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Analysis of Clays in Mining Exploration

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Analysis of Clays in Mining Exploration

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The accurate identification of clays in mineral assemblages can provide key indications of the presence (or absence) of mineralized systems. Using a field portable NIR spectrometer that can identify different clays and note when and where they alter, can help a geologist in many situations where visual identification is not possible, both in the field and in the core shack. Mapping of alteration zones can provide useful information that indicates vectors to undiscovered deposits For example, low sulfidation assemblages might be characterized by clay minerals such as illite, montmorillonite and sericite. High sulfidation might be characterized by kaolinite and alunite. The ability to identify the different clay minerals, especially in mixed clay assemblages is critical to creating an accurate mineral map.

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