气候变化领域集成服务门户(CCPortal): Paleoclimatology of the Levant from Zalmon Cave speleothems; the northern Jordan Valley; Israel

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DOI	10.1016/j.quascirev.2019.07.018
	Paleoclimatology of the Levant from Zalmon Cave speleothems; the northern Jordan Valley; Israel
	Keinan J.; Bar-Matthews M.; Ayalon A.; Zilberman T.; Agnon A.; Frumkin A.
发表日期	2019
ISSN	0277-3791
起始页码	142
结束页码	153
卷号	220
英文摘要	The Levant region of Israel, located along the Eastern Mediterranean Sea, is characterized by Mediterranean climate, but sixty km eastwards towards the Dead Sea Rift Valley (DSRV), the region rapidly becomes a ‘rain shadowʼ desert. Speleothems from the Mediterranean climate zone continuously grew throughout several glacial/interglacial cycles, indicating that water was always available in the unsaturated zone. Their δ18O variations match global and regional climate changes, with the Eastern Mediterranean Sea being the major control on their δ18O values, as evident from the similarity between the speleothems and the planktonic foraminifer G. ruber records. In contrast, speleothems along the central and southern segments of the DSRV grew mainly during last glacial periods coinciding with the higher stands of Lake Lisan, the precursor of the present-day Dead Sea. This paper discusses the newly discovered Zalmon Cave speleothems, located in the northern segment of the DSRV shedding light on the hydrological conditions along the rift during last glacial. Unlike speleothems located further south along the DSRV, Zalmon Cave speleothems grew both during glacial and interglacial periods. However, during last glacial their δ18O values, shifted to lower values by ∼1–2‰ relative to speleothems from central Israel coinciding also with the largest difference in δ18O values between Zalmon Cave speleothems and the marine record. The data suggest that a change of the westerlies' storm tracks occurred during most of the last glacial period, which resulted in increased rainfall in the northern DSRV providing freshwater input during the otherwise relatively ‘drierʼ glacial. © 2019 Elsevier Ltd
英文关键词	Dead Sea Rift Valley; Paleoclimate; Quaternary; Speleothems; Stable isotopes; U-Th series
语种	英语
scopus关键词	Binary alloys; Caves; Climate change; Rain; Thorium alloys; Uranium alloys; Paleoclimates; Quaternary; Rift valley; Speleothems; Stable isotopes; Glacial geology; climate change; dating method; freshwater input; glacial-interglacial cycle; Last Glacial; paleoclimate; planktonic foraminifera; Quaternary; rainfall; regional climate; speleothem; Dead Sea Rift; Israel; Jordan Valley; Levant; Mediterranean Region; Mediterranean Sea; Mediterranean Sea (East); Foraminifera
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/151806
作者单位	Geological Survey of Israel, Yisha'ayahu Leibowitz St. 32, Jerusalem, Israel; Institute of Earth Sciences, The Hebrew University, Jerusalem, 91904, Israel; Cave Research Center, The Hebrew University, Jerusalem, 90627, Israel
推荐引用方式 GB/T 7714	Keinan J.,Bar-Matthews M.,Ayalon A.,et al. Paleoclimatology of the Levant from Zalmon Cave speleothems; the northern Jordan Valley; Israel[J],2019,220.
APA	Keinan J.,Bar-Matthews M.,Ayalon A.,Zilberman T.,Agnon A.,&Frumkin A..(2019).Paleoclimatology of the Levant from Zalmon Cave speleothems; the northern Jordan Valley; Israel.Quaternary Science Reviews,220.
MLA	Keinan J.,et al."Paleoclimatology of the Levant from Zalmon Cave speleothems; the northern Jordan Valley; Israel".Quaternary Science Reviews 220(2019).