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dc.contributor.authorLi, Zheng-Xiang
dc.contributor.authorEvans, D.
dc.date.accessioned2017-01-30T11:50:13Z
dc.date.available2017-01-30T11:50:13Z
dc.date.created2011-03-07T20:01:26Z
dc.date.issued2011
dc.identifier.citationLi, Zheng-Xiang and Evans, David. 2011. Late Neoproterozoic 40° intraplate rotation within Australia allows for a tighter-fi tting and longer-lasting Rodinia. Geology. 39 (1): pp. 39-42.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/15519
dc.identifier.doi10.1130/G31461.1
dc.description.abstract

Previous paleomagnetic work has appeared to demand the breakup of southwest United States−East Antarctic (SWEAT) type Rodinia reconstructions before ca. 750 Ma, significantly earlier than the stratigraphic record of rift-drift transition between 715 Ma and 650 Ma. Here we reanalyze Australian paleomagnetic and regional tectonic data to produce a model in which the Precambrian Australian continent had a slightly different configuration before the breakup of Rodinia. A cross-continental megashear zone developed along the Paterson and Petermann orogens at ca. 650–550 Ma, during or after the breakup of Rodinia, manifested as an ∼40° clockwise rotation of the South and West Australian cratons relative to the North Australian craton around a vertical axis in Central Australia. This model reconciles major paleomagnetic discrepancies within Australia, and allows for a longer lifespan of SWEAT-like reconstructions of Rodinia that are consistent with the Neoproterozoic stratigraphic records of Australia and Laurentia.

dc.publisherGeological Society of America Inc
dc.subjectPaterson and Petermann orogens
dc.subjectbreakup of Rodinia
dc.subjectcross-continental megashear zone
dc.titleLate Neoproterozoic 40° intraplate rotation within Australia allows for a tighter-fi tting and longer-lasting Rodinia
dc.typeJournal Article
dcterms.source.volume39
dcterms.source.number1
dcterms.source.startPage39
dcterms.source.endPage42
dcterms.source.issn00917613
dcterms.source.titleGeology
curtin.departmentDepartment of Applied Geology
curtin.accessStatusFulltext not available


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