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Report on organic petrology and maturation in a suite of samples from the Birrindudu basin, Northern Territory

Created 17/10/2025

Updated 17/10/2025

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This study was commissioned by Geoscience Australia (GA) as part of the Resourcing Australia’s Prosperity initiative to produce a report on the organic petrology of rock samples from drill holes in the Birrindudu Basin, Northern Territory, Australia. A suite of 97 drill core samples from 5 drill holes was analysed using standard organic petrological methods to identify the types of organic matter present, assess their relative abundances and determine the levels of thermal maturity attained by the sedimentary organic matter using the reflectance of organoclasts present. The primary organic matter identified was non-fluorescing coalified alginite, likely from filamentous cyanobacteria, along with significant graphite in 10 samples from the undifferentiated basement. The graphite likely formed through contact metamorphism and tectonic shearing. Secondary organic matter included bitumen, diffused unstructured organic matter, and dead oil droplets.

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Field Value
Title Report on organic petrology and maturation in a suite of samples from the Birrindudu basin, Northern Territory
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/135c9bec-9950-4405-b97f-d77215c77cdf
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period
Geospatial Coverage
Map data © OpenStreetMap contributors
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Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Report on organic petrology and maturation in a suite of samples from the Birrindudu basin, Northern Territory". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/report-on-organic-petrology-and-maturation-in-a-suite-of-samples-from-the-birrindudu-basin-nort