Authors / CoAuthors
Stewart, A.J.
Abstract
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.
Product Type
document
eCat Id
81425
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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2601
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Keywords
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- GA PublicationJournal
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- NTSAWA
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_External
Publication Date
1995-01-01T00:00:00
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unknown
Topic Category
geoscientificInformation
Series Information
AGSO Journal of Australian Geology and Geophysics 16:1-2:147-153
Lineage
Unknown
Parent Information
Extents
[-28.0, -24.5, 126.5, 134.2]
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Spatial Resolution
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