Site Investigation of Groundwater Potential at Jasin Using Electrical Resistivity Imaging (original) (raw)
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Bulletin of the Geological Society of Malaysia, 2012
Electrical resistivity imaging surveys have been conducted in order to locate, delineate subsurface water resource and estimate its reserve. The resistivity imaging surveys carried out basically measures and maps the resistivity of subsurface materials. Electrical imaging is an appropriate survey technique for areas with complex geology where the use of resistivity sounding and other techniques are unsuitable to provide detailed subsurface information. The purpose of electrical surveys is to determine the subsurface resistivity distribution by making measurements on the ground surface. The resistivity imaging measurement employing Wenner electrode configuration was carried out using an ABEM SAS 1000 terrameter and electrode selector system ES464. In this survey, electrodes were arranged in a straight line with constant spacing and connected to a multicore cable. A 2-D geoelectrical resistivity technique was used. The field survey was conducted along four profiles which provide a continuous coverage of the resistivity imaging below surface. Colourmodulated sections of resistivity versus depth were ploted for all lines, giving an approximate image of the subsurface structure. The surface soil material is mainly clayey silt. The results showed that the layers associated with the low resistivities (Ω.m) are located at depth ranging from 2 to 28 m. This low resistivity values are associated with zone of water saturated weathered layer and fractures. The results showed that the thickness of residual soil is about 0.5-2.55 m. Borehole data indicated that the depth of bedrock is about 10m and the groundwater level is ranging from 8.73 m to 8.54 m.
Groundwater Exploration using 2D Electrical Resistivity Imaging (ERI) at Kulim, Kedah, Malaysia
Proceedings of the Second International Conference on Science, Engineering and Technology, 2019
Water demand in the study area has been increasing by time but surface water is not sufficient to fulfil the demands. 2D Electrical Resistivity Imaging (ERI) survey was conducted in order to looking for groundwater potential as freshwater alternative resources at Kulim, Kedah, Malaysia. The data acquisition was carried out using 5 meters multi-electrodes spacing with pole-dipole configuration array. The geophysical survey involved both resistivity and chargeability at the same time. The result of 2D Electrical Resistivity Imaging indicated that the groundwater potential area has low resistivity value with range 10-100 Ωm. Groundwater potential zone divided into 2 characteristics which is shallow groundwater zone (>75m in depth) and deep groundwater zone (>100m in depth). The groundwater potential zone covered by high to very high resistivity value. Those high resistivity value 200-1000 Ωm interpreted as dry top soil at near surface while at deep zone is interpreted as fresh bedrock. Chargeability value of groundwater potential area ranging from 0 up to 8 msec. All interpretation later confirmed by drilling data. 2 GEOLOGICAL SETTING OF STUDY AREA Geology of Study area is consist of granite and surround by metamorphic rock (slate, phyllite and schist) and sedimentary rock (sandstone, siltstone and shale) (Figure 3). Granite of study area known as Kulim granite that consist of two main types, namely
2D Resistivity Method to Determine the Groundwater Zone for Agricultural use in Perlis, Malaysia
EINSTEIN e-JOURNAL
The efficiency of the use of water in Malaysia is very low ( 40 to 50 percent) and in order to take the advantage from during floody the irrigation system designed as open system. In this study, groundwater is suggested to supplement as an alternative source of water for irrigation. In Malaysia only less than 2% of the present water used is developed from groundwater. In order to determine the existence of usable groundwater, 2D resistivity imaging is used. This method is the most commonly method that been used for groundwater exploration. The groundwater found is used for irrigation purposes. The arrays used in this study are Wenner Schlumberger and Pole dipole. The results of the study showed that there is an aquifer. The water filled cavity occurred in an isolated manner at an approximate depth of 7.7 m. It was further observed that the cavity did not allow the harnessing of this resource to the fullest capacity. At a depth of 5 m there is bedrock and from a depth of 27 to 30 m ...
The integration of geological and multi-electrode resistivity surveys has been carried out in Kampung Rahmat village and its vicinity, in Jeli district, Kelantan, Malaysia as part of the groundwater resources exploration for rural water supply. A geological survey in the study area has shown that the area consists of some topographic units: mountainous area, hilly area, and low-lying to undulating area. The study area is lithologically composed of granitic rocks (megacrystic biotite granite porphyry) overlain by Quaternary alluvial deposits (with weathered granite). For the multi-electrode resistivity survey, the Schlumberger array with a maximum electrode spread of 200 m was conducted by employing three resistivity survey lines, where data were collected by using the ABEM Terrameter SAS 4000 and ABEM LUND ES464 electrode selector system, and processed by using RES2DINV software. The images were presented in the form of two-dimensional (2D) resistivity profiles providing a clear view of the distribution of granitic rock basement and alluvial deposits (with the weathered granite) as well as potential groundwater zones. The results show that the study area has potential groundwater resources existing in the alluvium which become the unconfined aquifers. The combination between these two methods is reliable and successful in identifying potentially favorable zones for obtaining groundwater in the study area.
