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National ASTER Map FeOH group content

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Created 14/01/2025

Updated 14/01/2025

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Band ratio: (B6+B8)/B7 Blue is low content, Red is high content (potentially includes: chlorite, epidote, jarosite, nontronite, gibbsite, gypsum, opal-chalcedony) Useful for mapping: (1) jarosite (acid conditions) - in combination with ferric oxide content (high); (2) gypsum/gibbsite - in combination with ferric oxide content (low); (3) magnesite - in combination with ferric oxide content (low) and MgOH content (moderate-high) (4) chlorite (e.g. propyllitic alteration) - in combination with Ferrous in MgOH (high); and (5) epidote (calc-silicate alteration) - in combination with Ferrous in MgOH (low).

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Title National ASTER Map FeOH group content
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/ff616945-1474-4b13-9cc5-4bab9e678e5b
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 10/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[111.5, -44.5], [155.0, -44.5], [155.0, -9.0], [111.5, -9.0], [111.5, -44.5]]]}
Data Portal data.gov.au