Ni-Fe LATERIZATION TREND AND NICKEL Laterite prospect area determination ON LATERITE DEPOSITS IN LASOLO KEPULAUAN DISTRICT, NORTH KONAWE REGENCY, SOUTHEAST SULAWESI: POLA LATERISASI Ni-Fe DAN PENENTUAN AREA PROSPEK NIKEL LATERIT PADA ENDAPAN LATERIT DI KECAMATAN LASOLO KEPULAUAN, KABUPATEN KONAWE UTARA, SULAWESI TENGGARA

Rio Irhan Mais Cendra Jaya; Hasria; Haslan; Deniyatno; La Ode Asrafil; Laode Ihksan Juarsan; Al Firman; Indrawati; La Ode Sahidin; La Ode Andimbara; Alfirman

doi:10.47599/bsdg.v21i1.521

Penulis

Rio Irhan Mais Cendra Jaya Universitas Halu Oleo, Indonesia Penulis
Hasria Universitas Halu Oleo, Indonesia Penulis
Haslan Universitas Halu Oleo, Indonesia Penulis
Deniyatno Universitas Halu Oleo, Indonesia Penulis
La Ode Asrafil Badan Riset dan Inovasi Daerah Provinsi Sulawesi Tenggara Penulis
Laode Ihksan Juarsan Universitas Halu Oleo, Indonesia Penulis
Al Firman Universitas Halu Oleo, Indonesia Penulis
Indrawati Universitas Halu Oleo, Indonesia Penulis
La Ode Sahidin Universitas Halu Oleo, Indonesia Penulis
La Ode Andimbara Universitas Halu Oleo, Indonesia Penulis
Alfirman Universitas Halu Oleo, Indonesia Penulis

DOI:

https://doi.org/10.47599/bsdg.v21i1.521

Kata Kunci:

pola laterisasi, nikel laterit, area prospek

Abstrak

Penelitian ini dilakukan di Kecamatan Lasolo Kepulauan, Kabupaten Konawe Utara yang bertujuan untuk menyelidiki pola laterisasi Ni Fe dan penentuan area prospek endapan nikel laterit. Metode yang digunakan adalah analisis dan interpolasi data hasil pengeboran untuk menentukan distribusi Ni, ketebalan ore, stripping ratio, dan area prospek endapan. Data-data pengeboran berupa data kimia beberapa unsur dan oksida mayor hasil analisis XRF, seperti Ni, Fe, SiO₂, MgO, dan Al₂O₃, dan data ketebalan ore. Hasil analisis pola laterisasi memperlihatkan jika endapan nikel laterit di lokasi penelitian termasuk ke dalam tipe saprolitic ore dimana Ni cenderung trakumulasi di Zona Saprolit dengan kadar Ni yang lebih tinggi dari nilai Cut of Grade (COG). Hasil interpolasi dan pemetaan diperoleh area prospek terbagi menjadi tiga yakni area tidak prospek (Ni <1,5%), area dengan prospek pengayaan sedang (Ni 1,5% – 1,8%), dan area dengan prospek pengayaan tinggi (Ni >1,8%).

Referensi

Aiglsperger, T., Proenza, J. A., Lewis, J. F., Labrador, M., Svojtka, M., Rojas-Purón, A., Longo, F. & Ďurišová, J., 2016. Critical metals (REE, Sc, PGE) in Ni laterites from Cuba and the Dominican Republic. Ore Geology Reviews, 73, pp. 127-147. https://doi.org/https://doi.org/10.1016/j.oregeorev.2015.10.010

Cornée, J.-J., Tronchetti, G., Villeneuve, M., Lathuilière, B., Janin, M.-C., Saint-Marc, P., Gunawan, W. & Samodra, H., 1995. Cretaceous of eastern and southeastern Sulawesi (Indonesia): new micropaleontological and biostratigraphical data. Journal of Southeast Asian Earth Sciences, 12(1), pp. 41-52. https://doi.org/https://doi.org/10.1016/0743-9547(95)00024-0

Fernández-Caliani, J. C. & Cantano, M., 2009. Intensive kaolinization during a lateritic weathering event in South-West Spain. CATENA, 80(1), pp. 23-33. https://doi.org/10.1016/j.catena.2009.08.005

Gidey, T., Hagos, M., Konka, B. & Gebremicale, A., 2020. Genesis and characteristics of lateritic iron deposit in Mai-Kuhli area, western Tigray, northern Ethiopia. Journal of African Earth Sciences, 172, pp. 104005. https://doi.org/10.1016/j.jafrearsci.2020.104005

Hasria, H., Asfar, S. & Tawakkal, E. R., 2021. Profile of Laterite Nickel Deposits, at Tinanggea District, South Konawe Regency, Southeast Sulawesi Province. PROMINE, 9(1), pp. 13-22. https://doi.org/10.33019/promine.v9i1.2345

Hasria, H., Jaya, R. I. M. C., Awadh, S., Riskiyanti, R., Deniyatno, D., Syahrul, S. & Septiana, S., 2024. Mineralogy and Geochemical Characteristics of Lateritic Nickel Deposit in Wiwirano District, North Konawe, SE Sulawesi, Indonesia. Iraqi Geological Journal, 57(2C), pp. 171-183. https://doi.org/10.46717/igj.57.2c.13ms-2024-9-21

