The Paleocene-Eocene thermal maximum (PETM) stable isotopic values of planktonic and benthic foraminifera at Millville, NJ ...

• Main Authors: Makarova, Maria, Wright, James D, Miller, Kenneth G, Babila, Tali L, Rosenthal, Yair, Park, Jill I
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: Depth, bottom/max; Depth, top/min; DEPTH, sediment/rock; Depth, adjusted/modified; Species; Size fraction; Number of tests; δ13C; δ13C, adjusted/corrected; δ18O; Core drilling; Mass spectrometer Optima Micromass; Corrected; Leg174AX; Ocean Drilling Program ODP; Ocean acidification; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.1594/pangaea.879192; https://doi.pangaea.de/10.1594/PANGAEA.879192

We present new d13C and d18O records of surface (Morozovella and Acarinina) and thermocline dwelling (Subbotina) planktonic foraminifera and benthic foraminifera (Gavelinella, Cibicidoides, and Anomalinoides) during the Paleocene-Eocene Thermal Maximum (PETM) from Millville, New Jersey, and compare them with three other sites located along a paleoshelf transect from the U.S. mid-Atlantic coastal plain. Our analyses show different isotopic responses during the PETM in surface versus thermocline and benthic species. Whereas all taxa record a 3.6-4.0 per mil d13C decrease associated with the carbon isotope excursion, thermocline dwellers and benthic foraminifera show larger d18O decreases compared to surface dwellers. We consider two scenarios that can explain the observed isotopic records: (1) a change in the water column structure and (2) a change in habitat or calcification season of the surface dwellers due to environmental stress (e.g., warming, ocean acidification, surface freshening, and/or ... : Supplement to: Makarova, Maria; Wright, James D; Miller, Kenneth G; Babila, Tali L; Rosenthal, Yair; Park, Jill I (2017): Hydrographic and ecologic implications of foraminiferal stable isotopic response across the U.S. mid-Atlantic continental shelf during the Paleocene-Eocene Thermal Maximum. Paleoceanography, 32(1), 56-73 ...