High-resolution stable isotope records across the Paleocene/Eocene boundary, ODP Sites 1220 and 1221

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doi: 10.2973/odp.proc.sr.199.206.2006
Author(s): Nunes, Flavia; Norris, Richard D.
Ocean Drilling Program, Leg 199, Shipboard Scientific Party, College Station, TX
Author Affiliation(s): Primary:
Woods Hole Oceanographic Institution, Department of Geology and Geophysics, Woods Hole, MA, United States
Other:
Boise State University, United States
Florida State University, United States
Stockholm University, Sweden
University of New Orleans, United States
Stanford University, United States
CNRS-ISTEEM, France
Indiana University of Pennsylvania, United States
University of Michigan, United States
Ruhr Universität Bochum, Federal Republic of Germany
Rutgers-State University of New Jersey, United States
Kyushu University, Japan
Shimane University, Japan
Woods Hole Oceanographic Institution, United States
University of Cambridge, United Kingdom
Boston University, United States
Universita "G. D'Annunzio", Italy
University of Leicester, United Kingdom
Ludwig-Maximilians-Universität München, Federal Republic of Germany
University of California at Santa Cruz, United States
University of Utah, United States
University of Edinburgh, United Kingdom
Volume Title: Proceedings of the Ocean Drilling Program; scientific results; Paleogene equatorial transect; covering Leg 199 of the cruises of the drilling vessel JOIDES Resolution; Honolulu, Hawaii, to Honolulu, Hawaii; Sites 1215-1222; 23 October-16 December 2001
Volume Author(s): Wilson, Paul A.; Lyle, Mitchell W.; Janecek, Thomas R.; Backman, Jan; Busch, William H.; Coxall, Helen K.; Faul, Kristina; Gaillot, Philippe; Hovan, Steven A.; Knoop, Peter; Kruse, Silke; Lanci, Luca; Lear, Caroline; Moore, Theodore C.; Nigrini, Catherine A.; Nishi, Hiroshi; Nomura, Ritsuo; Norris, Richard D.; Palike, Heiko; Parés, Josep M.; Quintin, Lacie; Raffi, Isabella; Rea, Brice R.; Steiger, Torsten H.; Tripati, Aradhna; Vanden Berg, Michael D.; Wade, Bridget
Source: Proceedings of the Ocean Drilling Program; scientific results; Paleogene equatorial transect; covering Leg 199 of the cruises of the drilling vessel JOIDES Resolution; Honolulu, Hawaii, to Honolulu, Hawaii; Sites 1215-1222; 23 October-16 December 2001, Paul A. Wilson, Mitchell W. Lyle, Thomas R. Janecek, Jan Backman, William H. Busch, Helen K. Coxall, Kristina Faul, Philippe Gaillot, Steven A. Hovan, Peter Knoop, Silke Kruse, Luca Lanci, Caroline Lear, Theodore C. Moore, Catherine A. Nigrini, Hiroshi Nishi, Ritsuo Nomura, Richard D. Norris, Heiko Palike, Josep M. Parés, Lacie Quintin, Isabella Raffi, Brice R. Rea, Torsten H. Steiger, Aradhna Tripati, Michael D. Vanden Berg and Bridget Wade; Ocean Drilling Program, Leg 199, Shipboard Scientific Party, College Station, TX. Proceedings of the Ocean Drilling Program, Scientific Results (CD ROM), Vol.199, 12p. Publisher: Texas A&M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 1096-2514
Note: In English. Data report; available only on CD-ROM in PDF format and on the Web in PDF or HTML. 8 refs.CD-ROM format, ISSN 1096-2514; WWW format, ISSN 1096-7451; illus., incl. 1 table
Summary: High-resolution carbon and oxygen isotope records were produced from 240 analyses of two species of benthic foraminifers and bulk carbonate in sediments from across the Paleocene/Eocene (P/E) boundary in Ocean Drilling Program (ODP) Holes 1220B and 1221C. Although part of the carbon isotope excursion is not recorded in either Hole 1220B or Hole 1221C because of carbonate dissolution, both sites do record a significant part of the main geochemical excursion. The benthic foraminifers from Hole 1220B are believed to provide reliable geochemical records of the magnitude of the P/E excursion as judged by the quality of foraminifer preservation and similarity of the carbon isotope record to that seen at other deep-sea sites. However, anomalously positive values in the benthic δ18O record in sediments from Hole 1221C and bulk carbonate in sediments from Hole 1220B indicate that diagenesis masks the primary isotopic signature in this part of the records. The Paleocene-Eocene Thermal Maximum is only observed in the Hole 1220B benthic foraminifer records, with a δ18O excursion of -0.65% to -0.85%. The magnitude of the carbon isotope excursion is as much as 0.96% in Hole 1221C and 2.01% in Hole 1220B. Although smaller than at Southern Ocean Site 690 (2.6%), the carbon isotope excursion in Hole 1220B is of similar magnitude to that observed in Deep Sea Drilling Project and ODP Sites 527, 738, and 1051 and the Alamedilla Section in Spain (-2.1%, -1.6%, -1.9%, and -1.7%, respectively).
Year of Publication: 2006
Research Program: ODP Ocean Drilling Program
Key Words: 02 Geochemistry; 12 Stratigraphy, Historical Geology and Paleoecology; Biostratigraphy; C-13/C-12; Carbon; Carbonates; Cenozoic; Chemostratigraphy; Correlation; Eocene; Foraminifera; Geochemistry; High-resolution methods; Invertebrata; Isotope ratios; Isotopes; Leg 199; Lower Eocene; Microfossils; O-18/O-16; ODP Site 1220; ODP Site 1221; Ocean Drilling Program; Oxygen; Paleo-oceanography; Paleocene; Paleocene-Eocene boundary; Paleoenvironment; Paleogene; Protista; Reconstruction; Stable isotopes; Tertiary; Upper Paleocene
Coordinates: N120200 N120200 W1434200 W1434200
N101100 N101100 W1424500 W1424600
Record ID: 2007028674
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