Document Type


Publication Date


Digital Object Identifier (DOI)


One of the great stories of geoscience is how Gondwana broke up and the other southern continents drifted northward from Antarctica, which led to major changes in global climate.

The recent drilling of Ocean Drilling Project (ODP) Leg 189 addressed in detail what happened as Australia drifted away from Antarctica and the Tasmanian Gateway opened. The drifting contributed to the change in global climate, from relatively warm early Cenozoic “greenhouse” conditions to late Cenozoic “icehouse” conditions. It isolated Antarctica from warm gyral surface currents from the north and provided the critical deepwater conduits that eventually led to ocean conveyor circulation between the Atlantic and Pacific Oceans.


Complete list of authors: Tom Janeck, Clay Kelly, Jennifer Latimer, Kristeen McGonigal, Stefan Nees, Ulysses Ninnemann, Dirk Nurenberg, Stephen Pekar, Caroline Pellaton, Helen Pfuhl, Christian Robert, Ursula Rohl, Stephen Schellenberg, Catherine Stickley, Noritoshi Suzuki, Yannick Touchard, Wuchang Wei, Tim White

Was this content written or created while at USF?


Citation / Publisher Attribution

Eos, Transactions American Geophysical Union, v. 83, issue 23, p. 253-259

©2002. American Geophysical Union. All Rights Reserved.

Included in

Life Sciences Commons