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Crustal setting of the Olympic Cu-Au province

Created 17/10/2025

Updated 17/10/2025

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Deep seismic reflection profiles and potential-field data show that the crustal architecture of the Olympic Cu-Au province in the vicinity of the giant Olympic Dam deposit is dominated by northwest-trending thrusts that acted as first-order fluid-pathways for its IOCG mineralising system. The thrusts were initiated sometime between the end of the Archaean and the late Palaeoproterozoic (~2.5 Ga to ~1.6 Ga), probably during the Kimban Orogeny (~1.73 Ga), and reactivated during a far-field response to convergence at ~1.6 Ga. Comparisons with the tectonics governing the mineralisation in the Andean margin demonstrate that extensional characteristics of the IOCG systems in that setting were also produced in response to convergence. Fe-oxide alteration in the Olympic Cu-Au province is readily detected in potential-field data and its distribution can be mapped, in 3-D, via inversion methods.

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Field Value
Title Crustal setting of the Olympic Cu-Au province
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/68eaca39-0ce6-4749-9e7d-286572d9508d
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        136.5,
        -31.0
      ],
      [
        137.25,
        -31.0
      ],
      [
        137.25,
        -30.0
      ],
      [
        136.5,
        -30.0
      ],
      [
        136.5,
        -31.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Crustal setting of the Olympic Cu-Au province". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/crustal-setting-of-the-olympic-cu-au-province