Unit Affiliation: Geochemistry, Lamont-Doherty Earth Observatory (LDEO)
The project funded detailed B proxy records for a number of locations across the Pacific and Atlantic to establish regional anomalies in surface ocean carbonate chemistry relative to longer-term trends.
OUTCOMES: The boron isotope data from surface dwelling foraminifera from different ocean settings consistently suggest surface ocean acidification of approximately -0.3 pH units. Extension of the Pacific record into the Paleocene and Eocene corroborates a long-term decrease in surface ocean pH consistent with the long-term warming and d13C trends.
Provenance of the Marlboro Clay, a unique formation deposited during the PETM in eastern North America
Reconciling substrate specific difference in the carbon isotope Excursion marking the Paleocene-Eocene transition