Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3390/w13091310 |
| Joint Gravity and Seismic Reflection Methods to Characterize the Deep Aquifers in Arid Ain El Beidha Plain (Central Tunisia, North Africa) | |
| Azaiez, Hajer; Gabtni, Hakim; Bedir, Mourad | |
| Corresponding Author | Azaiez, H (corresponding author), Univ Carthage, CERTE, Ctr Rech & Technol Eaux, Georesources Lab, Borj Cedria Technopk BO 273, Soliman 8020, Tunisia. |
| Journal | WATER
 |
| EISSN | 2073-4441 |
| Year Published | 2021 |
| Volume | 13Issue:9 |
| Abstract in English | Electric resistivity sounding and tomography, as well as electromagnetic sounding, are the classical methods frequently used for hydrogeological studies. In this work, we propose the development and implementation of an original integrated approach using the unconventional hydro-geophysical methods of gravity and seismic reflection for the fast, large-scale characterization of hydrogeological potential using the Ain El Beidha plain (central Tunisia) as an analogue. Extending the values of vintage petroleum seismic reflection profiles and gravity data, in conjunction with available geological and hydrogeological information, we performed an advanced analysis to characterize the geometry of deep tertiary (Oligocene and Eocene) aquifers in this arid area. Residual and tilt angle gravity maps revealed that most gravity anomalies have a short wavelength. The study area was mainly composed of three major areas: the Oued Ben Zitoun and Ain El Beidha basins, which are both related to negative gravity trends corresponding to low-density subsiding depocenters. These basins are separated by an important NE-SW trend called El Gonna-J. El Mguataa-Kroumet Zemla gravity high. Evaluation of the superposition of detected lineaments and Euler deconvolution solutions' maps showed several NE-SW and N-S relay system faults. The 3D density inversion model using a lateral and vertical cutting plane suggested the presence of two different tectonic styles (thin VS thick). Results from the gravity analysis were in concordance with the seismic analysis. The deep Oligocene and Eocene seismic horizons were calibrated to the hydraulic wells and surrounding outcrops. Oligocene and Eocene geological reservoirs appear very fractured and compartmented. The faulting network also plays an important role in enhancing groundwater recharge process of the Oligocene and Eocene aquifers. Finally, generated isochron maps provided an excellent opportunity to develop future comprehensive exploration surveys over smaller and more favorable areas' sub-basins. |
| Keyword in English | gravity seismic reflection deep aquifers structures Tunisia |
| Subtype | Article |
| Language | 英语 |
| OA Type | gold |
| Indexed By | SCI-E |
| WOS ID | WOS:000650913600001 |
| WOS Keyword | OULED ASKER AREA ; POTENTIAL-FIELD ; EXAMPLE |
| WOS Subject | Environmental Sciences ; Water Resources |
| WOS Research Area | Environmental Sciences & Ecology ; Water Resources |
| Document Type | 期刊论文 |
| Identifier | http://119.78.100.177/qdio/handle/2XILL650/351963 |
| Affiliation | [Azaiez, Hajer; Gabtni, Hakim; Bedir, Mourad] Univ Carthage, CERTE, Ctr Rech & Technol Eaux, Georesources Lab, Borj Cedria Technopk BO 273, Soliman 8020, Tunisia |
| Recommended Citation GB/T 7714 | Azaiez, Hajer,Gabtni, Hakim,Bedir, Mourad. Joint Gravity and Seismic Reflection Methods to Characterize the Deep Aquifers in Arid Ain El Beidha Plain (Central Tunisia, North Africa)[J],2021,13(9). |
| APA | Azaiez, Hajer,Gabtni, Hakim,&Bedir, Mourad.(2021).Joint Gravity and Seismic Reflection Methods to Characterize the Deep Aquifers in Arid Ain El Beidha Plain (Central Tunisia, North Africa).WATER,13(9). |
| MLA | Azaiez, Hajer,et al."Joint Gravity and Seismic Reflection Methods to Characterize the Deep Aquifers in Arid Ain El Beidha Plain (Central Tunisia, North Africa)".WATER 13.9(2021). |
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