Geochemistry of surface sediments in the southwestern East/Japan Sea SCIE SCOPUS

Cited 34 time in WEB OF SCIENCE Cited 38 time in Scopus
Title
Geochemistry of surface sediments in the southwestern East/Japan Sea
Author(s)
Cha, Hyun-Ju; Choi, Man Sik; Lee, Chang-Bok; Shin, Dong-Hyeok
KIOST Author(s)
Shin, Dong Hyeok(신동혁)
Publication Year
2007-03-01
Abstract
We analyzed 77 surface sediment samples collected in the southwestern East/Japan Sea from the Korea Strait through the Ulleung Basin and the Korea Plateau for grain size, calcium carbonate, organic carbon, and major (Na, Mg, Al, Fe, K, Ca, and Ti) and trace elements (P, Mn, Sr, Li, Sc, V, Cr, Co, Ni, Zn, Cu, and Pb). The chemical composition of the surface sediments was found to be highly variable spatially. Cluster analysis of surface sediment chemical compositions indicated five major geochemical sedimentary environments: basin, lower slope, coast and upper slope, inner shelf, and outer shelf. Continental-shelf sediments were rich in shell fragments and had relict and coarse-grained characteristics. Recent fine-grained sediments were only distributed in coastal, slope, and basin areas. Concentrations of Al, K, Ca, Ti, Cr, and Sc were highest in the coastal and upper slope areas and decreased with water depth. Elemental ratios using major and trace elements indicated that coastal and upper slope detrital sediments were mixtures of sediments derived from the Changjiang (Yangtze) and Nakdong Rivers. Although the concentrations of organic carbon, P, Mn, V, Co, Ni, Cu, and Pb increased with water depth, their distribution patterns indicated authigenic (V, Cu, and Pb) and diagenetic (Fe, P, Mn, Co, and Ni) origins. The distribution pattern with water depth suggested that the chemical composition of surface sediment was determined by sedimentologic and geochemical processes, such as the supply of detrital and biogenic materials, and authigenic and post-depositional diagenetic processes in sediments. (c) 2006 Elsevier Ltd. All rights reserved.
ISSN
1367-9120
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4719
DOI
10.1016/j.jseaes.2006.04.009
Bibliographic Citation
JOURNAL OF ASIAN EARTH SCIENCES, v.29, no.5-6, pp.685 - 697, 2007
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
JAPAN SEA; EAST SEA; BOTTOM-WATER; ACCUMULATION RATES; PELAGIC SEDIMENTS; ATLANTIC; METALS; BASIN; RIVER; FLOW
Keywords
East/Japan sea; sediment; elements; chemical composition
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

marine geology,sedimentology,marine security,해양지질,퇴적학,해양방위

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