From Geoscience Australia
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

National ASTER Map Ferrous iron content in MgOH/carbonate

Created 16/10/2025

Updated 16/10/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Band ratio: B5/B4 Blue is low ferrous iron content in carbonate and MgOH minerals like talc and tremolite. Red is high ferrous iron content in carbonate and MgOH minerals like chlorite and actinolite. Useful for mapping: (1) un-oxidised "parent rocks" - i.e. mapping exposed parent rock materials (warm colours) in transported cover; (2) talc/tremolite (Mg-rich - cool colours) versus actinolite (Fe-rich - warm colours); (3) ferrous-bearing carbonates (warm colours) potentially associated with metasomatic "alteration"; (4) calcite/dolomite which are ferrous iron-poor (cool colours); and (5) epidote, which is ferrous iron poor (cool colours) - in combination with FeOH content product (high).

Files and APIs

Tags

Additional Info

Field Value
Title National ASTER Map Ferrous iron content in MgOH/carbonate
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/31d459cb-411f-41e0-be3f-b7da5cb211f5
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 11/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        111.5,
        -44.5
      ],
      [
        155.0,
        -44.5
      ],
      [
        155.0,
        -9.0
      ],
      [
        111.5,
        -9.0
      ],
      [
        111.5,
        -44.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "National ASTER Map Ferrous iron content in MgOH/carbonate". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/national-aster-map-ferrous-iron-content-in-mgoh-carbonate