Authors / CoAuthors
Hall, L.S. | Buckler, T. | Edwards, D.S. | Boreham, C.J. | Palu, T.J. | Hill, A.J. | Troup, A | Lawson, C.
Abstract
The Cooper Basin is a Pennsylvanian to Middle Triassic intracratonic basin in northeastern South Australia and southwestern Queensland (Gravestock et al., 1998; Draper, 2002; Carr et al., 2016). Exploration activity in the region has recently expanded with explorers pursuing a range of newly-identified unconventional hydrocarbon plays (Goldstein et al., 2012; Menpes et al., 2013; Greenstreet, 2015). In support of this ongoing exploration activity in the region, Hall et al. (2016a) reviewed the Cooper Basin source rock geochemistry and maturity based on a compilation of updated and quality controlled publically available total organic carbon (TOC), Rock-Eval pyrolysis and vitrinite reflectance data. This is the first study of its kind to be undertaken for the Cooper Basin as a whole and builds on the previous work of Boreham & Hill (1998) in South Australia. This data pack contains the supplementary material accompanying this report. The distribution, quantity, quality and thermal maturity of the organic matter were described for all formations within the Pennsylvanian¿Permian Gidgealpa Group and collectively for the formations within the Triassic Nappamerri Group (Hall et al., 2015a, 2016a). Where possible, data were also analysed by lithology. The total organic carbon (TOC) and Rock-Eval pyrolysis data were used to investigate source rock quality, maturity and kerogen type. Original Hydrogen Index (HIo) values for each formation and lithology were determined through the analysis of a subset of low maturity samples and through application of a maturity correction based on Cooper Basin-specific kinetics (Deighton et al., 2003; Mahlstedt et al., 2015). Where data density permits, maps of present day TOC content and both present day HI and original HI were created, showing the spatial variation in the amount and quality of the source rock present now and prior to the onset of hydrocarbon generation. This data pack includes all TOC and Rock Eval data for the Cooper Basin stratigraphic evaluated in Hall et al. (2016a). It also includes the grids of present day TOC for the shale and/or coaly shale intervals, along with the grids of present day and original HI by formation. These datasets quantify the spatial distribution, quantity and quality of the source rocks and provide important insights into the hydrocarbon prospectivity of the Cooper Basin (Hall et al., 2015b; Kuske et al., 2015). This was the first study to be completed as part of the Australian Petroleum Source Rock Mapping project, a new work program being undertaken at Geoscience Australia to improve our understanding of the petroleum resource potential of Australia's sedimentary basins.
Product Type
dataset
eCat Id
90055
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- Data Package
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- QLDSA
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
- ( Place )
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- Cooper Basin
- ( Theme )
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- Petroleum prospectivity
- ( Stratum )
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- Toolachee Formation
- ( Stratum )
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- Patchawarra Formation
- ( Stratum )
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- Epsilon Formation
- ( Stratum )
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- Daralingie Formation
- ( Stratum )
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- Roseneath Shale
- ( Stratum )
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- Murteree Shale
- ( Theme )
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- Organic geochemistry
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- Published_External
Publication Date
2016-05-31T15:00:00
Creation Date
2016-01-01T00:00:00
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
notPlanned
Topic Category
geoscientificInformation
Series Information
Lineage
The input datasets and technical work flow used to generate these produces are described in Hall, L.S., Boreham, C.J., Edwards, D.S., Palu, T.J., Buckler, T., Hill, A.J. & Troup, A. 2016. Cooper Basin Source Rock Geochemistry: Regional Hydrocarbon Prospectivity of the Cooper Basin, Part 2. Record 2016/06. Geoscience Australia, Canberra. http://dx.doi.org/10.11636/Record.2016.006
Parent Information
Extents
[-29.5, -24.5, 139, 144.5]
Reference System
GDA94 / MGA zone 54 (EPSG:28354)
Spatial Resolution
Service Information
Associations
Source Information
Source data not available.