MISC

2005年

Ice-rafted debris (IRD)-based sea-ice expansion events during the past 100 kyrs in the Okhotsk Sea

DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
  • T Sakamoto
  • ,
  • M Ikehara
  • ,
  • K Aoki
  • ,
  • K Iijima
  • ,
  • N Kimura
  • ,
  • T Nakatsuka
  • ,
  • M Wakatsuchi

52
16-18
開始ページ
2275
終了ページ
2301
記述言語
英語
掲載種別
DOI
10.1016/j.dsr2.2005.08.007
出版者・発行元
PERGAMON-ELSEVIER SCIENCE LTD

Ice-rafted debris (IRD) from sediment traps, surficial sediments, and sediment cores were investigated in order to reconstruct the extent history of sea-ice cover during the last 100 kyrs in the Okhotsk Sea. The seasonal IRD buried into the sediments, during and just after sea-ice melting in spring, consists of silt- and sand- size terrigenous particles. The spatial distribution of IRD within surficial sediments clearly corresponds to the extent of sea-ice coverage. Sea-ice expanded to a maximum extent during the glacial periods, although sea-ice cover was not perennial. The Okhotsk Sea Sea-ice Expansion (OSIE) events, which are recognized by millennial-scale-abrupt peaks of IRD content, have occurred 13 times during the past 100 kyrs. These events were amplified during the glacial periods. A significant modification of the polar atmospheric circulation in the northern hemisphere is a key process in explaining these OSIE events. (c) 2005 Elsevier Ltd. All rights reserved.

Web of Science ® 被引用回数 : 71

リンク情報
DOI
https://doi.org/10.1016/j.dsr2.2005.08.007
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000234099800013&DestApp=WOS_CPL