干旱区生态环境知识资源中心(Arid): Humid phases on the southwestern Arabian Peninsula are consistent with the last two interglacials

Arid

DOI	10.1016/j.quascirev.2023.108333
	Humid phases on the southwestern Arabian Peninsula are consistent with the last two interglacials
	Stone, Abi; Inglis, Robyn H.; Candy, Ian; Sahy, Diana; Jourdan, Anne-Lise; Barfod, Dan N.; Alsharekh, Abdullah M.
通讯作者	Stone, A
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
EISSN	1873-457X
出版年	2023
卷号	319
英文摘要	Past environmental and climatic conditions within the Arabian Peninsula are key to understanding the setting for hominin dispersal across the Saharo-Arabian dryland belt. The tufa deposits within the volcanic harrats on the southwest coast of Saudi Arabia fill a significant spatial gap in the distribution of palaeoenvironmental records on the west coast of the Arabian Peninsula adjacent to the Red Sea. In the catchment of Wadi Dabsa in the Harrat Al Birk, there are widespread fossil palustrine to shallow-lacustrine tufa deposits with fluvial elements. Several phases of tufa accumulation, separated by fluvial downcutting, are observable within these powerful palaeoenvironmental proxies. U-Th dating of targeted dense, banded tufa facies, yield ages that are stratigraphically consistent at the landscape scale, and indicate that tufa accumulation occurred during distinct humid phases broadly coeval with the last two warm interglacial Marine Isotope Stages (MIS 7 and MIS 5). For the first time this shows humid intervals in southwest Arabia coincident with the southern coast. There is a simlar pattern emerging further north in the Arabian Peninsula, The Sinai and Levant and further on into continental Europe. Furthermore, tufa delta O-18 ranges from -14.6 to - 1.9 parts per thousand, covering a range similar to those reported for tufa from north African oasis sites and speleothems elsewhere on the Arabian Peninsula and The Levant. The lowest delta O-18 values are derived from MIS 5e samples, a pattern in agreement with speleothems in Yemen and Oman, and consistent with an isotopic-enabled climate model simulation for this time slice. The delta C-13 and Sr isotopic compositions of dated tufa samples indicate deposition from shallow-circulating meteoric water, with no geothermal influence. This, along with the delta O-18 values, suggest a freshwater supply that was a potable water source in this landscape. The delta C-13 signatures at Wadi Dabsa are more negative than for parts of north Africa, suggesting Wadi Dabsa may have experienced comparatively higher biomass, thicker soils and wetter conditions with lower evaporative losses. This new record of tufa deposition during the middle and late Pleistocene, suggests for the first time that the west coast of Arabia experienced a similar history of humid phases over the past 250 ka as southern Arabia and the Nefud in the northern interior. These regional changes in hydroclimatic regime occur at timescales coincident with hominin dispersals.
英文关键词	Quaternary Pleistocene Arabian peninsula Saharo-arabian belt Palaeoenvironment Dryland Tufa Uranium-series dating Stable isotopes Hydrogeology Hydrology Human dispersal
类型	Article
语种	英语
开放获取类型	Green Accepted, hybrid
收录类别	SCI-E
WOS记录号	WOS:001088774900001
WOS关键词	EASTERN MEDITERRANEAN REGION ; STABLE-ISOTOPE ANALYSIS ; CENTRAL SAUDI-ARABIA ; LATE PLEISTOCENE ; WESTERN DESERT ; SOREQ CAVE ; SPELEOTHEM EVIDENCE ; NAUKLUFT MOUNTAINS ; TUFA DEPOSITS ; NEGEV DESERT
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/2XILL650/398204
推荐引用方式 GB/T 7714	Stone, Abi,Inglis, Robyn H.,Candy, Ian,et al. Humid phases on the southwestern Arabian Peninsula are consistent with the last two interglacials[J],2023,319.
APA	Stone, Abi.,Inglis, Robyn H..,Candy, Ian.,Sahy, Diana.,Jourdan, Anne-Lise.,...&Alsharekh, Abdullah M..(2023).Humid phases on the southwestern Arabian Peninsula are consistent with the last two interglacials.QUATERNARY SCIENCE REVIEWS,319.
MLA	Stone, Abi,et al."Humid phases on the southwestern Arabian Peninsula are consistent with the last two interglacials".QUATERNARY SCIENCE REVIEWS 319(2023).