Provenance connections between late Neoproterozoic and early Palaeozoic sedimentary basins of the Ross Sea region, Antarctica, south-east Australia and southern Zealandia
Thick successions of turbidites are widespread in the Ross-Delamerian and Lachlan orogens and are now dispersed through Australia, Antarctica and New Zealand. U-Pb detrital zircon age patterns for latest Precambrian, Cambrian and Ordovician metagreywackes show a closely related provenance. The latest Neoproterozoic-early Palaeozoic sedimentary rocks have major components, at c. 525, 550, and 595 Ma, i.e. about 40-80 million years older than deposition. Zircons in these components increase from...[Show more]
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