Subsurface Shallow Modelling Based on Resistivity Data in The Hot Springs Area of Libungo Geothermal, Gorontalo, Indonesia

Authors

  • Intan Noviantari Manyoe Geological Engineering Major, Faculty of Mathematics and Natural Science, Universitas Negeri Gorontalo, Bone Bolango Regency, Gorontalo, Indonesia
  • Ronal Hutagalung Geological Engineering Major, Faculty of Mathematics and Natural Science, Universitas Negeri Gorontalo, Bone Bolango Regency, Gorontalo, Indonesia

DOI:

https://doi.org/10.25299/jgeet.2020.5.2.5094

Keywords:

Fracture, Fluids, Thermal, Lithology, Schlumberger

Abstract

Volcano-tectonic events in Libungo can be the cause of the presence of geothermal potential. There is no detailed research on shallow subsurface conditions in Libungo that can show the distribution of subsurface fluids. This research aims to create a shallow subsurface model of the Libungo geothermal area based on resistivity data. Resistivity data collection was carried out in the Libungo hot springs area. The electrode configuration used is the Schlumberger configuration. The variation in resistivity values is calculated using current data, potential difference data and geometry factors. The results of the calculation of the resistivity values variation are plotted versus depth. Variations of resistivity value versus depth are then displayed in the form of a single log, lithology distribution and 3D lithology model. The results showed that the shallow subsurface of the Libungo geothermal area was composed of andesite, volcanic breccia, silty clay and clay. Andesite in the research area has resistivity values ranging from 320 - 349 Ωm, has slightly fracture and is andesite dry. Volcanic breccia has a resistivity value of 177-198 Ωm, has a well to slightly fracture and is a volcanic breccia moist. Silty clay has a resistivity value of 3.25-37.99 Ωm and is a wet to moist silty clay. Clay has resistivity values in the range 1.56-2.78 Ωm and is wet to moist clay. Fluid distribution in the shallow subsurface area occurs in volcanic breccia, silty clay and clay. Shallow subsurface fluids accumulate mostly in the northern part of the Libungo geothermal area.

Downloads

Download data is not yet available.

References

Apandi, T., Bachri, S., 1997. Peta Geologi Lembar Kotamobagu, Sulawesi. Pusat Penelitian dan Pengembangan Geologi, Bandung.

Bachri, S., 2006. Stratigrafi lajur volkano-plutonik daerah gorontalo, sulawesi. J. Geol. dan Sumberd. Miner. XVI, 94–106.

Bowes, D.., 1989. Petrology, Boston. Springer, Boston, MA, Boston.

Direktorat Panas Bumi, 2017. Potensi Panas Bumi Indonesia, Direktorat Panas Bumi Direktorat Jenderal Energi Baru, Terbarukan dan Konservasi Energi Kementerian Energi dan Sumber Daya Mineral.

Chabaane, A., Redhaounia, B., Gabtni, H., 2017. Combined application of vertical electrical sounding and 2D electrical resistivity imaging for geothermal groundwater characterization: Hammam Sayala hot spring case study (NW Tunisia). J. African Earth Sci. 134, 292–298.

Earle, S., 2015. Physical Geology. BCcampus, Victoria B.C.

El-Qady, G., 2006. Exploration of a geothermal reservoir using geoelectrical resistivity inversion: Case study at Hammam Mousa, Sinai, Egypt. J. Geophys. Eng. 3, 114–121.

Hall, R., 2002. Cenozoic geological and plate tectonic evolution of SE Asia and the SW Pacific: Computer-based reconstructions, model and animations. J. Asian Earth Sci. 20, 353–431.

Hall, R., Wilson, M.E.J., 2000. Neogene sutures in eastern Indonesia. J. Asian Earth Sci. 18, 781–808.

Hamilton, W., 1979. Tectonics of the Indonesian Region. Bull. Geol. Soc. Malaysia 6, 3–10.

Hinschberger, F., Malod, J.A., Réhault, J.P., Villeneuve, M., Royer, J.Y., Burhanuddin, S., 2005. Late Cenozoic geodynamic evolution of eastern Indonesia. Tectonophysics 404, 91–118.

Hunt, R.E., 2005. Geotechnical Engineering Investigation Handbook, Second Edition, CRC Press. Taylor & Francis.

