Product catalogue
Geochemical characteristics of early Carboniferous petroleum systems in Western Australia
<p>A geochemical study was conducted to establish oil-oil correlations and evaluate potential source rocks within the latest Devonian–earliest Carboniferous succession of the onshore Canning Basin, Western Australia. Aromatic hydrocarbons, together with the routinely used saturated biomarker ratios and stable carbon isotopes, demonstrate that the recently discovered Ungani oilfield located on the southern margin of the Fitzroy Trough are similar, but not identical, to the early Carboniferous Larapintine 4 (L4) oil family present to the north of the Fitzroy Trough on the Lennard Shelf. The L4 oil family has been correlated to a lower Carboniferous (Tournaisian) source rock core sample from the Laurel Formation at Blackstone-1 although its bulk geochemical properties signify that it could generate substantially more gas than liquid hydrocarbons.
<p>The Ungani oils can be distinguished from the L4 oils by their higher concentrations of paleorenieratane and isorenieratane, coupled with more depleted δ<sup>13</sup>C values for n-alkanes, pristane and phytane compared with other components. Hopane isomerisation ratios show distinct grouping of the two oil families that reflect both source and maturity variations. The oil from Wattle-1 ST1 on the Lennard Shelf also has an unusual composition, exhibiting some molecular and isotopic features similar to both the L4 and Ungani oils. Source rocks for the Ungani and Wattle-1 ST1 oils are unknown since their geochemical signature does not match that of the Tournaisian Laurel Formation or the Middle−Upper (Givetian–Frasnian) Devonian Gogo Formation which sourced the Devonian-reservoired Larapintine 3 oils at Blina and Janpam North-1. It is postulated that such potential oil-prone source rocks could occur within the Famennian–Tournaisian succession.
<b>Citation:</b> Gemma Spaak, Dianne S. Edwards, Clinton B. Foster, Andrew Murray, Neil Sherwood, Kliti Grice, Geochemical characteristics of early Carboniferous petroleum systems in Western Australia,<i> Marine and Petroleum Geology</i>, Volume 113, 2020, 104073, ISSN 0264-8172.
Simple
Identification info
- Date (Creation)
- 2017-05-17T00:00:00
- Date (Publication)
- 2019-10-29T04:38:00
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/110663
- Cited responsible party
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Role Organisation / Individual Name Details Author Spaak, G.
Author Edwards, D.S.
Author Foster, C.B.
Author Murray, A.
Author Sherwood, N.
Author Grice, K.
Publisher Elsevier Ltd
External Contact
- Name
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Marine and Petroleum Geology
- Issue identification
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Volume 113 March 2020
- Page
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104073
- Purpose
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Manuscript for submissions to Marine and Petroleum Geology
- Status
- Completed
- Spatial representation type
- Topic category
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- Geoscientific information
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Extent
))
- Maintenance and update frequency
- As needed
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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
- theme.ANZRC Fields of Research.rdf
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EARTH SCIENCES
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- Keywords
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Canning Basin
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Carboniferous
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Biomarkers
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- theme.ANZRC Fields of Research.rdf
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EARTH SCIENCES
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Published_External
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Devonian
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Ungani oilfield
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oil-sourced correlation
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aromatic carotenoids
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photic zone euxinla
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- Keywords
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alkylbenzenes
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- Keywords
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stable carbon isotopes
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
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CC-BY
- Edition
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4.0
- Access constraints
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© 2019 Published by Elsevier Ltd.
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- Unclassified
- Language
- English
- Character encoding
- UTF8
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
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Link to Journal
Link to Journal
- Distribution format
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- Statement
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Manuscript for submissions to Marine and Petroleum Geology
- Hierarchy level
- Document
Metadata constraints
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- Unclassified
Metadata
- Metadata identifier
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urn:uuid/d3cd782c-a111-4c45-9611-fb968be73e8a
- Title
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GeoNetwork UUID
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Owner Edwards, D.
MEG Internal Contact Point of contact Edwards, D.
MEG Internal Contact
Type of resource
- Resource scope
- Document
- Name
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Journal Article
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/110663
- Metadata linkage
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https://internal.ecat.ga.gov.au/geonetwork/srv/eng/search?uuid=d3cd782c-a111-4c45-9611-fb968be73e8a
Point-of-truth metadata URL
- Date info (Creation)
- 2017-05-16T23:40:57
- Date info (Revision)
- 2017-05-16T23:43:03
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
- Edition date
- 2015-07-01T00:00:00
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, April 2015