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Kurita, Hiroshi and Obuse, Akiko (2003): Middle Miocene-uppermost lower Pliocene dinoflagellate cyst biostratigraphy, ODP Leg 186 Hole 1151A, off Sanriku coast of northern Japan, northwestern Pacific
Leg/Site/Hole:
Related Expeditions:
ODP 186
ODP 186 1151
Identifier:
ID:
2004-011516
Type:
georefid
ID:
10.2973/odp.proc.sr.186.105.2003
Type:
doi
Creator:
Name:
Kurita, Hiroshi
Affiliation:
Niigata University, Faculty of Science, Niigata, Japan
Role:
author
Name:
Obuse, Akiko
Affiliation:
Carnegie Institution of Washington, United States
Role:
author
Identification:
Title:
Middle Miocene-uppermost lower Pliocene dinoflagellate cyst biostratigraphy, ODP Leg 186 Hole 1151A, off Sanriku coast of northern Japan, northwestern Pacific
Year:
2003
Source:
In: 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, German, Najman, Yanina M. R., Niitsuma, Nobuaki, Pandit, Benoy K., Roller, Sybille, Saito, Saneatsu, Sakamoto, Tatsuhiko, Shinohara, Masanao, Sun, Yue-Feng, 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
Publisher:
Texas A&M University, Ocean Drilling Program, College Station, TX, United States
Volume:
186
Issue:
Pages:
Abstract:
More than 70 dinoflagellate cyst taxa have been encountered in a palynological study of 34 samples from part of the Neogene section of Hole 1151A, Ocean Drilling Program (ODP) Leg 186 off the Sanriku Coast of northern Japan, northwestern Pacific. According to the diatom biostratigraphy, the age of the studied section ranges from the latest early Pliocene down to the earliest middle Miocene. On the basis of the present analysis, 17 biohorizons and possible biohorizons are discriminated as potential biostratigraphic markers. Seven acme events are also listed. The biohorizons show overall consistency with the stratigraphic ranges of species given by earlier studies of onshore sections in northern Japan, which indicates regional implications of those biostratigraphic events. In addition, dominance of protoperidiniacean species in the late late Miocene to early Pliocene assemblages from the present hole compares with a similar dominance of the same age reported previously in the Bering Sea and northern North Pacific. This implies establishment of nutrient-rich surface water in the wide region of the northwestern to north Pacific in the late Miocene.
Language:
English
Genre:
Serial
Rights:
URL:
http://www-odp.tamu.edu/publications/186_SR/VOLUME/CHAPTERS/105.PDF
Coverage:
Geographic coordinates:
North:38.4500
West:143.2000
East: 143.2000
South:38.4500
Keywords:
Stratigraphy; Asia; biostratigraphy; biozones; Cenozoic; chronostratigraphy; cores; Dinoflagellata; Far East; Honshu; Japan; Leg 186; lower Pliocene; marine environment; marine sediments; microfossils; middle Miocene; Miocene; Neogene; North Pacific; Northwest Pacific; Ocean Drilling Program; ODP Site 1151; Pacific Ocean; paleo-oceanography; paleoecology; palynomorphs; Pliocene; Sanriku; sediments; Tertiary; West Pacific;
.
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