Flow reorganizations in the Panama Seaway: A cause for the demise of Miocene corals?

Details Flow reorganizations in the Panama Seaway: A cause for the demise of Miocene corals? Flow reorganizations in the Panama Seaway: A cause for the demise of Miocene corals?

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3202609v&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 2, CiteID L02609

Physics

Geophysics

3

Global Change: Oceans (1616, 3305, 4215, 4513), Oceanography: Physical: Currents, Nonlinear Geophysics: Chaos (7805)

Scientific paper

A large number of coral species in the Caribbean Sea disappeared in the early Miocene. Based on climate model simulations, we propose that this regional extinction is related to a flow reorganization in the Panama Seaway. It is shown that large-scale tectonic events, such as the opening of Drake Passage and the closing of the Tethys Seaway, reorganized the global ocean currents to induce a reversal of the volume transport between Atlantic and Pacific. This flow reversal, which is timed near the Oligocene-Miocene boundary, allowed cool Pacific waters to enter the Caribbean Sea possibly affecting the habitat of warm water tolerant coral species.

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