From Geoscience Australia
JSON RDF ISO19115-3 XML

Uranium in the Frome Embayment: Recent results from Geoscience Australia's Onshore Energy Security Program

ARCHIVED

Created 14/01/2025

Updated 14/01/2025

JSON RDF ISO19115-3 XML

Australian Phanerozoic basins have been under-explored for uranium. As a result, Geoscience Australia has been conducting research into uranium systems in the Frome Embayment, with the aim of developing a series of models and exploration techniques to assist uranium exploration in other basins. The transport and depositional mechanisms are relatively well understood for sandstone-hosted uranium deposits; uranium is transported by oxidised meteoric fluids and precipitated by either an in situ reductant or by mixing with a reduced fluid. Using the concept that an oxidised fluid will progressively oxidise the rock that it passes through and, in turn the fluid will be reduced by wall rock interactions, potentially we can use drillhole logs to identify and map the redox state of the rocks and hence identify depositional sites. A pilot study was undertaken to determine whether the open file geological logs could be used to map the redox state. A list of oxidised and reduced keywords was identified from the logs. Logs were digitised and oxidised words were given a value of one and reduced words given a value of negative one. Where there was combination of oxidised and reduced words, zero was used to designate the intermediate redox state. Where redox state could not be determined from the logs, a null data value was used. The redox values were imported into gOcad and gridded using DSI and IDW for comparison purposes. The technique identified north-south trending features in the Namba Formation interpreted to be previously unmapped paleochannels. This technique of mapping redox conditions of sediments using open file drilling reports is able to be applied in other basin settings, assisting in the targeting of sandstone-hosted uranium systems.

Files and APIs

Tags

Additional Info

Field Value
Title Uranium in the Frome Embayment: Recent results from Geoscience Australia's Onshore Energy Security Program
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/30fda486-7e1d-4a5a-87d2-5126d2c0b675
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[139.5, -31.0], [140.0, -31.0], [140.0, -30.5], [139.5, -30.5], [139.5, -31.0]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Uranium in the Frome Embayment: Recent results from Geoscience Australia's Onshore Energy Security Program". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/uranium-in-the-frome-embayment-recent-results-from-geoscience-australias-onshore-energy-securit

Original dataset
Dataset copies

No duplicate datasets found.