Islami, N., 2019. Weak Soil Investigation at The Slope Zone in The Hot Spring Area , Rokan Hulu , Indonesia. J. Geosci. Eng. Environ. Technol. 4, 236–241.

Manyoe, I.N., 2019. Geologi dan Manifestasi Thermal Libungo. UNG Press, Gorontalo.

Manyoe, I.N., Bahutalaa, I., 2017. Kajian Geologi Daerah Panas Bumi Lombongo Kabupaten Bone Bolango Provinsi Gorontalo. J. Geomine 5.

Moore, G.F., Silver, E.A., 1983. Collision Processes in the Northern Molucca Sea. Tecton. Geol. Evol. Southeast Asian Seas Islands. Am. Geophys. Union, Geophys. Monogr., 27, 360–372.

Mori, K., 2003. Hidrologi untuk Pengairan/ Manual on Hydrology, 9th ed. PT. Pradnya Paramita, Jakarta, Indonesia.

Nanlohi, F., Risdianto, D., 2006. Pemboran Sumur Landaian Suhu SWW-1 Lapangan Panas Bumi Suwawa Kabupaten Bonebolango - Gorontalo, in: Pemaparan Hasil Kegiatan Lapangan Dan Non Lapangan Tahun 2006, Pusat Sumber Daya Geologi.

Perelló, J.A., 1994. Geology, porphyry CuAu, and epithermal CuAuAg mineralization of the Tombulilato district, North Sulawesi, Indonesia. J. Geochemical Explor. 50, 221–256.

Santoso, D., 2002. Pengantar Teknik Geofisika. Penerbit ITB, Bandung.

Suleman, B., Angsari, 2005. Geokimia Daerah Panas Bumi SUwwa Kab. Bone Bolango-Gorontalo, in: Pemaparan Hasil Kegiatan Lapangan Subdit Panas Bumi.

Suryadi, A., Putra, D.B.E., Kausarian, H., Prayitno, B., Fahlepi, R., 2018. Groundwater exploration using Vertical Electrical Sounding (VES) Method at Toro Jaya, Langgam, Riau. J. Geosci. Eng. Environ. Technol. 3, 226–230.

Teftae, O.Y.K., Maryanto, S., Santoso, D.R., 2019. 3D Vertical Electrical Sounding ( VES ) At Mount Pandan Hot Springs Area , East Java , Indonesia. Int. J. Innov. Sci. Eng. Technol. 6, 5 p.

Telford W.M, Geldart L.P, S.R.E., 1990. Applied geophysics, Second Edi. ed. Cambridge University Press, Cambridge.

Thanassoulas, C., 1991. Geothermal exploration using electrical methods. Geoexploration 27, 321–350.

Tolodo, D.D., A. Usman, F.C., Manyoe, I.N., Gaib, F.A., Putje, F.H., Ibrahim, Y., 2019. Geologi Daerah Geothermal Pangi Kabupaten Bone Bolango Provinsi Gorontalo. Jambura Geosci. Rev. 1, 22.

Victorine, J.R., 2008. Lithology Symbols. Kansas Geological Survey, Kansas.

Wintolo, D., Arifianto, I., Wibowo, J.P., 2017. Resistivity Survey for Groundwater Explorationin Tiron Village, Kediri, East Jawa, in: Peran Penelitian Ilmu Kebumian Dalam Pembangunan Infrastruktur Di Indonesia.

Zou, C., 2013. Volcanic Reservoirs in Petroleum Exploration. Elsevier Inc.

Downloads

Published

2020-06-26

Issue

Vol. 5 No. 2 (2020): JGEET Vol 05 No 02 : June (2020)

Section

Research Articles

License

Copyright @2019. This is an open-access article distributed under the terms of the Creative Commons Attribution-ShareAlike 4.0 International License which permits unrestricted use, distribution, and reproduction in any medium. Copyrights of all materials published in JGEET are freely available without charge to users or / institution. Users are allowed to read, download, copy, distribute, search, or link to full-text articles in this journal without asking by giving appropriate credit, provide a link to the license, and indicate if changes were made. All of the remix, transform, or build upon the material must distribute the contributions under the same license as the original.