures used and whether the technique is plastic bags by the responsible geologist. QC samples are assigned
considered partial or total. empty bags at this point. The sample ticket book is then completed and
handed over to the technician.
• For geophysical tools, spectrometers, handheld XRF instruments,
etc., the parameters used in determining the analysis including • Duplicate samples derived from previous drill hole core (quarter core),
instrument make and model, reading times, calibrations factors or drill hole being sampled are added to the sample list at the end.
applied and their derivation, etc.
• QC samples (standards and blanks) are inserted into the defined sample
• Nature of quality control procedures adopted (e.g. standards, bags by the technician. Matrix and mineralisation-matched standards
blanks, duplicates, external laboratory checks) and whether are used.
acceptable levels of accuracy (i.e. lack of bias) and precision
have been established. • ALS Chemex also inserts QC samples into each batch, including 5%
CRMs, 2.5% blanks, and 2.5% duplicates.
• The analyses are undertaken by ALS Chemex. The samples are analysed
for base metals, precious metals and sulphur using the following
methods:
o ME-ICP41 – 35-element analysis specifically designed to analyse
the acid-soluble portion of the analyte. The sample is digested
using aqua regia, with ICP-AES analysis. For the metals of specific
interest, Ni, Cu, and Co, the detection limits are 1 – 10,000ppm.
For S, the detection limits are 0.01 – 10%.
o PGM-ICP23 – standard Pb-collection fire assay with ICP-MS finish
using a nominal 30g sample weight (detection limits of 0.005 (Pt)
and 0.001 (Au, Pd) to 10.0g/t).
o NI, Cu-OG46 – is applied to samples that assay > detection limit
for Ni and Cu using method ME-ICP41. The method uses aqua
regia digestion with ICP-AES or AAS analysis.
o S-IR08 - total sulphur analysis using the Leco method has been
implemented following identification of an issue with the ME-
ICP41 sulphur analysis for samples with >10% S. The analytical data
below this percentage are statistically comparable between the
two methods.
• The methods utilised are appropriate to the style and grade of
mineralisation being explored for. The aqua regia digest provides the
most precise analysis of the acid-soluble sulphide hosted mineralisation,
without digesting the non-recoverable silicate hosted base metals.
• Following receipt of assay data, QC assessment is undertaken using a
standard-format spreadsheet that includes all historic assay data. The
external standard, blank and duplicate data are processed as well as
the internal ALS Chemex standards, duplicates and blanks.
Portable XRF Analysis • Instrument used, methodology applied, QC protocols and • No portable XRF analysis was used for reporting.
usage/applicability of the data.
Verification of sampling • The verification of significant intersections by either independent • No independent verification has been undertaken by independent
and assaying or alternative company personnel. persons.
• The use of twinned holes. • All intersections and their analytical data have been inspected and
verified by Orion Minerals Executive: Exploration.
• Documentation of primary data, data entry procedures, data
verification, data storage (physical and electronic) protocols. • The drill hole data are captured onto paper logs that are kept in specific
drill hole log files. The data is captured into a standard-format drill hole
• Discuss any adjustment to assay data. MS Excel spreadsheet by the geologist. The drill hole log is regularly
appended to the project database as data is captured.
• First-pass quality control is undertaken on a regular basis as the log data
are imported into Micromine for visualisation purposes. The Micromine
file import verification protocols identify any depth or survey issues should
they be present.
• No adjustments are made to assay data. The assay certificate is not
altered in any manner. The data is captured from the certificate into the
drill hole file, merged, QC samples removed, and the data is appended
to the Micromine project file. The data is compared to the drill hole logs
to assess whether any anomalies are present.
Location of data points • Accuracy and quality of surveys used to locate drill holes (collar • The drill hole collars are field located using a handheld Garmin GPS. The
and down-hole surveys), trenches, mine workings and other drill hole azimuth and dip are surveyed by the driller using an electronic
locations used in Mineral Resource estimation. level and verified using a Brunton compass.
• Specification of the grid system used. • Drill hole downhole surveys are undertaken using a North-seeking Gyro
instrument.
• Quality and adequacy of topographic control.
• The data are recorded using the WGS84 datum, UTM Zone 34S.
• GPS elevation calibration is undertaken by recording points at a
standard datum point.
Data spacing and • Data spacing for reporting of Exploration Results. • The current drilling is part of the discovery phase targeting massive
distribution sulphide mineralisation. Although sulphide mineralisation has been
• Whether the data spacing and distribution is sufficient to establish intersected it is not intended at this stage to include this in a mineral
the degree of geological and grade continuity appropriate for resource. Seven drill holes were drilled by previous explorers.
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 • The mineralisation is primary magmatic sulphide and is not related to any
relation to geological of possible structures and the extent to which this is known, imposed structural control.
structure considering the deposit type.
• The drill holes have intersected the mineralisation at a low to moderate
• If the relationship between the drilling orientation and the angle to true dip, therefore sampling is representative of the
orientation of key mineralised structures is considered to have mineralisation.
introduced a sampling bias, this should be assessed and
reported if material. • The drilling orientation is appropriate to the intrusion orientation as
currently understood.
Sample security • The measures taken to ensure sample security. • The samples are managed according to Company chain of security
protocols, including storage in a locked core yard, and courier of the
sealed bags directly to the laboratory.
Audits or reviews • The results of any audits or reviews of sampling techniques and • No specific audit of this project has been undertaken. The sampling
data. process is governed by well-established industry and Company
procedures and protocols.
