Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jafrearsci.2012.10.001 |
Hydrogeochemical investigation of surface and groundwater composition in an irrigated land in Central Tunisia | |
Farid, Intissar1; Zouari, Kamel1; Abid, Kamel1; Ayachi, Mohamed2 | |
通讯作者 | Farid, Intissar |
来源期刊 | JOURNAL OF AFRICAN EARTH SCIENCES
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ISSN | 1464-343X |
EISSN | 1879-1956 |
出版年 | 2013 |
卷号 | 78页码:16-27 |
英文摘要 | Major element concentrations, stable (delta O-18 and delta H-2) and radiogenic (H-3, C-14) isotopes determined in groundwater provided useful initial tracers for understanding the processes that control groundwater mineralization and identifying recharge sources in semi-arid Cherichira basin (central Tunisia). Chemical data based on the chemistry of several major ions has revealed that the main sources of salinity in the groundwaters are related to the water-rock interaction such as the dissolution of evaporitic and carbonate minerals and some reactions with silicate and feldspar minerals. The stable isotope compositions provide evidence that groundwaters are derived from recent recharge. The delta O-18 and delta H-2 relationships implied rapid infiltration during recharge to both the Oligocene and Quaternary aquifers, with only limited evaporation occurring in the Quaternary aquifer. Chemical and isotopic signatures of the reservoir waters show large seasonal evolution and differ clearly from those of groundwaters. Tritium data support the existence of recent recharge in Quaternary groundwaters. But, the low tritium values in Oligocene groundwaters are justified by the existence of clay lenses which limit the infiltration of meteoric water in the unsaturated zone and prolong the groundwater residence time. Carbon-14 activities confirm that groundwaters are recharged from the surface runoff coming from precipitation. (c) 2012 Elsevier Ltd. All rights reserved. |
英文关键词 | Cherichira basin Geochemistry Isotopes Recharge Evaporation process hill reservoirs |
类型 | Article |
语种 | 英语 |
国家 | Tunisia |
收录类别 | SCI-E |
WOS记录号 | WOS:000313767600002 |
WOS关键词 | RECHARGE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/177876 |
作者单位 | 1.Natl Engn Sch Sfax, Lab Radioanal & Environm, Sfax 3038, Tunisia; 2.Minist Agr, Kairouan Water Resources Div, Tunis, Tunisia |
推荐引用方式 GB/T 7714 | Farid, Intissar,Zouari, Kamel,Abid, Kamel,et al. Hydrogeochemical investigation of surface and groundwater composition in an irrigated land in Central Tunisia[J],2013,78:16-27. |
APA | Farid, Intissar,Zouari, Kamel,Abid, Kamel,&Ayachi, Mohamed.(2013).Hydrogeochemical investigation of surface and groundwater composition in an irrigated land in Central Tunisia.JOURNAL OF AFRICAN EARTH SCIENCES,78,16-27. |
MLA | Farid, Intissar,et al."Hydrogeochemical investigation of surface and groundwater composition in an irrigated land in Central Tunisia".JOURNAL OF AFRICAN EARTH SCIENCES 78(2013):16-27. |
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