Major and trace element compositions of surface sediments from the lower Bengal Fan: Implications for provenance discrimination and sedimentary environment

doi:10.1016/j.jseaes.2019.104000

	Major and trace element compositions of surface sediments from the lower Bengal Fan: Implications for provenance discrimination and sedimentary environment
	Sun, Xingquan 1,2,3; Liu, Shengfa 2,3; Li, Jingrui 2,3; Zhang, Hui 2; Zhu, Aimei 2; Cao, Peng 2; Chen, Min-Te 2,3,4; Zhao, Guangtao 1; Khokiattiwong, Somkiat 5; Kornkanitnan, Narumol 5
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2019-10-15
卷号	184
关键词	Bengal Fan Major and trace elements Provenance Quantification Monsoon flow
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2019.104000
英文摘要	The Bengal Fan, the largest submarine fan in the world, receives a large amount of terrestrial material from the Himalayas and the Indian Peninsula, making it an ideal area for studying land-sea interactions in different time scales. Using the major and trace element compositions of 98 surface sediment samples from the lower Bengal Fan, we identified the provenances of the sediments, calculated the relative contributions of each provenance, and further assessed their controlling factors. The statistic results of the major and trace elements confirm that terrigenous materials comprise the majority on the sediment and that the study area can be divided into three depositional provinces. The main sources of sediments are the Himalayas and Indian river systems, which can be distinguished in the Fe/Al-K/Al scatter diagram. Based on calculation results of a two end-member mixing model, the relative contributions of the Himalayas and the Indian rivers are 55% and 45%, respectively. However, the spatial distributions of sediments from these two sources in the three provinces exhibit a large variation. The Himalayan contributions decrease from 63% in province I (southeast part of the study area) to 53% in province II (central part of the study area) and 45% in province III (northwest part of the study area). Correspondingly, the contributions of Indian rivers increase from province I through province III. During the high sea levels of modern time, seasonal monsoonal currents play a key role in controlling the sediments transport from South Asia continent to the lower fan.
资助项目	National Nature Science Foundation of China[U1606401]
WOS关键词	KRISHNA-GODAVARI ; LATE QUATERNARY ; CLIMATE-CHANGE ; CLAY-MINERALS ; INDIAN-OCEAN ; WESTERN BAY ; RIVER-BASIN ; GEOCHEMISTRY ; SEA ; CIRCULATION
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000489192500009
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/30206]
专题	自然资源部第一海洋研究所
通讯作者	Liu, Shengfa; Shi, Xuefa
作者单位	1.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Shandong, Peoples R China 2.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Shandong, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Shandong, Peoples R China 4.Natl Taiwan Ocean Univ, Inst Earth Sci, Keelung 20224, Taiwan 5.Marine & Coastal Resources Res & Dev Inst, Dept Marine & Coastal Resources, Bangkok 10210, Thailand
推荐引用方式 GB/T 7714	Sun, Xingquan,Liu, Shengfa,Li, Jingrui,et al. Major and trace element compositions of surface sediments from the lower Bengal Fan: Implications for provenance discrimination and sedimentary environment[J]. JOURNAL OF ASIAN EARTH SCIENCES,2019,184.
APA	Sun, Xingquan.,Liu, Shengfa.,Li, Jingrui.,Zhang, Hui.,Zhu, Aimei.,...&Shi, Xuefa.(2019).Major and trace element compositions of surface sediments from the lower Bengal Fan: Implications for provenance discrimination and sedimentary environment.JOURNAL OF ASIAN EARTH SCIENCES,184.
MLA	Sun, Xingquan,et al."Major and trace element compositions of surface sediments from the lower Bengal Fan: Implications for provenance discrimination and sedimentary environment".JOURNAL OF ASIAN EARTH SCIENCES 184(2019).