3. Data and Methods
Like any model, the 3D structural model is at best a simplified view of reality that depends on the choice of the
scale, prior assumptions about the characteristics of geological objects, quantity and quality of the information
available and also limits on the software. Namely, the 3D geological model of the High Ziz basin was carried
out on based of geological data from geologic maps [2], and recognition surveys in the study area. Indeed, the
database used to build the model contains 81 electrical soundings [14] on behalf of the Directorate of Research
and Planning Water were included in this study, 200 boreholes (Figure 2), executed from 1956 to 2014, including,
the borehole N˚ TMT1 is the deepest.
It is run Timetroute to a total depth of 1831 m and intercepted the roof of the aquifer Domerian 1100 m and
400 m in Aalenian aquifer. The borehole did not reach the base of the Jurassic; we then took the maximum
drilling depth considered for this limit. The acquired data were analyzed and selected, and then integrated into
the software GMS 6.0 (Groundwater Modeling System 6.0). Thus, to construct the model we considered four lithostratigraphic
units: Quaternary (code 1), Batho-Bajocian (code 2) Aalenian (code 3) Taoarcian (code 4) and
Domerian (code 5). The modeling process includes the following steps: inventory of available boreholes; analysis
3. Data and MethodsLike any model, the 3D structural model is at best a simplified view of reality that depends on the choice of thescale, prior assumptions about the characteristics of geological objects, quantity and quality of the informationavailable and also limits on the software. Namely, the 3D geological model of the High Ziz basin was carriedout on based of geological data from geologic maps [2], and recognition surveys in the study area. Indeed, thedatabase used to build the model contains 81 electrical soundings [14] on behalf of the Directorate of Researchand Planning Water were included in this study, 200 boreholes (Figure 2), executed from 1956 to 2014, including,the borehole N˚ TMT1 is the deepest.It is run Timetroute to a total depth of 1831 m and intercepted the roof of the aquifer Domerian 1100 m and400 m in Aalenian aquifer. The borehole did not reach the base of the Jurassic; we then took the maximumdrilling depth considered for this limit. The acquired data were analyzed and selected, and then integrated intothe software GMS 6.0 (Groundwater Modeling System 6.0). Thus, to construct the model we considered four lithostratigraphicunits: Quaternary (code 1), Batho-Bajocian (code 2) Aalenian (code 3) Taoarcian (code 4) andDomerian (code 5). The modeling process includes the following steps: inventory of available boreholes; analysis
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