Expedition 303/306 synthesis; North Atlantic climate

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doi: 10.2204/iodp.proc.303306.214.2010
Author(s): Channell, James E. T.; Sato, T.; Kanamatsu, T.; Stein, Ruediger; Alvarez Zarikian, Carlos A.
Integrated Ocean Drilling Program, Expedition 303 Scientists, College Station, TX
Author Affiliation(s): Primary:
University of Florida, Department of Geological Sciences, Gainesville, FL, United States
Japan Agency for Marine-Earth Science and Technology, Japan
Akita University, Japan
Alfred-Wegener-Institut für Polar und Meeresforschung, Federal Republic of Germany
Integrated Ocean Drilling Program, United States
Lamont-Doherty Earth Observatory, United States
University of Cambridge, United Kingdom
Christian-Albrechts-Universität zu Kiel, Federal Republic of Germany
Tohoku University, Japan
University of Texas at Arlington, United States
Université du Québec à Montréal, Canada
Hokkaido University, Japan
University of Copenhagen, Denmark
Utsunomiya University, Japan
Rutgers, The State University of New Jersey, United States
Fukada Geological Institute, Japan
Kyoto University, Japan
Ohio State University, United States
St. Andrews University, United Kingdom
Tongji University, China
CNRS/Laboratoire des Sciences du Climat et de l'Environnement, France
Duke University, United States
Universität Bremen, Federal Republic of Germany
Eidgenössische Technische Hochschule Zürich-Zentrum, Switzerland
University of Tsukuba, Japan
University of Colorado at Boulder, United States
University of Hawaii at Manoa, United States
Kyushu University, Japan
University of California at Davis, United States
Kumamoto University, Japan
University College London, United Kingdom
Natural History Museum, Norway
China University of Geosciences, China
University of Utah, United States
Florida State University, United States
AIST/Geological Survey of Japan, Japan
University of South Florida-St. Petersburg, United States
Universidad de Salamanca, Spain
Instituto Nacional de Engenharia, Technologia e Inovacao, Portugal
University of Tokyo, Japan
Volume Title: Proceedings of the Integrated Ocean Drilling Program; North Atlantic climate; Expeditions 303 and 306 of the riserless drilling platform; St. John's, Newfoundland, to Ponta Delgada, Azores; Sites U1302-U1308; 25 September-17 November 2004; and Ponta Delgada, Azores, to Dublin, Ireland; Sites U1312-U1315; 2 March-26 April 2005
Volume Author(s): Channell, James E. T.; Kanamatsu, Toshiya; Sato, Tokiyuki; Stein, Ruediger; Alvarez Zarikian, Carlos A.; Malone, Mitchell J.; Robinson, Stuart; de Abreu, Lucia; Bartoli, Gretta Linda; Chiyonobu, Shun; Damuth, John E.; De Vernal, Anne; Ennyu, Atsuhito; Esmerode, Estela Vazquez; Funakawa, Satoshi; Henderson, Samuel S.; Hodell, David A.; Ito, Masahi; Kawamura, Kiichiro; Kawamura, Noriko; Krissek, Lawrence A.; Leigh, Sasha N. B.; Liu Chuanlian; Mazaud, Alain; Obrochta, Stephen; Romero, Oscar E.; Schiebel, Ralf; Shimada, Chieko; Stoner, Joseph S.; Wilkens, Roy H.; Wright, James D.; Yamasaki, Makoto; Higgins, Sean M.; Aboud, Essam; Acton, Gary D.; Akimoto, Kazumi; Bailey, Ian; Bjorklund, Kjell R.; Evans, Helen; Fang Nianqiao; Ferretti, Patrizia; Gruetzner, Jens; Guyodo, Yohan J. B.; Hatakeda, Kentaro; Harris, Robert; Hagino, Kyoko; Hefter, Jens Norbert; Judge, Shelley A.; Kulhanek, Denise K.; Nanayama, Futoshi; Nielsen, Simon H. H.; Ohno, Masao; Rashid, Harunur; Sanchez, Francisco J. Sierro; Voelker, Antje; Zhai, Qiumin
Source: Proceedings of the Integrated Ocean Drilling Program; North Atlantic climate; Expeditions 303 and 306 of the riserless drilling platform; St. John's, Newfoundland, to Ponta Delgada, Azores; Sites U1302-U1308; 25 September-17 November 2004; and Ponta Delgada, Azores, to Dublin, Ireland; Sites U1312-U1315; 2 March-26 April 2005, James E. T. Channell, Toshiya Kanamatsu, Tokiyuki Sato, Ruediger Stein, Carlos A. Alvarez Zarikian, Mitchell J. Malone, Stuart Robinson, Lucia de Abreu, Gretta Linda Bartoli, Shun Chiyonobu, John E. Damuth, Anne De Vernal, Atsuhito Ennyu, Estela Vazquez Esmerode, Satoshi Funakawa, Samuel S. Henderson, David A. Hodell, Masahi Ito, Kiichiro Kawamura, Noriko Kawamura, Lawrence A. Krissek, Sasha N. B. Leigh, Liu