NDLI: Clay mineral distribution in surface sediments of the South China Sea and its significance for in sediment sources and transport

Content Provider	Springer Nature Link
Author	Liu, Jianguo Chen, Muhong Chen, Zhong Yan, Wen
Copyright Year	2010
Abstract	Clay minerals of surface sediments in the South China Sea (SCS) are analyzed with X-ray diffraction, and their transport is explored with a grain size trend analysis (GSTA) model. Results show that clay mineral types in various sedimentary environments have different sediment sources and transport routes. Sediments in the northern SCS (north of 20°N) between the southwest of Taiwan Island and the outer mouth of the Pearl River have high contents of illite and chlorite, which are derived mainly from sediments on Taiwan Island and/or the Yangtze River. Sediments from the Pearl River are characterized by high kaolinite and low smectite content, and most are distributed in the area between the mouth of the Pearl River and northeast of Hainan Island and transported vertically from the continental shelf to the slope. Characterized by high illite content, sediments from Kalimantan Island are transported toward the Nansha Trough. Sediments from Luzon Island are related with volcanic materials, and are transported westwards according to smectite distribution. On the Sunda Shelf, sediments from the Mekong River are transported southeast in the north while sediments from the Indonesian islands are transported northward in the south. Ascertaining surface sediment sources and their transport routes will not only improve understanding of modern transportation and depositional processes, but also aid paleoenvironmental and paleoclimatic analysis of the SCS.
Starting Page	407
Ending Page	415
Page Count	9
File Format	PDF
ISSN	02544059
Journal	Chinese Journal of Oceanology and Limnology
Volume Number	28
Issue Number	2
e-ISSN	19935005
Language	English
Publisher	SP Science Press
Publisher Date	2010-03-20
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	clay minerals surface sediments sediment sources South China Sea sediment transport Oceanography
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology Oceanography

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