Stable isotope composition of Eocene bulk carbonate at Sites U1331, U1332, and U1333

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doi: 10.2204/iodp.proc.320321.208.2013
Author(s): Leon-Rodriguez, Lizette; Dickens, Gerald R.
Integrated Ocean Drilling Program, Expedition 320 Scientists, College Station, TX
Author Affiliation(s): Primary:
Rice University, Department of Earth Sciences, Houston, TX, United States
Hokkaido University, Japan
Texas A&M University, United States
Lamont-Doherty Earth Observatory, United States
University of California at Davis, United States
University College London, United Kingdom
University of California at Santa Cruz, United States
University of Leicester, United Kingdom
Westfälische Wilhelms-Universität Münster, Germany
Goethe University of Frankfurt, Germany
Korea Ocean Research and Development Institute, South Korea
Japan Agency for Marine-Earth Science and Technology, Japan
Rice University, United States
University of Michigan, United States
University of Otago, New Zealand
University of Louisiana, United States
University of Rhode Island, United States
University of South Carolina, United States
Shimane University, Japan
University of Bremen, Germany
Kochi University, Japan
Universita "G. D'Annunzio", Italy
Stockholm University, Sweden
Université Pierre et Marie Curie, France
University of New Orleans, United States
University of Florida, United States
National Institute of Oceanography, India
University of Tokyo, Japan
Christian-Albrechts-Universität zu Kiel, Germany
Indiana University of Pennsylvania, United States
Ibaraki University, Japan
Tohoku University, Japan
Universidad de Granada, Spain
Pennsylvania State University, United States
Utrecht University, Netherlands
Tongji University, China
Osaka City University, Japan
University of Hawaii at Manoa, United States
Geological Survey of Japan, Japan
Volume Title: Proceedings of the Integrated Ocean Drilling Program; Pacific equatorial age transect; Expedition 320 and 321 of the riserless drilling platform from and to Honolulu, Hawaii (USA); Sites U1331-U1336, 5 March-4 May 2009; and Honolulu, Hawaii (USA), to San Diego, California (USA); Sites U1337-U1338, 4 May-22 June 2009
Volume Author(s): Palike, Heiko; Nishi, Hiroshi; Klaus, Adam; Evans, Helen; Williams, Trevor; Acton, Gary D.; Bown, Paul; Delaney, Margaret; Jones, Tom Dunkley; Edgar, Kirsty; Fitch, Peter; Gussone, Nikolaus; Herrle, Jens; Hyeong, Kiseong; Kamikuri, Shin-ichi; Kuroda, Junichiro; Leon-Rodriguez, Lizette; Moore, Theodore, Jr.; Murphy, Brandon; Nakamura, Hideto; Ohneiser, Christian; Richter, Carl; Robinson, Rebecca; Sawada, Ken; Scher, Howie; Takata, Hiroyuki; Westerhold, Thomas; Wilson, Paul A.; Yamamoto, Yuhji; Lyle, Mitchell W.; Raffi, Isabella; Gamage, Kusali; Anderson, Louise; Malinverno, Alberto; Backman, Jan; Beltran, Catherine; Busch, William; Channell, James; Dewangan, Pawan; Hasegawa, Hitoshi; Hathorne, Edmund; Hayashi, Hiroki; Holbourn, Ann; Hovan, Steven; Iijima, Koichi; Ito, Takashi; Kimoto, Katsunori; Murphy, Daniel; Ogane, Kaoru; Romero, Oscar; Schneider, Leah; Sluijs, Appy; Jun Tian; Tsujimoto, Akira; Wade, Bridget; Wilkens, Roy; Yamamoto, Shinya; Yamazaki, Toshitsugu
