干旱区生态环境知识资源中心(Arid): Holocene monsoon and sea level-related changes of sedimentation in the northeastern Arabian Sea

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DOI	10.1016/j.dsr2.2019.03.003
	Holocene monsoon and sea level-related changes of sedimentation in the northeastern Arabian Sea
	Burdanowitz, Nicole 1; Gaye, Birgit 1; Hilbig, Lea 1; Lahajnar, Niko 1; Lueckge, Andreas 2; Rixen, Tim 1,3; Emeis, Kay-Christian 1,4
通讯作者	Burdanowitz, Nicole
来源期刊	DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
ISSN	0967-0645
EISSN	1879-0100
出版年	2019
卷号	166 页码:6-18
英文摘要	The Indian Monsoon and the westerlies strongly influence the sedimentation in the northeastern Arabian Sea by impacting rainfall and erosion on land and on biogeochemical processes in the ocean. To disentangle the terrestrial and oceanic processes, we analysed mineralogical and bulk geochemical components of a Holocene sediment core offshore Pakistan. Endmember modelling of grain sizes and principal component analyses (PCA) of major and trace elements identify the origin of sediments and their dominant mode of transport. Sedimentation processes during the early Holocene (10.8-8.2 ka BP) were influenced by the post-glacial sea level rise and orbitally forced strengthening of the Indian summer monsoon (ISM) and westerlies. This led to a shift from rather terrestrial-dominated towards a marine-dominated sedimentation, whereas the fluvial source shifted from the Makran rivers to the Hab River near Karachi. During the mid-Holocene (8.2-4.2 ka BP) a combination of weakening ISM and southward displacement of the ITCZ enhanced the influence of the westerlies, together decreasing river discharges and enhancing aeolian input (probably from the Sistan Basin region). This trend continued during the last ca. 4 ka when the increasing aridification of the Hab River catchment further increased the aeolian inputs. Solar and lunar driven short-term variations as well as Bond events known from the North Atlantic Ocean superpose these trends. They lead to a pronounced increase of fluvial inputs between 8.6-8.4 ka BP and at ca. 3 ka BP as well as to dry events around 4.2 ka and 1.2-1 ka BP. Our study highlights the increasing influence of the westerlies on the sedimentation processes in the northeastern Arabian Sea towards the late Holocene.
英文关键词	Arabian sea Holocene Indian monsoon Westerlies Sediment Geochemical proxies
类型	Article
语种	英语
国家	Germany
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000483908900003
WOS关键词	OXYGEN MINIMUM ZONE ; INDIAN-SUMMER MONSOON ; INTERTROPICAL CONVERGENCE ZONE ; LATE QUATERNARY ; LAMINATED SEDIMENTS ; CLIMATE-CHANGE ; SISTAN REGION ; THAR DESERT ; SURFACE TEMPERATURE ; CONTINENTAL-MARGIN
WOS类目	Oceanography
WOS研究方向	Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215028
作者单位	1.Univ Hamburg, Inst Geol, Bundesstr 55, D-20146 Hamburg, Germany; 2.Bundesanstalt Geowissensch & Rohstoffe, Stilleweg 2, D-30655 Hannover, Germany; 3.Leibniz Zentrum Marine Tropenforsch ZMT, Fahrenheitstr 6, D-28359 Bremen, Germany; 4.Helmholtz Ctr Geesthacht, Inst Coastal Res, Max Planck Str 1, D-21502 Geesthacht, Germany
推荐引用方式 GB/T 7714	Burdanowitz, Nicole,Gaye, Birgit,Hilbig, Lea,et al. Holocene monsoon and sea level-related changes of sedimentation in the northeastern Arabian Sea[J],2019,166:6-18.
APA	Burdanowitz, Nicole.,Gaye, Birgit.,Hilbig, Lea.,Lahajnar, Niko.,Lueckge, Andreas.,...&Emeis, Kay-Christian.(2019).Holocene monsoon and sea level-related changes of sedimentation in the northeastern Arabian Sea.DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,166,6-18.
MLA	Burdanowitz, Nicole,et al."Holocene monsoon and sea level-related changes of sedimentation in the northeastern Arabian Sea".DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY 166(2019):6-18.