Geological Structural Control on the Distribution of Rock Alteration in Ngebel Lake and Surrounding Areas, Ponorogo, Indonesia
Keywords:
Structure, Alteration, Ngebel, Geothermal, Propylitic, Argillic.
Abstract
The Telaga Ngebel Complex is an area with an active geothermal system. Geothermal energy is considered a promising alternative energy source for the future, especially in light of the depletion of fossil fuels. In geothermal exploration, altered rocks serve as indicators of the presence of a geothermal system. The existence of an active geothermal system is closely related to alteration zones, which are, in turn, influenced by geological structures. This study aims to identify the structural controls on the distribution of alteration zones. The methods used include literature review, field surveys, remote sensing, sampling of altered rocks, and collection and measurement of structural data. The results show that the study area has a high density of structural lineaments in the southern part of the lake, as evidenced by the intersection of several strike-slip faults. These intersections serve as pathways for hydrothermal fluids to ascend. The alteration found in these high-density areas is predominantly propylitic alteration. Other types of alteration observed include argillic alteration.
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2. Aprianto, R., Lestari, I. D., & Puspitasari, P. A. D. (2023). Analisis Potensi Panas Bumi sebagai Sumber Energi Listrik Alternatif di Kabupaten Sumbawa. Titian Ilmu: Jurnal Ilmiah Multi Sciences, 15(2), 89-96. https://doi.org/10.30599/jti.v15i2.2415
3. Bakruddin, W. U., & Warnana, D. D. (2017). Analisa Batuan Alterasi Panas Bumi Arjuno-Welirang Berdasarkan Mineraloginya. Jurnal Inotera, 2(2).
4. Bemmelen, R. W. V. (1949). The Geology of Indonesia. Amsterdam: Government Printing Office.
5. Canavarro, L., Suprapto, S., & Hendaryono, H. (2018). Geologi Dan Studi Kendali Struktur Terhadap Alterasi Hidrotermal Desa Jeruk Dan Sekitarnya, Kecamatan Bandar, Kabupaten Pacitan, Provinsi Jawa Timur. Jurnal Ilmiah Geologi PANGEA, 5(2), 17-32.
6. Fajri, K., Rosana, M. F., Haryanto, A. D., Setiawan, I., & Hidayat, R. (2021). Karakteristik Alterasi Hidrotermal di Daerah Panasbumi Sorik Marapi, Kabupaten Mandailing Natal, Sumatera Utara. Geoscience Journal, 5(1), 49-58.
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9. Harsolumakso, A. H., Noeradi, D., Rudyawan, A., Amiarsa, D., Wicaksono, S., & Nurfarhan, A. A. (2019). Geology of the Eastern Part of the Volcanic-Kendeng Zone of East Java: Stratigraphy, Structures and Sedimentation Review from Besuki and Situbondo Areas. Jurnal Geologi dan Sumberdaya Mineral, 20(3), 143-152. https://doi.org/10.33332/jgsm.geologi.v20i3.465
10. Hartono, U., Baharuddin, & Brata, K. (1992). Peta Geologi Lembar Madiun, Jawa Timur. Skala 1:100000.
11. Hafizh, T., Patonah, A., Haryanto, I., & Priowasono, E. (2017). Kontrol Struktur terhadap Mineralisasi pada Daerah North West di Area Tambang Batu Hijau, PT. Newmont Nusa Tenggara. Geoscience Journal, 1(3), 201-206. https://doi.org/10.24198/pgj.v1i3.15081
12. Khadijah, N. S. (2018). Analisis Pembangunan Pembangkit Listrik Tenaga Panas Bumi (PLTP) Melalui Insentif Fiskal dalam Mendukung Ketahanan Energi Indonesia. Ketahanan Energi, 3(2).
13. Mangidotua, E. F., Gunawan, C., & Indrawan, I. G. B. (2018). Pengaruh Alterasi Hidrotermal Terhadap Tingkat Intensitas Gerakan Massa di Desa Klesem dan Sekitarnya, Pacitan, Jawa Timur. Proceeding, Seminar Nasional Kebumian Ke-11.
