干旱区生态环境知识资源中心(Arid): Hydrochemistry and multi-isotope study of the waters from Hanle-Gaggade grabens (Republic of Djibouti, East African Rift System): A low-enthalpy geothermal resource from a transboundary aquifer

Arid

DOI	10.1016/j.geothermics.2020.101805
	Hydrochemistry and multi-isotope study of the waters from Hanle-Gaggade grabens (Republic of Djibouti, East African Rift System): A low-enthalpy geothermal resource from a transboundary aquifer
	Awaleh, Mohamed Osman; Boschetti, Tiziano; Adaneh, Abdillahi Elmi; Daoud, Mohamed Ahmed; Ahmed, Moussa Mahdi; Dabar, Omar Assowe; Soubaneh, Youssouf Djibril; Kawalieh, Ali Dirir; Kadieh, Ibrahim Houssein
通讯作者	Awaleh, MO
来源期刊	GEOTHERMICS
ISSN	0375-6505
EISSN	1879-3576
出版年	2020
卷号	86
英文摘要	Water from ten thermal springs, five drinking-water boreholes and one hand-dug well from Hanle-Gaggade grabens has been analyzed for major-minor hydrogeochemical parameters and multi-isotope composition: delta H-2((HO)-O-2), delta O-18(H2O), delta O-18(SO42-), delta S-34(SO42-), delta C-13(DIC), C-14(DIC), and delta B-11. The interaction of the thermal water with both silicic (basaltic) and sedimentary rocks and its low enthalpy (T <= 150 degrees C) regime make this area an optimal site for testing chemical and isotope geothermometers and optimizing them for similar difficult cases. In this study, the use of radiogenic carbon (C-14) reveals that the age of the deep aquifer is between 12,500 and 8700 years ago (late Pleistocene/early-to-mid Holocene), which places it within the East African Humid Period. The oxygen and hydrogen stable isotope ratios of the water molecules, delta H-2(H2O), delta O-18(H2O), show common characteristics between the groundwater from this area and that of groundwater from nearby local lakes (Asal-Abhe) and palaeolakes (Sakalol-Hanle-Gaggade-Dobi), which were interconnected during that period to form the terminal Awash River Basin. The comparison of these aquifers within the transboundary aquifer located between northeast Ethiopia and Djibouti helps to reconstruct both the palaeoenvironmental history and the hydro-geochemical characteristics of this regional aquifer. At present, these data are poorly defined, but it is of fun-damental importance for the constructive use of water resources in arid areas. Finally, a conceptual model was proposed for the Hanle-Gaggade low-enthalpy geothermal system on the basis of the geochemical and isotope data on the thermal and non-thermal groundwaters combined with geological and tectonic information and the results of recent geophysical studies.
英文关键词	Djibouti Transboundary aquifer Stable isotopes Radiogenic isotopes Geothermometry
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000534152600017
WOS关键词	MAIN ETHIOPIAN RIFT ; EXTREME COMPOSITION ; MINERAL EQUILIBRIA ; AQUEOUS-SOLUTIONS ; CENTRAL AFAR ; RIVER-BASIN ; ASAL RIFT ; BORON ; FRACTIONATION ; CARBONATE
WOS类目	Energy & Fuels ; Geosciences, Multidisciplinary
WOS研究方向	Energy & Fuels ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324504
作者单位	[Awaleh, Mohamed Osman; Adaneh, Abdillahi Elmi; Daoud, Mohamed Ahmed; Ahmed, Moussa Mahdi; Dabar, Omar Assowe; Kawalieh, Ali Dirir] Ctr Etud & Rech Djibouti CERD, Inst Sci Terre, Route Aeroport,BP 486, Djibouti Ville, Djibouti; [Boschetti, Tiziano] Univ Parma, Dept Chem Life Sci & Environm Sustainabil, Parco Area Sci, I-43124 Parma, Italy; [Soubaneh, Youssouf Djibril] Univ Quebec Rimouski, Dept Biol Chim & Geog, 300 Allee Ursulines, Rimouski, PQ G5L 3A1, Canada; [Kadieh, Ibrahim Houssein] CRI Environm, 75 Rue Progres, Quebec City, PQ J0P 1B0, Canada
推荐引用方式 GB/T 7714	Awaleh, Mohamed Osman,Boschetti, Tiziano,Adaneh, Abdillahi Elmi,et al. Hydrochemistry and multi-isotope study of the waters from Hanle-Gaggade grabens (Republic of Djibouti, East African Rift System): A low-enthalpy geothermal resource from a transboundary aquifer[J],2020,86.
APA	Awaleh, Mohamed Osman.,Boschetti, Tiziano.,Adaneh, Abdillahi Elmi.,Daoud, Mohamed Ahmed.,Ahmed, Moussa Mahdi.,...&Kadieh, Ibrahim Houssein.(2020).Hydrochemistry and multi-isotope study of the waters from Hanle-Gaggade grabens (Republic of Djibouti, East African Rift System): A low-enthalpy geothermal resource from a transboundary aquifer.GEOTHERMICS,86.
MLA	Awaleh, Mohamed Osman,et al."Hydrochemistry and multi-isotope study of the waters from Hanle-Gaggade grabens (Republic of Djibouti, East African Rift System): A low-enthalpy geothermal resource from a transboundary aquifer".GEOTHERMICS 86(2020).