Contribution of electrical prospecting to the characterization of aquifers in the North Gabes-El Hamma region (Southern Tunisia)

Alayet, Mouna Ben; Ghaffar, Sabeh Ben; Zaghdoudi, Sabrine; Balti, Hadhemi; Gasmi, Mohamed

doi:10.1016/j.jafrearsci.2021.104159

Cited by 4 publications

(1 citation statement)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this context, the use of geophysical methods are useful for groundwater investigation. Electrical and seismic prospecting methods have confirmed their high efficiency and performance (Goldman and Neubauer, 1994;Choudhury et al, 2004;Boucher et al, 2009;Bersi et al, 2020;Ben Alayet et al, 2021). Geophysical prospecting using direct electric current injection is an appropriate tool for investigating deep formations.…”

Section: Introductionmentioning

confidence: 99%

Hydrogeological characterization of the Complex Terminal aquifer using geoelectrical investigation in the arid environment of Chetma-Biskra (South-East of Algeria)

Kessasra

Mezerreg²,

Dehibi³

et al. 2023

AS-ITJGW

View full text Add to dashboard Cite

As a transition hydrogeological area, Biskra (Algeria) holds large groundwater resources in deeply buried aquifers such as the Complex Terminal. Due to a growing demand of drinking water supply and irrigation combined to low recharge, this arid region is facing an acute shortage of water and hence, the need for groundwater investigation. We used an integrated approach including geophysical investigation correlated to the geological and hydrogeological context in the Chetma area. The results highlight a deep structural form with significant hydrogeological features. In fact, two resistant limestone anticlines called Droh corresponding to a piezometric dome and a syncline filled with conductive deposit materials were identified. The Maastrichtian formation, consisting of fractured limestone, about 200 to 350 m thick, together with Lower Eocene marl limestone and limestone form a complex aquifer. At more than 400 m depth, boreholes capturing Maastrichtian limestone offer a high yield ranging from 25 to 90 L/s. Moreover, groundwater yield provides an average of 40 L/s at 300 m of depth. In contrast, synform geometries with high clay and marl content offer a weak groundwater yield. We confirmed the occurence of fractured aquifers which could constitute potentially groundwater production zones. This study provides new insights to enhance groundwater pumping for domestic and irrigation purposes for 2030.

show abstract