Ito, A., Otake, T., Maulana, A., Sanematsu, K., Sufriadin & Sato, T., 2021. Geochemical constraints on the mobilization of Ni and critical metals in laterite deposits, Sulawesi, Indonesia: A mass‐balance approach. Resource Geology, 71(3), pp. 255-282. https://doi.org/10.1111/rge.12266

Jaya, R. I. M. C., Juarsan, L. I., Masri, Rubaiyn, A., Syahrul, Neni, Ramadani, S. & Hasria, 2024a. Petrochemistry of Ultramafic Rock in Baula-Pomalaa Ophiolite Complex, Southeast Sulawesi, Indonesia. Journal of Geoscience, Engineering, Environment, and Technology, 9(1), pp. 44-51. https://doi.org/10.25299/jgeet.2024.9.1.14491

Jaya, R. I. M. C., Masri, Juarsan, L. I., Haraty, S. R., Pramadana, R. & Hasria, 2024b. Serpentine Paragenesis in Ultramafic Rocks of the Baula - Pomalaa Ophiolite Complex, SE Sulawesi, Indonesia. Journal of Geology and Mineral Resources, 25(2), pp. 95-106. https://doi.org/10.33332/jgsm.geologi.v25i2.761

Mudd, G. M. & Jowitt, S. M., 2022. The New Century for Nickel Resources, Reserves, and Mining: Reassessing the Sustainability of the Devil’s Metal. Economic Geology, 117(8). https://doi.org/10.5382/econgeo.4950

Nugraha, A. M. S. & Hall, R., 2022. Neogene sediment provenance and paleogeography of SE Sulawesi, Indonesia. Basin Research, 34(5), pp. 1714-1730. https://doi.org/10.1111/bre.12682

Qi, D.-R., Lan, T.-G., Shu, Q., Feng, Y. & Zhou, S.-H., 2024. Nickel enrichment during lateritization of ophiolitic ultramafic rocks: A case study from the Kelurahan Pondidrha laterite profile in Sulawesi, Indonesia. Ore Geology Reviews, 170, pp. 106140. https://doi.org/10.1016/j.oregeorev.2024.106140

Ramdani, F. Z. F. R., Ramadhani, A. H. P., Cahyadi, A., Ernowo & Widodo, W., 2024. Derajat Lateritisasi Dan Pengayaan Unsur Fe-Ni-Co Pada Batuan Harsburgit Di Pulau Sebuku, Kalimantan Selatan. Buletin Sumber Daya Geologi, 18(3), pp. 171-182. https://doi.org/10.47599/bsdg.v18i3.411

Rusmana, E., Sukido, Sukarna, D., Haryono, E. & Simandjuntak, T. 1993. The Geological Map of Lasusua - Kendari, Sulawesi. Bandung: Geological Research and Development Centre.

Sarkar, T., Chatterjee, S. & Mishra, M., 2020. On detailed field-based observations of laterite and laterization: a study in the Paschim Medinipur lateritic upland of India. Journal of Sedimentary Environments, 5(2), pp. 219-245. https://doi.org/10.1007/s43217-020-00017-4

Simandjuntak, T. O. 1986. Sedimentology and Tectonic of the Collision Complex in the East Arm of Sulawesi, Indonesia, University of London.

Sukamto, R. & Ratman, N. 2013, Pre Tertiary Rocks, dalam Surono & Hartono, U. (eds.), The Geology of Sulawesi. Jakarta, LIPI Press, hal. 13-36.

Surono. 2013a, Continental Terrane, dalam Surono & Hartono, U. (eds.), The Geology of Sulawesi. Jakarta, LIPI Press, hal. 153-211.

Surono 2013b. The Geology of The Southeastern Arm of Sulawesi. Bandung, Geological Agency, Ministry of Energy and Mineral Resources.

Surono. 2013c, Quarternary and Neogen Sediment Rocks, dalam Surono & Hartono, U. (eds.), The Geology of Sulawesi. Jakarta, LIPI Press, hal. 225-257.

Surono, S. & Bachri, S., 2001. Stratigraphy, sedimentation and palaeogeographic significance of the Triassic Meluhu Formation, Southeast arm of Sulawesi, Eastern Indonesia. Journal of Asian Earth Sciences, 20(2), pp. 177-192. https://doi.org/10.1016/s1367-9120(01)00037-2

Wei, X., Ji, H., Wang, S., Chu, H. & Song, C., 2014. The formation of representative lateritic weathering covers in south-central Guangxi (southern China). CATENA, 118, pp. 55-72. https://doi.org/10.1016/j.catena.2014.01.019

Xiong, X., Ma, B., Li, X., Yu, J., Shi, L., Wang, C. & Chen, Y., 2024. Hydrometallurgical process and recovery of valuable elements for limonitic laterite: A review. Chinese Journal of Chemical Engineering, 73, pp. 189-201. https://doi.org/10.1016/j.cjche.2024.05.011

Zhang, Y., Wang, X. F., Fu, T., Cui, K., Qi, Y., Wang, J. & Qie, J., 2019. Mineralogical Characteristics of the Nickel Laterite, Southeast Ophiolite Belt, Sulawesi Island, Indonesia. Mining, Metallurgy & Exploration, 37(1), pp. 79-91. https://doi.org/10.1007/s42461-019-00147-y