Paleogene calcareous nannofossil record of the Tasmanian gateway, supplement to: Wei, Wuchang (2004): Opening of the Australia-Antarctica Gateway as dated by nannofossils. Marine Micropaleontology, 52(1-4), 133-152

Wuchang Wei
The opening of the Tasmanian Gateway between Australia and Antarctica has long been considered a critical element in the initiation of the Antarctic Circumpolar Current, thermal isolation of Antarctica, and Cenozoic global cooling. The timing for the opening of the gateway to shallow-water circulation and subsequently to deep-water circulation was poorly known, however, and the dating of these events was a major objective of ODP Leg 189. Nannofossil data from Leg 189 sites and DSDP...
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