MODEL OF LATERITE NICKEL DEPOSITS BASED ON LGSO AND HGSO VALUES PT MITRA KARYA AGUNG LESTARI

Authors

  • Nur Asmiani Mining Engineering Study Program, Faculty of Industrial Technology, Universitas Muslim Indonesia, Indonesia
  • Alam Budiman Thamsi Mining Engineering Study Program, Faculty of Industrial Technology, Universitas Muslim Indonesia, Indonesia
  • Supardin Nompo Mining Engineering Study Program, Faculty of Industrial Technology, Universitas Muslim Indonesia, Indonesia
  • Suryanto Bakri Mining Engineering Study Program, Faculty of Industrial Technology, Universitas Muslim Indonesia, Indonesia
  • Muh. Yusril Affandy Tukloy Mining Engineering Study Program, Faculty of Industrial Technology, Universitas Muslim Indonesia, Indonesia
  • Harmitun Harmitun PT Mitra Karya Agung Lestari, Indonesia

DOI:

https://doi.org/10.23960/jge.v10i1.305

Keywords:

HGSO, IDW, LGSO, Nickel Laterite, PT MKAL

Abstract

The laterite nickel deposit model provides information about the form of laterite nickel deposits below the surface, which can be used as one of the considerations in the implementation of mining activities. The purpose of conducting this research is to determine the distribution model of nickel laterite deposits in 3 dimensions (3D) and to determine the amount of nickel laterite reserves based on high-grade saprolite ore (HGSO) and low-grade saprolite ore (LGSO) values in the DH Block. In this research, Inverse Distance Weighted (IDW) is used to estimate nickel laterite resources, which are applied using mining software Surpac 6.3.2 to produce a model in 3D form. The data used are laterite nickel content data (assay), x, y, and z coordinate data (collar), survey data, and lithology data. Based on IDW estimation results with a Cut Off Grade (COG) value of 1.3 in the DH Block of PT Mitra Karya Agung Lestari, High-Grade Saprolite Ore (HGSO) values were obtained at Ni content > 1.7 and Low-Grade Saprolite Ore (LGSO) at Ni content > 1.3, with a tonnage value of 111.994 tons of HGSO and 371.044 tons of LGSO.

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Published

2024-04-03

How to Cite

Asmiani, N., Thamsi, A. B., Nompo, S., Bakri, S., Tukloy, M. Y. A., & Harmitun, H. (2024). MODEL OF LATERITE NICKEL DEPOSITS BASED ON LGSO AND HGSO VALUES PT MITRA KARYA AGUNG LESTARI. JGE (Jurnal Geofisika Eksplorasi), 10(1), 16–23. https://doi.org/10.23960/jge.v10i1.305

Issue

Vol. 10 No. 1 (2024)

Section

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