A conceptual framework of groundwater flowpath and recharge in Ziban aquifer: south of Algeria
- PDF / 9,345,449 Bytes
- 15 Pages / 595.276 x 790.866 pts Page_size
- 37 Downloads / 191 Views
(2021) 7:2
ORIGINAL ARTICLE
A conceptual framework of groundwater flowpath and recharge in Ziban aquifer: south of Algeria Nabil Chabour1 · Hénia Dib1 · Foued Bouaicha1 · Mohamed Amine Bechkit2 · Nasreddine Messaoud Nacer3 Received: 2 May 2019 / Accepted: 3 November 2020 © Springer Nature Switzerland AG 2020
Abstract The Zyban aquifers (southern Algeria) are an important source of groundwater and are mainly found in limestone and dolomite from the Senono-Eocene. To be able to assess the effects of overuse of the Zeban groundwater, it is necessary to understand the origin of the recharge and determine its path out of the recharge zones. This study aims to better understand the flow path and replenishment areas using hydrology. For this purpose, 145 water samples were collected and analyzed for the determination of major ions and isotopes (18O, 2H and 3H). The isotope analysis of hydrogen, oxygen and tritium allowed a certain distinction between the origin and the mixture of water. The study area is located in the fault corridor of the South Atlas, a network of migration and folding defects that leads to a complex structure characterized by the subdivision of the formations and the variety of facies. The regional flow pattern is mainly influenced by the topography, and this is through the distribution of supply and flow, which is produced by transport at many depths and levels of distribution (local or regional). The rocky nature and the severe fractures are responsible for the division of the hydrogeological units and play an important role in the dynamics and transport of the groundwater. The hydrodynamic analysis shows the dominance of regional hydrogeology in terms of geological nature and structure. This is supported by a hydrochemical signal showing the distribution and evolution of the elements according to the structural and geological scheme (evolution from calcium bicarbonate facies to calcium sulphate medium facies). Keywords Aurès · Leakage · Oxygene-18 · Recharge · Saharian Atlas and tritium
Introduction
* Foued Bouaicha [email protected]; [email protected] Nabil Chabour [email protected] Hénia Dib [email protected] Mohamed Amine Bechkit mohamed‑[email protected] Nasreddine Messaoud Nacer [email protected] 1
Laboratory of Geology and Environnement (LGE), Université frères Mentouri Constantine 1, 025000 Constantine, Algeria
2
Université des Sciences et Technologie Houari Boumediene, 16000 Algiers, Algeria
3
Université Saad Dahlab de Blida, 09000 Ouled Yaïch, Algeria
The area of Biskra hydrologic basin appears as the transition and the transfer zone of groundwater between aurésiens hydrosystem and those of the Eastern Saharan Atlas (Hodna region) and the northeastern borders of the Lower Sahara. These regions contain sometimes huge water reservoirs and consist of a series of aquifers of different ages and lithologies. The aquifers of Zibans belong to regional aquifer systems of great extension: aquifer of the Complexe Terminal (CT) in relation with th
Data Loading...
