Identification of subsurface layer with Wenner-Schlumberger arrays configuration geoelectrical method

Jamaluddin, -; Umar, Emi Prasetyawati

doi:10.1088/1755-1315/118/1/012006

Cited by 16 publications

(11 citation statements)

References 2 publications

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“…In this inversion method, the subsurface along the measured profile is divided into a number of rectangular blocks equal in number to the measured apparent resistivity points. During the inversion procedures, the apparent resistivities of the sub surface blocks are estimated and the difference between the observed and calculated data is minimized [3]. 2D resistivity profiles with 320 m length of each line, resulting 209 datum points.…”

Section: Resultsmentioning

confidence: 99%

“…This ERT method has been widely used for the detection of subsurface geological structures such as for the detection of buried fault structures in Shandong China by using a combination of dipoledipole and Wenner electrode configurations [1], then this ERT method with Wenner-Schlumberger configuration has also been carried out for the identification of subsurface layer [3].…”

Section: Introductionmentioning

confidence: 99%

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The Application of Electrical Resistivity Tomography using Wenner-Schlumberger Arrays Configuration to Identify the Geological Structure in Kancah Warm Spring, West Java Indonesia

Tongkeles

Suryantini

Pratama

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Kancah warm spring is located in the southern part of Tangkuban Perahu Volcano, in West Java Indonesia. This warm spring has a temperature 470 C and a pH of 3 and it is used as a source of water for nearby tourist attractions. This warm spring has a large discharge, with the source thought to be from subsurface water associated with Tangkuban Perahu Volcanic complex. Knowing the source and geological control of this warm spring is one way to further identify the Tangkuban Perahu geothermal system, especially its permeability. For that reason, this research aims to using Electrical Resistivity Tomography (ERT) method to identify the geological structure that controls the appearance of geothermal manifestation using the resistivity method with Wenner – Schlumberger arrays configuration. The study starts with lineament study using DEM to identify the structure in surface and then determine the geometry of subsurface geological structures are using the electrical resistivity tomography (ERT) method using the Wenner - Schlumberger configuration. with a length 320 meters of each line and the electrode spacing is 10 m. The results of the interpretation of satellite images show that there is a lineament which is interpreted as a fault structure with a NE-SW direction that is right at the location of the discharge of the warm spring. There are 3 - 4 faults identified in each profile, some of the faults identified beneath the Kancah spring and may controlled the warm spring. These faults are a permeable that flows hydrothermal fluids from the subsurface to the surface in the form of warm spring..The lithology beneath of Kancah warm spring are dominated by breccia pyroclastics, clays, and a small amount of andesite igneous rocks.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Application of Electrical Resistivity Tomography using Wenner-Schlumberger Arrays Configuration to Identify the Geological Structure in Kancah Warm Spring, West Java Indonesia

Tongkeles

Suryantini

Pratama

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Furthermore, data acquisition is carried out, with data acquisition covering the implementation of data collection activities in the field, in this case using a geoelectric tool to obtain the value of the current injection (I) and the value of the voltage (V), the current and voltage injection value data are then processed to obtain the resistivity value which is then processed. reprocessed using RES2DINV software to get a 2D cross-sectional model (Jamaluddin & Umar, 2018). This software works based on the inversion technique related to the last square method (Pratiwi et al, 2019).…”

Section: Data Collection Techniquesmentioning

confidence: 99%

Identification of Seawater Intrusion Using Geoelectrical Method with Wenner-Schulumberger Configuration: A Case Study in Southern Tolonuo Island, North Halmahera Regency, Indonesia

Kalilu

Sadjab

Yusniar

et al. 2022

IJHES

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Research on seawater intrusion has been carried out on the southern Tolonuo island, Tobelo sub-district, North Halmahera Regency, Indonesia using the Wenner-Schlumberger configuration resistivity geoelectric method supported by the Naniura NRD 300 HF tool, this study aims to determine the distribution pattern of seawater intrusion and to determine the resistivity value of each subsurface rock layer in the study area. The measurement results are processed using the RES2DINV software to obtain a 2-D pseudo resistivity section that describes the distribution value of the layer that the soil surface is shown in color images. The measurement results on line 1 show that there is seawater intrusion with a resistivity value range of 0.338 m - 2.44 m which is at 4 – 20 meters with a certain pattern, line 2 also has sea water intrusion at a depth of 5 m – 20 m with a resistivity value of 1.31 Ωm – 6.50 Ωm. On line 3, it is clear that there is a good correlation between the intersection of line 1 and line 2, where there is a low resistivity contrast on the line 1 with a stretch of 35 m – 50 m at a depth of 10 m – 20 m and the line 2 with a span of 80 m - 100 m at a depth of 10 m - 20 m. The distribution pattern of seawater intrusion from the south to the north of Tolonou Village with a wide range of up to 200 meters from residential areas from the shoreline. The research area has layers of clay rock with a resistivity value between 30 – 80 Ωm, and breccia rocks around it with a resistivity value of 100 – 200 Ωm. On the other hand, between clay and breccia there is impermeable rock which is thought to be conglomerate rock with a resistivity value of 200-500 Ωm, besides that in the study area there is also a layer suspected to be a groundwater aquifer layer with a resistivity value (ρ) 10 m.

