Axiom 2014 Annual Report - page 21

19
2014 Annual Report
Criteria
JORC Code explanation
Commentary
Drill sample
recovery
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.
ISABEL NICKEL PROJECT
HQ diamond coring was by triple tube
to maximise core recovery.
Sample recovery exceeded 90% in all
holes. In some cases cavities or core
losses were in defined zones—these were
marked by spacers within the trays and
noted in drillers’ logs.
WEST GUADALCANAL PROJECT
All core is recovered from the core barrel
and placed in core trays on site, cleaned,
and then transported to the local core
yard for processing.
Recovery has generally been close to
100% except in the top 15m. Recoveries
are recorded.
Logging
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.
ISABEL NICKEL PROJECT
All diamond core holes were:
––
marked up for recovery calculations
––
geology marked up and logged
––
photographed
––
weighed by tray one day after
drilling (wet density less water
added in drilling process) – selected
core was weighed weekly and
at laboratory for solar drying
responses.
Core was geotechnically logged for
hardness, fractures, fracture orientation,
recovery and mining characteristics.
All laterite intersections were analysed
by in field handheld XRF analyser to
assist geological mapping, followed by
standard laboratory techniques for both
mine grade values and trace elements.
Moisture readings one day after drilling
and, in selected trays, weekly.
WEST GUADALCANAL PROJECT
Geology, alteration, structure and
geotechnical aspects have been recorded
in the core logs.
All whole core has been wet and dry
photographed.
The entire length of hole has been logged.
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