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Application of Induced Polarization and Resistivity to the Determination of the Location of Minerals in Extrusive Rock Area, Southern Mountains of Java, Indonesia Moh Saparun; Rajabal Akbar; Mahmuddin Marbun; Aparna Dixit; Arti Saxena
International Journal of Hydrological and Environmental for Sustainability Vol. 1 No. 3 (2022): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v1i3.137

Abstract

Mountainous areas often have a lot of natural wealth. The existence of geological appearances in the form of outcrops which are products of intrusion and alteration, indicates that the Pacitan area is a mineralized zone. In this study, geophysical measurements were carried out using the Induced Polarization (IP) method in the area where mineralization was suspected. The polarization induction method is expected to prove the presence of a mineralized zone in the Pacitan area. From the research results, line 1, line 4, line 5, line 6 and line 7 are areas with high chargeability values. So it can be proven that the area with high resistivity and high chargeability is an area with mineralization. Judging from the geological conditions on the surface, there are also outcrops which show that there is an intrusion and the result of alteration. So it can be concluded that the area has a fairly high mineralization. In measuring the correlation between magnetic anomalies and IP, the results are very supportive of each other that the area is a mineralized area, if we look at the resistivity, and chargebility.
Identification of Underground River Flow Using VLF (Very Low Frequency) and Geoelectricity at Karstic Area Mahmuddin Marbun; Sismanto Sismanto; Zuhrahmi DE; Imran Tarique; Punhoon Khan Korai
International Journal of Hydrological and Environmental for Sustainability Vol. 2 No. 3 (2023): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v2i3.332

Abstract

Mapping underground river karst areas in the karst mountains Cianjur, West Java, has been done using electromagnetic methods and Geoelectricity Dipole-dipole. Karst constituent formation region of West Java area is limestone, clay stone, limestone fractured, hard and dense limestone, and limestone containing no water (rigid). The aim of this research is to search for the existence of underground rivers using electromagnetic and geoelectric wave surveys. VLF method consists of 13 line with a length of 750 m and a 10 m spacing. Based on the results of data processing VLF method is known that the equivalent current density (ECD) demonstrated high conductive rocks. While Geoelectricity method consists of 10 line, the arrangement is a parallel between the distance of the line with a space of 20 m andlength between 300 m.VLF data interpretation results indicate anomalous equivalent current density (ECD) with high scores range from 180-300% indicated fractured limestones are occupied by water, while the resistivity anomaly from 0.45 to 7.40 Ω.m indicated as weathered limestone layers accumulated dengn clay stone, resistivity values 186-701 Ω.m, fractured limestones indicated that fills with water. With sizes ranging 5-15 m cavity, each line with nearly the same distance at a depth of approximately 15-105 m, there is a large cavity-cavity interconnected.
Identification of Groundwater Aquifers Using Geoelectric Methods with Schlumberger Configuration in Peatland Areas, West Kalimantan, Indonesia Rasmi Rasmi; Yuris Sutanto; Radhitya Perdhana; Muliadi Muliadi; Muhardi Muhardi; Mahmuddin Marbun; Amir Machmud; Elok Surya Pratiwi
International Journal of Hydrological and Environmental for Sustainability Vol. 3 No. 1 (2024): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v3i1.388

Abstract

The geoelectric-resistivity method with Schlumberger configuration is commonly used for groundwater exploration. This method helps identify changes in the resistivity of rock layers beneath the Earth's surface by flowing direct current (DC). In this research, geoelectric-resistivity was used to search for the existence of groundwater aquifers in water crisis areas with peat soil structures. In addition, this research aims to determine the depth of the aquifer layer based on resistivity values below the surface and  to identify variations in resistivity values below the surface. The method used in this research was the Schlumberger configuration resistivity geoelectric method with 4 measurement points, each with  a stretch length of 500 m . The research results show that the subsurface resistivity value in the Parit Haji Muksin II area is 2.69 Ohm m to 264 Ohm m. The unconfined aquifer at the research location was found at point 1 and point 2 at a depth of 3.94 m to 35.5 m, while the confined aquifer was found at points 3 and 4 at a depth of 13.6 m to 61.8 m. This study indicates the presence of potential groundwater resources in tropical peatlands, highlighting the necessity for further comprehensive research to ensure their sustainable utilization in the future.