干旱区生态环境知识资源中心(Arid): Joint Gravity and Seismic Reflection Methods to Characterize the Deep Aquifers in Arid Ain El Beidha Plain (Central Tunisia, North Africa)

Arid

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
通讯作者	Azaiez, H (corresponding author), Univ Carthage, CERTE, Ctr Rech & Technol Eaux, Georesources Lab, Borj Cedria Technopk BO 273, Soliman 8020, Tunisia.
来源期刊	WATER
EISSN	2073-4441
出版年	2021
卷号	13 期号:9
英文摘要	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.
英文关键词	gravity seismic reflection deep aquifers structures Tunisia
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000650913600001
WOS关键词	OULED ASKER AREA ; POTENTIAL-FIELD ; EXAMPLE
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351963
作者单位	[Azaiez, Hajer; Gabtni, Hakim; Bedir, Mourad] Univ Carthage, CERTE, Ctr Rech & Technol Eaux, Georesources Lab, Borj Cedria Technopk BO 273, Soliman 8020, Tunisia
推荐引用方式 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).