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オホーツク海の古海洋研究
岡崎, 裕典;関, 宰;高橋, 孝三
Permalink : http://hdl.handle.net/2115/91788
JaLCDOI : 10.14943/lowtemsci.82.119
KEYWORDS : オホーツク海;古海洋学;氷期‒間氷期サイクル;深海掘削;Sea of Okhotsk;Paleoceanography;Glacial–Interglacial Cycles;Deep-Sea Drilling
Abstract
海底堆積物試料を用いたオホーツク海の海洋環境変動の研究史をレビューする．特に水温・海氷・中層水形成・生物生産の4トピックについて，現在とは大きく異なる最終氷期のオホーツク海の復元結果を中心に研究成果を解説する．また，オホーツク海の科学掘削を目指した試みODP/IODP proposal 477を紹介する．
We review the paleoceanographic studies in the Sea of Okhotsk based on sedimentary records, mainly focusing on the following four topics: seawater temperature, sea ice, intermediate water formation, and productivity. The reconstructed environment of the glacial Sea of Okhotsk was significantly different from the modern one. Our attempts for scientific drilling in the Sea of Okhotsk ODP/IODP proposal 477 to obtain long-term sedimentary archives are also presented.
We review the paleoceanographic studies in the Sea of Okhotsk based on sedimentary records, mainly focusing on the following four topics: seawater temperature, sea ice, intermediate water formation, and productivity. The reconstructed environment of the glacial Sea of Okhotsk was significantly different from the modern one. Our attempts for scientific drilling in the Sea of Okhotsk ODP/IODP proposal 477 to obtain long-term sedimentary archives are also presented.
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