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“…Hasil studi yang dilakukan UGM menunjukkan bahwa contoh batuan di Romang adalah dasit yaitu batuan beku vulkanik intermediate yang memiliki kandungan SiO 2 52%-66% atau disebut juga mineral jenis c (Maaturwey & Aprilita, 2012). Identifikasi jenis unsur yang terkandung dalam sampel mineral secara menyeluruh akan lebih tepat bila dilakukan menggunakan instrument X-Ray Fluorescence (XRF) dan X-Ray Diffraction (XRD) (Jamaluddin & Umar, 2018). Analisis XRF digunakan untuk mengetahui komposisi unsur dalam mineral, dan XRD dapat digunakan untuk mengidentifikasi jenis mineral (Seran & Edi, 2021).…”

Section: Pengujian Tanahunclassified

Kandungan Logam Berat dalam Sungai dan Tanah di Beberapa Wilayah Desa Hila, Kepulauan Romang – Kabupaten Maluku Barat Daya

Hindratmo¹,

Masitoh²,

Lestari³

et al. 2021

Ecolab

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Kecamatan Kepulauan Romang terletak di Kabupaten Maluku Barat Daya dengan luas wilayah 280,94 km2 dan terdiri dari tiga wilayah yaitu Desa Jerusu, Desa Hila, dan Desa Solath. Topografi Kepulauan Romang terdiri dari pegunungan yang dikelilingi lautan, dengan sumber daya alam yang melimpah dari sektor kehutanan, pertanian, kelautan, dan potensi penambangan mineral. Area Desa Hila memiliki sumber daya alam mineral yang berharga, sehingga terjadi potensi eksplorasi dan pertambangan. Kegiatan ini bertujuan untuk mengetahui kandungan logam berat pada air dan tanah di beberapa wilayah pertambangan Desa Hila, Kepulauan Romang. Pengambilan contoh uji dilakukan pada 6-12 April 2017 menggunakan metode grab sampling dan komposit di 2 (dua) titik pengambilan air Sungai Hilmat dan Drill Camp, serta 9 (sembilan) titik contoh uji tanah. Hasil analisis air sungai menunjukkan bahwa parameter logam berat (Hg, Fe, Mn, Cu, As, Cd, Co, Ni, Au, dan Zn) berada di bawah baku mutu sesuai Peraturan Pemerintah PP No 82/2001 tentang pengelolaan kualitas air dan pengendalian pencemaran air pada lampiran untuk Kelas 1. Baku mutu masih mengacu pada peraturan yang lama karena kegiatan dilakukan sebelum dikeluarkannya PP No 22/2021. Logam dominan yang ditemukan dalam matriks tanah adalah Fe dengan konsentrasi berkisar antara 600-63900 mg/Kg. Fe merupakan mineral alamiah yang banyak terkandung di dalam tanah, kemudian disusul logam Mn, As, dan Cu dengan kisaran konsentrasi masing-masing yaitu 15-9491 mg/Kg, 10-1998 mg/Kg, dan 2,9-2978 mg/Kg.

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Identification of subsurface layer with Wenner-Schlumberger arrays configuration geoelectrical method

Cited by 16 publications

References 2 publications

The Application of Electrical Resistivity Tomography using Wenner-Schlumberger Arrays Configuration to Identify the Geological Structure in Kancah Warm Spring, West Java Indonesia

The Application of Electrical Resistivity Tomography using Wenner-Schlumberger Arrays Configuration to Identify the Geological Structure in Kancah Warm Spring, West Java Indonesia

Identification of Seawater Intrusion Using Geoelectrical Method with Wenner-Schulumberger Configuration: A Case Study in Southern Tolonuo Island, North Halmahera Regency, Indonesia

Kandungan Logam Berat dalam Sungai dan Tanah di Beberapa Wilayah Desa Hila, Kepulauan Romang – Kabupaten Maluku Barat Daya

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