SCSIO OpenIR  > 中科院边缘海地质重点实验室
New archive of another significant potential sediment source in the South China Sea
Liu, Jianguo1; Cao, Li2; Yan, Wen2; Shi, Xuefa1,3
2019
Source PublicationMARINE GEOLOGY
ISSN0025-3227
Volume410Pages:16
AbstractSediment provenance is an important part of the sediment source-to-sink transport process from land to sea. However, we sometimes cannot explain some contradictory problems well when assessing sediment sources in certain areas. The northern South China Sea (SCS) is currently considered to be dominantly supplied with sediments from the Pearl River, Taiwan and Luzon. For smectite (one type of clay mineral), Luzon is normally thought to be a significant source when considering only the high smectite percentages in Luzon-derived sediments and neglecting their limited sediment discharge into the sea and longer transport distance of its sediments from this island. Recently, clay mineral compositions of the Pearl River originated sediments were reported to change from rich in smectite from similar to 2500 years ago due to the anthropogonic activities. By contrast, the wide area in the east of the Pearl River (EPR) is similarly characterized by sediments with high smectite percentages and a shorter transport distance than those from Luzon. However, a previous study showed that surface sediment samples with high smectite percentages were occasionally distributed in bays. Here, we present a sediment archive of 16 gravity cores from neighboring bays/harbors along the northern SCS coast. Unlike surface sediments with low smectite percentages, core sediments from the coastal bays/harbors of the EPR show high smectite percentages, indicating that the EPR besides the Pearl River and/or Luzon might be as another potential sediment source for the northern SCS. In South China, widely distributed igneous rocks/volcanic materials are prodigious sources for sediments in the northern SCS slope. In future work, weathering of local materials must be considered when differentiating various sediment sources.
DepartmentOMG
KeywordSediment provenance South China Sea Weathering of local materials East of the Pearl River Sediment transport Smectite
DOI10.1016/j.margeo.2019.01.003
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17971
Collection中科院边缘海地质重点实验室
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.SOA, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China
Recommended Citation
GB/T 7714
Liu, Jianguo,Cao, Li,Yan, Wen,et al. New archive of another significant potential sediment source in the South China Sea[J]. MARINE GEOLOGY,2019,410:16, 21.
APA Liu, Jianguo,Cao, Li,Yan, Wen,&Shi, Xuefa.(2019).New archive of another significant potential sediment source in the South China Sea.MARINE GEOLOGY,410,16.
MLA Liu, Jianguo,et al."New archive of another significant potential sediment source in the South China Sea".MARINE GEOLOGY 410(2019):16.
Files in This Item:
File Name/Size DocType Version Access License
New archive of anoth(2050KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.