Tropical Atlantic SST during the mid-Pleistocene transition (MPT) of ODP Hole 175-1077B, supplement to: Schefuß, Enno; Sinninghe Damsté, Jaap S; Jansen, J H Fred (2004): Forcing of tropical Atlantic sea surface temperatures during the mid-Pleistocene transition. Paleoceanography, 19, PA4029Enno Schefuß, Jaap S Sinninghe Damsté & J H Fred Jansen
We compare a new mid-Pleistocene sea surface temperature (SST) record from the eastern tropical Atlantic to changes in continental ice volume, orbital insolation, Atlantic deepwater ventilation, and Southern Ocean front positions to resolve forcing mechanisms of tropical Atlantic SST during the mid-Pleistocene transition (MPT). At the onset of the MPT, a strong tropical cooling occurred. The change from a obliquity- to a eccentricity-dominated cyclicity in the tropical SST took place at about 650 kyr BP....
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