Identifikasi Struktur Bawah Permukaan Daerah Potensi Panas Bumi Di Daerah Tulehu Menggunakan Metode Gravitasi
DOI:
https://doi.org/10.30872/w66fps36Keywords:
Geothermal, Gravity, GGMPlus, Geological StructuresAbstract
Indonesia has great geothermal potential, Indonesia is located in the path of volcanoes or the ring of fire can also be called the ring of fire. Maluku Province, especially the Ambon and Seram islands, has geothermal energy potential that can be developed as an alternative renewable source. One of the geothermal potentials located in the Maluku islands is WKP Tulehu which has a fairly high temperature reaching 134.09°C–251°C. One method that can be used to identify the subsurface layer of geothermal areas is the gravity method using GGMPlus gravity data. The 2013 Global Gravity Model Plus (GGMPlus) secondary gravity data is a global gravity model data that has ultra–high resolution with grid spacing between data points ~220 m in the north–south direction. The results of the identification of geological structures using gravity methods using regional anomaly values with a range of 80.7–101.3 mgal. The depth of the regional anomaly in the study area is estimated to be 1.862 km deep. There are 7 faults found in the 4 research cross sections. These faults are located in cross section A–A' at a distance of 8.30 km, cross section B–B' at a distance of 1.9 km and 5.1 km, cross section C–C' at a distance of 2.450 km and at a distance of 11.6 km, and cross section D–D' 2.248 km and 4.5 km.
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D. S. Nurwahyudin and U. Harmoko, “Pemanfaatan dan Arah Kebijakan Perencanaan Energi Panas Bumi di Indonesia Sebagai Keberlanjutan Maksimalisasi Energi Baru Terbarukan,” J. Energi Baru dan Terbarukan, vol. 1, no. 3, pp. 111–123, Oct. 2020, doi: 10.14710/jebt.2020.10032.
M. A. Adhiem, S. H. Permana, and B. M. Faturahman, Pembangkit Listrik Tenaga Surya bagi Pembangunan Berkelanjutan. Publica Indonesia Utama, 2021.
W. S. Tala, A. D. H. J. Hutabarat, and D. Gentana, “Karakteristik Geokimia Air Panas Dan Perkiraan Temperatur Bawah Permukaan Panas Bumi Daerah Oma Dan Tulehu Kabupaten Maluku Tengah,” Geosci. J., vol. 4, no. 4, pp. 338–348, 2020.
R. Lewerissa, “Analisis Tensor Gradien Gravitasi Lengkap dan Data Magnetik Bumi untuk Pemodelan Geologi Bawah Permukaan Sistem panas Bumi di Desa Suli dan Tulehu Kabupaten Maluku Tengah,” Disertasi S3 Fis. UGM. Yogyakarta, 2019.
Amandah, N. D. Ardi, and Waslaluddin, “Interpretasi Struktur Bawah Permukaan Gunung Sinabung pada Model Dua-Dimensi (2D) Menggunakan Data WGM 2012 dan Metode First Horizontal Derivative,” in Prosiding Seminar Nasional Fisika, 2022, pp. 291–298.
Alfisah, “Pemanfaatan Global Gravity Model Plus Untuk Analisis Fault di Area Panas Bumi Tampomas Dengan Metode Derivative dan Inversi 3 Dimensi.” Fakultas Sains dan Teknologi UIN Syarif Hidayatullah Jakarta, 2023.
J. M. Reynolds, An introduction to applied and environmental geophysics. John Wiley & Sons, USA, 2011.
M. Muhajirin, N. Ismail, and B. Bukhari, “The Computation of Residual and Regional Anomaly of Gravity Method Data By Polynomial Filter Using Microsoft Excel,” J. Aceh Phys. Soc., vol. 9, no. 2, pp. 37–41, 2020.
R. J. Blakely, Potential theory in gravity and magnetic applications. Cambridge university press, United Kingdom, 1996.
H. Grandis, “Pengantar pemodelan inversi geofisika,” Himpun. Ahli Geofis. Indones., Jakarta, 2009.
A. Septian, M. B. Alghifarry, R. Gayatri, S. Rasimeng, and I. Dani, “Pemrograman Dasar Dan Analisis Anomali Bouguer Sederhana Dalam Komputasi Menggunakan Matlab,” J. MIPA, vol. 20, no. xxx, pp. 1–10, 2020.
W. M. Telford, L. P. Geldart, and R. E. Sheriff, Applied geophysics. Cambridge university press, New York, 1990.
S. Tjokrosapoetra, E. Rusmana, and A. Achdan, “Peta Geologi Lembar Ambon,” Maluku, Pus. Penelit. Pengemb. Geol. (P3G), Bandung, 2011.
M. Yudistian, Thoriq, F. Hendrasto, and Y. Yunis, “Penentuan Top Reservoir Panas Bumi Daerah Tulehu Berdasarkan Pemodelan 3d Menggunakan Data Geokimia, Log Pada Sumur X Dan Interpretasi Data Magnetotellurik (Mt): Determination Of Top Geothermal Reservoir Of Tulehu Area With Identification Of Minerals In W,” J. Geosci. Eng. Energy, vol. 4, no. 1, pp. 104–115, 2023, doi: https://doi.org/10.25105/jogee.v4i1.13350.
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