干旱区生态环境知识资源中心(Arid): Development of the Nile Littoral Cell during the past 8.2 kyr

Arid

DOI	10.1016/j.quascirev.2021.107262
	Development of the Nile Littoral Cell during the past 8.2 kyr
	Bookman, Revital; Mor-Federman, Tsofit; Herut, Barak; Harlavan, Yehudit; Taha, Nimer; Stein, Mordechai; Almogi-Labin, Ahuva
通讯作者	Bookman, R (corresponding author), Univ Haifa, Charney Sch Marine Sci, Dr Strauss Dept Marine Geosci, Haifa, Israel.
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
EISSN	1873-457X
出版年	2021
卷号	274
英文摘要	The depositional history of the Nile Littoral Cell (NLC) in the past 8.2 kyr was reconstructed from two radiocarbon-dated cores retrieved down-flow the Nile Delta at the southeastern Mediterranean-Levantine continental shelf. The two cores are located similar to 80 km apart at the inner shelf off-shore Israel: core V115 at a southern proximal site and core V101 at a northern distal site. Grain-size distribution, chemical composition, and epsilon Nd and Sr-87/Sr-86 isotope ratios and marine derived variables such as carbonate content, total organic carbon and its delta C-13 composition record the temporal and spatial variations in transport processes and sediment provenance. From similar to 8.2 to similar to 5.5 ka BP the record is dominated by coarse quartz sands from the Nile Delta front that were recycled along the NLC due to shelf transgression along with the post glacial sea level rise. Oligotrophic conditions prevailed in the inner shelf, and the relatively high carbonate content reflects the decrease in Nilotic fine particles due to increased vegetation and decrease in surface erosion related to the African Humid Period (AHP) wetter conditions. The chemical and isotope signature of the fine fractions indicates mostly remobilization of dust-driven surface cover soils from the surrounding lands that originated from the granitoid terrains of the Sahara-Arabia deserts. Sea level stabilization, termination of the AHP at similar to 5.5 ka BP and the partial drying of the Ethiopian Highlands resulted in the increase of fine sediments with a basaltic signature. After similar to 5.5 ka BP, fine sediments were supplied seasonally by the Nile, creating a distinct mud belt along the Israeli coast and Nile Delta at water depth exceeding similar to 35 m. Occasional sediment coarsening in the distal NLC likely reflects periodical decrease in Nile floods discharge or contribution from shallower water depth due to increased storminess. With the continuation of the regional aridification and decreasing intensity of the Nile River flow during the last 2 kyr, higher contribution of surface cover particles from the nearby lands was recorded in the distal northern site, while the southern site continued to be affected mostly by the Nilotic contribution. A distinct increase in grain size and carbonate content, and decrease in TOC content and delta C-13(org) values at the topmost part of the sedimentary record represent the Nile River damming during the modern period, which resulted in halting of the Nile fine suspension and lead to ultra-oligotrophic conditions in the Levantine basin. (C) 2021 Elsevier Ltd. All rights reserved.
英文关键词	Nile river East mediterranean Desert dust Loessian soils African humid period Holocene aridification Hydro-climatic conditions Sr-87/Sr-86-epsilon Nd isotopes Sea level transgression
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000723190100007
WOS关键词	HOLOCENE CLIMATE VARIABILITY ; EASTERN MEDITERRANEAN REGION ; AFRICAN HUMID PERIOD ; SEA-LEVEL CHANGES ; DEAD-SEA ; FINE DETRITUS ; RED-SEA ; BENTHIC FORAMINIFERA ; SYNOPTIC CONDITIONS ; CONTINENTAL-SHELF
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374136
作者单位	[Bookman, Revital; Mor-Federman, Tsofit; Herut, Barak; Taha, Nimer] Univ Haifa, Charney Sch Marine Sci, Dr Strauss Dept Marine Geosci, Haifa, Israel; [Herut, Barak] Israel Oceanog & Limnol Res, IL-31080 Haifa, Israel; [Harlavan, Yehudit; Stein, Mordechai; Almogi-Labin, Ahuva] Geol Survey Israel, 32 Yeshaayahu Leibowitz, IL-9692100 Jerusalem, Israel; [Stein, Mordechai] Hebrew Univ Jerusalem, Inst Earth Sci, Jerusalem, Israel
推荐引用方式 GB/T 7714	Bookman, Revital,Mor-Federman, Tsofit,Herut, Barak,et al. Development of the Nile Littoral Cell during the past 8.2 kyr[J],2021,274.
APA	Bookman, Revital.,Mor-Federman, Tsofit.,Herut, Barak.,Harlavan, Yehudit.,Taha, Nimer.,...&Almogi-Labin, Ahuva.(2021).Development of the Nile Littoral Cell during the past 8.2 kyr.QUATERNARY SCIENCE REVIEWS,274.
MLA	Bookman, Revital,et al."Development of the Nile Littoral Cell during the past 8.2 kyr".QUATERNARY SCIENCE REVIEWS 274(2021).