NICKEL RESOURCE ESTIMATION BASED ON COG AT PIT 10 BLOCK B2 OF PT ANUGRAH HARISMA BARAKAH

https://doi.org/10.56139/intan.v9i1.389

Authors

  • elsa Putri program studi teknik pertambangan, fakultas matematika dan ilmu pengetahuan alam, universitas halu oleo
  • Erwin Anshari Dosen Teknik Pertambangan Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Halu Ole
  • Marwan Zam Mili Dosen Teknik Pertambangan Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Halu Ole

Keywords:

Resource Estimation, Nickel Laterite, Ordinary Kriging

Abstract

PT. Anugrah Harisma Barakah is a mining company operating in Pongkalaero Village, South Kabaena District, Bombana Regency, Southeast Sulawesi Province. The company operates under a Mining Business License (IUP) covering approximately 2,527 ha. Currently, the company plans to open a new pit, namely Pit 10 in Block B2, covering approximately 10 ha. This study aims to determine the amount of laterite nickel resources based on the Cut-Off Grade (COG) at Pit 10 Block B2. The research employed a quantitative approach combining theoretical concepts with field data from exploration activities. The Ordinary Kriging (OK) method was selected based on the Coefficient of Variation (COV) value of 0.77, indicating moderate data variability, and was supported by variogram analysis capable of describing the spatial continuity of nickel grade distribution. Fault structures were also identified, which significantly influence the profile and formation process of laterite nickel deposits. The total resource volume at Pit 10 Block B2 based on COG estimated at 852,812 m³, with a total tonnage of 1,451,696 tons and an average nickel grade of 1.76% Ni.

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References

Arif, I. (2018). Nikel Indonesia. Jakarta: Gramedia Pustaka utama.

Badan Standarisasi Nasional. (2011). Pedoman Pelaporan, Sumberdaya, dan Cadangan Mineral. Amandemen 1-SNI-13-4726-2011., 32.

Bargawa, W. S. (2018). Perencanaan Tambang. Yogyakarta: Kilau Book.

Cendrajaya, R. I. M., Juarsan, L. I., Masri, Rubaiyn, A., Syahrul, Neni, Ramadani, S., & Hasria. (2024). '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

KCMI. (2017). Kode KCMI. (November), pp.1–37.

Kurniadi, A., Rosana, M. F., Yuningsih, E. T., & Luhur, P. H. (2018). 'Karakteristik Batuan Asal Pembentukan Endapan Nikel Laterit Di Daerah Madang dan Serakaman Tengah', Padjadjaran Geoscience Journal, 2(3), pp.221-234.

Noor, D. (2010). Geomorfologi. Yogyakarta: Graha Ilmu.

Poalahi Salu, S., Syakura, A., & Sartika Ambarsari, I. (2023). Estimasi Cadangan Bijih Nikel Laterit Menggunakan Metode Inverse Distance Weight (Idw) dan Kriging di PT. Adhi Kartiko Pratama. Jurnal Riset Teknologi Pertambangan (J-Ristam, 3(2), 81–88.

Gultom, F. M. E., & Rochmana, Y. Z. (2025).

'Mekanisme struktur geologi berdasarkan analisis DEM dan analisis stereografis daerah Banjaranyar sekitarnya Kabupaten Ciamis Jawa Barat', Basin: Jurnal Teknik Geologi, 8(2), pp. 10-25. https://doi.org/10.30872/ jtgeo.v8i1.22972

Darling, P. (2011) Mining Engineering Handbook Third Edition, Society for Mining, Metallurgy, And Exploration, INC.

Wintolo, D. (2019). Pengantar Statistik dan Geostatistik. Yogyakarta: Gadjah Mada University Press.

Published

2026-05-31

How to Cite

Putri, elsa, Anshari, E. ., & Zam Mili, M. (2026). NICKEL RESOURCE ESTIMATION BASED ON COG AT PIT 10 BLOCK B2 OF PT ANUGRAH HARISMA BARAKAH . INTAN Jurnal Penelitian Tambang, 9(1), 45–58. https://doi.org/10.56139/intan.v9i1.389

Issue

Vol. 9 No. 1 (2026): INTAN: Jurnal Penelitian Tambang

Section

Articles
Copyright & Licensing

Copyright (c) 2026 elsa Putri, Erwin Anshari, Marwan Zam Mili

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.