Fluctuations of the calcite compensation depth (CCD) in the East Sea (Sea of Japan) |
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| Authors: | G H Lee S C Park D C Kim |
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| Institution: | (1) Department of Oceanography, Kunsan National University, Kunsan 573-701, Korea e-mail: gwanglee@kunsan.ac.kr, KR;(2) Department of Oceanography, Chungnam National University, Taejon 305-764, Korea, KR;(3) Department of Exploration Engineering, Pukyong National University, Pusan 608-737, Korea, KR |
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| Abstract: | Variations in the calcite compensation depth (CCD) in the East Sea (Sea of Japan) since the early middle Miocene were inferred
from data on age-depth relationships, sediment carbonate, and benthic foraminifers from ODP sites 794, 795, and 797. The CCD
remained relatively shallow during much of the middle Miocene–Pliocene, and deepened sharply at the beginning of the Pleistocene.
Since then it has fluctuated rapidly, possibly in relation to the onset of the northern hemisphere glacial cycles in the late
Pliocene. The average CCD has deepened since at least the early middle Miocene, coinciding with the long-term drop in eustatic
sea level.
Received: 5 November 1998 / Revision accepted: 2 February 2000 |
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