An exceptional chronologic, isotopic, and clay mineralogic record of the latest Paleocene thermal maximum, Bass River, NJ, ODP 174AX

Author(s): Cramer, Benjamin S.; Aubry, Marie-Pierre; Miller, Kenneth G.; Olsson, Richard K.; Wright, James D.; Kent, Dennis V.
Author Affiliation(s): Primary:
Rutgers University, Department of Geological Sciences, Piscataway, NJ, United States
Université Montpellier II, France
Lamont-Doherty Earth Observatory, United States
University of Maine at Orono, United States
Volume Title: Bulletin de la Société Géologique de France
Source: Bulletin de la Société Géologique de France, 170(6), p.883-897. Publisher: Société Géologique de France, Paris, France. ISSN: 0037-9409
Note: In English with French summary. 66 refs.; illus., incl. 1 table, sketch map
Summary: A thick, apparently continuous section recording events of the latest Paleocene thermal maximum in a neritic setting was drilled at Bass River State Forest, New Jersey as part of ODP Leg 174AX [Miller, Sugarman, Browning et al., 1998]. Integrated nannofossil and magneto-stratigraphy provides a firm chronology supplemented by planktonic foraminiferal biostratigraphy. This chronologic study indicates that this neritic section rivals the best deep-sea sections in providing a complete record of late Paleocene climatic events. Carbon and oxygen isotopes measured on benthic foraminifera show a major (4.0% in carbon, 2.3% in oxygen) negative shift correlative with the global latest Paleocene carbon isotope excursion (CIE). A sharp increase in kaolinite content coincides with the isotope shift in the Bass River section, analogous to increases found in several other records. Carbon and oxygen isotopes remain low and kaolinite content remains high for the remainder of the depositional sequence above the CIE (32.5 ft, 9.9 m), which we estimate to represent 300-500 k.y. We interpret these data as indicative of an abrupt shift to a warmer and wetter climate along the North American mid-Atlantic coast, in concert with global events associated with the CIE.
Year of Publication: 1999
Research Program: ODP Ocean Drilling Program
Key Words: 02 Geochemistry; 12 Stratigraphy, Historical Geology and Paleoecology; Algae; Atlantic Ocean; Bass River; Bass River State Park; Biostratigraphy; Burlington County New Jersey; C-13/C-12; Carbon; Cenozoic; Chronostratigraphy; Clay mineralogy; Clay minerals; Continental margin; Isotope ratios; Isotopes; Leg 150; Leg 174; Lithostratigraphy; Magnetostratigraphy; Microfossils; Nannofossils; New Jersey; North Atlantic; Northwest Atlantic; O-18/O-16; Ocean Drilling Program; Oxygen; Paleocene; Paleogene; Plantae; Sheet silicates; Silicates; Stable isotopes; Tertiary; United States; Upper Paleocene
Coordinates: N383000 N394500 W0720000 W0743000
Record ID: 2000026975
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.