气候变化领域集成服务门户(CCPortal): Mobilization of fine detritus to the Dead Sea Basin during the late glacial and early Holocene

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DOI	10.1016/j.quascirev.2019.05.028
	Mobilization of fine detritus to the Dead Sea Basin during the late glacial and early Holocene
	Palchan D.; Erel Y.; Stein M.
发表日期	2019
ISSN	0277-3791
起始页码	395
结束页码	405
卷号	218
英文摘要	The mineralogical, grain size and geochemical properties (e.g., Nd and Sr isotopes, Mg/Al ratios) of fine detritus that accumulated in the Dead Sea during the late Glacial to early Holocene time (∼22–7 ka) are used to identify its sources and modes of transport and to reconstruct the hydroclimate conditions in the Dead Sea watershed. Samples were retrieved from the DSDDP -5017-1A core that was drilled in the deep floor of the lake, and from various exposures of surface cover in the lake's watershed. The data show that during most of the late glacial, detrital particles were either directly blown mostly from the north Sahara Desert or were washed from the surface cover (loessial soils) of the north Negev Desert and Judea Desert. This picture changed during the end of the last glacial to the early Holocene (∼14 - 7 ka) when the fine detritus showed evidence for contribution from surface cover that contained basaltic soils. The contribution of basaltic soils to the fine detritus inventory of the Dead Sea and to terraces in the Jordan Valley, indicates a period of intense erosion in the northern highlands of the Dead Sea watershed, at an interval that partly coincides with Sapropel S1. In contrast, during the last interglacial Sapropel S5, fine detritus was mostly mobilized to the lake from southern and eastern region of the watershed. The formation and accumulation of terraces from this basaltic-derived material could be an important factor in the establishment of early agriculture settlements in the Jordan Valley. © 2019 Elsevier Ltd
语种	英语
scopus关键词	Basalt; Glacial geology; Lakes; Seawater; Soils; Watersheds; Basaltic soils; Dead sea basins; Derived materials; Early Holocene; Eastern regions; Geochemical properties; Jordan valley; Last interglacial; Landforms; basalt; detritus; fine grained sediment; grain size; Holocene; late glacial; mobilization; sapropel; seafloor; submarine terrace; Dead Sea; Israel; Jordan Valley; Negev; Sahara; Southern District
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151838
作者单位	Institute of Earth Sciences, The Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel; Geological Survey of Israel, 30 Malkhe Israel St., Jerusalem, Israel
推荐引用方式 GB/T 7714	Palchan D.,Erel Y.,Stein M.. Mobilization of fine detritus to the Dead Sea Basin during the late glacial and early Holocene[J],2019,218.
APA	Palchan D.,Erel Y.,&Stein M..(2019).Mobilization of fine detritus to the Dead Sea Basin during the late glacial and early Holocene.Quaternary Science Reviews,218.
MLA	Palchan D.,et al."Mobilization of fine detritus to the Dead Sea Basin during the late glacial and early Holocene".Quaternary Science Reviews 218(2019).