Axiom 2014 Annual Report - page 20

18
Axiom Mining Limited
Sampling Techniques and Data
Criteria
JORC Code explanation
Commentary
Sampling techniques
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 1m 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.
ISABEL NICKEL PROJECT
HQ triple tube core delivered to
laboratory in tray or bagged into the
geological sample interval
––
Whole core samples were marked
up and sampled in the laboratory.
––
Handheld XRF analyser was used
in field for initial analysis on
25cm and 10cm intervals to assist
in geological mapping.
WEST GUADALCANAL PROJECT
Drill core samples collected using half
core from PQ and HQ triple tube drilling
using an Atlas Copco CS-1000 drill rig.
The core is sampled according to the
geologist with samples no larger than
1.5m intervals.
The core is halved using a diamond
core saw on site and transported to the
laboratory specified below.
Trenches are hand or mechanically
excavated to 1.5m depth or to C-horizon
subcrop.
Samples are taken at the base of trenches
and benches in continuous cut channels
with samples aggregated over measured
0.5m, 1.0m or 2.0m intervals.
Trenching samples obtained from cut
channels at 0.5m to 1.0m intervals
weighing less than 2.0 kg were
transported to Intertek Laboratories in
Honiara for sample preparation prior to
fire assay for Au and aqua-regia digest
for ICP finish at Intertek Laboratories,
Townsville; for the following elements
and lower detection limit in ppm
(Au (0.01), Ag (0.05)).
Drilling techniques
Drill type (eg 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).
ISABEL NICKEL PROJECT
Diamond drill core. All holes were drilled
vertically through the limonite and
saprolite zones into underlying basement.
WEST GUADALCANAL PROJECT
Diamond drill core.
Drilling commenced using PQ triple tube
and extended as far as possible (around
60m). Then the hole continued with HQ
triple tube core to EOH.
Core orientation is used where possible.
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