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Late Mesozoic strike-slip faulting in Tasmania
Jurassic dolerite is well exposed in fresh cuttings and quarries throughout Tasmania, and fault striations were found in a high proportion of these exposures in the south and west of the state. These fault striation provide a record of late Mesozoic faulting dominated by dextral west-northwest–east-southeast-striking faults and sinistral north–south-striking faults. This fault association indicates compression from the NNW. Indirect evidence suggests these structures formed during the Cenomanian (ca 95 Ma) inversion in the Otway and Bass basins, and are probably part of the crustal shortening that formed the Transantarctic Mountains.
History
Publication title
Australian Journal of Earth SciencesVolume
62Pagination
331-339ISSN
0812-0099Department/School
School of Natural SciencesPublisher
Blackwell Publishing AsiaPlace of publication
54 University St, P O Box 378, Carlton, Australia, Victoria, 3053Rights statement
Copyright 2015 Geological Society of AustraliaRepository Status
- Restricted