An Australian source for Pacific-Gondwana zircon
A study of sediment provenance across Australia using U-Pb-Hf systematics in zircon revealed the Paterson-Petermann Orogen of Central Australia to be the major source for the so-called “characteristic Pacific-Gondwana zircons” found in eastern Australia. These data also re-affirmed links between Western Australia and the Lhasa Terrane in the Ediacaran-Paleozoic time, and led us to re-evaluate the tectonic drivers of the Paterson-Petermann Orogen. We conclude that the Orogen was likely subduction driven, and may represent a Neoproterozoic suture in the middle of Australia.
Martin, E. L., Collins, W. J., and Kirkland, C. L.. An Australian source for Pacific-Gondwanan zircons: Implications for the assembly of northeastern Gondwana: Geology, v. 45, no. 8, p. 699-702 (2017).