Delineation of Sulfide Mineralization Zone Based on Geomagnetic and Induced Polarization (IP) Methods in Sangon-II, Kokap, Kulonprogo Districts, Yogyakarta
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Resumen
Utilizamos métodos geomagnéticos y de polarización inducida (PI) 2D para identificar zonas de mineralización aurífera potencial en el área de Sangon-II Kolonprogo, Yogyakarta. Los datos geológicos históricos indican que la mineralización aurífera está asociada a vetas de cuarzo. Se tomaron mediciones del campo magnético en 200 puntos y 8 líneas de PI en el área de estudio. Los resultados del análisis de Reducción al Polo (RTP) de los datos magnéticos y el modelado de inversión de PI muestran la distribución de las áreas mineralizadas. Los valores bajos de anomalía magnética (<500 nT), medios (500-1000 nT) y altos (>1000 nT) se interpretan como zonas de alteración alta, media y baja, respectivamente. Al combinar los valores de resistividad y cargabilidad, los resultados de inversión de PI muestran la zonificación de las áreas mineralizadas en el área de Sangon-II. Baja resistividad (<50 Ωm) a media (50-300 Ωm) y alta cargabilidad (>30 ms) son zonas de capas de agua saturada, suelo en la superficie de la meteorización de rocas ígneas. Resistividad (50-300 Ωm) y cargabilidad media (10-30 ms) son zonas de alteración de sílice-arcilla, argílico y propilítico. Resistividad media (50-300) Ωm y alta cargabilidad (>30 ms) son zonas de mineralización de sulfuros. Alta resistividad (> 300 Ωm) y baja cargabilidad (<10 ms) son rocas volcánicas inalteradas, andesita-riodacita, roca ígnea, Formación Nanggulan. Mientras que resistividad (> 300 Ωm) y alta cargabilidad (> 30 ms) son zonas de roca ígnea con alto contenido de metal como vetas. Los resultados del análisis magnético y de polarización inducida (IP) indican la presencia de una falla con dirección N350E. Esta falla controla el proceso de alteración y la mineralización de sulfuros en el área Sangon-II. La distribución de las áreas de mineralización se encuentra al este, extendiéndose hacia el sur, alrededor de la falla. Los resultados del modelado 3D muestran que esta área es bastante prometedora.
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Adepelumi, A. A., Yi, M.-J., Kim, J.-H., Ako, B. D., & Son, J. S. (2006). Integration of surface geophysical methods for fracture detection in crystalline bedrocks of southwestern Nigeria. Hydrogeology Journal, 14(7), 1284–1306. doi: https://doi.org/10.1007/s10040-006-0051-2
Allis, R. G. (1990). Geophysical anomalies over epithermal systems. Journal of Geochemical Exploration, 36(1–3), 339–374. Doi: https://doi.org/10.1016/0375-6742(90)90060-N
Apparao, A., Srinivas, G. S., Sarma, V. S., Thomas, P. J., Joshi, M. S., & Prasad, P. R. (2000). Depth of detection of highly conducting and volume polarizable targets using induced polarization. Geophysical Prospecting, 48(5), 797–813. doi: https://doi.org/10.1046/j.1365-2478.2000.00212.x
Arribas Jr., A. (1995). Characteristics of high-sulfidation epithermal deposits, and their relation to magmatic fluid. Mineralogical Association of Canada Short Course, 23, 419–454.
Bahri, S., Zakaria, M. F., & Yatini, Y. (2016). Eksplorasi Mineral Menggunakan Metode Polarisasi Terinduksi di Daerah Kasihan, Kecamatan Tegalombo, Kabupaten Pacitan. [Bachelor's Thesis]. Universitas Islam Negeri Sunan Kalijaga.
