Data report; Isotope compositions of sedimentary organic carbon and total nitrogen from Brazos-Trinity Basin IV (Sites U1319 and U1320) and Ursa Basin (Sites U1322 and U1324), deepwater Gulf of Mexico

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doi: 10.2004/iodp.proc.308.208.2008
Author(s): Gilhooly, William Patrick, III; Macko, Stephen A.; Flemings, Peter B.
Integrated Ocean Drilling Program, Expedition 308 Science Party, College Station, TX
Author Affiliation(s): Primary:
University of Virginia, Department of Environmental Sciences, Charlottesville, VA, United States
Other:
Albert-Ludwig Universität Freiburg, Federal Republic of Germany
University of california-Santa Cruz, United States
Lamont-Doherty Earth Observatory, United States
Kyoto University, Japan
University of Tokyo, Japan
Rice University, United States
Lulea University of Technology, Sweden
Universität Bremen, Federal Republic of Germany
Southampton Oceanography Centre, United Kingdom
University of Virginia, United States
Universidad de Granada, Spain
Nanjing University, China
Tongji University, China
Japan Agency for Marine-Earth Science and Technology, Japan
Shell International Exploration and Production, United States
University of Leicester, United Kingdom
Florida State University, United States
University of Tsukuba, Japan
Hokkaido University, Japan
Universitat de Barcelona, Spain
Shizuoka University, Japan
Vrije Universiteit Amsterdam, Netherlands
University of Texas, United States
Volume Title: Proceedings of the Integrated Ocean Drilling Program; expedition reports; Gulf of Mexico hydrogeology; Expedition 308 of the riserless drilling platform from Mobile Alabama, to Balboa, Panama; Sites U1319-U1324, 30 May-8 July 2005
Volume Author(s): Flemings, Peter B.; Behrmann, Jan H.; John, Cédric M.; Iturrino, Gerardo J.; Aizawa, Yasutaka; Nguyen Thi Thanh Binh; De Silva, Neil; Dugan, Brandon; Edeskär, Tommy M.; Franke, Christine; Gay, Aurélien; Gilhooly, William Patrick, III; Gutierrez-Pastor, Julia; Jiang Shao Yong; Li Qianyu; Long, Hui; Moore, J. Casey; Nunoura, Takuro; Pirmez, Carlos; Reichow, Marc; Sawyer, Derek E.; Schneider, Julia; Shumnyk, Anatoliy V.; Suzuki, Takahiro; Takano, Yoshinori; Urgeles, Roger; Yamamoto, Yuzuru; Zampetti, Valentina
Source: Proceedings of the Integrated Ocean Drilling Program; expedition reports; Gulf of Mexico hydrogeology; Expedition 308 of the riserless drilling platform from Mobile Alabama, to Balboa, Panama; Sites U1319-U1324, 30 May-8 July 2005, Peter B. Flemings, Jan H. Behrmann, Cédric M. John, Gerardo J. Iturrino, Yasutaka Aizawa, Nguyen Thi Thanh Binh, Neil De Silva, Brandon Dugan, Tommy M. Edeskär, Christine Franke, Aurélien Gay, William Patrick Gilhooly, III, Julia Gutierrez-Pastor, Jiang Shao Yong, Li Qianyu, Hui Long, J. Casey Moore, Takuro Nunoura, Carlos Pirmez, Marc Reichow, Derek E. Sawyer, Julia Schneider, Anatoliy V. Shumnyk, Takahiro Suzuki, Yoshinori Takano, Roger Urgeles, Yuzuru Yamamoto and Valentina Zampetti; Integrated Ocean Drilling Program, Expedition 308 Science Party, College Station, TX. Proceedings of the Integrated Ocean Drilling Program, Vol.308, p.1-11. Publisher: IODP Management International, Washington, DC, United States. ISSN: 1930-1014
Note: In English. 10 refs.; illus., incl. 2 tables
Summary: Organic carbon and total nitrogen stable isotopes are reported for sediments drilled during Integrated Ocean Drilling Program Expedition 308. Brazos-Trinity Basin IV sediments exhibited a broad range in organic carbon δ13C ranging between -27 per mil and -20 per mil (δ13C average = -24.1 per mil) compared to Ursa Basin sediments that are generally more depleted in 13C (δ13C average = -25.7 per mil). Bulk δ15N values across all basins ranged from -2.7 per mil to 8.2 per mil (δ15N average = 3.7 per mil) and showed no obvious trend. The relative contribution of marine and terrestrial detrital material deposited within these sediments was inferred by comparing isotopic compositions to C/N values. The significant contribution of inorganic nitrogen (Nbound average≈75%), as estimated from total organic carbon/total nitrogen plots, likely lowered the observed C/N values.
Year of Publication: 2008
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 02 Geochemistry; 12 Stratigraphy, Historical Geology and Paleoecology; Atlantic Ocean; Boreholes; Brazos-Trinity Basin; C-13/C-12; Carbon; Cenozoic; Chemical ratios; Chemostratigraphy; Concentration; Cores; Expedition 308; Geochemistry; Gulf of Mexico; IODP Site U1319; IODP Site U1320; IODP Site U1322; IODP Site U1324; Integrated Ocean Drilling Program; Isotope ratios; Isotopes; Marine sediments; N-15/N-14; Nitrogen; North Atlantic; Northwestern Gulf of Mexico; Organic carbon; Quaternary; Regression analysis; Sediments; Spatial variations; Stable isotopes; Statistical analysis; Ursa Basin
Coordinates: N271600 N271600 W0942400 W0942400
N271800 N271800 W0942300 W0942300
N280600 N280600 W0890100 W0890200
N280500 N280500 W0890800 W0890800
Record ID: 2008116955
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