Identification of Magma Intrusion Distribution in the Sekincau Mountain Area Based on the Euler Deconvolution Method of Gravity Data

Application of Gravity-Based Euler Deconvolution for Intrusive Mapping

Authors

  • Anisa Amanda Geophysical Engineering, University of Lampung, Bandar Lampung, 35145, Indonesia
  • Rizki Buana Agustian Geophysical Engineering, University of Lampung, Bandar Lampung, 35145, Indonesia
  • Aksela Dian Fista Geophysical Engineering, University of Lampung, Bandar Lampung, 35145, Indonesia
  • Ilham Dani Geophysical Engineering, University of Lampung, Bandar Lampung, 35145, Indonesia

DOI:

https://doi.org/10.70561/geocelebes.v10i1.49005

Keywords:

Bouguer Anomaly, Euler Deconvolution, Geothermal, Gravity, Magma Intrusion

Abstract

Mount Sekincau, West Lampung, is located within the active Bukit Barisan tectonic zone and exhibits geothermal potential controlled by magmatic activity and geological structures. This study aims to identify the distribution and depth of magmatic intrusions using gravity data analysis and Euler deconvolution. GGMPlus satellite gravity data were processed to generate Complete Bouguer Anomaly, regional and residual anomalies, analytical signal, Euler solutions, and three-dimensional models. The Complete Bouguer Anomaly values range from 38.05 to 58.32 mGal, with high anomalies concentrated in the central part of the study area. Positive residual anomalies ranging from 0.88 to 2.78 mGal indicate the presence of shallow high-density bodies interpreted as magmatic intrusions. Analytical signal and Euler deconvolution results with a structural index of 0 reveal clusters of shallow sources associated with fault zones. Three-dimensional modeling confirms a southeastward-oriented intrusive body. These results indicate that shallow magmatic intrusions act as the primary heat source of the Sekincau geothermal system.

References

Alfuqara, D. A., Al-E’bayat, M. S., Alsaaideh, A. S., & Al Dwairi, R. A. (2025). Sustainable exploration of critical minerals: Integrated magnetotelluric and gravity surveys for lithium pegmatite targeting. International Journal of Environmental Sciences, 11(24S), 1700–1713. https://theaspd.com/index.php/ijes/article/view/10353

Amin, T. C., Sidarto, S., Santosa, S., & Gunawan, W. (1994). Geology of the Kotaagung quadrangle, Sumatera (1:250,000). Geological Research and Development Centre.

Castro, F. R., Oliveira, S. P., de Souza, J., & Ferreira, F. J. F. (2020). Constraining Euler deconvolution solutions through combined tilt derivative filters. Pure and Applied Geophysics, 177(10), 4883–4895. https://doi.org/10.1007/s00024-020-02533-w

Cao, S., Deng, Y., Yang, B., Lu, G-Y., Zhu, Z., Chen, P., Xie, J., & Chen, X. (2024). 3-D probability density imaging of Euler solutions using gravity data: A case study of Mount Milligan, Canada. Acta Geophysica, 72(5), 3371–3391. https://doi.org/10.1007/s11600-023-01279-y

Dani, I., Zaenudin, A., Hutomo, A. I., & Yuniza, N. (2024). Analysis of Subsurface Structure of Bandar Lampung City Based on Gravity Anomalies. Geodynamics & Tectonophysics, 15(4), 0772. https://doi.org/10.5800/gt-2024-15-4-0772

Daud, Y., Sulistyo, A., Fahmi, F., Nuqramadha, W. A., Fitrianita, F., Sesesega, R. S., Rosid, S., Pati, G. P., Maulana, M. R., Khoiroh, M., Rahman, K. R., & Subroto, W. (2019). First horizontal derivative and Euler deconvolution in application for reconstructing structural signature over the Blawan-Ijen geothermal area. IOP Conference Series: Earth and Environmental Science, 254(1), 012008. https://doi.org/10.1088/1755-1315/254/1/012008

Dianwiyono, Y., & Wiradityo, D. P. (2025). Optimization of geophysical design survey priority areas for unconventional oil and gas exploration using TOPEX gravity data analysis. Jurnal Pendidikan Indonesia, 6(10), 4617–4633. https://doi.org/10.59141/japendi.v6i10.8697

Dung, N. K., Ebong, E. D., Gomez-Ortiz, D., Abdulrazzaq, Z. T., Al-Saady, H. A., Dung, T. T., Kha, T. V., Dai, N. B., & Duong, T. T. (2025). Novel regional–residual anomaly separation technique for evaluating Moho configuration and crustal density structure beneath the East Vietnam Sea (South China Sea). Journal of Asian Earth Sciences: X, 14, 100210. https://doi.org/10.1016/j.jaesx.2025.100210

