JFA (Jurnal Fisika dan Aplikasinya)
Vol 21 No 3 (2025): Okt 2025 Edition

2D Magnetotelluric (MT) Modelling for Geothermal System Interpretation

Eko Minarto (Department of Physics, Faculty of Science and Data Analytics Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111)
Mohammad Istajarul Alim (Department of Physics, Faculty of Science and Data Analytics Institut Teknologi Sepuluh Nopember (ITS), Kampus ITS Sukolilo, Surabaya 60111)
Ahmad Zarkasy (Center for Mineral, Coal, and Geothermal Resources, Geological Agency (PSDMBP), Ministry of Energy and Mineral Resources, Jl. Soekarno Hatta No.444, Pasirluyu, Kec. Regol, Kota Bandung, 40254)



Article Info

Publish Date
13 Jul 2026

Abstract

Geothermal systems are areas beneath the earth’s surface that store circulating heat energy. The heat energy stored in the geothermal system can be utilized by humans as an environmentally friendly alternative energy. Determining the geothermal system area requires geophysical exploration methods that have deep enough penetration and can distinguish soil structures based on the value of resistivity. One method that is effective in determining geothermal systems is the magnetotelluric (MT) method. This method receives electric and magnetic field signals from the induction of subsurface rocks to the electromagnetic wave activity of solar storms and lightning. The signal is then processed to produce a resistivity value. This type of resistance data can then present the structure of the geothermal system, including impermeable rocks, reservoirs and magmatic intrusion zones. This study also collaborated with supporting geological and geochemical data. The results of the magnetotelluric method analysis for the geothermal system of this study area are suspected to have caps rocks with a resistivity of less than 10 m spread near the surface. Reservoirs that have a resistivity of 10-40 m are located at a depth of about 1000 m below the surface based on the interpretation of all data.

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Journal Info

Abbrev

jfa

Publisher

Subject

Physics

Description

JFA (Jurnal Fisika dan Aplikasinya, Abbreviation: J.Fis. dan Apl.) hanya menerbitkan artikel penelitian asli serta mengulas artikel tentang topik seputar bidang fisika (fisika teori, material, optik, instrumentasi, geofisika) dan aplikasinya. Naskah yang dikirimkan ke JFA belum pernah diterbitkan ...