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National ASTER Map MgOH group content

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Created 13/01/2025

Updated 13/01/2025

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Band ratio: (B6+B9/(B7+B8) Blue is low content, Red is high content (potentially includes: calcite, dolomite, magnesite, chlorite, epidote, amphibole, talc, serpentine) Useful for mapping: (1) "hydrated" ferromagnesian rocks rich in OH-bearing tri-octahedral silicates like actinolite, serpentine, chlorite and talc; (2) carbonate-rich rocks, including shelf (palaeo-reef) and valley carbonates(calcretes, dolocretes and magnecretes); and (3) lithology-overprinting hydrothermal alteration, e.g. "propyllitic alteration" comprising chlorite, amphibole and carbonate. The nature (composition) of the silicate or carbonate mineral can be further assessed using the MgOH composition product.

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Field Value
Title National ASTER Map MgOH group content
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/31e39e22-bae4-4505-ba3e-9dc199c5c2c7
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 11/04/2018
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

Data Source

This dataset was originally found on data.gov.au "National ASTER Map MgOH group content". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/national-aster-map-mgoh-group-content

Original dataset
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No duplicate datasets found.