IDENTIFIKASI BATUAN PENYUSUN SISTEM PANAS BUMI NON-VULKANIK BANGKA TENGAH BERDASARKAN PENAMPANG 2D ANOMALI GAYA BERAT
DOI:
https://doi.org/10.22437/jop.v8i3.27080Keywords:
geothermal, non-volcanic, Terak, KeretakAbstract
The geothermal system in the Central Bangka area is a radiogenic non-volcanic geothermal system. This geothermal system is not associated with the volcanism process. The purpose of this research is to identify the rock components of the Non-Volcanic geothermal system in the Central Bangka geothermal field based on the 2D cross section of the gravity anomaly. This research was conducted by performing spectral analysis using Fast Fourier Transform (FFT) on the complete Bouger anomaly to obtain the residual anomaly. 2D modeling of the residual anomaly was done using inverse modeling with the smoothness constraint equation. The results show that the subsurface structure of the non-volcanic geothermal system in the Central Bangka geothermal area consists of cover rock in the form of sandstone (2.38 - 2.42 gr/cm3) at a depth of 3,000 m, reservoir rock consists of granite. (2.65 - 2.66 gr/cm3) at a depth of 0 - 9,000 m and the bedrock consists of diorite (2.87 - 2.9 gr/cm3) at a depth of 2,000 - 10,000 m.
Downloads
References
Pitulima, J., & Siregar, R. N. 2016. Identifikasi Struktur Geologi Sumber Air Panas Non Vulkanik Desa Nyelanding Bangka Selatan dengan Menggunakan Metode Geolistrik Konfigurasi Wenner. Seminar Nasional Riset Terapan.
Siregar, R. N., & Kurniawan, W. B. 2018. 2D Interpretation of Subsurface Hot Spring Geothermal Structure in Nyelanding Village Through Schlumberger Geoelectrucity Configuration Method. Jurnal Ilmiah Pendidikan Fisika Al-BiRuni, 7(1), 81-87.
Direktorat Panas Bumi, D. E. 2017. Potensi Panas Bumi Indonesia Jilid 1. Jakarta: Kementerian Energi dan Sumber Daya Mineral .
Gusnia, E., Kusmita, T., & Indriawati, A. 2022. Analisis Anomali Gravity Daerah Panas Bumi Non-Vulkanik Di Bangka Tengah (Studi Kasus Panas Bumi Terak dan Keretak). JRFI, 1-7.
Zang, C., Hu, S., Zhang, S., Li, S., Zhang, L., Kong, Y., .Wang, Z. 2020. Radiogenic Heat Production Variations in The Gonghe Basin, Northeastern Tibetan Plateu: Implications For the origin of High-Temperature Geothermal Resoirces. Renewable Energy, 148, 284-297.
Yunizar. 2015. Analisa geolistrik untuk identifikasi sebaran sumber air panas menggunkan konsfigurasi schlumberger di Desa Kretak Kecamatan Sungaiselan Kabupaten Bangka Tengah Provinsi Kepulauan Bangka Belitung. Bangka: Universitas Bangka Belitung.
Firdaus, R., Oktaviyani, S., Hardianti, P., Kusmita, T., & Indriawati, A. 2021. Identification of Subsurface Rock Structure of Non-Volcanic Geothermal Systems Based on Gravity Anomalies (Terak Village, Central Bangka Regency). Journal of Applied Geospatial Information, 5(2), 539-543.
Kusmita, T., Fath, A. M., MZ, N., & Joni, W. 2020. Magnetotelluric method aplication for conceptual modelling of geothermal system Pariangan West Sumatera. IOP Conference Series: Earth and Environmental Science.
Afni, G. N., & Kusmita, T. 2022. Identifikasi Struktur Tektonik Sistem Geothermal Non-Vulkanik Daerah Nyelanding dan Permis Bangka Selatan Menggunakan Metode Gravity. JRFI, 2(1), 1-6.
Telfold, W. M., Geldart, L. P., & Sheriff, R. 1990. Applied Geophysics Second Edition. New York: Cambrige University Press.
Reynolds, J. M. 1997. An Introduction to Applied and Enviromental Geophysics. England: Jhon Willey & Sons.
Yilmaz, O. 2010. Seismic Data Analysis: Processing, Inversion, and Interpretation of Seismic Data). Society of Exploration Geophysicists.
supriyadi. 2009. Studi Gaya Berat Relatif di Semarang. Jurnal Fisika Indonesia, 5, 54-61.
Purnomo, J., Koesuma, S., & Yunianto, M. (2013). Pemisahan Anomali Regional-Residual pada Metode Gravitasi Menggunakan Metode Moving Average, Polynomial dan Inversion. Indonesian Journal of Applied Physics, 3(1).
Manga, A., & Djamal, B. 1990. Peta Geologi Lembar Bangka Utara, Sumatra. Dalam Peta Geologi Sumatera. Bandung: Pusat Penelitian dan Pengembangan Geologi.
Anderson, D., & Lund, J. 1979. Direct Utilization Of Geothermal Energy: A Technical Handbook. Unites States.
Tamanyu, S., & Sakaguchi, K. 2003.
Conceptual Model For Non-Volcanic Geothermal Resources – Examples From Tohuku Japan. Geological Survey of Japan.
Petersburg. 2001. Program For 2D Interpretation Of Magnetic and Gravity Data ZondGM2D. Zond Geophysical Software Saint.
Maulana, Y., Haryanto, A. D., Ismawan, & Kusnandi, D. 2019. Penentuan Tipe Fluida Serta Tingkat Permeabilitas Sistem Panas Bumi Daerah Tinigi, Toli-Toli, Sulawesi Tengah. Padjadjaran Geoscience Journal.
Alawiyah, U., & Kusmita, T. 2022. Sebaran Batuan Daerah Panas bumi Terak Bangka Tengah berdasarkan Anomali Magnetik. Jurnal Riset Fisika Indonesia, 3(1), 12–18. https://doi.org/10.33019/jrfi.v3i1.3356
Hinze, W. J., von Frese, R. R. B., & Saad, A. H. 2013. Gravity and Magnetic Exploration Principles, Practices, and Applications. Cambridge University Press.
