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Kajian Geologi, Radiometri dan Geokimia Granit Banggai dan Formasi Bobong Untuk Menentukan Daerah Potensial Uranium di Pulau Taliabu, Maluku Utara
DOI: http://dx.doi.org/10.17146/eksplorium.2016.37.1.2669
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Kajian geologi, radiometri dan geokimia granit Banggai dan Formasi Bobong telah dilakukan untuk mendapatkan daerah potensial uranium. Pulau Taliabu dipilih sebagai lokasi kajian karena secara tektonik pulau Taliabu adalah benua mikro pecahan dari benua Gondwana yang terpisah pada akhir Mesozoikum hingga Paleogen. Beberapa tipe mineralisasi uranium terbentuk pada periode Gondwana antara lain adalah mineralisasi tipe batupasir, mineralisasi tipe batu bara lignit dan mineralisasi tipe urat. Pulau Taliabu merupakan serpihan dari benua Gondwana sehingga diharapkan di Pulau Taliabu akan ditemukan mineralisasi uranium atau paling tidak ditemukan indikasi keterdapatan mineralisasi uranium. Tujuan dari kajian ini adalah untuk mendapatkan lokasi potensial uranium untuk pengembangan eksplorasi uranium di masa mendatang. Metode yang digunakan adalah mengkaji data geologi, radiometri, dan geokimia yang berasal dari berbagai sumber. Hasil kajian menunjukkan bahwa data geologi, radiometri, dan geokimia memberikan indikasi positif terhadap pembentukan cebakan uranium tipe batupasir. Granit Banggai berpotensi sebagai sumber uranium. Batupasir pada Formasi Bobong berpotensi sebagai batuan induk. Lapisan batubara dan pirit berpotensi sebagai presipitan. Daerah potensial uranium terletak di wilayah Formasi Bobong dan sekitarnya.
Geological, radiometrical, and geochemichal studies of Banggai granites and Bobong Formation have been conducted in order to obtain potential uranium area. Taliabu island is selected for the study because Taliabu island is a micro continent fraction of the Gondwana super continent that separated at the end of the Mesozoic to Paleogene period. Some types of uranium mineralization formed in the period of Gondwana include sandstone-type, lignite coal types and vein-type. Taliabu island is a small part from the Gondwana super continent so it is expected will be found uranium mineralization or at least indications of uranium mineralization occurences. The aim of this study is to obtain uranium potential areas for the development of uranium exploration in the future. The methods used are reviewing geological, radiometric, and geochemical data from various sources. The results of review showed that geological setting, radiometric, and geochemical data gives positive indication to the formation of uranium mineralization for sandstone type. Banggai Granite is a potential uranium source. Sandstone of Bobong Formation as a potential host rock. Coal and pyrite as a potential precipitant. Potential areas for uranium is located around Bobong Formation.
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[1] R. P. Koesoemadinata and S. Sastrawiharjo, “Uranium Prospect in Tertiary Sediments Sibolga Area, North Sumatra,” in Technical Committee Meeting on Uranium Deposits in Asia and the Pasific, Geological and Exploration, IAEA – BATAN, 1985.
[2] B. Soetopo, “Studi Geologi dan Mineralisasi U Sektor Ririt, Amel dan Tiga Dara, Kalan, Kalimantan Barat,” Eksplorium, vol. 30, no. 151, 2009.
[3] L. Subiantoro, P. Widito, and A. Marzuki, “Sintesis Geologi dan Mineralisasi U di Sektor Tanah Merah, Kalan, Kalimantan Barat,” Eksplorium, vol. 28, no. 143, 2007.
[4] Ngadenin, I. G. Sukadana, A. G. Muhammad, and Suripto, “Inventarisasi Potensi Sumber Daya Uranium Daerah Kawat, Mahakam Hulu, Kalimantan Timur Tahapan Prospeksi Detil,” Eksplorium, vol. 32, no. 2, 2011.
[5] I. G. Sukadana and F. D. Indrastomo, “Geologi dan Keterdapatan U di Sektor Paluq, Mahakam Hulu, Kalimantan Timur,” Eksplorium, vol. 31, no. 154, 2010.
[6] I. G. Sukadana, “Geologi dan Mineralisasi U Sektor Nyaan, Mahakam Hulu, Kalimantan Timur,” Eksplorium, vol. 33, no. 2, 2012.
[7] Ngadenin, I. G. Sukadana, F. D. Indrastomo, R. Iswanto, Tukijo, and U. Sarip, “Inventarisasi Potensi Sumberdaya Uranium di Mamuju, Sulawesi Barat Tahapan Prospeksi Pendahuluan,” Jakarta, 2014.
[8] F. P. Sagala, “Survei Geologi Daerah Hulu Way Samang, Lampung,” Jakarta, 1972.
