Three-dimensional Magnetotelluric Inversion and Magnetic for The Characterization of The Geothermal Field Reservoir Zone “X”

Ridho Hanan Asrowi , Yunus Daud , Abdul Latif Ashadi , Syouma Hikmahtiar , Ahmad Said


Geothermal as an alternative energy source that is renewable and environmentally friendly has an important role in providing domestic energy needs. Exploration is one of the most important stages in the development of geothermal energy because it can minimize the risk at the stage of exploitation and development. Geophysical methods such as geomagnet and magnetotelluric are one of the methods used in exploration. Magnetic method can provide information on the description of rock demagnetization due to the presence of heat source. However, the magnetotelluric method will provide information about rock type resistance on geothermal fields. The existence of heat source using the geomagnetic method is represented by a low anomaly value as an indication of demagnetized rocks. The results of 3D inversion processing show a low value of type resistance in the area and form an updome. The correlation of the two results of processing the data can be seen in the southern part of the "X" geothermal field research area. Based on 3D Inversion modeling it can be seen the depth of the "X" Base of Conductor (BOC) geothermal system ranges from 1000 m to -800 m with resistivity ≤ 10 Ωm which is suspected as volcanic rocks. Geothermal reservoir is at a depth of 1000 m to -2000 m with a moderate resistivity of 40 - 60 Ωm which is suspected as an andesite volcanic rock, with temperature estimates ranging from 218o C to 255o C.


exploration; geothermal; magnetic; magnetotelluric; three-dimensional

Full Text:



ADB, & Bank, W. (2015). Unlocking Indonesia’s Geothermal Potential. By

Baker, H. A., & Myers, J. O. (1980). A topographic correction for VLF-EM profiles based on model studies. Geoexploration, 18(2), 135–144.

Chae, G. T., Yun, S. T., Kim, K., & Mayer, B. (2006). Hydrogeochemistry of sodium-bicarbonate type bedrock groundwater in the Pocheon spa area, South Korea: water-rock interaction and hydrologic mixing. Journal of Hydrology, 321(1–4), 326–343.

Darma, S., Harsoprayitno, S., Setiawan, B., Hadyanto, Sukhyar, R., Soedibjo, A. W., Ganefianto, N., & Stimac, J. (2010). Geothermal Energy Update: Geothermal Energy Development and Utilization in Indonesia. Proceedings of World Geothermal Congress 2010, April, 1–13.

Darmawan, I. G. B., Setijadji, L. D., & Wintolo, D. (2015). Geology and Geothermal System in Rajabasa Volcano South Lampung Regenc , Indonesia (Approach to Field Observations , Water Geochemistry and Magnetic Method ). Proceedings World Geothermal Congress 2015, April, 12.

Daud, Yunus.(2015).Diktat kuliah: STATICSHIFTER-X : Static shift correctionsoftware for MT data. Laboratorium Geofisika, FMIPA, Universitas Indonesia.

Fraser, D. C. (1969). Countouring of VLF-EM data, Geophysics. Geophysics, 34, 958–967.

Giggenbach, W. F. (1991). Chemica Techniques in Geothermal Exploration. In Chemistry Devision (pp. 119–144).

Hardovn, Š., Kúdelč’ik, J., Jahoda, E., & Kúdelč’iková, M. (2019). The magneto-dielectric anisotropy effect in the oil-based ferrofluid. International Journal of Thermophysics, 40(2), 1–11.

Hariyono, E., & Sari, L. (2018). The Characteristics of Volcanic Eruption in Indonesia. Volcanoes - Geological and Geophysical Setting, Theoretical Aspects and Numerical Modeling, Applications to Industry and Their Impact on the Human Health, July.

Harlaux, M., Mercadier, J., Bonzi, W. M. E., Kremer, V., Marignac, C., & Cuney, M. (2017). Geochemical Signature of Magmatic-Hydrothermal Fluids Exsolved from the Beauvoir Rare-Metal Granite (Massif Central, France): Insights from LA-ICPMS Analysis of Primary Fluid Inclusions. Geofluids, 2017.

Hochstein, M. P., & Sudarman, S. (1993). Geothermal resources of Sumatra. Geothermics, 22(3), 181–200.

Ismullah, M. F., Massinai, M. A., & Maria. (2018). Shallow Depth Study Using Gravity & Magnetics Data in Central Java - Yogyakarta. IOP Conf. Series: Journal of Physics: Conf. Series 979, 012046.

