IOCAS-IR  > 海洋地质与环境重点实验室
Sediment provenance and paleoenvironmental changes in the northwestern shelf mud area of the South China Sea since the mid-Holocene
Xu, Fangjian1,3,4; Hu, Bangqi2,3; Dou, Yanguang2; Liu, Xiting4; Wan, Shiming4; Xu, Zhaokai4; Tian, Xu5; Liu, Zhaoqing1; Yin, Xuebo4; Li, Anchun4
2017-07-05
Source PublicationCONTINENTAL SHELF RESEARCH
Volume144Pages:21-30
SubtypeArticle
AbstractThe late Quaternary paleoceanography and paleoenvironment of the South China Sea (SCS) have been well reconstructed over the last decade. In contrast, the provenance of the terrigenous sediments that have accumulated in the northwestern continental shelf mud area remains enigmatic. This study investigated the provenance of these sediments and the paleoenvironmental changes archived in Core X2 via the analysis of geochemical elements, grain size, and accelerator mass spectrometry (AMS) C-14 ages. Based on the upper continental crust (UCC)-normalized REE patterns and REE fractionation parameters, southwestern and western Taiwanese rivers and the Pearl River were identified as the main sources of the fine-grained sediment deposited in the northwestern shelf mud area off Hainan Island. This finding further confirms the long-distance transport (> 1000 km) of fine-grained sediment from Taiwanese rivers to the northern SCS shelf and slope. Obvious changes in the grain size and Chemical Index of Alteration (CIA) record occurred at approximately 4.0 cal kyr BP and were likely caused by increased Hainan Island inputs due to sea level changes.
KeywordSediment Provenance Paleoenvironment Rare Earth Elements Grain Size South China Sea Holocene
DOI10.1016/j.csr.2017.06.013
Indexed BySCI
Language英语
WOS IDWOS:000407660600003
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/143081
Collection海洋地质与环境重点实验室
Affiliation1.China Univ Petr, Sch Geosci, Changjiang West Rd 66, Qingdao 266580, Peoples R China
2.Minist Land & Resources, Qingdao Inst Marine Geol, Key Lab Marine Hydrocarbon Resources & Environm G, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
5.Natl Deep Sea Ctr, Qingdao 266237, Peoples R China
First Author Affilication中国科学院海洋研究所
Recommended Citation
GB/T 7714
Xu, Fangjian,Hu, Bangqi,Dou, Yanguang,et al. Sediment provenance and paleoenvironmental changes in the northwestern shelf mud area of the South China Sea since the mid-Holocene[J]. CONTINENTAL SHELF RESEARCH,2017,144:21-30.
APA Xu, Fangjian.,Hu, Bangqi.,Dou, Yanguang.,Liu, Xiting.,Wan, Shiming.,...&Li, Anchun.(2017).Sediment provenance and paleoenvironmental changes in the northwestern shelf mud area of the South China Sea since the mid-Holocene.CONTINENTAL SHELF RESEARCH,144,21-30.
MLA Xu, Fangjian,et al."Sediment provenance and paleoenvironmental changes in the northwestern shelf mud area of the South China Sea since the mid-Holocene".CONTINENTAL SHELF RESEARCH 144(2017):21-30.
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