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SHRIMP zircon age for an Early Cambrian dolerite dyke: an intrusive phase of the Antrim Plateau Volcanics of northern Australia

Hanley, L; Wingate, M


The Antrim Plateau Volcanics. Australia's largest Phanerozoic flood-basalt province, originally covered an area of at least 300 000 km2 across northern Australia. Stratigraphic constraints indicate that the Antrim Plateau Volcanics are of Early Cambrian age (ca 545-509 Ma), although previous attempts to date the Antrim basalts by radiometric methods have been inconclusive. We present an ion microprobe U-Pb zircon age of 513 = 12 Ma for the Ο250 km-long Milliwindi dolerite dyke in the west...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
Source: Australian Journal of Earth Sciences
DOI: 10.1046/j.1440-0952.2000.00829.x


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