Hydrologic and geologic factors controlling groundwater geochemistry in the Turonian aquifer (southern Tunisia)Facteurs géologiques et hydrauliques contrôlant la géochimie de nappe dans l’Aquifère turonien (Tunisie du Sud)Factores hidrológicos y geológicos que controlan la geoquímica del agua subterránea en el acuífero Turonian (sur de Túnez)دور العوامل الهيدرولوجية والجيولوجية في تغيير الخصائص الجيوكيميائية للمياه الجوفية للتورونيان (جنوب تونس(Factores geológicos e hidrológicos que controlam a geoquímica das águas subterrâneas no aquífero Turoniano (Sul da Tunísia)

被引：0
作者：
Kamel Abid
Kamel Zouari
Marek Dulinski
Najiba Chkir
Brahim Abidi
机构：
[1] École Nationale d’Ingénieurs de Sfax,Faculty of Physics and Applied Computer Science
[2] AGH University of Science and Technology,Arrondissement des Ressources en Eau
[3] Commissariat Régionale au Développement Agricole de Gabès Route de Médenine,undefined
来源：
Hydrogeology Journal | 2011年 / 19卷 / 2期
关键词：
Tunisia; Precipitation; Dissolution; Ion exchange; Mixing process;
D O I：
10.1007/s10040-010-0668-z
中图分类号：
学科分类号：
摘要：
Water in the fissured limestone and dolomite of the Turonian aquifer of Tunisia has been investigated using geochemical (major ions) and isotopic (δ18O, δ2H, 14C) data. To carry out a characterization of aquifer behaviour, 48 representative samples were collected at the end of the humid season. The evolution of chemical composition of groundwater from recharge areas to discharge areas is characterized by increasing sodium, chloride and sulphate contents as a result of leaching of evaporite rock. In the study, three distinct chemical trends in groundwater were identified. The major reactions responsible for the chemical evolution of groundwater in the investigated area fall into three categories: (1) calcite precipitation, (2) gypsum and halite dissolution, and (3) ion exchange. The stable isotope composition of water samples indicates large-scale interaction between the Continental Intercalaire and the Turonian aquifer and the presence of a young local component which probably enters the system via faults and/or fractures.
引用
收藏
页码：415 / 427
页数：12
相关论文
共 57 条
  • [1] Abid K(2009)Caractérisation hydrogéochimique de la nappe du Continental Intercalaire (Sud tunisien) [Hydrogeochemical characterization of the Continental Intercalaire aquifer (southern Tunisia)] J Sci Hydrol 54 526-537
  • [2] Trabelsi R(1994)The evolution of alkaline aquifer of the Irhazer Plain, Niger Water Resour Res 30 45-61
  • [3] Zouari K(1994)Chemical evolution of groundwater in Triassic gypsum-bearing carbonate aquifers (Las Alpujarras, southern Spain) J Hydrol 161 3-30
  • [4] Abidi B(1991)Improvement in the gaseous hydrogen-water equilibration technique for hydrogen isotopes ration analysis Anal Chem 63 910-912
  • [5] Andrews JN(1992)The use of hydrochemical sections to identify recharge areas and saline intrusions in alluvial aquifers, southeast Queensland, Australia J Hydrol 130 299-338
  • [6] Fontes JC(1982)Hydrochemical evolution of the East Midlands Triassic sandstone aquifer, England Geochim Cosmochim Acta 46 2069-2081
  • [7] Aranyossy JF(2003)Groundwater evolution in the Continental Intercalaire aquifer of southern Algeria and Tunisia: trace element and isotopic indicators Appl Geochem 18 805-822
  • [8] Dodo A(1953)Variations of Geochim Cosmochim Acta 4 213-224
  • [9] Edmunds WM(1971)O content of waters from natural sources Rev Geog Phys Géol Dyn 13 67-86
  • [10] Joseph A(1983)Un ensemble destiné à la mesure de l’activité du radiocarbone naturel par scintillation liquide [A unit intended for the measurement of the activity of natural radiocarbon by liquid scintillation] Palaeogeogr Palaeontol Palaeogeol 43 41-61
123456