Journal article

Cenozoic affinity of the Gondwanan rocks of eastern Timor: evidence from geo-thermochronometry

Brendan Duffy, Brian Lew, Kevin Boland, Barry Kohn, Erin Matchan, Roland Maas, David Dixon, Lourenço Pedro, Paulo de Carvalho, Mike Sandiford

Copernicus GmbH

Abstract

<p>Timor occupies a critical position within Wallacea and within the Indonesian throughflow, but its tectonic history remains poorly constrained compared to other parts of the region. Tectonic models typically divide the island into 1) Australian affinity rocks, including a thick sequence of Paleozoic and Mesozoic rocks and metamorphosed equivalents, and 2) Asian affinity rocks, made up of predominantly Cretaceous and Paleogene rocks and their metamorphosed equivalents, known as the Lolotoi Metamorphic Complex (LMC). New field mapping shows that the type-area of the LMC is pre-Permian basement exposed in an erosional window. Much of the previously mapped LMC is actually overlying alkal..

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University of Melbourne Researchers