Farrasha, M., Yeri, N. A., Dani, I., & Rasimeng, S. (2023). Aplikasi metode turunan kedua vertikal data gravitasi untuk interpretasi Sesar Cugenang, Jawa Barat. Jurnal Teknik Geologi: Ilmu Pengetahuan dan Teknologi, 6(2), 22–30. http://dx.doi.org/10.30872/jtgeo.v6i2.13534

Handyarso, A., & Mauluda, A. D. (2018). Penerapan metode dekonvolusi Euler untuk estimasi kedalaman sumber anomali. Geomatika, 24(1), 21–30. https://doi.org/10.24895/JIG.2018.24-1.726

Hasanah, L., Aminudin, A., Ardi, N. D., Utomo, A. S., Yuwono, H., Kamtono, K., Wardhana, D. D., Gaol, K. L., & Iryanti, M. (2016). Graben structure identification using gravity method. IOP Conference Series: Earth and Environmental Science, 29, 012013. https://doi.org/10.1088/1755-1315/29/1/012013

Hirt, C., Claessens, S. J., Fecher, T., Kuhn, M., Pail, R., & Rexer, M. (2013). New ultrahigh-resolution picture of Earth’s gravity field. Geophysical Research Letters, 40(16), 4279–4283. https://doi.org/10.1002/grl.50838

Hosseini, S. H., Afshar, A., Abedi, M., Ganbarifar, S., Oskooi, B., & Moradi, S. (2025). Fixed window joint Euler deconvolution for depth estimation of magnetic and gravity data in the Shavaz region. Scientific Reports, 15(1), 42054. https://doi.org/10.1038/s41598-025-26220-9

Iqbal, M., & Juliarka, B. R. (2019). Analisis kerapatan kelurusan sebagai indikator tingkat permeabilitas di Lapangan Panasbumi Suoh-Sekincau, Lampung. Journal of Science and Applicative Technology, 3(2), 61–67 https://doi.org/10.35472/jsat.v3i2.212

Juwita, W., Juventa, J., Setiawan, A. M., Martha, A. A., Hudayat, N., & Sutejo, B. (2024). Identification of potential hydrocarbon traps using the gravity method in the Bengkulu Basin. Iranian Journal of Geophysics, 18(3), 69–83. https://doi.org/10.30499/IJG.2023.409882.1535

Karaiskos, D., Apostolopoulos, G., & Orfanos, C. (2024). Gravity survey for mineral exploration in Gerolekas bauxite mining site, Greece. Mining, 5(1), 3. https://doi.org/10.3390/mining5010003

Liana, Y. R., Wea, T. M. M., Syarifah, W., Supriyadi, S., & Khumaedi, K. (2020). Analisis anomali Bouguer data gaya berat: Studi kasus di Kota Lama Semarang. JRST (Jurnal Riset Sains dan Teknologi), 4(2), 63–68. https://doi.org/10.30595/jrst.v4i2.6301

Moritz, H. (1980). Geodetic reference system 1980. Bulletin Géodésique, 54(3), 395–405. https://doi.org/10.1007/BF02521480

Nurul, M., Rasimeng, S., Yogi, I. B. S., Yulianata, A., & Yuliantina, A. (2020). Forward modelling metode gaya berat dengan model intrusi dan patahan menggunakan Octave. Jurnal Geocelebes, 4(2), 111–117. https://doi.org/10.20956/geocelebes.v4i2.10112

Nuzula, J. F., & Setiahadiwibowo, A. P. (2023). Penentuan fasies sentral gunung api purba menggunakan metode gravitasi pada kawasan Gunung Ijo, Pegunungan Kulonprogo. Jurnal Pendidikan, Sains, Geologi, Dan Geofisika (GeoScienceEd Journal), 4(2), 32–38. https://doi.org/10.29303/goescienceed.v4i2.233

Nyakundi, D. N., Nyakundi, E. R., & Namaswa, S. (2025). Euler deconvolution of gravity data for structural mapping and heat source targeting in the Silali geothermal field, Kenya. Journal of Geosciences and Geomatics, 13(2), 43–51. https://doi.org/ 10.12691/jgg-13-2-2