[9] T. O. Simanjuntak and A. J. Barber, “Contrasting Tectonic Styles in the Neogene Orogenic Belts of Indonesia,” Tecton. Evol. Southeast Asia, vol. 106h, 1996.
[10] M. G. Audley-Charles, D. J. Carter, and J. S. Milsom, “Tectonic Development of Eastern Indonesia in Relation to Gondwanaland Dispersal,” Nature, vol. 239, pp. 35–39, 1972.
[11] R. Hall, “Late Jurassic–Cenozoic Reconstructions of the Indonesian Region and the Indian Ocean,” Tectonophysics, vol. 570–571, pp. 1–41, 2012.
[12] G. D. McKenzie, Gondwana Six: Stratigraphy, Sedimentology and Paleontology. Washington DC: American Geophysical Union, 1997.
[13] T. H. Torsvik and L. R. M. Cocks, “Gondwana from Top to Base in Space and Time,” Gondwana Res., vol. 24, no. 3–4, pp. 999–1030, 2013.
[14] E. Suess, Das Antlitz der Erde. Leipzig, Germany: G. Freytag, 1885.
[15] D. Cole, “A Review of Uranium Deposits in the Karoo Supergroup of South Africa,” in AAPG International Conference and Exhibition, 2008.
[16] Y. A. Murkute and S. P. Joshi, “Environment of Geological Setting for Uranium Mineralization and Geochemical Exploration with Review from Central India,” Int. J. Geol. Earth Environ. Sci., vol. 5, no. 3, pp. 108–117, 2015.
[17] A. D. Mckay and Y. Miezitis, “Australia’s URANIUM Resources, Geology and Development of Deposits,” Canberra, 2007.
[18] F. J. Dahlkamp, Uranium Deposits of the World: USA and Latin America. Berlin Heidelberg: Springer-Verlag, 2010.
[19] M. Cuney, “Supercontinents Cycle Through Time and Formation of Large Intracontinental Sedimentary Basin, Previliged Host of Sandstone Related Uranium Deposits,” in Technical Meeting on Uranium Deposits Formed in the Gondwana Supercontinent: The Importance of the Gondwana, Karoo, Parana and Similar Sedimentary Basins, 2015.
[20] H. Tulsidas, “Uranium Potential in the Gondwanas: Overview of the Tecnonic – Magmatic Controls,” in Technical Meeting on Uranium Deposits Formed in the Gondwana Supercontinent: The Importance of the Gondwana, Karoo, Parana and Similar Sedimentary Basins, 2015.
[21] P. Bruneton, “Uranium Depopsits during the Gondwana System,” 2015.
[22] J. B. Supandjono and E. Haryono, Peta Geologi Lembar Banggai, Sulawesi-Maluku Skala 1:250.000. Bandung: Pusat Penelitian dan Pengembangan Geologi, 1993.
[23] Surono and D. Sukarna, Peta Geologi Lembar Sanana, Maluku Skala 1 : 250.000. Bandung: Pusat Penelitian dan Pengembangan Geologi, 1993.
[24] F. Ferdian, R. Hall, and I. Watkinson, “A Structural Re-Evaluation Of The North Banggai-Sula Area, Eastern Indonesia,” in Proceedings, Indonesian Petroleum Association Thirty-Fourth Annual Convention & Exhibition, 2010.
[25] R. Sukamto, “Geologi Daerah Kepulauan Banggai dan Sula,” Geol. Indones., vol. 2, no. 3, pp. 23–28.
[26] R. Sukamto, “The Structure of Sulawesi in the Light of Plate Tectonics,” in Regional Conference on Geology and Mineral Resources of Southeast Asia, 1975.
[27] Kusnama, “Fasies dan Lingkungan Pengendapan Formasi Bobong Berumur Jura sebagai Pembawa Lapisan Batubara di Taliabu, Kepulauan Sanana-Sula, Maluku Utara,” J. Geol. Indones., vol. 3, no. 3, pp. 161–173, 2008.
[28] G. Bizon, J. J. Bizon, and C. Muller, “Result Stratigraphiques (Foraminiferes et Nanoplancton) des Echantillons Preveles en Indonesie dans I’Archipel de Sula et de Sulawesi (Celebes),” 1982.
[29] D. Soetarno, Paimin, and P. Sularto, “Prospeksi Pendahuluan Daerah Eksplorasi Indonesia Timur Kepulauan Sula,” Jakarta, 1982.
[30] Robert William Boyle, Geochemical Prospecting for Thorium and Uranium Deposits. Amsterdam: Elsevier Science Ltd, 1982.
[31] IAEA, World Distribution of Uranium Deposits (UDEPO) with Uranium Deposit Classification. Vienna: International Atomic Energy Agency, 2014.
[32] B. Soetopo, “Studi Mikroskopis Mineralisasi Uranium Daerah Mentawa, Kalimantan Tengah,” Eksplorium, vol. 31, no. 153, 2010.
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