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Under the Nullarbor: New SHRIMP U-Pb zircon ages from the Coompana, Madura and Albany-Fraser Provinces, and Officer Basin, western South Australia and eastern Western Australia

Created 17/10/2025

Updated 17/10/2025

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In this Record new U-Pb SHRIMP zircon results are presented from nine samples from western South Australia and eastern Western Australia. This geochronological study was undertaken to provide temporal constraints on the crystalline basement geology beneath the Nullarbor Plain, to assist in geological interpretation of a reflection seismic transect (13GA-EG1) between the Albany-Fraser Province in the west and the central Gawler Craton in the east. This seismic line transects a region in which the crystalline basement geology is entirely buried beneath Neoproterozoic to Cenozoic sedimentary rocks. Consequently, the age, tectonic evolution and mineral potential of the crystalline basement in this region is very poorly understood. The new results complement the very limited pre-existing geochronology data from the Coompana Province and Madura Province, and provide a basis for comparison of geological ages in these provinces with the geological histories reconstructed for the adjacent provinces of the Gawler Craton to the east and the Albany-Fraser Province to the west.

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Title Under the Nullarbor: New SHRIMP U-Pb zircon ages from the Coompana, Madura and Albany-Fraser Provinces, and Officer Basin, western South Australia and eastern Western Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/5ba5ab9e-5ffc-43a6-a245-38cb20bdb104
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
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Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Under the Nullarbor: New SHRIMP U-Pb zircon ages from the Coompana, Madura and Albany-Fraser Provinces, and Officer Basin, western South Australia and eastern Western Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/under-the-nullarbor-new-shrimp-u-pb-zircon-ages-from-the-coompana-madura-and-albany-fraser-prov