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

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...

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Bibliographic Details
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
Description
Summary: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 ...

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