Data report; Intact membrane lipids as indicators of subsurface life in Cretaceous and Paleogene sediments from sites 1257 and 1258

Online Access: Get full text
doi: 10.2973/odp.proc.sr.207.112.2007
Author(s): Fredricks, Helen F.; Hinrichs, Kai-Uwe
Ocean Drilling Program, Leg 207, Shipboard Scientific Party, College Station, TX
Author Affiliation(s): Primary:
Woods Hole Oceanographic Institution, Department of Marine Chemistry and Geochemistry, Woods Hole, MA, United States
Other:
Bundesanstalt für Geowissenschaften und Rohstoffe, Federal Republic of Germany
Ocean Drilling Program, United States
Woods Hole Oceanographic Institution, United States
Australian National University, Australia
Carl von Ossietzky Universität Oldenburg, Federal Republic of Germany
Université Pierre et Marie Curie, France
Nederlands Instituut voor Onderzoek der Zee, Netherlands
Universität Bremen, Federal Republic of Germany
Stockholm Universitet, Sweden
Florida State University, United States
Pennsylvania State University, United States
University of Missouri, Columbia, United States
University of Michigan, United States
Ruhr Universität Bochum, Federal Republic of Germany
Kyushu University, Japan
Scripps Institution of Oceanography, United States
Purdue University, United States
University of Rhode Island, United States
University of Leicester, United Kingdom
Southampton Oceanography Center, United Kingdom
University of Tokyo, Japan
University College London, United Kingdom
University of Bremen, Federal Republic of Germany
Volume Title: Proceedings of the Ocean Drilling Program; scientific results; Demerara Rise; equatorial Cretaceous and Paleogene paleoceanographic transect, western Atlantic; covering Leg 207 of the cruises of the Drilling Vessel JOIDES Resolution; Bridgetown, Barbados, to Rio de Janeiro, Brazil; sites 1257-1261; 11 January-6 March 2003
Volume Author(s): Mosher, David C.; Erbacher, Jochen; Malone, Mitchell J.; Berti, Debora; Bice, Karen L.; Bostock, Helen; Brumsack, Hans-Jürgen; Danelian, Taniel; Forster, Astrid; Glatz, Christine; Heidersdorf, Felix; Henderiks, Jorijntje; Janecek, Thomas R.; Junium, Christopher; Le Callonnec, Laurence; MacLeod, Kenneth G.; Meyers, Philip A.; Mutterlose, H. Jörg; Nishi, Hiroshi; Norris, Richard D.; Ogg, James G.; O'Regan, A. Matthew; Rea, Brice; Sexton, Philip; Sturt, Helen; Suganuma, Yusuke; Thurow, Jürgen W.; Wilson, Paul A.; Wise, Sherwood W., Jr.
Source: Proceedings of the Ocean Drilling Program; scientific results; Demerara Rise; equatorial Cretaceous and Paleogene paleoceanographic transect, western Atlantic; covering Leg 207 of the cruises of the Drilling Vessel JOIDES Resolution; Bridgetown, Barbados, to Rio de Janeiro, Brazil; sites 1257-1261; 11 January-6 March 2003, David C. Mosher, Jochen Erbacher, Mitchell J. Malone, Debora Berti, Karen L. Bice, Helen Bostock, Hans-Jürgen Brumsack, Taniel Danelian, Astrid Forster, Christine Glatz, Felix Heidersdorf, Jorijntje Henderiks, Thomas R. Janecek, Christopher Junium, Laurence Le Callonnec, Kenneth G. MacLeod, Philip A. Meyers, H. Jörg Mutterlose, Hiroshi Nishi, Richard D. Norris, James G. Ogg, A. Matthew O'Regan, Brice Rea, Philip Sexton, Helen Sturt, Yusuke Suganuma, Jürgen W. Thurow, Paul A. Wilson and Sherwood W. Wise, Jr.; Ocean Drilling Program, Leg 207, Shipboard Scientific Party, College Station, TX. Proceedings of the Ocean Drilling Program, Scientific Results (CD ROM), Vol.207, 11p. Publisher: Texas A&M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 1096-2514
Note: In English. 16 refs.WWW format, ISSN 1096-7451; illus., incl. 2 tables
Summary: We report results from the analysis of intact polar lipids (IPLs) in sediments from Ocean Drilling Program Sites 1257 and 1258. IPLs, constituting the cell membranes of living organisms, were detected in organic-lean sediments but not in underlying organic-rich black shales. Microbial activity in organic-lean sediments is likely due to sulfate-dependent oxidation of methane whereas difficulties detecting IPLs in black shales are interpreted to result from unfavorable signal-to-noise ratios due to low cell concentrations in combination with extremely high analytical noise created by uncharacterized organic matrix. IPLs found are consistent with a low-diversity community of archaea and bacteria. The concentrations of IPLs are more than one order of magnitude lower than those in Neogene deep subsurface sediments at the Peruvian margin, suggestive of significantly lower cell concentrations in Demerara Rise. This finding is consistent with inferred low rates of subsurface microbial activity.
Year of Publication: 2007
Research Program: ODP Ocean Drilling Program
Key Words: 02 Geochemistry; Archaea; Atlantic Ocean; Bacteria; Biogenic processes; Biomarkers; Black shale; Boreholes; Carbonate rocks; Cenozoic; Chalk; Chemical composition; Clastic rocks; Continental margin; Cores; Cretaceous; Demerara Rise; Equatorial Atlantic; Fatty acids; French Guiana; Geochemistry; Geomicrobiology; Leg 207; Lipids; Mesozoic; North Atlantic; Northwest Atlantic; ODP Site 1257; ODP Site 1258; Ocean Drilling Program; Organic acids; Organic compounds; Paleogene; Sedimentary rocks; South America; Surinam; Tertiary; Western Equatorial Atlantic
Coordinates: N092700 N092700 W0542100 W0542100
N092600 N092600 W0544400 W0544400
Record ID: 2007087731
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.