Research Article

Cretaceous Vertical Motion of Australia and the AustralianAntarctic Discordance

+ See all authors and affiliations

Science  06 Mar 1998:
Vol. 279, Issue 5356, pp. 1499-1504
DOI: 10.1126/science.279.5356.1499

You are currently viewing the abstract.

View Full Text


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.

View Full Text

Related Content