Authors / CoAuthors
Riley, D.A. | Pearce, T.J. | Munday, S. | Edwards, D. | Fuerst, A. | Wang, L.
Abstract
The Neoproterozoic to Middle Ordovician sediments of the Officer Basin, Australia are difficult to correlate, in part because biostratigraphic studies of acritarchs and stromatolites are localised, isotopic studies are rare, and seismic models are technically challenged by the occurrence of basaltic and halite prone-sections. Hence, the chemostratigraphic framework presented here provides an independent stratigraphic model for the Neoproterozoic to Middle Ordovician sediments of the Officer Basin. A total of six chemostratigraphic mega-sequences have been geochemically defined and assigned to the stratigraphy; these have been further subdivided into twenty-eight chemostratigraphic sequences. The chemostratigraphic zonation has been established upon elemental changes attributed to provenance and climatic variation which can be used for correlation as they convey regional, rather than local, changes in sedimentation. The elemental data reveals that there is lateral variation within the established lithostratigraphy (e.g., within the members of the Observatory Hill and Hussar formations), which is suggestive of localised sediment source input to different areas of the basin. Presented to the 2022 Central Australian Basins Symposium IV (CABS) 29-30 August (https://agentur.eventsair.com/cabsiv/)
Product Type
document
eCat Id
146220
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
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- Contact instructions
- MEG
Keywords
- theme.ANZRC Fields of Research.rdf
-
- Exploration GeochemistryEARTH SCIENCESIsotope GeochemistryInorganic Geochemistry
- ( Place )
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- Officer Basin
- ( Temporal )
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- Proterozoic
- ( Temporal )
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- Cambrian
- ( Discipline )
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- Chemostratigraphy
- ( Project )
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- EFTF Energy Officer-Musgrave
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- Published_External
Publication Date
2024-09-19T00:18:53
Creation Date
2022-01-14T13:48:00
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Status
accepted
Purpose
Release of chemostratigraphic (inorganic) data and interpretation for 10 Officer Basin wells. Paper and presentation for CABS 2022 Conference, Alice Springs, NT
Maintenance Information
asNeeded
Topic Category
Series Information
Central Australian Basins Symposium (CABS) IV 29-30 December 2022 Darwin NT
Lineage
Contracted chemostratigraphic sample analysis with Chemostrat Australia Ltd on 10 Officer Basin wells
Parent Information
Extents
[-30.00, -22.00, 120.00, 143.00]
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Spatial Resolution
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