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Solid Geology of the Tennant Creek – Mt Isa area

Created 17/10/2025

Updated 17/10/2025

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Solid geology of the Tennant Creek to Mount Isa (TISA) area comprises four layers, namely: Mesozoic, Paleozoic, Neoproterozoic and Pre-Neoproterozoic. This is the first staged release of Geoscience Australia's national time based solid geology mapping program commenced under the Federal Government’s Exploring for the Future program. This product will be updated as the solid geology program progresses. The solid geology layers were produced by interpretation of magnetic and gravity datasets and reference to available solid and surface geology maps, particularly GA's 1:1 M scale surface geology of Australia (2012), published 1:250 k scale map sheets, and the Northern Territory Geological Survey's solid geology maps of the Pine Creek (2005) and Tennant regions (2004). Drill hole constraints have been utilised where possible. Interpretations were compiled at 1:250 k scale and the final product is best utilised at this scale. Notably this release reveals the concealed extent of the Cambrian basalts of the Kalkarindji Igneous Suite, which extend over a large part of the TISA area.

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Additional Info

Field Value
Title Solid Geology of the Tennant Creek – Mt Isa area
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/54e00927-4061-407b-9d00-06e79dccb78e
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 15/03/2018 - 30/06/2019
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        133.5,
        -21.0
      ],
      [
        140.9,
        -21.0
      ],
      [
        140.9,
        -15.0
      ],
      [
        133.5,
        -15.0
      ],
      [
        133.5,
        -21.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Solid Geology of the Tennant Creek – Mt Isa area". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/solid-geology-of-the-tennant-creek-mt-isa-area