Impact of subsurface structures on groundwater exploration using aeromagnetic and geoelectrical data: a case study at As
- PDF / 45,358,565 Bytes
- 17 Pages / 595.276 x 790.866 pts Page_size
- 77 Downloads / 222 Views
S. I. TANTA-ISG 2018
Impact of subsurface structures on groundwater exploration using aeromagnetic and geoelectrical data: a case study at Aswan City, Egypt Ahmed M. Meneisy 1 Received: 30 June 2020 / Accepted: 31 October 2020 # Saudi Society for Geosciences 2020
Abstract Geological evaluation and groundwater assessment, especially in arid areas, are considerable targets for constructing recent and sustainable development communities. The current work aims to apply an integrated approach to acquire geologic structures and groundwater potentiality at highly deformed area. As a case study, remote sensing (RS), aeromagnetic, and geoelectrical data are conducted to delineate the subsurface structures and hydrogeological regime at Aswan City. Initially, remote sensing data with GIS software are utilized to delineate the surface structures and watershed configuration. Moreover, the reduced to magnetic pole (RTP) aeromagnetic data is processed and interpreted using appropriate filters. In an attempt to demonstrate the subsurface structures and basement relief maps, the RTP map was analyzed considering the RS data which was stated in previous stage. In the light of RTP aeromagnetic results and well logging data, the direct current resistivity (DCR) sounding is executed particularly along paleochannel and flood plain portion. Due to the inversion process problem of DCR field data, advanced solutions and algorithms are applied to improve the property of the results. Based upon overall results mentioned above, the correlation between subsurface structures and aquifer formation can be monitored. The present approach can be applied for groundwater exploration in this and other similar geological and hydrogeological environments around the world. Keywords Remote sensing . RTP aeromagnetic . DCR soundings . Highly deformed areas . Hydrogeological regime
Introduction The initiation of recently developed communities and reclamation works in the arid areas demands different issues. Arid and semi-arid environments are characterized by water-rare. The lack of hydrogeological data in the water-rare environments decreases the ability to comprehend the groundwater aquifers. Understanding the hydrogeological regime is essential issue of sustainable development. In spite of the groundwater reservoirs being vastly spreading, it needs many and hard efforts to explore. Therefore, the occurrence of groundwater is accompanied with particular geological formations This article is part of the Topical Collection on Advances of Geophysical and Geological Prospection for Natural Resources in Egypt and the Middle East * Ahmed M. Meneisy [email protected] 1
Department of Geology, Faculty of Science, Aswan University, Aswan, Egypt
and structure setting. Recently, remote sensing (RS) data and geographic information systems (GIS) technique are widely applied in coincidence with geophysical data sets to detect information about the hydrogeological properties of the different rock units (Kearey et al. 2002; El Bastawesy et al. 2019; Attwa e
