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Western extension of the Woodroffe Thrust, Musgrave Block, central Australia

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Created 20/01/2025

Updated 20/01/2025

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The Woodroffe Thrust has until now been known in outcrop only in South Australia and the Northern Territory, where it forms part of a system of south-dipping thrust faults that penetrate the continental crust forming the Proterozoic Musgrave Block. Detailed mapping by AGSO in 1991 located new exposures of granite mylonite-previously mapped as sheared porphyry-in Western Australia, at a position predicted from geophysical data some 20 years earlier, and 120 km farther west than the most westerly known previous exposure. The Western Australian exposures of the thrust separate subeclogite facies metamorphic rocks and deformed granite in the south from amphibolite facies deformed granite in the north. The thrust dips gently south, and is marked by isolated exposures of mylonite derived from the granite north of the thrust. Lineations in the mylonite and in the northern and southern terranes are subhorizontal to gently plunging and east-northeast-trending, oblique to the strike of the thrust.

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Title Western extension of the Woodroffe Thrust, Musgrave Block, central Australia
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/aaf7e715-2f8d-4d84-95db-feca3a67b203
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[126.5, -28.0], [134.2, -28.0], [134.2, -24.5], [126.5, -24.5], [126.5, -28.0]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Western extension of the Woodroffe Thrust, Musgrave Block, central Australia". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/western-extension-of-the-woodroffe-thrust-musgrave-block-central-australia

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