Sources and burial of organic carbon in the middle Okinawa Trough during late Quaternary paleoenvironmental change SCIE SCOPUS

Cited 9 time in WEB OF SCIENCE Cited 10 time in Scopus
Title
Sources and burial of organic carbon in the middle Okinawa Trough during late Quaternary paleoenvironmental change
Author(s)
Shao, Hebin; Yang, Shouye; Cai, Feng; Li, Chao; Liang, Jie; Li, Qing; Hyun, Sangmin; Kao, Shuh-Ji; Dou, Yanguang; Hu, Bangqi; Dong, Gang; Wang, Feng
KIOST Author(s)
Hyun, Sangmin(현상민)
Publication Year
2016-12
Abstract
The sediments from a piston core ECS12A recovered from the middle Okinawa Trough in the East China Sea were measured for total organic carbon (TOC), total nitrogen (TN), and other biogenic elements to provide constraints on the sources and burial rates of depositional organic matter (OM) and on the changes in primary productivity since 19 ka. The last glacial sediments (ca. 17-19 ka) are characterized by low contents of biogenic elements and well-developed turbidite layers, suggesting low primary productivity but a high component of terrigenous sediment. With rising sea level and enhanced monsoons during the deglacial period, the proportion of marine OM gradually increased. The least negative delta C-13(org) values and the smallest grain size of sediments deposited ca. 10-14.5 ka indicate high primary productivity and a sedimentary environment dominated by the marine component. The source and burial rates of OM in the Holocene sediments (ca. 5.4-10 ka) were largely controlled by the intensification of the Kuroshio Current, which caused a slight decrease in primary productivity, but strengthened the oceanic circulation in the East China Sea. Overall, the source-to-sink process of OM in the Okinawa Trough is governed by complex interactions between sea level, climate and ocean circulation.
ISSN
0967-0637
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1398
DOI
10.1016/j.dsr.2016.10.005
Bibliographic Citation
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, v.118, pp.46 - 56, 2016
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
EAST CHINA SEA; NORTHWESTERN PACIFIC-OCEAN; HIGHSTAND SYSTEMS TRACTS; LAST GLACIAL MAXIMUM; GULF-OF-MEXICO; ASIAN MONSOON; SURFACE SEDIMENTS; BIOGENIC SILICA; YANGTZE-RIVER; CHANGJIANG YANGTZE
Keywords
Organic carbon; Okinawa Trough; Sediment; Late Quaternary; Paleoenvironment
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

Marine environmentology,Marine environmentology,Organic chemistry,해양환경학,화학해양학,유기화학

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse