Cretaceous Vertical Motion of Australia and the AustralianAntarctic Discordance
- 6 March 1998
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 279 (5356) , 1499-1504
- https://doi.org/10.1126/science.279.5356.1499
Abstract
A three-dimensional model of mantle convection in which the known history of plate tectonics is imposed predicts the anomalous Cretaceous vertical motion of Australia and the present-day distinctive geochemistry and geophysics of the Australian-Antarctic Discordance. The dynamic models infer that a subducted slab associated with the long-lived Gondwanaland-Pacific converging margin passed beneath Australia during the Cretaceous, partially stagnated in the mantle transition zone, and is presently being drawn up by the Southeast Indian Ridge.Keywords
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