Holocene influx of the Tsushima Current into the Japan Sea signalled by spatial and temporal changes in Neogloboquadrina incompta distribution

Citation Detail

Title:

Holocene influx of the Tsushima Current into the Japan Sea signalled by spatial and temporal changes in Neogloboquadrina incompta distribution.

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Authors:

Domitsu, Hanako¹ hana@mail.tains.tohoku.ac.jp
Oda, Motoyoshi¹

Source:

Holocene; Feb2008, Vol. 18 Issue 2, p345-352, 8p, 1 chart, 1 diagram, 2 graphs, 2 maps

Document Type:

Article

Subject Terms:

*PALEOCLIMATOLOGY -- Holocene
*NEOGLOBOQUADRINA
*WATER masses
*WATER levels
*WATER temperature
*OCEANOGRAPHY
TSUSHIMA Current

Geographic Terms:

JAPAN, Sea of
JAPAN

Author-Supplied Keywords:

Holocene
Japan Sea
Neogloboquadrina incompta
planktic foraminifera
transitional water
Tsushima Current

Abstract:

Neogloboquadrina incompta is an optimal marker of the transitional water formed by mixing of the warm Tsushima Current with cold waters of the Japan Sea. Spatial and temporal changes in N. incompta distribution have been analysed to reconstruct the timing and processes by which modern surface-water conditions were established in the Japan Sea as a function of postglacial influx of the Tsushima Current resulting from rising sea levels. The spatiotemporal distribution of N. incompta suggests that transitional water formed in the eastern to southern marginal regions of the Japan Sea prior to the deposition of the K-Ah tephra (7.3 cal. kyr BP) and then expanded southwestward. A northern cold water mass, together with the cold Liman Current, affected the southwestern part of the Japan Sea until 6.9 cal. kyr BP, which may have been a result of the weaker influence of the Tsushima Current during a time of lower sea level. [ABSTRACT FROM AUTHOR]

 

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Author Affiliations:

¹Institute of Geology and Paleontology, Graduate School of Science, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan

ISSN:

09596836

Accession Number:

31130255

Persistent link to this record (Permalink):

Database:

Academic Search Premier

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