This video presents a case study on the use of hyperspectral remote sensing imagery to study hydrothermal alteration systems in a 3.2 Ga Archean volcano-sedimentary sequence.
It show very nicely how subtle differences in the chemical composition of white mica minerals play a key role in the mapping and recognition of a hydrothermal system developed in the Archean times. It also demonstrates the potential for hyperspectral imagery to identify zones where deposition of metals occurred during the time of hydrothermal fluid circulation.
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