Pertanika Journal of Science and Technology, 2021
2-D electrical resistivity has been a proper investigation survey for determination of subsurface geophysical in describing the complex features geology profile. In this study, an electrical resistivity survey was conducted at paddy cultivation area located in Melor, Kelantan, Malaysia. Since the end plot of paddy field experiences water scarcity especially during dry season, there is a need to find other alternative water source. The study was conducted on 1st and 2nd February 2020 to identify zone area of groundwater for Melor, Kelantan. Four resistivity lines using Induced Polarization (IP) and 2-D Electrical Resistivity Imaging Technique were conducted using a set of ABEM Terrameter SAS4000. Short resistivity survey was applied to gained detail of subsurface formation near the ground, while the longer resistivity survey was applied to obtain deeper subsurface delineation. Measured data obtained was analyzed using RES2DINV software and result of contrast resistivity values was us...
Groundwater investigations using electrical resistivity survey in Rechna Doab, Punjab, Pakistan
2013
Ground water quality is deteriorating in certain areas of the Punjab owing to excessive pumping by tubewells and many other factors. Electrical Resistivity Survey (ERS) is a technique which is applied to investigate the potential of fresh ground water in an aquifer. Electrical Resistivity Survey was carried out at nine locations upto a depth of 250-300 m on the left side of Jhang Branch Canal (JBC) in the vicinity of Faisalabad city in Punjab Province of Pakistan. The equipment used for ERS was ABEM, Terrameter SAS 1000 IP, SP, and Resistivity System. The resistivity data collected has been interpreted by computer-aided techniques using computer software. The Quality of ground water from 10 to 60 meter depth is marginal to saline which improves afterwards gradually upto the depth of 150 m and afterwards deteriorates at locations R-1 and R-2. At site R-3 it contains top surface material upto 12 m and afterwards there is marginal to saline water. At sites R-4, R-6, and R-9 resistivity...
JURNAL GEOCELEBES
Groundwater as a source of clean water which is very important in fulfilling the needs of humans is considered suitable as the main alternative. Layers investigation of soil that is permeable to water (aquifer) in Mattoangin Village, Bantimurung District, Maros Regency aims to obtain 2D model map of the distribution of groundwater below the surface. The presence of groundwater stored in aquifers can be explored by geophysical methods. The Wenner-Schlumberger array has a good resolution so it is deemed suitable for aquifers. The measurement data was processed using Res2DInv software. The exploration resulted in a 2D cross-sectional model of the subsurface resistivity. Based on the results of measurements and data processing, the groundwater aquifer which has the potential to have resistivity values of 9.73-32.7 Ωm on track 1, resistivity values of 6.24-32 Ωm is on track 2 with a depth of 6 - 10 m and resistivity values of 5.68-33, 6 Ωm on track 3 with a depth of 6 - 8 Ωm.
Geological mapping and multi-electrode resistivity survey were carried out in Ayer Lanas village and its vicinity, in Jeli district, Kelantan, Malaysia as part of the groundwater resources exploration for rural water supply. Geological mapping in the study area has shown that the area is composed of granitic rocks (megacrysticbiotite granite porphyry) overlain by Quaternary alluvial deposits and the weathered granite. The Schlumberger array with a maximum electrode spread of 200 m was conducted by employing three resistivity survey lines, where data were collected by using ABEM Terrameter SAS 4000 and ABEM LUND ES464 electrode selector system, and processed by using RES2DINV software. The images were presented in the form of two-dimensional (2D) resistivity profiles providing a clear view of the distribution of granitic rock basement, alluvial deposits and the weathered granite as well as potential groundwater zones. The results show that the study area has potential groundwater resources existing in the alluvium and the weathered granite, which become the unconfined aquifers. This combination of geological mapping and multi-electrode resistivity survey is a reliable and successful approach to identifying potentially favorable zones for obtaining groundwater in the study area.
Resistivity Survey for Groundwater Explorationin Tironvillage, Kediri, East Jawa
2017
Resistivity method is commonly used in groundwater survey. This article explains about resistivity survey for ground water exploration in Tiron Village, Kediri, East-Jawa Province. The surveying area cover about 200 hectar and it is used as a holticulture industry, however this location situated in flank of mountain hill which there are many volcanic rock deposits and thiny in soil thickness. This survey was done by measuring resistivity method in 15 locations and an advantage for this that in this surveying area there is one drilling well with 167 m in depth. From data analysis dan correlation with well log data we can make subsurface interpretation and to propose the new location for next groundwater drilling activities. Keyword: resistivity, groundwater, volcanic deposits, Kediri