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Groundwater Potential Mapping in Lapan Gwari Community Using Integrated Remote Sensing and Electrical Resistivity Soundings

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International Journal of Geosciences 2023年第8期14卷 719-732页

作者： ayuba danmangu mangs Jude Steven Ejepu Charity Chizaram Nkemkah Solomon Nehemiah Yusuf Adamu Keana Sallau Janet Agati Yakubu Yusuf Ibrahim Williams Midala Wakili Department of Geology University of Jos Jos Nigeria Department of Geology School of Physical Sciences Federal University of Technology Minna Nigeria The Carter Centre Jos Nigeria Department of Geology University of Maiduguri Maiduguri Nigeria Department of Geology Modibbo Adama University of Technology Yola Nigeria

This research aims to address the pressing issue of failed and abandoned wells, causing water scarcity in Lapan Gwari Community, through an improved groundwater exploration approach integrating remote sensing and electrical resistivity soundings. The study area, located within the Zungeru Sheet 163 SE, spans Latitudes 9°30'00"N to 9°32'00"N and Longitudes 6°28'00" to 6°30'00". The surface geologic, structural, and hydrogeological mapping provided essential insights into the hydrogeological framework. Leveraging SRTM DEM data, thematic maps were created for geomorphology, slope, land use, lineament density, and drainage density. These datasets were then integrated using ArcGIS to develop a preliminary groundwater potential zones map. Further investigations were conducted using Vertical Electrical Sounding (VES) and Electrical Resistivity Imaging (2D VES) surveys at targeted locations identified by the preliminary map. Results show that the study area predominantly consists of crystalline rocks of the Nigerian Basement Complex, primarily comprising schist and granite with minor occurrences of quartz vein intrusions. Surface joint directions indicated a dominant NE-SW trend. The VES data revealed three to four geoelectric layers, encompassing the topsoil (1 to 5 m depth, resistivity: 100 Ωm to 300 Ωm), the weathered layer (in the 3-layer system) or fractured layer (in the 4-layer system), and the fresh basement rock characterized by infinite resistivity. The shallow weathered layers (3 to 30 m thickness) are believed to hold aquiferous potential. Hydrogeological interpretation, facilitated by 2D resistivity models, delineated water horizons trapped within clayey sand and weathered/fractured formations. Notably, the aquifer resistivity range was found to be between 3 - 35 m and 100 - 300 Ωm, signifying a promising aquifer positioned at depths of 40 to 88 m. This aligns with corroborative static water level measurements. Given this, we recommend drilling depths of a mini

关键词： Vertical Electrical Sounding Electrical Resistivity Imaging Fractured Aquifer Groundwater Exploration

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Lead and Mercury Contamination Assoc=atea with Artisanal Gold Mining in Anka, Zamfara State, North Western Nigeria： The Continued Unabated Zamfara Lead Poisoning

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Journal of Earth Science and Engineering 2013年第11期3卷 764-775页

作者： Lar Uriah Tsuwang Kenneth Gusikit Rhoda mangs ayuba Department of Geology University of Jos Jos P.M.B. 2084 Nigeria

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