Meyers, Philip A. and Silliman, James E. (1996): Organic matter in Pleistocene to Quaternary turbidites from sites 897, 898, 899, and 900, Iberia abyssal plain
Leg/Site/Hole:
Related Expeditions:
ODP 149
Identifier:
ID:
2007-088096
Type:
georefid
ID:
10.2973/odp.proc.sr.149.239.1996
Type:
doi
Creator:
Name:
Meyers, Philip A.
Affiliation:
University of Michigan, Department of Geological Sciences, Ann Arbor, MI, United States
Role:
author
Name:
Silliman, James E.
Affiliation:
Rice University, United States
Role:
author
Identification:
Title:
Organic matter in Pleistocene to Quaternary turbidites from sites 897, 898, 899, and 900, Iberia abyssal plain
Year:
1996
Source:
In: Whitmarsh, Robert B., Sawyer, Dale S., Klaus, Adam, Beslier, Marie-Odile, Collins, Eric S., Comas, Maria Carmen, Cornen, Guy, de Kaenel, Eric, Pinheiro, Luis de Menezes, Gervais, Elisabeth, Gibson, Ian L., Harry, Dennis L., Hobart, Michael A., Kanamatsu, Toshiya, Krawcyzk, Charlotte M., Liu, Li, Lofts, Jeremy C., Marsaglia, Kathleen M., Meyers, Philip A., Milkert, Doris, Milliken, Kitty L., Morgan, Julia K., Ramirez, Pedro, Seifert, Karl E., Shaw, Timothy J., Wilson, Chris, Yin, Chuan, Zhao, Xixi, Proceedings of the Ocean Drilling Program; scientific results, Iberia abyssal plain; covering Leg 149 of the cruises of the Drilling Vessel JOIDES Resolution; Balboa Harbor, Panama, to Lisbon, Portugal; sites 897-901, 10 March-25 May 1993
Publisher:
Texas A&M University, Ocean Drilling Program, College Station, TX, United States
Volume:
149
Issue:
Pages:
305-313
Abstract:
Shipboard determinations of total organic carbon by difference between total carbon and carbonate carbon contents were compared to direct measurements of organic carbon in Carbonate-free sediments and found to be in generally good agreement. The direct measurement procedure tends to give slightly higher organic carbon concentrations and slightly lower organic C/N ratios. Organic C/N ratios and organic delta (super 13) C values indicate that the organic matter contained in Pleistocene to Pliocene turbidites encountered at Sites 897, 898, 899, and 900 is predominantly marine in origin. Depressed C/N ratios and results of Rock-Eval pyrolysis indicate that the marine organic matter in these sequences has been extensively degraded, presumably by microbial reworking. Organic matter at Site 897 has been less degraded than at the other three sites.
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:40.5019 West:-12.2847 East:
-11.3616 South:40.4059
Keywords: Isotope geochemistry; Atlantic Ocean; biogenic processes; C-13/C-12; carbon; Cenozoic; chemical composition; chemical ratios; concentration; Europe; Iberian abyssal plain; Iberian Peninsula; isotope ratios; isotopes; Leg 149; North Atlantic; Northeast Atlantic; Ocean Drilling Program; ODP Site 897; ODP Site 898; ODP Site 899; ODP Site 900; Pleistocene; Quaternary; Rock-Eval; Southern Europe; stable isotopes; turbidite;
.