Geochemistry Guide 2025

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GO_XRF72 BORATE FUSION / WD XRF WHOLE ROCK PACKAGE Analyte Reported as Package

Package-P

Package Maj/Min

Range

Majors

Al

Al 2 O 3 As 2 O 3 BaO Bi 2 O 3

X

X X X X X X X X

X

0.01 - 100%

Extension/Optional Oxide 0.01 - 5%

As Ba

X

X

0.01 - 70%

Extension/Optional Oxide 0.01 - 5%

Bi

Ca

CaO

X

X X X X X

0.01 - 60% 0.01 - 30% 0.01 - 5% 0.01 - 5% 0.01 - 5%

Cl

Cl

Co 3 O 4 Cr 2 O 3

Co

Cr

Cu

CuO

F

F

Extension/Optional element 0.5 - 50%

Fe 2 O 3 HfO 2

X

X

X

0.01 - 100%

Fe Hf

Extension/Optional Oxide 0.01 - 5%

K 2 O

X X X

X X X

X X X

0.01 - 70% 0.01 - 100% 0.01 - 100%

K

Mg Mn Mo

MgO

Mn 3 O 4 MoO 3 Na 2 O NiO P 2 O 5 PbO Rb 2 O Sb 2 O 3

Extension/Optional Oxide 0.01 - 5%

X

X

X X X

0.01 - 60% 0.01 - 5% 0.01 - 55%

Na

Ni

X

X

X

P

Pb Rb Sb

X

Extension/Optional Oxide 0.01 - 5% Extension/Optional Oxide 0.01 - 5% Extension/Optional Oxide 0.01 - 5%

X

X

X

0.01 - 100%

Si

SiO 2 SnO 2

X

Extension/Optional Oxide 0.01 - 5%

Sn

X

X

X X

0.01 - 10% 0.01 - 5%

S

SO 3 SrO

Lithogeochemistry

Sr Ta Th

X

Ta 2 O 5 ThO 2 TiO 2 U 3 O 8 V 2 O 5 WO 3 ZnO ZrO 2

Extension/Optional Oxide 0.01 - 5% Extension/Optional Oxide 0.01 - 1%

Lithogeochemical analysis is used for basic rock characterisation based on major, minor and trace element chemistry. It requires whole rock analytical methods to ensure that refractory minerals such as zircon and chromite are fully dissolved. Lithogeochemical analysis may be used in exploration programs for identification of different rock types that might occur in drill core or at outcrop, particularly when primary lithologies are obscured by subsequent alteration or metamorphic events. Lithogeochemical analysis is also used by geological surveys undertaking geological mapping projects, by researchers studying geological, geochemical and petrological processes and by oil companies requiring complete rock characterization for calibrating core responses to borehole sensors.

X

X

X

0.01 - 100%

Ti U

Extension/Optional Oxide 0.01 - 5%

X

X

X

0.01 - 10%

V

Extension/Optional Oxide 0.01 - 5%

W Zn

X X X

X X

0.01 - 5% 0.01 - 5% -10 - 100%

Zr

LOI (1000 0 C)*

X

X

≥ 0.01%

Moisture (as received)

Optional

Optional

Optional

* G_PHY01V or G_PHY02V Unmineralized whole rock analysis; for commodities and specific matrices refer to commodity section. Specialized whole rock XRF packages are available for mineral sands exploration programs For Ferrous iron (FeO) see page 50.

GO_ICP95A50 LITHIUM METABORATE FUSION / ICP-OES (LITHOLOGIC) PACKAGE ELEMENTS AND LIMIT(S) Al 2 O 3 0.01 - 75% MnO 0.01 - 10%

*LOI -10 - 100%

Na 2 O 0.01 - 30% P 2 O 5 0.01 - 25% SiO 2 0.01 - 90% TiO 2 0.01 - 25%

CaO 0.01 - 60% Cr 2 O 3 0.01 - 10% Fe 2 O 3 0.01 - 75% K 2 O 0.01 - 25%

MgO 0.01 - 30% V 2 O 5 0.01 - 10% This is the recommend package for Whole Rock Analysis. Ba, Nb, Sc, Sr, Y, Zn and Zr can be added upon request. * G_PHY01V or G_PHY02V

SULPHUR AND CARBON CODE

ELEMENT

LIMIT(S)

DESCRIPTION IR combustion

GO_CSA06V

S C

0.01 - 75% 0.01 - 75%

Carbon and sulphur can be speciated using a variety of methods.

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