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 Jacomynspan Project 261 has overlapping rights (in respect of
land tenure status agreements or material issues with third parties such as joint differing minerals) held by two companies.
ventures, partnerships, overriding royalties, native title interests,
historical sites, wilderness or national park and environmental • Namaqua Nickel Mining (Pty) Ltd (Namaqua) holds a mining right NC
settings. 10032MR (over Die Plaas No. 387: Whole Farm Hartebeest Pan 175: RE,
Portion 5 Jacomyns Pan 176: RE, Portion 1, Rok Optel 261: RE, Portion 1,
• The security of the tenure held at the time of reporting along with Portion 2, Portion 3) for the mining of Nickel, Copper, Cobalt, PGM, Gold.
any known impediments to obtaining a licence to operate in the This right was granted on 19 September 2016 subject to certain
area. conditions, which include local community participation and financial
guarantees, but is not yet executed.
• Disawell (Pty) Ltd (Disawell) holds two prospecting rights namely NC
30/5/1/1/2/11010 PR (over Jacomyns Pan 176: RE, Portion 1, Portion 2 Rok
Optel 261: RE, Portion 1, Portion 2, Portion 3 Rooi Puts 172: Portion 2,
Portion 3, Portion 4) and NC 30/5/1/1/2/10938 PR (over Hartebeest Pan
175: RE, Portion 3, Portion 4, Portion 5 Farm 387: RE), each for the
exploration of Zinc, Lead, Sulphur.
• Disawell and Namaqua entered into an earn-in agreement with Orion
Minerals, in terms of which Orion (through its subsidiary, Area Metals
Holdings No. 3 (Pty) Ltd is granted the right to invest in these companies.
• No historical or environmental impediments to obtaining an operating
licence are known.
Exploration done by • Acknowledgment and appraisal of exploration by other parties. • Exploration has been undertaken by several parties. The following
other parties companies did drilling on the Jacomynspan Project:
o Anglo American Cooperation: 42 holes;
o Anglo Vaal: 26 holes;
o Alenti: 12 holes; and
o African Nickel: 53 holes.
• Drill records are available and captured into the data base.
• Deposit type, geological setting and style of mineralisation. • The Jacomynspan mineralisation is contained within portions of a
metamorphosed mafic to ultramafic intrusion at least 30 to 70m thick
containing magmatic nickel-copper sulphides. The intrusion is pyroxenite
to harzburgite. The intrusion is enclosed within quartz-feldspar-biotite-
garnet (sillimanite) gneiss country rocks.
Drill hole Information • A summary of all information material to the understanding of the • Refer Appendix 1.
exploration results including a tabulation of the following
information for all Material drill holes:
o easting and northing of the drill hole collar
o elevation or RL (Reduced Level – elevation above sea level in
metres) of the drill hole collar
o dip and azimuth of the hole
o down hole length and interception depth
o hole length.
• If the exclusion of this information is justified on the basis that the
information is not Material and this exclusion does not detract
from the understanding of the report, the Competent Person
should clearly explain why this is the case.
Data aggregation • In reporting Exploration Results, weighting averaging techniques, • The assay data are captured into a standard-format MS-Excel
methods maximum and/or minimum grade truncations (e.g. cutting of spreadsheet within which various derived parameters are calculated.
high grades) and cut-off grades are usually Material and should
be stated.
• The assay data are weighted using the density and interval width to
derive a mass factor that is then applied to the metal grade.
• 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 • The drill holes intersected the mineralisation at predominantly moderate
mineralisation widths Exploration Results. to low angles.
and intercept lengths
• If the geometry of the mineralisation with respect to the drill hole
angle is known, its nature should be reported.
• If it is not known and only the down hole lengths are reported,
there should be a clear statement to this effect (e.g. ‘down hole
length, true width not known’).
Diagrams • Appropriate maps and sections (with scales) and tabulations of • The prospect plan indicates the drilled and planned drill hole localities.
intercepts should be included for any significant discovery being
reported. These should include, but not be limited to a plan view • The intersection data derived from the abovementioned composite
of drill hole collar locations and appropriate sectional views. calculations are presented in the report.
Balanced reporting • Where comprehensive reporting of all Exploration Results is not • In the opinion of the Competent Person, the analytical data has been
practicable, representative reporting of both low and high reported in a responsible and balanced manner.
grades and/or widths should be practiced to avoid misleading
reporting of Exploration Results.
Other substantive • Other exploration data, if meaningful and material, should be • The Time Domain Electromagnetic Surveys were undertaken using a best-
exploration data reported including (but not limited to): geological observations; in-class electromagnetic receiver manufactured by Electromagnetic
geophysical survey results; geochemical survey results; bulk Technologies. The source is a custom-built Time Domain Electromagnetic
samples – size and method of treatment; metallurgical test results; transmitter, capable of transmitting 140 Amps into a 1 x 1km aluminium
bulk density, groundwater, geotechnical and rock characteristics; wire loop. The source is coupled with military grade fluxgate sensors for
potential deleterious or contaminating substances. shallow exploration and super-sensitive high-temperature Super
Conducting Quantum Interference Devices (SQUIDs) manufactured in
Germany, which are state of the art for deeper exploration. The SQUID
system was employed at the ROK4 grid and can detect moderate to
super-conductors to approximately 1,000m below surface. Readings are
taken every 50-100m on 200m-spaced grid lines.
Further work 1. The nature and scale of planned further work (e.g. tests for • Ongoing work includes systematic further drilling and metallurgical test
lateral extensions or depth extensions or large-scale step-out work.
drilling).
2. 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: 23-03-2021 07:10:00
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