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A recently discovered unconformity near the base of the Proterozoic Cloncurry Complex south of Mount Isa, northwestern Queensland

Created 17/10/2025

Updated 17/10/2025

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Recent mapping of Precambrian rocks in the southwestern part of the Mount Isa-Cloncurry region has revealed for the first time a major unconformity between the Kalkadoon Granite-Leichhardt Metamorphics basement complex and overlying regionally metamorphosed basic and acid volcanic units tentatively correlated with the Magna Lynn Metabasalt and Argylla Formation, respectively. These units flank the western margin of the basement complex, and are overlain, apparently conformably, by the Mount Guide Quartzite.

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Title A recently discovered unconformity near the base of the Proterozoic Cloncurry Complex south of Mount Isa, northwestern Queensland
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/cf411752-2e37-46a3-8a8f-b074fffa45cf
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        139.5,
        -21.5
      ],
      [
        140.0,
        -21.5
      ],
      [
        140.0,
        -21.0
      ],
      [
        139.5,
        -21.0
      ],
      [
        139.5,
        -21.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "A recently discovered unconformity near the base of the Proterozoic Cloncurry Complex south of Mount Isa, northwestern Queensland". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/a-recently-discovered-unconformity-near-the-base-of-the-proterozoic-cloncurry-complex-south-of-