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Long term C cycle and climate dynamics in early Cenozoic from planktonic foraminiferal CO2 reconstructions

Long term C cycle and climate dynamics in early Cenozoic from planktonic foraminiferal CO2 reconstructions

Sep 20, 2018, 11:00 Uhr

MARUM Seminar

MARUM I room 2070

(GEOMAR - Helmholtz Center for Ocean Research Kiel)

Eocene atmospheric CO₂reconstructions, using the boron isotope proxy in planktonic foraminifera, have recently reached the understanding to provide confidence for higher resolution reconstructions within the Paleogene. Here, recent multi site CO₂reconstructions will be presented, extending from 55.5 to 34 Ma. These will be compared with sea surface temperature reconstructions, and benthic foraminifera oxygen and carbon isotopes, to identify drivers of cooling and atmospheric CO₂change, and potential feedback mechanisms.