Identifikasi Mineralisasi Sulfida Menggunakan Metode Geolistrik 2D Resistivitas dan Induced Polarization (IP) Daerah Vulkanik Tolitoli, Sulawesi Tengah
DOI:
https://doi.org/10.29303/goescienceed.v7i1.1671Keywords:
Geoelectrical Resistivity, Induced Polarization, Sulfide Mineralization, Volcanic Rocks, TolitoliAbstract
This study aims to identify indications of sulfide mineralization in the volcanic area of Tolitoli, Central Sulawesi, using two-dimensional (2D) geoelectrical resistivity and Induced Polarization (IP) methods. Data acquisition was carried out along ten survey lines using the Wenner–Schlumberger configuration, which were divided into two observation areas. The resistivity inversion results show relatively high values, generally exceeding 1000 Ωm, interpreted as massive and relatively fresh volcanic rocks such as andesite and basalt. Nevertheless, the Induced Polarization data reveal zones with moderate to high chargeability values (40–60 ms), indicating the presence of disseminated sulfide minerals, particularly pyrite, within the volcanic rocks. The chargeability anomalies are locally developed and are generally associated with fracture zones and geological structures that act as pathways for hydrothermal fluid migration. The most prominent prospective zones for sulfide mineralization were identified along survey lines 3 and 6. The integration of resistivity and IP methods is proven to be effective in identifying indications of sulfide mineralization in complex volcanic environments, even within high-resistivity rocks, and provides a preliminary assessment of subsurface mineralization potential in the Tolitoli area.
References
Ali, M. A. H., Mewafy, F. M., Qian, W., Alshehri, F., Ahmed, M. S., & Saleem, H. A. (2023a). Integration of electrical resistivity tomography and induced polarization for characterization and mapping of (Pb-Zn-Ag) sulfide deposits. Minerals, 13(7). https://doi.org/10.3390/min13070986
Ali, M. A. H., Mewafy, F. M., Qian, W., Alshehri, F., Ahmed, M. S., & Saleem, H. A. (2023b). Integration of electrical resistivity tomography and induced polarization for characterization and mapping of (Pb-Zn-Ag) sulfide deposits. Minerals, 13(7), 1–19. https://doi.org/10.3390/min13070986
Amsah, L. O. M. Y., & Umar, E. P. (2020a). Identifikasi zona mineralisasi emas menggunakan metode resistivitas dan induksi polarisasi (IP) di Desa Lintidu Kabupaten Buol. JURNAL GEOCELEBES, 4(2), 144–149. https://doi.org/10.20956/geocelebes.v4i2.11126
Amsah, L. O. Muh. Y., & Umar, E. P. (2020b). Identifikasi zona mineralisasi emas menggunakan metode resistivitas dan induksi polarisasi (IP) di Desa Lintidu Kabupaten Buol. JURNAL GEOCELEBES, 4(2), 144–149. https://doi.org/10.20956/geocelebes.v4i2.11126
Bakkar, U. Z., Kasim, M., Akase, N., & Rompo, A. I. (2020). Karakteristik alterasi dan mineralisasi hidrotermal Daerah Hulawa, Gorontalo, Indonesia. Jambura Geoscience Review, 2(1), 1–15. https://doi.org/10.34312/jgeosrev.v2i1.2472
Han, M. H., Shin, S. W., Park, S., Cho, S. J., & Kim, J. H. (2016). Induced polarization imaging applied to exploration for low-sulfidation epithermal Au-Ag deposits, Seongsan mineralized district, South Korea. Journal of Geophysics and Engineering, 13(5), 817–823. https://doi.org/10.1088/1742-2132/13/5/817
Han, M.-H., Shin, S. W., Park, S., Cho, S. J., & Kim, J.-H. (2016). Induced polarization imaging applied to exploration for low-sulfidation epithermal Au-Ag deposits, Seongsan mineralized district, South Korea. Journal of Geophysics and Engineering, 13(5), 817–823. https://doi.org/10.1088/1742-2132/13/5/817
Hasria, Idrus, A., & Warmada, I. (2020). Perubahan komposisi batuan metamorf akibat proses alterasi hidrotermal pada endapan emas di Pegunungan Rumbia, pada Lengan Tenggara Pulau Sulawesi. Jurrnal Geologi Dan Sumberdaya Mineral, 17(3), 119–127. https://doi.org/10.33332/jgsm.geologi.21.3.119-127p
Kandora, T. A. H., Nur, I., & Irfan, U. R. (2022). Studi pendahuluan; alterasi hidrotermal pada endapan tembaga supergen di Daerah Tontra Kabupaten Bone Provinsi Sulawesi Selatan. JURNAL GEOCELEBES, 6(2), 187–193. https://doi.org/10.20956/geocelebes.v6i2.20431
Kasim, D. N. P., Arifin, Y. I., Manyoe, I. N., Rompo, A. I., & Iswanto, D. (2023). Kompleksitas tatanan geologi dan hubungannya terhadap sebaran distribusi potensi mineralisasi di Prospek Gadung Sulawesi Tengah. Jurnal GEOSAPTA, 9(1), 63–70. https://doi.org/10.20527/jg.v9i1.13667
Muhammad, A. G., Indrastomo, F. D., & Sukadana, I. G. (2017). Pola tahanan jenis dan konduktivitas batuan mengandung mineral radioaktif di Botteng dan Takandeang, Mamuju, Sulawesi Barat. Eksplorium, 38, 49–62.
