Product catalogue
Environmental conditions and microbial community structure during the Great Ordovician Biodiversification Event; a multi-disciplinary study from the Canning Basin, Western Australia
The Great Ordovician Biodiversification Event (GOBE) is regarded as one of the most significant evolutionary events in the history of Phanerozoic life. The present study integrates palynological, petrographic, molecular and stable isotopic (δ<sup>13</sup>C of biomarkers) analyses of cores from four boreholes that intersected the Goldwyer Formation, Canning Basin, Western Australia, to determine depositional environments and microbial diversity within a Middle Ordovician epicontinental, tropical sea. Data from this study indicate lateral and temporal variations in lipid biomarker assemblages extracted from Goldwyer Formation rock samples. These variations likely reflect changing redox conditions between the upper (Unit 4) and lower (Units 1 + 2) Goldwyer, which is largely consistent with existing depositional models for the Goldwyer Formation. Cryptospores were identified in Unit 4 in the Theia-1 well and are most likely derived from bryophyte-like plants, making this is the oldest record of land plants in Australian Middle Ordovician strata. Biomarkers in several samples from Unit 4 that also support derivation from terrestrial organic matter include benzonaphthofurans and δ<sup>13</sup>C-depleted mid-chain n-alkanes. Typical Ordovician marine organisms including acritarchs, chitinozoans, conodonts and graptolites were present in the lower and upper Goldwyer Formation, whereas the enigmatic organism <i>Gloeocapsomorpha prisca </i>(<i>G. prisca</i>) was only detected in Unit 4. The correlation of a strong <i>G. prisca</i> biosignature with high 3-methylhopane indices and <sup>13</sup>C depleted <i>G. prisca</i>–derived chemical fossils (biomarkers) is interpreted to suggest an ecological relationship between methanotrophs and <i>G. prisca</i>. This research contributes to a greater understanding of Ordovician marine environments from a molecular perspective since few biomarker studies have been undertaken on age-equivalent sections. Furthermore, the identification of the oldest cryptospores in Australia and their corresponding terrestrial biomarkers provides further insight into the geographical distribution and evolution of early land plants.
<b>Citation:</b> Gemma Spaak, Dianne S. Edwards, Clinton B. Foster, Anais Pagès, Roger E. Summons, Neil Sherwood, Kliti Grice, Environmental conditions and microbial community structure during the Great Ordovician Biodiversification Event; a multi-disciplinary study from the Canning Basin, Western Australia, <i>Global and Planetary Change</i>, Volume 159, 2017, Pages 93-112, ISSN 0921-8181
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Identification info
- Date (Creation)
- 2017-05-17T00:00:00
- Date (Publication)
- 2024-09-08T23:42:46
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/110764
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Elsevier B.V.
External Contact Author Spaak, G.
External Contact Author Edwards, D.S.
MEG Internal Contact Author Foster, C.B.
External Contact Author Pages, A.
External Contact Author Summons, R.E.
External Contact Author Sherwood, N.
External Contact Author Grice, K.
External Contact
- Name
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Global and Planetary Change
- Issue identification
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Volume 159, December 2017
- Page
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93-112
- Purpose
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Manuscript for submission to Global and Planetary Change
- Status
- Completed
- Point of contact
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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
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Extent
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- 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
- 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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Darriwilian
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Biomarkers
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Methanotrophs
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Gloeocapsomorpha prisca
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Cryptospores
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Published_External
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Resource constraints
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All rights reserved
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© 2017 Elsevier B.V.
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice facsimile
- OnLine resource
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Link to Journal
Link to Journal
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Manuscript for submission to Global and Planetary Change
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- Document
Metadata constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
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urn:uuid/8aa4ca9b-6ade-409f-b118-4733404c72c0
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GeoNetwork UUID
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- 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/110764
- Date info (Creation)
- 2017-05-16T23:26:11
- Date info (Revision)
- 2017-05-16T23:46:45
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