Drastic change in the geographical distribution of the cold-water nannofossil Coccolithus pelagicus (Wallich) Schiller at 2.74 Ma in the late Pliocene, with special reference to glaciation in the Arctic Ocean

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doi: 10.1016/j.marmicro.2004.05.003
Author(s): Sato, Tokiyuki; Yuguchi, Shiho; Takayama, Toshiaki; Kameo, Koji
Author Affiliation(s): Primary:
Akita University, Institute of Applied Earth Sciences, Akita, Japan
University College London, United Kingdom
Jumonji University, Japan
Chiba University, Japan
Volume Title: Calcareous nannofossil palaeoecology and palaeoceanographic reconstructions
Volume Author(s): Villa, Giuliana, editor; Lees, Jackie A.; Bown, Paul R.
Source: Marine Micropaleontology, 52(1-4), p.181-193; Ninth international Nannoplankton Association conference, Parma, Italy, Sept. 9-12, 2002, edited by Giuliana Villa, Jackie A. Lees and Paul R. Bown. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0377-8398 CODEN: MAMIDH
Note: In English. 30 refs.; illus., incl. 1 table, sketch map
Summary: We reconstruct the late Pliocene to Quaternary paleoceanography of the Pacific and Atlantic Oceans based on the geographical distribution of Coccolithus pelagicus (Wallich) Schiller, which has been regarded as a typical cold-water species. At 2.74 Ma, the distribution of C. pelagicus defines a biogeographical boundary in the marginal seas of mid- to high-latitude regions of the Pacific, such as near the Japanese Islands, Kuril Islands, Kamchatca Peninsula, Aleutian Islands, Alaska and the northeastern Pacific off Canada. The relative abundance of C. pelagicus is greater than 80% in these marginal sea areas in the North Pacific and Japan Sea. On the basis of characteristics of the nannofossil assemblages and recent nannoplankton biogeography in the Norwegian-Greenland Sea, the change in the relative abundance of C. pelagicus at 2.74 Ma is thought to be the result of the southward migration of most species except C. pelagicus, with the onset of heavy glaciation. The results also indicate that the geographical distribution of C. pelagicus changed in three steps, at 2.75, 1.65 and 1.2 Ma, and it became rare to barren in low-latitude regions. Abstract Copyright (2004) Elsevier, B.V.
Year of Publication: 2004
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Algae; Atlantic Ocean; Biogeography; Caribbean Sea; Cenozoic; Coccolithophoraceae; Coccolithus; Coccolithus pelagicus; DSDP Site 292; DSDP Site 577; DSDP Site 606; DSDP Site 608; DSDP Site 609; DSDP Site 611; Deep Sea Drilling Project; Glaciation; IPOD; Leg 125; Leg 127; Leg 130; Leg 138; Leg 145; Leg 165; Leg 167; Leg 31; Leg 86; Leg 94; Marine environment; Microfossils; Nannofossils; Neogene; North Atlantic; ODP Site 1010; ODP Site 1016; ODP Site 1020; ODP Site 1021; ODP Site 782; ODP Site 796; ODP Site 806; ODP Site 844; ODP Site 846; ODP Site 847; ODP Site 850; ODP Site 881; ODP Site 882; ODP Site 883; ODP Site 887; ODP Site 998; ODP Site 999; Ocean Drilling Program; Pacific Ocean; Paleoclimatology; Paleoenvironment; Plantae; Pliocene; Quaternary; Tertiary; Upper Pliocene
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Record ID: 2005076124
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands