Identification of the Central Sumatra Basin Based on Reduced to The Pole Geomagnetic Anomaly Data and the Half-Slope Method

Main Article Content

Soraya Tiana Dewi
Ayu Safira
Andro Valentino Manurung
Syamsurijal Rasimeng
Rustadi

Abstract

The Central Sumatra Basin is a back arc basin which is one of the largest oil-producing basins in Indonesia. This study aims to analyze the magnetic anomaly in the Central Sumatra Basin using the Reduce to Pole and Half-Slope methods. The methods in this study include filtering magnetic data from Sumatran geological data, making a map of the total magnetic field anomaly, and carrying out a reduction transformation to the poles in the form of a monopole, followed by 3 slices of RTP data slices, then calculating Half-Slope using RTP data slices. using Matlab software. The total magnetic field value before Reduce to Pole (RTP) was in the range of -90 to 60 nT. The value after Reduce to Pole (RTP) is in the range of -140 to 190 nT. In the results of slice 1, the average depth value is 59.2 km. Slice 2 results obtained an average depth value of 35.2 km. The average depth value on slice 3 is 42.8 km. Determine the basin boundary and slice the data in the basin boundary area for analysis using the half-slope method. Obtained an average value of depth at the boundary of the Central Sumatra basin of 19.6 km.

Downloads

Download data is not yet available.

Article Details

How to Cite
“Identification of the Central Sumatra Basin Based on Reduced to The Pole Geomagnetic Anomaly Data and the Half-Slope Method”. Jurnal Ilmu Fisika dan Pembelajarannya (JIFP) 8, no. 2 (December 14, 2024): 106–118. Accessed April 1, 2025. https://jurnal.radenfatah.ac.id/index.php/jifp/article/view/21572.
Section
Artikel

How to Cite

“Identification of the Central Sumatra Basin Based on Reduced to The Pole Geomagnetic Anomaly Data and the Half-Slope Method”. Jurnal Ilmu Fisika dan Pembelajarannya (JIFP) 8, no. 2 (December 14, 2024): 106–118. Accessed April 1, 2025. https://jurnal.radenfatah.ac.id/index.php/jifp/article/view/21572.

References

Arif, Z., & Lepong, P. (2016). Deliniasi Prospek Bijih Besi dengan Mengunakan Metode Geomagnetik (Lokasi Penelitian Pelaihari, Kab Tanah Laut, Kalimantan Selatan). Prosiding Seminar Sains Dan Teknologi FMIPA Unmul, 450–455. https://fmipa.unmul.ac.id/files/docs/16. Zainul arif.pdf.

Blakely, R. . (1996). Potential Theory in Gravity and Magnetic.

BPPKA, P. (1996). Petroleum Geology of Indonesian Basins: Principles, Methods and Application.
Eubank, R. ., & Makki, A. . (1981). Structural geology of the Central Sumatra back-arc basin. Proceeding Indonesian Petroleum Association, 10th Annual Convention.

Heidrick, T. ., & Aulia, K. (1993a). A structural and tectonic model of the Coastal Plains Block, Central Sumatra basin, Indonesia. Proceeding Indonesian Petroleum Association, 22nd Annual Convention.

Heidrick, T. ., & Aulia, K. (1993b). Kerangka Tektonik Pulau Sumatera.

Heryanto, R., & Hermiyanto, H. (2006). Potensi batuan sumber (source rock) hidrokarbon di Pegunungan Tigapuluh, Sumatera Tengah. Jurnal Geologi Indonesia, 1(1), 37–48. https://doi.org/10.17014/ijog.vol1no1.20065a.

Irsyad, M., & Haryanto, D. (2018). Pemodelan 2D Batuan Bawah Permukaan Daerah Mamuju Sulawesi Barat dengan Menggunakan Metode Magnetik. AL-FIZIYA, I(1).

Mertosono, S., & Nayoan, G. A. . (1974). The Tertiary Basin Area of Central Sumatra (pp. 63–76). Indonesian Pet. Assoc., 3th Annual Convention Proceeding.

Musafak, Z., & Santosa, B. . (2007). Laporan Penelitian Interpretasi Metode Magnetik Untuk Penentuan Struktur Bawah Permukaan Di Sekitar Gunung Kelud Kabupaten Kediri.

Natasia, N., Syafri, I., Alfadli, M. K., & Arfiansyah, K. (2017). Analisis Fasies Reservoir A Formasi Menggala di Lapangan Barumun. Bulletin of Scientific Contribution, 15(2), 139–150.

Prakasa, F. I. (2019). Laporan Praktikum Interpretasi Endapan Menggunakan Metode Peter dan Mag2DC. Scribd. https://id.scribd.com/document/495859550/Praktikum-GPP-Modul-B-Fakhmi-Imanuddin-Prakasa-12116075.

Raharjo, S. A., & Wibowo, O. (2014). Pendugaan Model Sumber Anomali Magnetik Bawah Permukaan di Area Pertambangan Emas Rakyat Desa Paningkaban , Kecamatan Gumelar , Kabupaten Banyumas. Jurnal Fisika Indonesia, XVIII, 38–42.

Rasimeng, S. (2008). Analisis Sesar Gunung Rajabasa Lampung Selatan Sebagai Daerah Prospek Geothermal Berdasarkan Data Anomali Medan Magnet Total. Sains MIPA, 14(1), 67–72.

Ravat, D. (2007). Reduction to Pole. In Encyclopedia of Geomagnetism and Paleomagnetism. https://doi.org/10.1007/978-1-4020-4423-6.

Telford, W. ., Gedaart, L. ., & Sheriff, R. . (1990). Applied Geophysics.

Universitas Islam Riau, U. (2018). Cekungan Sumatera Tengah. Repository.Ac.Id. https://repository.ac.id.

Utama, W., Desa Warnana, D., Bahri, S., & Hilyah, A. (2016). Eksplorasi Geomagnetik untuk Penentuan Keberadaan Pipa Air di Bawah Permukaan Bumi. Jurnal Geosaintek, 2(3), 157. https://doi.org/10.12962/j25023659.v2i3.2099.

Wati, I. D. . (2018). Interpretasi Metode Geomagnetik untuk Penentuan Struktur Bawah Permukaan Pada Daerah Sekitar Amblesan Sumur di Dusun Nanas Desa Manggis Kecamatan Puncu Kabupaten Kediri. Universitas Islam Negeri Maulana Malik Ibrahim.

Widada, S., Said, S., Hendaryono, & Listriyanto. (2018). Potensi Shale Hydrocarcon Formasi Brown Shale, Cekungan Sumatra Tengah Berdasarkan Data Log Mekanik. Jurnal Offshore: Oil, Production Facilities and Renewable Energy, 2(1), 43. https://doi.org/10.30588/jo.v2i1.356.

Williams, H. ., & Eubank, R. . (1995). Hydrocarbon habitat in the rift graben of the Central Sumatra Basin. Twenty Fourth Annual Convention, 1.

Wkindonesia. (2017). Cekungan Sumatera Tengah. http://wkindonesia.blogspot.com/2017/07/cekungan-sumatera-tengah-4.html.