Khalil, M. A., & Santos, F. M. (2014). On the depth to anomaly estimation using Karous and Hjelt filter in VLF-EM data. Arabian Journal of Geosciences, 7(10), 4355–4359.

Maryanto, S. (2017). Geo Techno Park potential at Arjuno-Welirang Volcano hosted geothermal area, Batu, East Java, Indonesia (Multi geophysical approach). AIP Conference Proceedings, 1908(2017).

McNeill J. D. and Labson V. F. (1991). Electromagnetic Methods in Applied Geophysics. In Misac N. Nabighian (Ed.), Geological mapping using VLF radio fields. In: Nabighian MN (ed) Electromagnetic methods in applied geophysics II (2nd ed., Vol. 2). Society of Exploration Geophysicists.

Muthamilselvan, A., Rajasekaran, N., & Suresh, R. (2019). Mapping of hard rock aquifer system and artificial recharge zonation through remote sensing and GIS approach in parts of Perambalur District of Tamil Nadu, India. Journal of Groundwater Science and Engineering, 7(3), 264–281.

Nafian, M., Gunawan, B., Permana, N. R., & Umam, R. (2022). Identification of the Subsurface Structure of Geothermal Working Area of the Hamiding Mountain , North Maluku through Land Surface Temperature ( LST ) Data and Forward Modeling with the Gravity Method. J. Nat. Scien. & Math. Res, 8(1), 10–19.

Nakamura, H. (1962). Geological studies of hot springs in Japan. In Rept. Geol. Survey Japan (p. 192).

Oskooi, B., & Abedi, M. (2015). Magnetic and electromagnetic data interpretation for delineating geological contacts in the Tomelilla area, Sweden. Arabian Journal of Geosciences, 8(6), 3971–3984.

Pirttijärvi, M., Zaher, M. A., & Korja, T. (2015). Combined inversion of airborne electromagneticand static magnetic field data. Geophysica, 50(2), 65–87.

Pratiwi, E. S., Sartohadi, J., & Wahyudi. (2019). Geoelectrical Prediction for Sliding Plane Layers of Rotational Landslide at the Volcanic Transitional Landscapes in Indonesia. IOP Conference Series: Earth and Environmental Science, 286(1).

Rao, N. S. (2014). Spatial control of groundwater contamination, using principal component analysis. Journal of Earth System Science, 123(4), 715–728.

Saparun,M., Akbar, R., Marbun, M., Dixit, A.and Saxena, A.(2022).Application of Induced Polarization and Resistivity to the Determination of the Location of Minerals in Extrusive Rock Area, Southern Mountains of Java, Indonesia. International Journal of Hydrological and Environmental for Sustainability, 1(3), 108-119.

Satria, B., Masrurah, Z., & Fajar, S. J. (2021). Magnetic susceptibility and grain size distribution as prospective tools for selective exploration and provenance study of iron sand deposits : A case study from Aceh , Indonesia. Heliyon, 7(March 2020), e08584.

Satriani, A., Loperte, A., Imbrenda, V., & Lapenna, V. (2012). Geoelectrical surveys for characterization of the coastal saltwater intrusion in metapontum forest reserve (Southern Italy). International Journal of Geophysics, 2012.

Sung, K. Y., Park, M. E., Koh, Y. K., & Kim, C. S. (2001). Evolution and origin of the geothermal waters in the Busan Area, Korea: I. Cooling and dilution by groundwater mixing after heated seawater-rock interaction. Econ Environ Geol, 34, 447–460.

Telford, W. ., Geldart, L. P., & Sheriff, R. E. (1990). Applied geophysics. In Nature (Vol. 127, Issue 3212, pp. 783–785).

Telford, W. M., & W.M. Telford, L. P. G. and R. E. S. (2004). Applied Geophysics (Second). Press Syndicate of the Univesity of Cambridge.

Togibasa, O., Bijaksana, S., & Novala, G. C. (2018). Magnetic Properties of Iron Sand from the Tor River. 1–7.

W.M. Telford, L. P. G. and R. E. S. (1991). Applied geophysics (second edition). In Cambridge University Press.

Yuhara, K., & Seno, K. (1969). Geology, geophysics and geochemistry of hot and mineral springs. In Chijinshokan & Co., Ltd., Tokyo, Japan (pp. 155–166).



  • There are currently no refbacks.


Creative Commons License

International Journal of Hydrological and Environmental for Sustainability is licensed under a Creative Commons Attribution-ShareAlike 4.0 International LicenseCopyright © Foundae (Foundation of Advanced Education). ISSN Numbers : p-ISSN 2828-6405 | e-ISSN 2828-5050