Geology of the Wiso Basin, Northern Territory

The Wiso Basin, a structural downwarp in the central western part of the Northern Territory, contains a sequence of near-horizontal Middle Cambrian to ?upper Palaeozoic sedimentary rocks. It is continuous with the Daly River Basin to the north, and with the Georgina Basin to the northeast and possibly the southeast. Most of the basin surface is a flat plain which has developed in semi-desert country. Some of the rock sequences of the basin are imprecisely known because of poor outcrop. Cambrian to Ordovician sediments include five mappable rock units; disconformities and unconformities separate some units and may occur within the less well known ones. The basin sequence is thin in the northern and central parts (generally less than 500 m), but thickens southwards into the Lander Trough (up to 1000 m); farther south, the Cambrian to Ordovician sediments are faulted against the Arunta Block on the southern margin of the basin. ?Upper Palaeozoic sandstone overlies these rocks in the Lander Trough and transgresses the faults. Almost flat-lying Mesozoic sediments overlie the northern part of the basin, and these, together with the older rocks of the basin, were extremely weathered during the formation of a laterite soil profile in Late Cretaceous or Early Tertiary time. A thin veneer of Cainozoic sediments, including extensive sand plains and dunefields, has since formed over the basin, and a sparse vegetation of spinifex and light scrub has developed. Few mineral occurrences have been recorded in the basin, but supplies of water are present in the sediments, and the possibility of hydrocarbon accumulations in the Lander Trough cannot be dismissed.

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Date (Publication)
1980-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/55

Cited responsible party
Role Organisation / Individual Name Details
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Bureau of Mineral Resources, Geology and Geophysics

 Canberra
Author

Kennewell, P.J.

 1
Author

Huleatt, M.B.

 2
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Bulletin

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205

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0642056218

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Commonwealth of Australia (Geoscience Australia)
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Commonwealth of Australia (Geoscience Australia)

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250000
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  • Geoscientific information

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E
W


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Product data repository: Various Formats

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Data Store directory containing the digital product files

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  • Bulletin

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  • geology

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  • Earth Sciences

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  • Published_External

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Creative Commons Attribution 4.0 International Licence

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4.0

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http://creativecommons.org/licenses/

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License

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Australian Government Security ClassificationSystem

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2018-11-01T00:00:00
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English
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UTF8

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Commonwealth of Australia (Geoscience Australia)

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OnLine resource

Download the Bulletin (pdf)

Download the Bulletin (pdf)

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Non geographic dataset
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GA Publication

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Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

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English
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UTF8
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Commonwealth of Australia (Geoscience Australia)

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Document
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Legacy AGSO BMR Bulletins

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Geoscience Australia - short identifier for metadata record with

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eCatId/55

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/a05f7892-9d19-7506-e044-00144fdd4fa6

Date info (Revision)
2018-04-22T08:30:45
Date info (Creation)
1996-10-29T00:00:00

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

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W


Keywords

geology

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