Holocene Fluctuation of the Warm Tsushima Current and Warm Molluscan Assemblages from Hokkaido, Japan.

• Kito Norio

  Hokkaido University of Education, Hakodate Campus

• Noda Takashi

  Faculty of Fisheries, Hokkaido University

• Minami Toshitaka

  Kubonai Junior High School

Bibliographic Information

Other Title

• 対馬海流の脈動と北海道における完新世の温暖貝化石群集の変遷
• ツシマ カイリュウ ノ ミャクドウ ト ホッカイドウ ニ オケル カンシンセイ

Abstract

A molluscan assemblage including warm water species such as Meretrix lusoria, Mactra veneriformis, Umbonium moniliferum, etc., found in the Hakodate Plain was dated 2, 400-2, 300yrs BP by the ¹⁴C method. This age is younger than the known warm Jomon transgression (Flandrian transgression) period. Based on the newly dated assemblage, three stages of Holocene warm assemblages are recognized from southern Hokkaido: 7, 500yrs BP, 4, 000yrs BP, and 2, 400-2, 300yrs BP. These stages are concordant with three periods of strong northward inflow of the warm Tsushima Current. Warm molluscan assemblages probably extended their geographical range to Hokkaido three times synchronously with strong inflow of the current.

Journal

• The Quaternary Research (Daiyonki-Kenkyu)

  The Quaternary Research (Daiyonki-Kenkyu) 37 (1), 25-32, 1998

  Japan Association for Quaternary Research

Keywords

• 縄文海進
• 完新世
• 暖流系貝化石群集
• 対馬海流
• 北海道

Details

• CRID: 1390001206497417216
• NII Article ID: 10002509787
• NII Book ID: AN0034136X
• DOI: 10.4116/jaqua.37.25
• ISSN: 18818129
• ISSN: 04182642
• ISSN: http://id.crossref.org/issn/00335894
• NDL BIB ID: 4411879
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4411879
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed