Orbital forcing and climate response at the Oligocene-Miocene boundary: stable isotope records from IODP site U1334
Thursday, 18 December 2014
An extreme, transient expansion of the Antarctic ice sheet at the Oligocene-Miocene boundary (the Mi-1 event) marks an important transition in Cenozoic climate. Here, we present new high-resolution benthic and planktic stable isotope records from IODP Site U1334, in the eastern equatorial Pacific Ocean. These newly generated records resolve the role of orbital forcing in late Oligocene – early Miocene climatic changes and reconstruct the evolution of surface to deep water gradients to improve our understanding of this pivotal boundary.