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Nabberu - Widgiemooltha, aeromagnetic interpretation

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Created 20/01/2025

Updated 20/01/2025

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The map addresses the distribution of Archaean rocks of the Yilgarn Craton but includes interpretation of overlying Proterozoic rocks (Yerida, and Earaheedy groups). Interpretation was undertaken at 1:250 000 scale for AGSO aeromagnetic data (400m and 1500m linespacing data) and for Fugro Airborne Surveys Pty.Ltd. coverage of the Menzies Sheet (200m linespacing data), and 1:500 000 scale for Fugro Airborne Surveys Pty.Ltd. coverage of the Kalgoorlie, Kurnalpi and Widgiemooltha Sheets (200m linespacing data). The Archaean rocks are subdivided into undivided gneiss-migmatite-granite (Agmg), banded gneiss (Agn), greenstone (Aa), and granite plutons (Ag). Where important relative differences in magnetisation are mapped, the geophysical map units include the suffixes _h (high), _m (medium), _l (low) and _r (remanent) for the level of magnetisation. Dykes, faults, and unassigned small intrusives are also mapped. The map is derrived from a subset of a more extensive interpretation covering the exposed extent of the Yilgarn Craton.

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Title Nabberu - Widgiemooltha, aeromagnetic interpretation
Language eng
Licence Not Specified
Landing Page https://devweb.dga.links.com.au/data/dataset/7a84980c-0bf3-4e3f-b91c-1789fea85969
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        120.0,
        -32.0
      ],
      [
        123.0,
        -32.0
      ],
      [
        123.0,
        -25.0
      ],
      [
        120.0,
        -25.0
      ],
      [
        120.0,
        -32.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Data.gov.au