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Titel (primär) Structural control on groundwater chemistry, recharge and flow - Integrated approach using remote sensing, GIS and modelling: The case study of Wadi Zerka Ma'in catchment area (Jordan)
Autor Odeh, T.;
Journal / Serie PhD Dissertation
Erscheinungsjahr 2011
Department CATHYD;
Band/Volume 8/2011
Sprache englisch;
UFZ Bestand Leipzig, Bibliothek, Reportsammlung, 00456593, 11-1199 F/E
Abstract

Wadi Zerka Ma’in catchment area is the smallest catchment area at the eastern side of the Dead Sea and encompasses the largest city at that side. It is characterized two types of aquifers: 1) an upper unconfined aquifer and 2) a lower confined aquifer. The two aquifers are separated by a marl aquiclude. A major strike slip fault passes perpendicularly through the two aquifers and the aquiclude layer with embedded normal faults. Theses faults form conduits that allow groundwater to flow from the lower aquifer to the upper aquifer, resulting in mixed groundwater. The ration of mixing was esti-mated to be 96 % groundwater from the upper aquifer and 4 % from the lower aquifer. Since groundwater in the lower aquifer is around three times more saline than the upper aquifer, water mixing into the upper water aquifer generates a salinity hazard. The topographic profile of the Zerka Ma’in River exhibits two knickpoints. The first one located where the river crosses a major embedded normal faults. The second knickpoint developed as a result of the dramatic lowering of the Lisan lake water level, a lake that pre-dates the Dead Sea. The decreased water level triggered river incision into the clastic sandstone units of Wadi Zerka Ma’in. According to the transverse topographic symmetry factor (T), the catchment area is highly asymmetric. The major basin asymmetry trend is SE-oriented, parallel to the oldest set of faults. Climatically and geomorphologically, Wadi Zerka Ma’in catchment area is considered heterogeneous as a result of the major strike slip fault. The catchment area receives a direct groundwater recharge from a hydrogeological boundaries area of 611.25 km2 and has a spatial distribution of groundwater recharge as a result of that heterogeneity that caused by the major strike slip fault. However, the major strike slip fault affects also the groundwater flow by generating a high permeability zones.
ID 11815
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=11815
Odeh, T. (2011):
Structural control on groundwater chemistry, recharge and flow - Integrated approach using remote sensing, GIS and modelling: The case study of Wadi Zerka Ma'in catchment area (Jordan)
Dissertation, TU Bergakademie Freiberg
PhD Dissertation 8/2011
Helmholtz-Zentrum für Umweltforschung - UFZ, Leipzig, 147 pp.