Chuanlian, Alain Mazaud, Stephen Obrochta, Oscar E. Romero, Ralf Schiebel, Chieko Shimada, Joseph S. Stoner, Roy H. Wilkens, James D. Wright, Makoto Yamasaki, Sean M. Higgins, Essam Aboud, Gary D. Acton, Kazumi Akimoto, Ian Bailey, Kjell R. Bjorklund, Helen Evans, Fang Nianqiao, Patrizia Ferretti, Jens Gruetzner, Yohan J. B. Guyodo, Kentaro Hatakeda, Robert Harris, Kyoko Hagino, Jens Norbert Hefter, Shelley A. Judge, Denise K. Kulhanek, Futoshi Nanayama, Simon H. H. Nielsen, Masao Ohno, Harunur Rashid, Francisco J. Sierro Sanchez, Antje Voelker and Qiumin Zhai; Integrated Ocean Drilling Program, Expedition 303 Scientists, College Station, TX; Integrated Ocean Drilling Program, Expedition 306 Scientists, College Station, TX. Proceedings of the Integrated Ocean Drilling Program, Vol.303/306, 25p. Publisher: IODP Management International, Washington, DC, United States. ISSN: 1930-1014
Note: In English. 58 refs.; illus., incl. 1 table, sketch map
Summary: The sites occupied during Integrated Ocean Drilling Program Expedition 303/306 were chosen to recover late Miocene to Quaternary records of North Atlantic environmental variability at elevated mean sedimentation rates from locations appropriate for oxygen isotope (δ18O) and relative paleointensity (RPI) stratigraphies. The overall objective is to correlate these climate/paleoceanographic records to two (ostensibly) independent global stratigraphic signals (δ18O and RPI), thereby enhancing stratigraphic resolution. One site at Orphan Knoll (Site U1302/U1303) provided a proximal record of Laurentide Ice Sheet instability for the Brunhes Chron. Three sites from the Eirik Drift (Sites U1305, U1306, and U1307) provided records of the strength and location of the Western Boundary Undercurrents well as monitors of Greenland Ice Sheet instability back into the Pliocene. Poor weather over the Erik Drift during the second phase of drilling (Expedition 306) precluded the planned return that would have further enhanced knowledge of the history of the drift. Three sites (U1308, U1312, and U1313) constituted reoccupations of classic paleoceanographic sites drilled in 1983 during Deep Sea Drilling Project Leg 94. Although poor weather compromised the record at Site U1312, the new drilling at Sites U1308 and U1313 provided complete sections to the Pliocene and late Miocene, respectively, that were not available from Leg 94. Site U1308 provided evidence for "Hudson Strait" Heinrich Events in the eastern North Atlantic from the end of the middle Pleistocene transition (∼640 ka). One site on the central part of the Gardar Drift (Site U1314) and one site at the southern tip of the Gardar Drift (Site U1304) provided high-resolution deepwater paleoceanographic records that can be linked with shallower water drift sites in the Iceland Basin, drilled during Ocean Drilling Program Leg 162. Site U1315, located on the Voring Plateau, was drilled to 179 meters below seafloor. Instruments to monitor seafloor temperature variations resulting from bottom current changes were installed with a circulation obviation retrofit kit to seal the borehole.
Year of Publication: 2010
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Algae; Arctic Ocean; Atlantic Ocean; Biostratigraphy; Boreholes; Carbonate sediments; Cenozoic; Chemostratigraphy; Cores; Correlation; Diatoms; Event stratigraphy; Expeditions 303/306; Foraminifera; Gamma-ray spectra; Heinrich events; IODP Site U1302; IODP Site U1303; IODP Site U1305; IODP Site U1306; IODP Site U1307; IODP Site U1308; IODP Site U1312; IODP Site U1313; IODP Site U1314; IODP Site U1315; Integrated Ocean Drilling Program; Invertebrata; Isotope ratios; Isotopes; Lithostratigraphy; Magnetic properties; Magnetic susceptibility; Magnetostratigraphy; Marine sediments; Microfossils; Mid-Atlantic Ridge; Nannofossils; Neogene; North Atlantic; Northeast Atlantic; Northwest Atlantic; Norwegian Sea; O-18/O-16; Oxygen; Paleo-oceanography; Paleoclimatology; Paleoenvironment; Paleomagnetism; Plantae; Protista; Quaternary; Reversals; Sediments; Spectra; Stable isotopes; Tertiary; Voring Plateau
Record ID: 2010064263
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.

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