Investor Presentaiton
B
Criteria
Appendix B: JORC (2012) Code Table 1
The source documents for the "Appendix B: JORC (2012) Code Table 1" are listed in the "References" for the ASX Release.
JORC Code explanation
Sampling techniques
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Drilling techniques
Drill sample recovery
Logging
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Sub-sampling techniques and
sample preparation
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Commentary
Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry.
standard measurement tools appropriate to the minerals under investigation, such as down
hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as
limiting the broad meaning of sampling.
Include reference to measures taken to ensure sample representivity and the appropriate
calibration of any measurement tools or systems used.
Aspects of the determination of mineralisation that are Material to 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.
Drill type (e.g. core, reverse circulation, open-hole hammer, rotary 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).
Method of recording and assessing core and chip sample recoveries and 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.
Whether core and chip samples have been geologically and geotechnically 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.
If core, whether cut or sawn and whether quarter, half or all core taken.
If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.
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.
Not Applicable for the current ASX Release.
Not Applicable for the current ASX Release.
Not Applicable for the current ASX Release.
Not Applicable for the current ASX Release.
Not Applicable for the current ASX Release.
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Whether sample sizes are appropriate to the grain size of the material being sampled.
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