Fig. 1: Paleogeographic map of the Oligocene locations of study sites and prevailing ocean currents. | Communications Earth & Environment

Fig. 1: Paleogeographic map of the Oligocene locations of study sites and prevailing ocean currents.

From: Strength and variability of the Oligocene Southern Ocean surface temperature gradient

Fig. 1: Paleogeographic map of the Oligocene locations of study sites and prevailing ocean currents.

The approximate paleogeography at 27 Ma is reconstructed through G-plates (http://www.gplates.org), based on the global geodynamic rotation model from Müller, et al.70. Black represents the outline of modern coastlines. The grey outline corresponds to the modern 2000 m water depth contour. PLC Proto-Leeuwin Current, STF Subtropical front, TC Tasman Current, proto-ACC proto-Antarctic Circumpolar Current and ACountC=Antarctic counter current (after Houben, et al.3).

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