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Exploring for the Future – New SHRIMP geochronology constraints on the basin evolution of the South Nicholson region

Created 16/10/2025

Updated 16/10/2025

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This Record presents twelve new zircon U-Pb geochronological results from the South Nicholson region, conducted on Geoscience Australia’s Sensitive High Resolution Ion Micro Probe (SHRIMP), as part of the Commonwealth Government’s Exploring for the Future (EFTF) program, an initiative to better understand the mineral, energy and groundwater potential of northern Australia. These data will facilitate greater understanding of the geological evolution of the South Nicholson region, a vast and underexplored region extending across north-eastern Northern Territory and far north-western Queensland. Samples were collected from across the South Nicholson region including MOUNT DRUMMOND, CALVERT HILLS, BRUNETTE DOWNS (NT), LAWN HILL and CAMOOWEAL (QLD) 250K mapsheets. Four samples are from outcrop and eight samples from six stratigraphic and exploration drillholes. Samples were collected from the Paleoproterozoic Murphy Province and from overlying successions of the Paleoproterozoic Benmara Group and the Mesoproterozoic South Nicholson Group. Several samples from drillholes, have stratigraphic affinities that are uncertain and speculative.

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Title Exploring for the Future – New SHRIMP geochronology constraints on the basin evolution of the South Nicholson region
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/ce7ba6f2-a7be-45e8-a7c2-1d73189b533d
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 08/04/2019
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        135.0,
        -21.0
      ],
      [
        140.0,
        -21.0
      ],
      [
        140.0,
        -17.0
      ],
      [
        135.0,
        -17.0
      ],
      [
        135.0,
        -21.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Exploring for the Future – New SHRIMP geochronology constraints on the basin evolution of the South Nicholson region". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/exploring-for-the-future-new-shrimp-geochronology-constraints-on-the-basin-evolution-of-the-sou