干旱区生态环境知识资源中心(Arid): Chemical evolution of an inland sabkha: a case study from Sabkha Matti, Saudi Arabia

Arid

DOI	10.1007/s10040-021-02346-8
	Chemical evolution of an inland sabkha: a case study from Sabkha Matti, Saudi Arabia
	Saeed, Waleed; Shouakar-Stash, Orfan; Unger, Andre; Wood, Warren W.; Parker, Beth
通讯作者	Saeed, W (corresponding author), Univ Waterloo, Dept Earth & Environm Sci, Waterloo, ON N2L 3G1, Canada.
来源期刊	HYDROGEOLOGY JOURNAL
ISSN	1431-2174
EISSN	1435-0157
出版年	2021
英文摘要	Sabkha Matti is a potential discharge point for regional groundwater systems in the Rub' al Khali topographic basin of Saudi Arabia. The hydrogeochemical evolution of this sabkha (salt flat) and the underlying aquifers were assessed by using a combination of geological, hydraulic, hydrochemical, and isotopic approaches. A compilation of the geologic structure and lithology in combination with boron isotope data attributed the origin of salinity in the regional aquifers underlying Sabkha Matti to the entrapment of ancient seawater in a coastal lagoon environment during the depositional time of the late Oligocene-Miocene formations. Major ionic constituents and strontium isotope ratios from the trapped paleo-seawater were observed to resemble those obtained from the near-surface sabkha brine. These data, along with hydrostatic head measurements, suggest that the origin of the solutes in Sabkha Matti is associated with brines ascending from the underlying formations. The data also show that solute concentrations in Sabkha Matti are increasing over time through a combination of evaporation, mineral dissolution by recharge, and a density-driven convection mechanism that circulates the solutes. On the other hand, stable isotopes of water (delta O-18, delta H-2) and radio isotope data (C-14 and H-3) suggest that the existing waters in the sabkha and the underlying aquifers are relatively recent and were recharged during the wet phase in the late Pleistocene-Holocene between 3,200 and 14,000 BP. This study shows that the water and solutes in Sabkha Matti area are a combination from different sources.
英文关键词	Arid regions Hydrochemistry Stable isotopes Solute transport Radioactive isotopes Saudi Arabia
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000640848500002
WOS关键词	BORON ISOTOPE GEOCHEMISTRY ; ABU-DHABI ; STRONTIUM ISOTOPES ; COASTAL SABKHA ; NORTHERN OMAN ; SEA-WATER ; EVAPORATION ; BRINES ; STRATIGRAPHY ; CARBONATES
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352226
作者单位	[Saeed, Waleed; Shouakar-Stash, Orfan; Unger, Andre] Univ Waterloo, Dept Earth & Environm Sci, Waterloo, ON N2L 3G1, Canada; [Shouakar-Stash, Orfan] Isotope Tracer Technol Inc, Waterloo, ON N2V 1Z5, Canada; [Wood, Warren W.] Michigan State Univ, Dept Earth & Environm Sci, 288 Farm Lane, E Lansing, MI 48824 USA; [Shouakar-Stash, Orfan; Parker, Beth] Univ Guelph, Sch Engn, Guelph, ON N1G 2W2, Canada
推荐引用方式 GB/T 7714	Saeed, Waleed,Shouakar-Stash, Orfan,Unger, Andre,et al. Chemical evolution of an inland sabkha: a case study from Sabkha Matti, Saudi Arabia[J],2021.
APA	Saeed, Waleed,Shouakar-Stash, Orfan,Unger, Andre,Wood, Warren W.,&Parker, Beth.(2021).Chemical evolution of an inland sabkha: a case study from Sabkha Matti, Saudi Arabia.HYDROGEOLOGY JOURNAL.
MLA	Saeed, Waleed,et al."Chemical evolution of an inland sabkha: a case study from Sabkha Matti, Saudi Arabia".HYDROGEOLOGY JOURNAL (2021).