Variation calcium carbonate content in deep-sea pelagic sediments of the Western Pacific Ocean SCOPUS KCI

Title
Variation calcium carbonate content in deep-sea pelagic sediments of the Western Pacific Ocean
Author(s)
Khim, B.-K.; Kim Yeo Hun, Y.H.; Kim Hyung Jeek, H.J.; Hyeong, K.; Yoo, C.M.
KIOST Author(s)
Kim, Hyung Jeek(김형직)Hyeong, Ki Seong(형기성)Yoo, Chan Min(유찬민)
Publication Year
2010
Abstract
Calcium carbonate (CaCO3) content was measured from 3 box core (BC060301, BC060303, BC070301) sediments, in addition to pilot core (PC313) sediments, from deep waters within the Western Pacific Ocean. At the two collection sites (BC060301, PC313) located close to the equator, downcore variation exhibited low CaCO3 content during the interglacial period and high CaCO3 content during the glacial period. Variation of coarse fraction (>63 μm) content also followed changes in CaCO3 content, indicating that dissolution effect of bottom water decreased during the glacial period. Such variation pattern is typical of the Pacific Ocean. However, downcore variation at the two collection sites (BC060303, BC070301) in the Philippine Sea contrasted the trend of the previous two cores (i.e., high CaCO3 content during the interglacial period and low during the glacial period). This pattern is typical of the Atlantic Ocean. Such results may be attributed to the increasing dilution effect, initiated possibly by the increased transportation of terrigenous materials from nearby continent and archipelago during the glacial period when sea level was low. Alternatively, it is possible that the non-carbonate biogenic particles may have been responsible for dilution. Because of these uncertainties, the record of CaCO3 variation in the deep Western Pacific Ocean is not regionally consistent.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4155
DOI
10.4217/OPR.2010.32.1.015
Bibliographic Citation
Ocean and Polar Research, v.32, no.1, pp.15 - 22, 2010
Subject
calcium carbonate; core analysis; deep-sea sediment; dilution; dissolution; sediment chemistry; sediment core; spatial variation; Atlantic Ocean; Pacific Ocean; Pacific Ocean (West); Philippine Sea
Keywords
Atlantic-type; Calcium carbonate; Deep-sea sediments; Pacific-type; Western Pacific Ocean
Type
Article
Language
Korean
Document Type
Article
Related Researcher
Research Interests

Particle flux,Carbon cycle,Climate Change,입자 플럭스,탄소순환,기후변화

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