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Australian Proterozoic Mafic-Ultramafic Magmatic Events: Map Sheets 1 and 2

Created 16/10/2025

Updated 16/10/2025

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Two full-colour map sheets (at 1:5 million and 1:10 million scales) that show the continental extent and age relationships of Proterozoic mafic and ultramafic rocks and associated mineral deposits throughout the continent. These rocks have been assigned to 30 Magmatic Events (ME) ranging in age from the Early Palaeoproterozoic ~2455 Ma (ME 1) to the Early Cambrian ~520 Ma (ME 30). The presence and correlation of these Magmatic Events into five Major Crustal Elements and 28 provinces are represented in a Time-Space-Event Chart on Sheet 2. Enlarged inset maps on Sheet 1 provide in more detail the polygon and line data of certain regions, and other inset maps on Sheet 2 show the distribution of Proterozoic and Archaean rocks, mineral deposits and occurrences, and five Large Igneous Provinces (LIPs). This national map supersedes two similar 'Proterozoic Mafic-Ultramafic Magmatic Events' maps relating to Western Australia (2006; GeoCat 64813) and the Northern Territory-South Australia (2007; GeoCat 65257). A user guide to the map series is described in Geocat 66624. A georeferenced image of the map Australian Proterozoic Mafic-Ultramafic Magmatic Events (Sheet 1) is also provided. The image shows spatial distribution of Proterozoic (2500 Ma to 545 Ma) mafic-ultramafic magmatic events in Australia. The map illustrates for the first time, the continental extent and age relationships of Proterozoic mafic and ultramafic rocks and their associated mineral deposits.
The image has been georeferenced using ESRI ArcGIS 9.3 software. Projection: Lambert Conformal Conic Datum: Geocentric Datum of Australia 1994 False Easting: 0.00000000 False Northing: 0.00000000 Central Meridian: 134.00000000 Standard Parallel 1: -18.00000000; Standard Parallel 2: -36.00000000 Latitude Of Origin: 0.00000000 The package contains five files contained in a ZIP file [ZIP 25MB]: geo_national_mafic_part1_300dpi1.rrd geo_national_mafic_part1_300dpi1.xml geo_national_mafic_part1_300dpi1.aux geo_national_mafic_part1_300dpi1.jpg geo_national_mafic_part1_300dpi1.jwg Related products: Guide to Using the Australian Proterozoic Mafic-Ultramafic Magmatic Events Map Proterozoic Mafic-Ultramafic Magmatic Events Resource Package Archean Mafic-Ultramafic Magmatic Events Resource Package Guide to using the Australian Archean Mafic-Ultramafic Magmatic Events Map Proterozoic Large Igneous Provinces: Map Sheets 1 and 2 Guide to using the Map of Australian Proterozoic Large Igneous Provinces

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Additional Info

Field Value
Title Australian Proterozoic Mafic-Ultramafic Magmatic Events: Map Sheets 1 and 2
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/24afba89-f52b-4073-8f13-bd7ddbc5fa74
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        112.0,
        -45.0
      ],
      [
        155.0,
        -45.0
      ],
      [
        155.0,
        -10.0
      ],
      [
        112.0,
        -10.0
      ],
      [
        112.0,
        -45.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Australian Proterozoic Mafic-Ultramafic Magmatic Events: Map Sheets 1 and 2". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/australian-proterozoic-mafic-ultramafic-magmatic-events-map-sheets-1-and-2