Identifikasi Batuan Granit Daerah Prospek Panas Bumi Nyelanding menggunakan Metode Magnetik

  • Ahmat Munawir Siregar Universitas Jambi
  • Ira Kusuma Dewi Universitas Jambi
  • Ngatijo Ngatijo Universitas Jambi

Abstract

This study aimed to identify granite rocks around the Nyelanding geothermal area, especially in the geothermal manifestations. This research used the magnetic method to analyze the subsurface structure of the geothermal area. Correction of magnetic data was performed in Microsoft excel 2010 software and two-dimensional modeling was performed using Oasis Montaj 8.4. The results showed that there are three layers of rock under Nyelanding hot springs, namely granite with a susceptibility of 0.009 - 0.05 SI to a depth of 500 meters and a layer of sandstone - clay, as well as layers of clay, gravel and silt with a susceptibility of 0.00001 - 0, 00005 SI. In conclusion, the local geology of the Nyelanding hot spring area is dominated by the presence of granite to a depth of 500 meters. The results of forward modeling on layers A-A' and C-C' show the subsurface structure of Nyelanding hot springs in the form of a granite rock basin which is estimated to be able to accumulate geothermal energy.

Key words: Nonvolcanic Geothermal, Magnetic Method, Granite Susceptibility, Forward Modeling

References

Afandi, A., Maryanto, S., & Rachmansyah, A. (2013). Identifikasi Reservoar Daerah Panasbumi dengan Metode Geomagnetik Daerah Blawan Kecamatan Sempol Kabupaten Bondowoso. J. Neutrino, 6(1), 1-10. https://doi.org/10.18860/neu.v0i0.2441

Chappell, B.W., & White, A. J. R. (2001) Two Contrasting Granite Types: 25 Years later. Australian Journal of Earth Sciences, 48(4), 489-499. http://dx.doi.org/10.1046/j.1440-0952.2001.00882.x

Cobbing, E. J., Pitfield, P. E. J., Darbyshire, D. P. F., & Malick, D. I. J. (1992). The Granites of the South-East Asian Tin Belt. London: HMSO


Fahmi, L. C. (2017). Pemetaan Struktur Bawah Permukaan di Sekitar Manifestasi Panas Bumi Krakal dengan menggunakan Metode Geomagnetic. Skripsi. Universitas Negeri Semarang. Semarang

Franto, F. (2015). Citra Shuttle Radar Topography Mission (SRTM) (Interpretation Structure of Regional Geology on Bangka Island with Shuttle Radar Topography Mission (SRTM)). J. Promine, 3(1), 10-20. https://doi.org/10.33019/promine.v3i1.85

Hadisurya, D., & Mulyatno, B. S. (2010). Identifikasi Magma Chamber berdasarkan Analisis Data Magnetik Total di Gunung Ili Lewotolo Kabupaten Lembata, Nusa Tenggara Timur berdasarkan
Data Survei Tahun 2010. Skripsi. Universitas Lampung. Lampung

Indratmoko, P., Nurwidyanto, M. I., & Yulianto, T. (2009). Interpretasi Bawah Permukaan Daerah Manifestasi Panas Bumi Parang Tritis Kabupaten Bantul DIY dengan Metode Magnetik. Berkala Fisika, 12(4), 153 – 160. https://ejournal.undip.ac.id/index.php/berkala_fisika/article/view/2924

Jahidin, J., Ngkoimani, L. O., & Bijaksana, S. (2011). Analisis Suseptibilitas Magnetik Batuan Ultrabasa di Desa Mosolo Pulai Wawonii Provinsi Sulawesi Tenggara. Bandung: ITB

Kasbani, K. (2009). Tipe Sistem Panas Bumi di Indonesia dan Estimasi Potensi Energinya. Bul. Sumber Daya Geol, 4(3), 23–30. https://doi.org/10.47599/bsdg.v4i3.184

Pitulima, J., & Siregar, R. N. (2016). Identifikasi Struktur Geologi Sumber Air Panas Non Volkanik desa Nyelanding Bangka Selatan dengan menggunakan Metode Geolistrik Konfigurasi Wenner. Prosiding SNRT (Seminar Nasional Riset Terapan). Banjarmasin.

Putri, D. A. B., & Harianja, A. K. (2021). Identifikasi Prospek Panas Bumi Radiogenik Menggunakan Landsat-8 dan Gravitasi di Daerah Permis. Jurnal Geofisika Eksplorasi, 07(01), 52-70. https://doi.org/10.23960/jge.v7i1.115

Susanto, R. A., Sehah, S., & Irayani, Z. (2017). Interpretasi Data Anomali Medan Magnetik untuk Mengidentifikasi Peninggalan Kadipaten Pasir Luhur Desa Tamansari Karanglewas. JPF, 5(1), 34-45. https://media.neliti.com/media/publications/138668-ID-interpretasi-data-anomali-medan-magnetik.pdf
Published
2021-06-27
How to Cite
Siregar, A., Dewi, I., & Ngatijo, N. (2021). Identifikasi Batuan Granit Daerah Prospek Panas Bumi Nyelanding menggunakan Metode Magnetik. SPEJ (Science and Physic Education Journal), 4(2), 62-69. https://doi.org/https://doi.org/10.31539/spej.v4i2.2388
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