Boschi, F. (2012). Magnetic prospecting for the archaeology of Classe (Ravenna). Archaeological Prospection, 19(3), 219–227. doi: https://doi.org/10.1002/arp.1430
Burazer, M., Grbović, M., & Žitko, V. (2001). Magnetic data processing for hydrocarbon exploration in the Pannonian Basin, Yugoslavia. Geophysics, 66(6), 1669–1679. doi: https://doi.org/10.1190/1.1486769
Camarero, P. L., & Moreira, C. A. (2017). Geophysical investigation of earth dam using the electrical tomography resistivity technique. REM-International Engineering Journal, 70(1), 47–52. doi: https://doi.org/10.1590/0370-44672016700099
Doyle, H. A. (1990). Geophysical exploration for gold; a review. Geophysics, 55(2), 134–146. doi: https://doi.org/10.1190/1.1442820
Ercan, Ö. A., Şeren, A., & Elmas, A. (2014). Gold and Silver Prospection Using Magnetic, Radiometry and Microgravity Methods in the Kışladağ Province of Western Turkey. Resource Geology, 64(1), 25–34. doi: https://doi.org/10.1111/rge.12024
Evrard, M., Dumont, G., Hermans, T., Chouteau, M., Francis, O., Pirard, E., & Nguyen, F. (2018). Geophysical Investigation of the Pb–Zn Deposit of Lontzen–Poppelsberg, Belgium. Minerals, 8(6), 233. doi: https://doi.org/10.3390/min8060233
Handyarso, A., & Kadir, W. G. A. (2017). Gravity Data Decomposition Based on Spectral Analysis and Halo Wavelet Transform, Case Study at Bird’s Head Peninsula, West Papua. Journal of Engineering & Technological Sciences, 49(4), 423-437. doi: https://doi.org/10.5614/j.eng.technol.sci.2017.49.4.1
Hedenquist, J. W., Arribas, A., & Gonzalez-Urien, E. (2000). Exploration for epithermal gold deposits. In S. G. Hagemann & P. E. (Eds.), Brown, Gold in 2000 (pp. 245–277). Society of Economic Geologists. https://doi.org/10.5382/Rev.13.07
Hedenquist, J. W., Harris, M., & Camus, F. (2012). Geology and Genesis of Major Copper Deposits and Districts of the WorldA Tribute to Richard H. Sillitoe. Society of Economic Geologists. doi: https://doi.org/10.5382/SP.16
Irvine, R. J., & Smith, M. J. (1990). Geophysical exploration for epithermal gold deposits. Journal of Geochemical Exploration, 36(1–3), 375–412. doi: https://doi.org/10.1016/0375-6742(90)90061-E
Lenhare, B. D., & Moreira, C. A. (2020). Geophysical prospecting over a meta-ultramafic sequence with indicators of gold mineralization in Rio Grande do Sul State, Southernmost Brazil. Pure and Applied Geophysics, 177(11), 5367–5383. doi: https://doi.org/10.1007/s00024-020-02559-0
Lévy, L., Maurya, P. K., Byrdina, S., Vandemeulebrouck, J., Sigmundsson, F., Árnason, K., Ricci, T., Deldicque, D., Roger, M., & Gibert, B. (2019). Electrical resistivity tomography and time-domain induced polarization field investigations of geothermal areas at Krafla, Iceland: comparison to borehole and laboratory frequency-domain electrical observations. Geophysical Journal International, 218(3), 1469–1489. doi: https://doi.org/10.1093/gji/ggz240
Locke, C. A., Johnson, S. A., Cassidy, J., & Mauk, J. L. (1999). Geophysical exploration of the Puhipuhi epithermal area, Northland, New Zealand. Journal of Geochemical Exploration, 65(2), 91–109. doi: https://doi.org/10.1016/S0375-6742(98)00067-3
Mashhadi, S. R., & Ramazi, H. (2018). The application of resistivity and induced polarization methods in identification of skarn alteration haloes: A case study in the Qale-Alimoradkhan Area. Journal of Environmental and Engineering Geophysics, 23(3), 363–368. doi: https://doi.org/10.2113/JEEG23.3.363
Mohammadzadeh Moghaddam, M., Mirzaei, S., Nouraliee, J., & Porkhial, S. (2016). Integrated magnetic and gravity surveys for geothermal exploration in Central Iran. Arabian Journal of Geosciences, 9, 506. doi: https://doi.org/10.1007/s12517-016-2539-y
Pramumijoyo, P., Idrus, A., Warmada, I. W., & Yonezu, K. (2017). Geology, geochemistry and hydrothermal fluid characteristics of low sulfidation epithermal deposit in the Sangon Area, Kokap, Special Region of Yogyakarta. Journal of Applied Geology, 2(1), 48–58. doi: https://doi.org/10.22146/jag.42442
Purnamawati, D. I., & Tapilatu, S. R. (2012). Genesa Dan Kelimpahan Mineral Logam Emas, Dan Asosiasinya Berdasarkan Analisis Petrografi, Dan Atomic Absorbtion Spectrophotometry (Aas), Di Daerah Sangon, Kabupaten Kulonprogo, Propinsi Diy. Jurnal Teknologi, 5(2), 163–171. https://ejournal.akprind.ac.id/index.php/jurtek/article/view/976
Rabeh, T. (2009). Prospecting for the ferromagnetic mineral accumulations using the magnetic method at the Eastern Desert, Egypt. Journal of Geophysics and Engineering, 6(4), 401–411. doi: https://doi.org/10.1088/1742-2132/6/4/008
Raharjo, W., Sukandarrumidi, R. H. M. D., & Rosidi, H. M. D. (1995). Peta Geologi Lembar Yogyakarta, Jawa,[map] 1: 100.000. Bandung: Direktorat Geologi.
