Paleomagnetic evidence for the relative positions of Timor and Australia in the Permian |
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| Authors: | FH Chamalaun |
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| Institution: | Australasian Institute for Geodynamics, School of Earth Sciences, The Flinders University of South Australia, Bedford Park, S.A. Australia |
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| Abstract: | An Upper Permian paleomagnetic pole has been determined for the Cribas Formation in eastern Timor. The co-ordinates for the mean pole are 159.8°E and 56.6°S,α95 = 9.0. The reliability of the pole is ascertained through thermal demagnetization, a fold test, comparison between red beds and a lava flow, and the presence of normal and reversed polarities. The Timor pole is in excellent agreement with the Australian Upper Permian and Triassic poles. From this it is inferred that autochthonous Timor formed part of the Australian continental margin at least since the Upper Permian. |
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