Source: Proceedings of the Integrated Ocean Drilling Program; Pacific equatorial age transect; Expedition 320 and 321 of the riserless drilling platform from and to Honolulu, Hawaii (USA); Sites U1331-U1336, 5 March-4 May 2009; and Honolulu, Hawaii (USA), to San Diego, California (USA); Sites U1337-U1338, 4 May-22 June 2009, Heiko Palike, Hiroshi Nishi, Adam Klaus, Helen Evans, Trevor Williams, Gary D. Acton, Paul Bown, Margaret Delaney, Tom Dunkley Jones, Kirsty Edgar, Peter Fitch, Nikolaus Gussone, Jens Herrle, Kiseong Hyeong, Shin-ichi Kamikuri, Junichiro Kuroda, Lizette Leon-Rodriguez, Theodore Moore, Jr., Brandon Murphy, Hideto Nakamura, Christian Ohneiser, Carl Richter, Rebecca Robinson, Ken Sawada, Howie Scher, Hiroyuki Takata, Thomas Westerhold, Paul A. Wilson, Yuhji Yamamoto, Mitchell W. Lyle, Isabella Raffi, Kusali Gamage, Louise Anderson, Alberto Malinverno, Jan Backman, Catherine Beltran, William Busch, James Channell, Pawan Dewangan, Hitoshi Hasegawa, Edmund Hathorne, Hiroki Hayashi, Ann Holbourn, Steven Hovan, Koichi Iijima, Takashi Ito, Katsunori Kimoto, Daniel Murphy, Kaoru Ogane, Oscar Romero, Leah Schneider, Appy Sluijs, Jun Tian, Akira Tsujimoto, Bridget Wade, Roy Wilkens, Shinya Yamamoto and Toshitsugu Yamazaki; Integrated Ocean Drilling Program, Expedition 320 Scientists, College Station, TX; Integrated Ocean Drilling Program, Expedition 321 Scientists. Proceedings of the Integrated Ocean Drilling Program (Online), Vol.320/321, 16p. Publisher: IODP Management International, Washington, DC, United States. ISSN: 1930-1014
Note: In English. 25 refs.; illus., incl. 1 table, sketch map
Summary: Coring during Integrated Ocean Drilling Program Expedition 320/321 recovered Eocene sediment sequences at Sites U1331-U1333. These sequences, originally deposited near the Equator of the Pacific Ocean, are characterized by major fluctuations in carbonate content, which may signify past changes in carbonate saturation horizons and perturbations in the global cycling of carbon. Stable carbon and oxygen isotopes were analyzed for 373 samples of bulk sediment across Eocene sequences in Holes U1331C (n = 8), U1332A (n = 100), U1332B (n = 106), and U1333A (n = 159). Bulk carbonate σD13C and δ18O values for lower Eocene sediment at Site U1331 range from 0.9 to 1.6ppm and -0.89ppm to 0.19ppm, respectively. Middle Eocene to lowermost Oligocene sediment at Site U1332 has δ13C and δ18O values between -1.02ppm and 5.06ppm and between -3.63ppm and 0.58ppm, respectively. At Site U1333, values across middle Eocene to lowermost Oligocene sediment fluctuate between 1.41ppm and 3.49ppm for δ13C and between -1.85ppm and 0.28ppm for δ18O. The records are not straightforward enough to interpret with available information. Certain trends in Eocene bulk isotope records observed at other locations appear in the data. However, the absolute magnitudes and variance are significantly different.
Year of Publication: 2013
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 02 Geochemistry; 12 Stratigraphy, Historical Geology and Paleoecology; C-13/C-12; Carbon; Carbonates; Cenozoic; Chemostratigraphy; Cores; East Pacific; Eocene; Expedition 320; Expeditions 320/321; IODP Site U1331; IODP Site U1332; IODP Site U1333; Integrated Ocean Drilling Program; Isotope ratios; Isotopes; Lower Oligocene; Marine sediments; North Pacific; Northeast Pacific; O-18/O-16; Oligocene; Oxygen; Pacific Ocean; Paleogene; Sediments; Stable isotopes; Tertiary
Coordinates: N301100 N301100 W0420400 W0420400
N115443 N115443 W1410244 W1410244
N103100 N103100 W1382510 W1382510
Record ID: 2013059257
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