Sarlak, B., & Aghajani, H. (2017). Archaeological investigations at Tepe Hissar-Damghan using gravity and magnetics methods. Journal of Research on Archaeometry, 2(2), 19–34. doi: https://doi.org/10.29252/jra.2.2.19
Sillitoe, R. H. (2000). Styles of high-sulphidation gold, silver and copper mineralisation in porphyry and epithermal environments. Proceedings of the Australasian Institute of Mining and Metallurgy, 305(1), 19–34.
Sumner, J. S. (2012). Principles of induced polarization for geophysical exploration. Elsevier.
Tong, M., Li, L., Wang, W., & Jiang, Y. (2006). A time‐domain induced‐polarization method for estimating permeability in a shaly sand reservoir. Geophysical Prospecting, 54(5), 623–631. doi: https://doi.org/10.1111/j.1365-2478.2006.00568.x
Utama, B. S., Yatini, Y., Giamboro, W. S., & Hamdallah, H. (2024). Application of Geoelectric Method to Determine the Distribution of Liyangan Temple in Central Java. AMERTA, 42(2), 123–136. doi: https://doi.org/10.55981/amt.2024.4932
Yatini, Y. (2019). Influence of clay on time domain induced polarization, Indonesian Journal of Science and Technology, 3(1), 1-10. doi: https://doi.org/10.17509/ijost.v3i1.10794
Yatini, Y., Santoso, D., Laesanpura, A., & Sulistijo, B. (2018). Physical Modeling on Time Domain Induced Polarization (TDIP) Response of Metal Mineral Content. Indonesian Journal of Applied Physics, 8(2), 57–66.
Yatini, Y., Suyanto, I., & Puspaningrum, D. (2019). Application of polarization method (IP) to delineate the gold mineralization zones in Cihonje Areas, Banyumas Regency, Province of Central Java. IOP Conference Series: Materials Science and Engineering, 546(7), 072013. doi: https://doi.org/10.1088/1757-899X/546/7/072013
Yusefi, M. R., Hafizi, M. K., & Salari, B. (2017). Gold exploration using induced polarization and resistivity methods in Meyduk-Latala area. 79th EAGE Conference and Exhibition 2017, 2017(1), 1–3. doi: https://doi.org/10.3997/2214-4609.201701546
Zakaria, M. F. (2018). Identification of Heat Source and Alteration Zone of Parangwedang Geothermal System using Magnetic Method. EAGE-HAGI 1st Asia Pacific Meeting on Near Surface Geoscience and Engineering, 2018(1), 1–4. doi: https://doi.org/10.3997/2214-4609.201800342
Zhang, G., Lü, Q.-T., Lin, P.-R., & Zhang, G.-B. (2019). Electrode array and data density effects in 3D induced polarization tomography and applications for mineral exploration. Arabian Journal of Geosciences, 12, 1–17. doi: https://doi.org/10.1007/s12517-019-4341-0