RB 90/00077 Skeleton 2. Well completion report.
Published: 01 Dec 1990 Created: 07 Nov 2024 Revised: 07 Nov 2024

Skeleton 2 penetrated sediments of the eastern Lake Eyre Basin, the Frome Embayment, and granitic basement of the Mount Painter Ridge. The hole records the southernmost known occurrence of Cadna-owie Formation in the Frome Embayment. Unexpectedly,...

Skeleton 2 penetrated sediments of the eastern Lake Eyre Basin, the Frome Embayment, and granitic basement of the Mount Painter Ridge. The hole records the southernmost known occurrence of Cadna-owie Formation in the Frome Embayment. Unexpectedly, Cambrian and Adelaidean rocks were not intersected. The Cretaceous section begins in Bulldog Shale, which is exceptionally thick, suggesting subsidence in this area during the Aptian and Albian. A regolith on weathered basement was intersected, and the contact was cored. A 3-metre core in fresh granite revealed coarse (pink / green) biotite adamellite, veined and altered in part, and with minor chalcopyrite. The adamellite was dated by U-Pb-Zircon at 1557 /- 6 Ma. A lead loss event at 348 /- 55 Ma was also identified. Drill dates: 17/6/89 to 14/7/89. GL 27.72 metres, line 70CFT, 220 metres north of peg 145. Status: plugged and abandoned. Total depth: TD=591.75 metres, terminating in Precambrian granitic basement.

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About this record

Record No rb9000077
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Departmental Publication - Geological Survey Geoscience Publication
Contributor
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Tenement Holder
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Stratigraphy
Commodity
    Notes
    Geographic Locality: Lake Callabonna
    Doc No: RB 90/00077
    Drillhole: Skeleton 2;Minad LB19;BP SPH1;Minad LC1A;Yalkalpo 1;Union Corporation C15
    Drillhole Unit No: 6938 00006

    Geographic Locality: Lake Callabonna Doc No: RB 90/00077 Drillhole: Skeleton 2;Minad LB19;BP SPH1;Minad LC1A;Yalkalpo 1;Union Corporation C15 Drillhole Unit No: 6938 00006

    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/rb9000077
    Citation Callen, R.A.;Sheard, M.J.;Hough, L.P. 1990. RB 90/00077 Skeleton 2. Well completion report. Departmental Publication - Geological Survey Geoscience Publication. Government of South Australia.
    https://pid.sarig.sa.gov.au/document/rb9000077

    Technical information

    Status
    Maintenance and Update Frequency
    Geographic Reference GDA2020 (EPSG:7844)
    Geo bounding box {"type":"Polygon","coordinates":[[[140,-30],[140.5,-30],[140.5,-29.5],[140,-29.5],[140,-30]]]}
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    Lineage