Combined Application of Hydrogeological and Geoelectrical Study in Groundwater Exploration in Karst-Granite Areas, Jiangxi Province
Drinking water shortage is a major concern in villages across southern Jiangxi, and this has impacted economic and social development. In order to address this challenge, groundwater prospecting was carried out in the villages under the support of Drinking Water Safety Project of China Geological Su...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/5/865 |
| _version_ | 1797614198515040256 |
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| author | Jacob Lubang Haifei Liu Rujun Chen |
| author_facet | Jacob Lubang Haifei Liu Rujun Chen |
| author_sort | Jacob Lubang |
| collection | DOAJ |
| description | Drinking water shortage is a major concern in villages across southern Jiangxi, and this has impacted economic and social development. In order to address this challenge, groundwater prospecting was carried out in the villages under the support of Drinking Water Safety Project of China Geological Survey. In this study, we present two example sites in Ningdu County selected to demonstrate the combined hydrogeological survey, and the direct current electrical resistivity method was utilized for the present study for groundwater exploration in karst-granite distribution areas. First, a hydrogeological study was effectively used to delineate shallow severely weathered structural fissures as prospective target water-bearing beds. Then, a direct current electrical resistivity survey was used to confirm the distribution, thickness scale, and water-bearing features. The structural fractured zone whose distribution and trend were first established through hydrogeological surveys and whose development characteristics and water-richness were investigated by the direct current electrical resistivity method is the target layer for water exploration in the karst-granite rock areas. The water-bearing fracture zone shows a groove or strip-shape low resistivity anomaly and can be identified in its aquifer position according to its IP half decay time (Th), apparent polarizability (ηs), and apparent resistivity (ρs). The findings demonstrate that the above methods were successful in locating water potential areas, providing information for comparison and accurate borehole positioning. The results of the subsequent drilling and pumping tests supported the interpretation of the geophysical exploration data, and the water output from both boreholes met the objectives of this study. This groundwater search might serve as a guide for future exploration projects in similar areas. |
| first_indexed | 2024-03-11T07:06:24Z |
| format | Article |
| id | doaj.art-3ef2b1b976b94b16ae1c7144d2a576a0 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T07:06:24Z |
| publishDate | 2023-02-01 |
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| record_format | Article |
| series | Water |
| spelling | doaj.art-3ef2b1b976b94b16ae1c7144d2a576a02023-11-17T08:54:05ZengMDPI AGWater2073-44412023-02-0115586510.3390/w15050865Combined Application of Hydrogeological and Geoelectrical Study in Groundwater Exploration in Karst-Granite Areas, Jiangxi ProvinceJacob Lubang0Haifei Liu1Rujun Chen2Hunan Key Laboratory of Nonferrous Resources and Geological Hazards Exploration, Key Laboratory of Metallogenic Prediction of Nonferrous Metals, Ministry of Education, Innovation and Entrepreneurship Education Center for AIoT, Geology and Geophysics, School of Geosciences and Info-Physics, Central South University, Changsha 410083, ChinaHunan Key Laboratory of Nonferrous Resources and Geological Hazards Exploration, Key Laboratory of Metallogenic Prediction of Nonferrous Metals, Ministry of Education, Innovation and Entrepreneurship Education Center for AIoT, Geology and Geophysics, School of Geosciences and Info-Physics, Central South University, Changsha 410083, ChinaHunan Key Laboratory of Nonferrous Resources and Geological Hazards Exploration, Key Laboratory of Metallogenic Prediction of Nonferrous Metals, Ministry of Education, Innovation and Entrepreneurship Education Center for AIoT, Geology and Geophysics, School of Geosciences and Info-Physics, Central South University, Changsha 410083, ChinaDrinking water shortage is a major concern in villages across southern Jiangxi, and this has impacted economic and social development. In order to address this challenge, groundwater prospecting was carried out in the villages under the support of Drinking Water Safety Project of China Geological Survey. In this study, we present two example sites in Ningdu County selected to demonstrate the combined hydrogeological survey, and the direct current electrical resistivity method was utilized for the present study for groundwater exploration in karst-granite distribution areas. First, a hydrogeological study was effectively used to delineate shallow severely weathered structural fissures as prospective target water-bearing beds. Then, a direct current electrical resistivity survey was used to confirm the distribution, thickness scale, and water-bearing features. The structural fractured zone whose distribution and trend were first established through hydrogeological surveys and whose development characteristics and water-richness were investigated by the direct current electrical resistivity method is the target layer for water exploration in the karst-granite rock areas. The water-bearing fracture zone shows a groove or strip-shape low resistivity anomaly and can be identified in its aquifer position according to its IP half decay time (Th), apparent polarizability (ηs), and apparent resistivity (ρs). The findings demonstrate that the above methods were successful in locating water potential areas, providing information for comparison and accurate borehole positioning. The results of the subsequent drilling and pumping tests supported the interpretation of the geophysical exploration data, and the water output from both boreholes met the objectives of this study. This groundwater search might serve as a guide for future exploration projects in similar areas.https://www.mdpi.com/2073-4441/15/5/865southern Jiangxi Provincehydrogeological surveydirect current prospectinggroundwater explorationfault structure |
| spellingShingle | Jacob Lubang Haifei Liu Rujun Chen Combined Application of Hydrogeological and Geoelectrical Study in Groundwater Exploration in Karst-Granite Areas, Jiangxi Province Water southern Jiangxi Province hydrogeological survey direct current prospecting groundwater exploration fault structure |
| title | Combined Application of Hydrogeological and Geoelectrical Study in Groundwater Exploration in Karst-Granite Areas, Jiangxi Province |
| title_full | Combined Application of Hydrogeological and Geoelectrical Study in Groundwater Exploration in Karst-Granite Areas, Jiangxi Province |
| title_fullStr | Combined Application of Hydrogeological and Geoelectrical Study in Groundwater Exploration in Karst-Granite Areas, Jiangxi Province |
| title_full_unstemmed | Combined Application of Hydrogeological and Geoelectrical Study in Groundwater Exploration in Karst-Granite Areas, Jiangxi Province |
| title_short | Combined Application of Hydrogeological and Geoelectrical Study in Groundwater Exploration in Karst-Granite Areas, Jiangxi Province |
| title_sort | combined application of hydrogeological and geoelectrical study in groundwater exploration in karst granite areas jiangxi province |
| topic | southern Jiangxi Province hydrogeological survey direct current prospecting groundwater exploration fault structure |
| url | https://www.mdpi.com/2073-4441/15/5/865 |
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