Exploration Geochemistry – Basic
Principles & Concepts
Soil Geochemistry
Dr. David Lawie
ioGlobal
www.ioglobal.net
Exploration Geochemistry – Basic Principles & Concepts
© ioGlobal Pty Ltd Soil geochemistry / selective extractions / soil gases
, Outline
Considerations prior to starting
Scale of sampling
Soils and Soil Development
Sites for Hosting Anomalies Within Soils
Sampling Protocols
Methods of Analysis & Challenges
Anomaly Formation
Some Final Comments
Exploration Geochemistry – Basic Principles & Concepts
© ioGlobal Pty Ltd Soil geochemistry / selective extractions / soil gases
, Why/Purpose?
Direct detection of mineralisation via its weathered residues
(ore components, alteration products and dispersions
thereof)
Geological mapping and identifying areas of endowment
Can be applied at a number of scales especially for the latter
purpose
Availability of modern, high quality multi-element data has
expanded the scope of the application soil sampling
programs
Exploration Geochemistry – Basic Principles & Concepts
© ioGlobal Pty Ltd Soil geochemistry / selective extractions / soil gases
, Soil
From CRC-LEME newsletter
Exploration Geochemistry – Basic Principles & Concepts
© ioGlobal Pty Ltd Soil geochemistry / selective extractions / soil gases
Principles & Concepts
Soil Geochemistry
Dr. David Lawie
ioGlobal
www.ioglobal.net
Exploration Geochemistry – Basic Principles & Concepts
© ioGlobal Pty Ltd Soil geochemistry / selective extractions / soil gases
, Outline
Considerations prior to starting
Scale of sampling
Soils and Soil Development
Sites for Hosting Anomalies Within Soils
Sampling Protocols
Methods of Analysis & Challenges
Anomaly Formation
Some Final Comments
Exploration Geochemistry – Basic Principles & Concepts
© ioGlobal Pty Ltd Soil geochemistry / selective extractions / soil gases
, Why/Purpose?
Direct detection of mineralisation via its weathered residues
(ore components, alteration products and dispersions
thereof)
Geological mapping and identifying areas of endowment
Can be applied at a number of scales especially for the latter
purpose
Availability of modern, high quality multi-element data has
expanded the scope of the application soil sampling
programs
Exploration Geochemistry – Basic Principles & Concepts
© ioGlobal Pty Ltd Soil geochemistry / selective extractions / soil gases
, Soil
From CRC-LEME newsletter
Exploration Geochemistry – Basic Principles & Concepts
© ioGlobal Pty Ltd Soil geochemistry / selective extractions / soil gases