Product catalogue
Middle Cambrian chemostratigraphy and biostratigraphy in the southern Georgina Basin: correlating the Arthur Creek a “hot shale”
The Georgina Basin is a Neoproterozoic to Lower Devonian sedimentary basin covering 325,000 km<sup>2</sup> of western Queensland and the Northern Territory. It is a northwest-southeast-trending extensional basin, with prospective conventional and unconventional hydrocarbon targets within Cambrian and Ordovician carbonate and siliciclastic rock units in the southern depocentres.
Recent biostratigraphic work has highlighted an age discrepancy in the prospective organic-rich `hot shale' in the base of the middle Cambrian Arthur Creek Formation. This unit is present in the two major southern depocentres, the Dulcie and Toko synclines, where it has previously been considered as correlative. Recent results, however, suggest that the basal `hot shale' is either significantly younger in the Toko Syncline than in the Dulcie Syncline, or represents a very condensed section in the former.
Middle Cambrian carbon isotope excursions have been correlated across a number of Australian basins and can be used to test correlative models across the Georgina depocentres. In the current study, high resolution sampling across this middle Cambrian section has been carried out in a number of wells in the Dulcie Syncline and in the Undilla Sub-basin, where the age equivalent Inca Shale is penetrated. Carbon isotopes from organic carbon (kerogen) as well as carbon and oxygen isotope ratios of four carbonate mineral phases (calcite, ankerite, dolomite and siderite) were analysed. These new data are compared with the existing carbon isotope stratigraphy from the Dulcie and Toko synclines. Initial results corroborate the new biostratigraphic interpretation. This work will provide a detailed understanding of middle Cambrian isotope signatures and correlate this prospective unit across the southern Georgina Basin.
Abstract presented at AAPG/SEG International Conference & Exhibition, Melbourne, Australia, September 13-16, 2015
Simple
Identification info
- Date (Publication)
- 2015-01-01T00:00:00
- Date (Revision)
- 2019-05-13T08:35:14
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/90679
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Geoscience Australia
Canberra Author Smith, T.E.
1 Author Laurie, J.R.
2 Author Edwards, D.S.
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AAPG-SEG International Conference and Exhibition, September 13-16, 2015, Melbourne, Australia
- Purpose
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Abstract for the AAPG/SEG International Conference & Exhibition, 2015
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Resource provider Minerals, Energy and Groundwater Division
External Contact Point of contact Edwards, D.
MEG Internal Contact
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- Geoscientific information
Extent
))
- Maintenance and update frequency
- Not planned
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Product data repository: Various Formats
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
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External Publication
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- Australian and New Zealand Standard Research Classification (ANZSRC)
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Earth Sciences
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Published_External
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Georgina Basin
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Biostratigraphy
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Arthur Creek Formation
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Inca Shale
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Unconventional Hydrocarbons
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Resource Assesment
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- Keywords
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Stable Carbon isotopes
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Stable Oxygen isotopes
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Resource constraints
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Creative Commons Attribution 4.0 International Licence
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CC-BY
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4.0
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© Commonwealth of Australia (Geoscience Australia) 2016
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
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File download
Download the presentation (pdf)
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pdf
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- OnLine resource
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Link to abstract
Link to abstract
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- OnLine resource
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Link to conference
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- Statement
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Abstract for the AAPG/SEG International Conference & Exhibition, 2015
- Hierarchy level
- Non geographic dataset
- Other
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GA Publication
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Source data not available.
Metadata constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/2f26a90b-bef6-fa47-e053-10a3070aa9da
- Title
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GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Edwards, D.
MEG Internal Contact
Type of resource
- Resource scope
- Document
- Name
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Conference Abstract
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/90679
- Date info (Revision)
- 2018-04-22T08:43:20
- Date info (Creation)
- 2016-03-29T00:00:00
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551