To assist the mining industry during the current buoyant times of historically high nickel and platinum-group element prices, Geoscience Australia has produced two web-based map sheets (at 1:5 million and 1:10 million scales) that show the spatial distribution of Proterozoic (2500 Ma to 545 Ma) mafic-ultramafic magmatic events in Australia. The maps illustrate for the first time, the continental extent and age relationships of Proterozoic mafic and ultramafic rocks and their associated mineral deposits. These rocks have been assigned to thirty Magmatic Events (ME) that range in age from the Early Palaeoproterozoic ~2455 Ma (ME 1) to the Early Cambrian ~520 Ma (ME 30).
Record 2008/15 (Geocat 66624) is a user guide for the `Australian Proterozoic Mafic-Ultramafic Magmatic Events' map (Geocat 66114). It compiles all the geological and geochronological data that underpins the information portrayed on the map. The key objectives of this user guide are to:
- summarise the scope, scientific rationale, and methodology of the study;
- describe the digital datasets (e.g., solid geology, geological province, geochronology, mineral resources, geophysics, etc) that underpin the information portrayed on the maps; and
- document the attribution data and publications used for characterising and assigning magmatic events to the Proterozoic mafic-ultramafic units.
Related products:
Australian Proterozoic Mafic-Ultramafic Magmatic Events: Map Sheets 1 and 2
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