Nugraheni, E. S., Yatini, & Santoso, A. (2023a). Application of induced polarization (IP) method for identifying metallic mineral distribution in the Leon area. Indonesian Mining Journal, 26(2), 61–72. https://doi.org/10.30556/imj.Vol26.No2.2023.1344
Nugraheni, E. S., Yatini, & Santoso, A. (2023b). Application of induced polarization (ip) method for identifying metallic mineral distribution in the Leon area. Indonesian Mining Journal, 26(2), 61–72. https://doi.org/10.30556/imj.Vol26.No2.2023.1344
Othman, O. E., Abd El-Kader, H. A. M., Alam, S. S., & Abd El-Aziem, S. H. (2017). Cytochrome b conservation between six camel breeds reared in Egypt. Journal of Genetic Engineering and Biotechnology, 15(1), 1–6. https://doi.org/10.1016/j.jgeb.2017.04.006
Ratman, N. (1976). Peta geologi lembar Tolitoli, Sulawesi Utara (Skala 1:250.000). Bandung, Indonesia: Direktorat Geologi.
Santoso, B., & Subagio. (2016). Pendugaan mineral kromit menggunakan metode induced polarization (IP) di Daerah Kabaena Utara, Bombana Sulawesi Tenggara. Jurnal Geologi Dan Sumberdaya Mineral, 17(3), 179–192.
Senduk, K. G., & Abdurrachman, M. (2023). Volcanostratigraphy in the Lokon volcano area and its surroundings,North Sulawesi. BULLETIN OF GEOLOGY, 7(2), 1144–1154. https://doi.org/10.5614/bull.geol.2023.7.2.2
Su, Z., Revil, A., Ghorbani, A., Zhang, X., Zhao, X., & Richard, J. (2024a). Combining electrical resistivity, induced polarization, and self-potential for a better detection of ore bodies. Minerals, 14(1), 1–22. https://doi.org/10.3390/min14010012
Su, Z., Revil, A., Ghorbani, A., Zhang, X., Zhao, X., & Richard, J. (2024b). Combining electrical resistivity, induced polarization, and self-potential for a better detection of ore bodies. Minerals, 14(1), 1–22. https://doi.org/10.3390/min14010012
Sudarsono, & Setiawan, I. (2012). Paragenesa mineral bijih sulfida hidrotermal di Daerah Kluwih Kabupaten Pacitan Jawa Timur: Pendekatan berdasarkan mineralogi dan inklusi fluida. Jurnal Geologi Dan Sumberdaya Mineral, 22(1), 25–33.
Syamsuddin, Haryani, T., Riyadi, R., Ramli, M., & Aswad, S. (2021). Penentuan kedalaman lapisan badrock di Kawasan Reklamasi Kota Makassar dengan metode geolistrik resistivitas konfigurasi Wenner-Schlumberger. JURNAL GEOCELEBES, 5, 1–8. https://doi.org/10.20956/geocelebes.v5i1.11836
Vaughan, D. J., & Corkhill, C. L. (2017). Mineralogy of sulfides. Elements, 13(2), 81–87. https://doi.org/10.2113/gselements.13.2.81
Telford, W. M., Geldart, L. P., & Sheriff, R. E. (1990). Applied geophysics (2nd ed.). Cambridge, UK: Cambridge University Press.