Pham, L. T., Oliveira, S. P., Le-Huy, M., Nguyen, D. V., Nguyen-Dang, T. Q., Do, T. D., Tran, K. V., Nguyen, H-D. T., Ngo, T-N. T., & Pham, H. Q. (2024). Reliable Euler deconvolution solutions of gravity data through the β-VDR and THGED methods. Vietnam Journal of Earth Sciences, 46(3), 432–448. https://doi.org/10.15625/2615-9783/21009

Raja, A., Tanesib, J., Lapono, L. A. S., & Lewerissa, R. (2025). Integrating high-resolution gravity gradients and 3D inversion modeling to delineate mineral resources in the Lewa District, East Sumba, Indonesia. Indonesian Physical Review, 8(3), 712–733. https://doi.org/10.29303/ipr.v8i3.501

Ramadhan, B. T., Setyawan, A., Sasongko, D. P., Raharjo, I. B., & Sastranegara, R. M. T. (2017). Pemodelan inversi gaya berat dengan panduan Euler deconvolution untuk struktur bawah permukaan di Lapangan Panas Bumi B24. Youngster Physics Journal, 6(2), 131–138. https://ejournal3.undip.ac.id/index.php/bfd/article/view/17116

Ramadhan, I., & Pohan, A. F. (2024). Pemisahan anomali regional dan residual metode gravitasi menggunakan moving average, upward continuation, dan polynomial. Jurnal Fisika Unand, 13(1), 1–7. https://jfu.fmipa.unand.ac.id/index.php/jfu/article/view/1122

Ramadhani, A., Aprina, P. U., Purba, H., Rofiq, M., Wiranatanagara, M. B., Maulin, H. B., & Prananda, A. (2025). Crustal structure modeling using regional gravity in the Tarakan Sub-Basin. In IOP Conference Series: Earth and Environmental Science, 1547(1), 012010. https://doi.org/10.1088/1755-1315/1547/1/012010

Reid, A. B., Allsop, J. M., Granser, H., Millett, A. J., & Somerton, I. W. (1990). Magnetic interpretation in three dimensions using Euler deconvolution. Geophysics, 55(1), 80–91. https://doi.org/10.1190/1.1442774

Sugianto, A., Takodama, I., & Rahadinata, T. (2017). Identifikasi struktur sistem panas bumi Pantar berdasarkan analisis gradien horizontal dan pemodelan 3D data gaya berat. Buletin Sumber Daya Geologi, 12(2), 135–143. https://doi.org/10.47599/bsdg.v12i2.33

Supriyadi, S., Khumaedi, K., Sugiyanto, S., & Setiaswan, F. (2019). Pemisahan anomali regional dan residual data gaya berat: Studi kasus Kota Lama Semarang. Physics Education Research Journal, 1(1), 29. https://doi.org/10.21580/perj.2019.1.1.3927

Syukri, M. (2020). Pengantar Geofisika (Edisi pertama). Syiah Kuala University Press.

Uieda, L., Souza-Junior, G. F., Uppal, I., & Oliveira Jr, V. C. (2025). Euler inversion: Locating sources of potential-field data through inversion of Euler’s homogeneity equation. Geophysical Journal International, 241(3), 1536–1552. https://doi.org/10.1093/gji/ggaf114

Zaenudin, A., Dani, I., & Amalia, N. (2020). Delineasi Sub-Cekungan Sorong berdasarkan anomali gaya berat. Jurnal Geocelebes, 4(1), 14–22. https://doi.org/10.20956/geocelebes.v4i1.7976

Zaenudin, A., Karyanto, K., Kurniasih, A., & Wibowo, R. C. (2021). Analisis struktur patahan daerah Suoh menggunakan metode gaya berat dan penentuan kerapatan patahan. Positron, 11(2), 95–103. https://doi.org/10.26418/positron.v11i2.48461

Zhanakulova, K., Adebiyet, B., Orynbassarova, E., Yerzhankyzy, A., Kassymkanova, K-K., Abdykalykova, R., & Zakariya, M. (2025). Application of machine learning methods for gravity anomaly prediction. Geosciences, 15(5), 175. https://doi.org/10.3390/geosciences15050175

Downloads

Published

2026-04-01

How to Cite

Amanda, A., Agustian, R. B., Fista, A. D., & Dani, I. (2026). Identification of Magma Intrusion Distribution in the Sekincau Mountain Area Based on the Euler Deconvolution Method of Gravity Data: Application of Gravity-Based Euler Deconvolution for Intrusive Mapping. JURNAL GEOCELEBES, 10(1), 69–81. https://doi.org/10.70561/geocelebes.v10i1.49005

Issue

Vol. 10 No. 1: April 2026

Section

Articles

License

Copyright (c) 2026 JURNAL GEOCELEBES

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).