Holocene changes in detrital sediment supply to the eastern part of the central Yellow Sea and their forcing mechanisms SCIE SCOPUS

Cited 26 time in WEB OF SCIENCE Cited 25 time in Scopus
Title
Holocene changes in detrital sediment supply to the eastern part of the central Yellow Sea and their forcing mechanisms
Author(s)
Lim, Dhongil; Xu, Zhaokai; Choi, Jinyong; Li, Tiegang; Kim, Soyoung
KIOST Author(s)
Lim, Dhongil(임동일)
Publication Year
2015-06-01
Abstract
In this study, Holocene changes in the riverine, eolian, and erosional supplies to the eastern part of the central Yellow Sea (YS) and their forcing mechanisms were determined on the basis of multiple mineralogical and geochemical indices of three age-dated piston cores from the central Yellow Sea mud (CYSM) deposition. The core records of the indices, including clay minerals, rare earth element fractionation parameters, and conservative trace elements, revealed abrupt changes in the sediment sources, especially similar to 9.0 and 4.8 ka. The late last deglaciation and early Holocene sediments (Units 3 and 4, similar to 14.1 to similar to 9.0 ka) most likely originated from the paleo-Huanghe and the sea bed erosion, together with some contribution from the paleo-Changjiang Shoal sediments that extended northeastward into the YS. After that period, the dominant sediment source gradually changed to the Changjiang during the middle Holocene (similar to 9.0-4.8 ka, Unit 2), while the supplies from Huanghe and sea bed erosion to the south YS decreased. In the last 4.8 ka (Unit 1), the CYSM largely received Changjiang-derived sediments. Besides, some clay-sized particulates from the Huanghe, sea bed erosion, and Korea rivers might be transported to the CYSM during Unit 1. Possible mechanisms behind such changes in the riverine and erosional sediment sources and contributions include position shifts of river mouths, tidal stress evolutions, shelf sea-level fluctuations, East Asian monsoon climate changes, and the development of the YSWC and coastal circulation systems. (C) 2015 Elsevier Ltd. All rights reserved.
ISSN
1367-9120
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2464
DOI
10.1016/j.jseaes.2015.03.032
Bibliographic Citation
JOURNAL OF ASIAN EARTH SCIENCES, v.105, pp.18 - 31, 2015
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
RARE-EARTH-ELEMENTS; CHANGJIANG YANGTZE-RIVER; NORTHERN OKINAWA TROUGH; FINE-GRAINED SEDIMENTS; CHINA SEA; PROVENANCE DISCRIMINATION; PALEOENVIRONMENTAL CHANGES; DEPOSITIONAL SYSTEMS; GEOCHEMICAL COMPOSITIONS; SUBAQUEOUS DELTA
Keywords
Sediment provenance; Clay mineralogy; Rare earth elements; Central Yellow Sea mud
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

Marine Geochemistry,Paleoceanography,Marine Pollution,해양지화학,고해양학,해양오염학

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