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RB 2018/00026 Sedimentology of the late Palaeozoic Cape Jervis Formation, Troubridge Basin, South Australia.
Published: 01 Nov 2018 Created: 15 Nov 2024 Revised: 15 Nov 2024
Author: Normington, V.J.;Hill, S.M.;Tiddy, C.J.;Giles, D.

The late Palaeozoic Cape Jervis Formation of the Troubridge Basin in southern South Australia provides a sedimentological record of the glacial environment during the Permo-Carboniferous glaciation. The sedimentary sequence is divided into five...

The late Palaeozoic Cape Jervis Formation of the Troubridge Basin in southern South Australia provides a sedimentological record of the glacial environment during the Permo-Carboniferous glaciation. The sedimentary sequence is divided into five informal units that comprise the Cape Jervis Formation, and which preserve sedimentological features that have been used to constrain models for the glacial setting and associated depositional mechanisms prevailing during this time. Landscape features such as glaciated pavements and the presence of lodgement till diamictite suggest that the glacial setting was a wet-based, continental icesheet with ice tongue glaciers at the front margin of the icesheet. The icesheet is believed to have advanced in a northwards to north-westwards direction, forming glaciated bedrock surfaces and depositing lodgement till. The presence of fluviolacustrine beds suggests that the icesheet's movement later ceased and its growth stagnated, which facilitated the formation of glacial lakes and meltwater streams. The icesheet then began to melt significantly and its leading edges retreated southward. Ablation of the ice resulted in deposition of a flow till complex and caused a eustatic rise in mean sea level that resulted in a marine transgression and subsequent deposition of glaciomarine sedimentary rocks.

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About this record

Record No 2018d051417
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Departmental Publication - Geological Survey Geoscience Publication
Contributor Deep Exploration Technologies Cooperative Research Centre (DET CRC);The University of Adelaide. Department of Earth Sciences;Department for Energy and Mining. Geological Survey of South Australia;Future Industries Institute, University of South Australia
Sponsor
Tenement
Tenement Holder
Operator
Geological Province Troubridge Basin
Mine Name
Stratigraphy Cape Jervis Formation
Commodity
    Notes 
    Notes: This report presents the results of the sedimentology of the sedimentary rocks carried out on five measured sections of the Cape Jervis Formation in the Troubridge Basin. Measured sections were systematically logged and sampled by the lead...
    Notes: This report presents the results of the sedimentology of the sedimentary rocks carried out on five measured sections of the Cape Jervis Formation in the Troubridge Basin. Measured sections were systematically logged and sampled by the lead author and Dr Steve Hill during field trips made between July 2010 and February 2012. Analytical methods used included close observations of the physical characteristics of the sedimentary rocks, in part involving detailed petrology and mineralogy. Petrological analysis was conducted by the lead author at Adelaide Microscopy at the University of Adelaide, using thin sections prepared by Pontifex and Associated Pty Ltd in Adelaide. Sediment mineralogical (spectroscopic) analysis and data processing was conducted by Georgina Gordon of the GSSA using the HyloggerTM 3-3 at the Glenside Drill Core Storage Facility in Adelaide.  This report builds on research initially conducted by Ludbrook (1967) and expanded upon by Alley and Bourman (1984) and Bourman and Alley (1990, 1995, 1999) which focused on the millimetre to centimetre - scale sedimentology as well as the depositional setting of the sedimentary rocks of the Cape Jervis Formation. These previously researched aspects are duly referenced throughout this report. The inferred depositional settings of the glacigene sedimentary rocks of the Troubridge Basin, based on the sedimentology, are presented herein.
Geographic Locality: South Australia;Western Fleurieu Peninsula;Southern Yorke Peninsula;North-eastern Kangaroo Island;Hallett Cove;Black Cliff;Sugarloaf Creek;Cape Jervis;Kings Point;Waterloo Bay;Kingscote;Town foreshore beach;Bluff Quarry
Doc No: RB 2018/00026

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    Language English
    Metadata Standard ISO 19115-3

    Citations

    Use constraints License
    License Creative Commons Attribution 4.0
    Persistent identifier https://pid.sarig.sa.gov.au/document/2018d051417
    Citation Normington, V.J.;Hill, S.M.;Tiddy, C.J.;Giles, D. 2018. RB 2018/00026 Sedimentology of the late Palaeozoic Cape Jervis Formation, Troubridge Basin, South Australia. Departmental Publication - Geological Survey Geoscience Publication. Government of South Australia.
    https://pid.sarig.sa.gov.au/document/2018d051417

    Technical information

    Status
    Maintenance and Update Frequency
    Geographic Reference GDA2020 (EPSG:7844)
    Geo bounding box {"type":"Polygon","coordinates":[[[137.5,-36],[139,-36],[139,-34.5],[137.5,-34.5],[137.5,-36]]]}
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