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Sub-sampling techniques and
sample preparation
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· 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 insitu material
collected, including for instance results for field
duplicate/second-half sampling.
· Whether sample sizes are
appropriate to the grain size of the material being
sampled.
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· Rock chip samples
were dispatched to ALS Global Laboratories in Perth for analysis
using their ME_MS89L 55 element technique.
· The laboratory
reported the use of standards and blanks as part of the analyses
for QA/QC.
· The samples were
opportunistic in nature and taken from insitu outcrop.
· Samples were
approximately 0.5kg to 1kg in weight.
· The samples were
considered generally representative of the outcrop being
sampled.
Greentech Soil
Sampling 2024
· The soil samples
were uniformly collected from 15cm, with colour, moisture and
general topography recorded.
· Four Acid
Digestion With ICP-MS Finish ME-MS61L-REE (0.25g sample), includes
REE elements.
· Ag, Al, As, Ba,
Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, Ge, Hf, In, K, La, Li,
Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Pd, Pt, Rb, Re, S, Sb, Sc, Se, Sn,
Sr, Ta, Te, Th, Ti, Tl, U, V, W, Y, Zn, Zr. Dy, Er, Eu, Gd, Ho, Lu,
Nd, Pr, Sm, Tb, Tm, Yb
· Samples are
pulverised to 85% passing 75 microns for maximum
digestion.
Artemis Soil
Sampling 2018
· The soil samples
were uniformly collected from 15cm, with colour, moisture and
general topography recorded.
· The AuME-ST44 is
an aqua regia digest with ICP-MS finish for multi-element analysis
including: Au, Ag, Al, As, B, Ba, Be, Bi, Ca, Cd, Ce. Co, Cr, Cs,
Cu, Fe, Ga, Ge, Hf, Hg, In, K, La, Li, Mg, Mn, Mo, Na, Nb, Ni, P,
Pb, Pd, Pt, Rb, Re, S, Sb, Sc, Se, Sn, Sr, Ta, Te, Th, Ti, Tl, U,
V, W, Y, Zn, Zr
· Samples are
pulverised to 95% passing 75 microns for maximum
digestion.
· Field duplicates
were taken and submitted for analysis with the soil
samples.
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Quality of assay data and
laboratory tests
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· The nature, quality and
appropriateness of the assaying and laboratory procedures used and
whether the technique is considered partial or
total.
· For geophysical tools,
spectrometers, handheld XRF instruments, etc, the parameters used
in determining the analysis including instrument make and model,
reading times, calibrations factors applied and their derivation,
etc.
· Nature of quality control
procedures adopted (eg standards, blanks, duplicates, external
laboratory checks) and whether acceptable levels of accuracy (ie
lack of bias) and precision have been
established.
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· Rock chip samples
were dispatched to ALS Global Laboratories in Perth for analysis
using their ME_MS89L 55 element technique.
· The laboratory
reported the use of standards and blanks as part of the analyses
for QA/QC.
· No standards or
blanks were submitted by the company.
Greentech Soil
Sampling 2024
· The soil samples
were uniformly collected from 15cm, with colour, moisture and
general topography recorded.
· Four Acid
Digestion With ICP-MS Finish ME-MS61L-REE (0.25g sample), includes
REE elements.
· Ag, Al, As, Ba,
Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, Ge, Hf, In, K, La, Li,
Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Pd, Pt, Rb, Re, S, Sb, Sc, Se, Sn,
Sr, Ta, Te, Th, Ti, Tl, U, V, W, Y, Zn, Zr. Dy, Er, Eu, Gd, Ho, Lu,
Nd, Pr, Sm, Tb, Tm, Yb
· Samples are
pulverised to 85% passing 75 microns for maximum
digestion.
Artemis Soil
Sampling 2018
· ALS (Perth) were
used for all analysis of samples submitted by Artemis. The
laboratory techniques below are for all samples submitted to ALS
and are considered appropriate for the styles of mineralisation
within the Karratha region:
· The AuME-ST44 is
an aqua regia digest with ICP-MS finish for multi-element analysis
including: Au, Ag, Al, As, B, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr,
Cs, Cu, Fe, Ga, Ge, Hf, Hg, In, K, La, Li, Mg, Mn, Mo, Na, Nb, Ni,
P, Pb, Pd, Pt, Rb, Re, S, Sb, Sc, Se, Sn, Sr, Ta, Te, Th, Ti, Tl,
U, V, W, Y, Zn, Zr
· Samples are
pulverised to 95% passing 75 microns for maximum
digestion.
· Field duplicates
were taken and submitted for analysis with the soil
samples.
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