Magnetic method used in geothermal reservoirs identification in Kasinan-Songgoriti, East Java, Indonesia

Magnetic method used in geothermal reservoirs identification in Kasinan-Songgoriti, East Java, Indonesia

Laily W. Mawarni Sukir Maryanto  Ahmad Nadhir 

Graduate Program of Physics, University of Brawijaya, Malang 65145, Indonesia

Brawijaya Volcanology and Geothermal Research Center, University of Brawijaya, Malang 65145, Indonesia

Instrumentation Laboratory, University of Brawijaya, Malang 65145, Indonesia

Corresponding Author Email:
7 October 2018
3 December 2018
31 December 2018
| Citation



The magnetic method had been applied to identify the geothermal reservoirs in Kasinan-Songgoriti, East Java, Indonesia. The magnetic survey was performed using PPM G-856 and measured on 75 magnetic stations with spacing between each station is 200 meters. The magnetic stations cover of two main hot spring in Kasinan and Songgoriti. The magnetic data were processed by 2D and 3D data modeling. The result of the research showed the range of total magnetic intensity TMI from 31.0 nT to 1207.5 nT. The residual anomaly contour map revealed that geothermal reservoir was suspected tend to lie in an area with the low magnetic intensity value around the hot spring and identified as the volcanic breccia. Based on the integrated of 3D inversion and 2D forward modeling data analysis can be obtained the distribution of reservoirs location, depth and the thickness of the geothermal reservoir, the suspected of the presence of secondary structure, the fluid flow pattern from reservoir to the manifestation on the surface, and also Kasinan-Songgoriti geothermal system continuity retrieval.


magnetic method, reservoir, geothermal, Kasinan, Songgoriti

1. Introduction
2. Regional Geology of the Study Area
3. Magnetic Method
4. Results and Discussion
5. Conclusion

[1] Maryanto S, Dewi CN, Syahra V, Rachmansyah A, Foster JH, Nadhir A, Santoso DR. (2017). Magnetotelluric-geochemistry investigations of Blawan Geothermal field, East Java, Indonesia. Geosciences 7(2): 41.

[2] Ahmadi MH, Ramezanizadeh M, Nazari MA, Lorenzini G, Kumar R. (2018). Applications of nanofluids in geothermal: A review. Mathematical Modelling of Engineering Problems 5(4): 281-285. 

[3] Maryanto S. (2018). Microseismicity of Blawan hydrothermal complex, Bondowoso, East Java, Indonesia. J. Phys.: Conf. Ser. 997 012019.

[4] Syukri M, Nordiana MM, Saad R, Marwan, Kamaruddin NA. (2014). Magnetic method used in geothermal exploration in Ie-Seu ‘Um, Aceh Besar (Indonesia). Electron. J. Geotech. Eng. 19: 2149–2157.  

[5] Santosa & Atmawinata. (1992). Geological Map. 

[6] El All EA, Khalil A, Rabeh T, Osman S. (2015). Geophysical contribution to evaluate the subsurface structural setting using magnetic and geothermal data in El-Bahariya Oasis, Western Desert, Egypt. NRIAG J. Astron. Geophys 4(2): 236-248.

[7] Blakely RJ. (1996). Potential theory in gravity and   magnetic application. Cambridge University Press. Cambridge. United Kingdom.

[8] Juniarti E. (2017). Identification of Reservoar Geothermal at Kawah Wurung-Ijen complex, Bondowoso, east java using magnetic and remote sensing method. Thesis, Brawijaya University, Malang.

[8] Al-Garni MA. (2010). Magnetic survey for delineating subsurface structures and estimating magnetic sources depth. Wadi Fatima, KSA. J. King Saud Univ. - Sci. 22(2): 87-96.

[9] Vincent O. (2014). Ground magnetic survey in Otukpo area benue state Nigeria. Journal of Natural Sciences Research 4(6): 76–82.

[10] Maryanto S. (2018). Preliminary investigation of volcano hosted geothermal area at Kasinan-Songgoriti-Cangar, Batu city, based on gravity-seismic methods. AIP Conference Proceedings 2021, 050010.

[11] Nuha DYU, Avisena N. (2012). Modeling of the subsurface structure in songgoriti hot spring, Batu region based on the geomagnetic data. Neutrino 4(2): 178-187.