Neogene planktonic foraminiferal biostratigraphy of the Japan Trench, ODP Leg 186

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doi: 10.2973/odp.proc.sr.186.114.2003
Author(s): Hayashi, Hiroki; Morishita, Chikako; Oda, Motoyoshi
Ocean Drilling Program, Leg 186, Shipboard Scientific Party, College Station, TX
Author Affiliation(s): Primary:
Tohoku University, Institute of Geology and Palentology, Sendai, Japan
Other:
Carnegie Institution of Washington, United States
Ocean Drilling Program, United States
University of Tokyo, Japan
Stockholm University, Sweden
Hokkaido University, Japan
Pukyong National University, South Korea
Florida State University, United States
Indiana State University, United States
University of Edinburgh, United Kingdom
Shizuoka University, Japan
Universität Freiburg, Federal Republic of Germany
Lamont-Doherty Earth Observatory, United States
Volume Title: Proceedings of the Ocean Drilling Program, scientific results, Western Pacific geophysical observatories; covering Leg 186 of the cruises of drilling vessel JOIDES Resolution; Yokohama, Japan, to Yokohama, Japan; sites 1150 and 1151, 14 June-14 August 1999
Volume Author(s): Suyehiro, Kiyoshi; Sacks, I. Selwyn; Acton, Gary D.; Acierno, Michael J.; Araki, Eiichiro; Ask, Maria V. S.; Ikeda, Akihiro; Kanamatsu, Toshiya; Kim, Gil Young; Li, Jingfen; Linde, Alan T.; McWhorter, Paul N.; Mora, Germán; Najman, Yanina M. R.; Niitsuma, Nobuaki; Pandit, Benoy K.; Roller, Sybille; Saito, Saneatsu; Sakamoto, Tatsuhiko; Shinohara, Masanao; Sun, Yue-Feng
Source: Proceedings of the Ocean Drilling Program, scientific results, Western Pacific geophysical observatories; covering Leg 186 of the cruises of drilling vessel JOIDES Resolution; Yokohama, Japan, to Yokohama, Japan; sites 1150 and 1151, 14 June-14 August 1999, Kiyoshi Suyehiro, I. Selwyn Sacks, Gary D. Acton, Michael J. Acierno, Eiichiro Araki, Maria V. S. Ask, Akihiro Ikeda, Toshiya Kanamatsu, Gil Young Kim, Jingfen Li, Alan T. Linde, Paul N. McWhorter, Germán Mora, Yanina M. R. Najman, Nobuaki Niitsuma, Benoy K. Pandit, Sybille Roller, Saneatsu Saito, Tatsuhiko Sakamoto, Masanao Shinohara and Yue-Feng Sun; Ocean Drilling Program, Leg 186, Shipboard Scientific Party, College Station, TX. Proceedings of the Ocean Drilling Program, Scientific Results (CD ROM), Vol.186, 23p. Publisher: Texas A&M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 1096-2514
Note: In English. Available only on CD-ROM in PDF format and on the Web in PDF or HTML. 30 refs.CD-ROM format, ISSN 1096-2514; WWW format, ISSN 1096-7451; strat. cols., 2 plates, 3 tables, sketch map
Summary: The planktonic foraminiferal biostratigraphy of Sites 1150 and 1151 drilled in the Japan Trench region during Ocean Drilling Program Leg 186 has been examined. At these drill sites, more than 1100 m of sediment, reaching to the middle Miocene, were obtained with good core recovery. Although planktonic foraminiferal records of the two sites are discontinuous, probably because of carbonate dissolution beneath the carbonate compensation depth, 16 stratigraphically important taxa of planktonic foraminifers were detected. Eight biohorizons were recognized in same stratigraphic order between these two sites. With respect to the diatom data, these eight planktonic foraminiferal biohorizons are possibly synchronous for correlating marine strata from the upper Miocene to Pleistocene in the Japan Trench region. The last occurrence of Neogloboquadrina asanoi falls within Olduvai Subchron. Therefore, the Pliocene/Pleistocene boundary of both sites is situated a little above this biohorizon.
Year of Publication: 2003
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Biostratigraphy; Biozones; Carbonate compensation depth; Cenozoic; Cores; Foraminifera; Invertebrata; Japan Trench; Leg 186; Lower Pleistocene; Marine sediments; Microfossils; Middle Miocene; Miocene; Neogene; North Pacific; Northwest Pacific; ODP Site 1150; ODP Site 1151; Ocean Drilling Program; Olduvai Subchron; Pacific Ocean; Paleomagnetism; Planktonic taxa; Pleistocene; Protista; Quaternary; Sediments; Stratigraphic boundary; Tertiary; West Pacific
Coordinates: N384500 N384500 E1432000 E1432000
N391100 N391100 E1432000 E1432000
Record ID: 2004011517
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