Roles of oceanography and orbital forcing in greenhouse climates

Sietske Batenburg - University of Barcelona

In climates that were warmer than at present, orbital parameters exerted a strong control on environmental conditions, which often resulted in the deposition of rhythmic sedimentary sequences. Especially in the marine realm, such successions reveal the pacing of past climates and can provide detailed time scales for climate perturbations. Ocean circulation played a major role in greenhouse climates by distributing heat and nutrients. I aim to disentangle the role of geography, for example through the opening of gateways, from the role of a warmer climate on the behaviour of ocean currents.