Late Mesoproterozoic (ca 1.2 Ga) palaeomagnetism of the Albany-Fraser orogen: no pre-Rodinia Australia-Laurentia connection

S.A. Pisarevsky; Michael Wingate; L.B. Harris

doi:10.1046/j.1365-246X.2003.02074.x

Late Mesoproterozoic (ca 1.2 Ga) palaeomagnetism of the Albany-Fraser orogen: no pre-Rodinia Australia-Laurentia connection

S.A. Pisarevsky, Michael Wingate, L.B. Harris

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

New palaeomagnetic data from metamorphic and mafic intrusive rocks of the Albany-Fraser orogen place Australia at high latitudes at ca 1.2 Ga, whereas existing data show that Laurentia occupied low latitudes at this time. No previous reconstructions linking Australia and Laurentia at ca 1.2 Ga are supported by our new data. The two continents moved independently during the early Grenville orogeny, although it is possible that late Mesoproterozoic convergence resulted in an AUSMEX configuration by 1070 Ma.

Original language	English
Pages (from-to)	F6-F11
Journal	Geophysical Journal International
Volume	155
Issue number	1
DOIs	https://doi.org/10.1046/j.1365-246X.2003.02074.x
Publication status	Published - 2003

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abstract = "New palaeomagnetic data from metamorphic and mafic intrusive rocks of the Albany-Fraser orogen place Australia at high latitudes at ca 1.2 Ga, whereas existing data show that Laurentia occupied low latitudes at this time. No previous reconstructions linking Australia and Laurentia at ca 1.2 Ga are supported by our new data. The two continents moved independently during the early Grenville orogeny, although it is possible that late Mesoproterozoic convergence resulted in an AUSMEX configuration by 1070 Ma.",

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AB - New palaeomagnetic data from metamorphic and mafic intrusive rocks of the Albany-Fraser orogen place Australia at high latitudes at ca 1.2 Ga, whereas existing data show that Laurentia occupied low latitudes at this time. No previous reconstructions linking Australia and Laurentia at ca 1.2 Ga are supported by our new data. The two continents moved independently during the early Grenville orogeny, although it is possible that late Mesoproterozoic convergence resulted in an AUSMEX configuration by 1070 Ma.

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DO - 10.1046/j.1365-246X.2003.02074.x

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Late Mesoproterozoic (ca 1.2 Ga) palaeomagnetism of the Albany-Fraser orogen: no pre-Rodinia Australia-Laurentia connection

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