14. Noor, D. 2012. Pengantar Geologi. Bogor: Universitas Pakuan.
15. Nurwahyudin, D. S., & Harmoko, U. (2020). Pemanfaatan dan Arah Kebijakan Perencanaan Energi Panas Bumi di Indonesia Sebagai Keberlanjutan Maksimalisasi Energi Baru Terbarukan. Jurnal Energi Baru dan Terbarukan, 1(3), 111-123. https://doi.org/10.14710/jebt.2020.10032
16. Pirajno, F. (1992). Hydrothermal mineral deposits, principles and fundamental concepts for the exploration geologist. Berlin, Heidelberg, New York, London, Paris: Springer-Verlag.
17. Qodri, R. R., & Putra, A. (2018). Studi alterasi hidrotermal dan mineralisasi batuan di sekitar mata air panas Garara Bukit Kili, Kabupaten Solok, Sumatera Barat. Jurnal Fisika Unand, 7(3), 246-252. https://doi.org/10.25077/jfu.7.3.246-252.2018
18. Rahmayanti, L., Rahmah, D. M., & Larashati, L. (2021). Analisis pemanfaatan sumber daya energi minyak dan gas bumi di Indonesia. Jurnal Sains Edukatika Indonesia (JSEI), 3(2), 9-16.
19. Sari, R. J. (2018). Potensi Panasbumi Parangwedang Sebagai Sumber Energi Alternatif dan Penunjang Perekonomian Daerah Kabupaten Bantul. Prosiding Seminar Nasional ReTII, 13, 268-276.
20. Saptadji, N. M. (2012). Catatan Kuliah Teknik Panas Bumi. Bandung: ITB.
21. Sidik, M., & Harmoko, U. (2022). Potensi Energi Panas Bumi di Jawa Timur Sebagai Energi Alternatif Pengganti Energi Fossil. Jurnal Energi Baru dan Terbarukan, 3(1), 49-60. https://doi.org/10.14710/jekk.v%25vi%25i.13395
22. Sumotarto, U., Irawan, A., & Hendrasto, F. (2020). Study of Hydrothermal Alteration Based on Analysis of X-Ray Diffraction at Cisolok Geothermal Area, Sukabumi District, West Java. In Proceedings World Geothermal Congress, 1.
23. Tampubolon, Y. E. (2020). Studi Prakiraan Potensi Pembangkit Listrik Panas Bumi di PLTP Sarulla (Doctoral dissertation, Universitas Sumatera Utara).
24. Wijayanti, M. D. (2023). Energi Panas Bumi. Jakarta: Bumi Aksara.
25. Wulandari, S., & Sutriyono, E. (2023). Studi Morfotektonik Daerah Ereunpalay, Kabupaten Tasikmalaya, Jawa Barat. Jurnal Universal Technic, 2(2), 53-66.
26. Yudiantoro, D. F., Ratnaningsih, R., Pratiknyo, P., Maheri, M., Sayudi, D. S., Paramitahaty, I., ... & Abdurrachman, M. (2020, October). Development of Ngebel Volcano as Geoheritage and Tourism Education of Volcano, Electric Energy and Geothermal, Ponorogo, East Java. In Proceeding of LPPM UPN “Veteran” Yogyakarta Conference Series 2020–Engineering and Science Series (Vol. 1, No. 1, pp. 18-32). http://dx.doi.org/10.31098/ess.v1i1.90
27. Yudiantoro, D. F., Ratnaningsih, D. R., Pratiknyo, P., Mahreni, M., Sayudi, D. S., Haty, I. P., ... & Sampurno, D. G. (2023). Magma Evolution of Ngebel Volcano, Ponorogo, East Java, Indonesia. Indonesian Journal on Geoscience, 10(1), 51. https://doi.org/10.17014/ijog.10.1.51-62
Published
2025-05-08
How to Cite
Andy Wijaya, Kusumayudha, S. B., Yudiantoro, D. F., Yatini, & Asfahani M. G. (2025). Geological Structural Control on the Distribution of Rock Alteration in Ngebel Lake and Surrounding Areas, Ponorogo, Indonesia. International Journal of Science and Society, 7(2), 139-154. https://doi.org/10.54783/ijsoc.v7i2.1424
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