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

JGE (Jurnal Geofisika Eksplorasi) Pub Date : 2024-04-03 DOI:10.23960/jge.v10i1.305

Nur Asmiani, A. B. Thamsi, Supardin Nompo, Suryanto Bakri, Muh. Yusril Affandy Tukloy, Harmitun Harmitun

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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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基于 lgso 和 hgso 值的红土镍矿床模型 pt mitra karya agung lestari

红土镍矿矿床模型提供了有关地表以下红土镍矿矿床形态的信息，可作为实施采矿活动的考虑因素之一。开展这项研究的目的是确定红土镍矿床的三维（3D）分布模型，并根据 DH 区块的高品位红土矿（HGSO）和低品位红土矿（LGSO）值确定红土镍矿的储量。本研究采用反距离加权法（IDW）估算红土镍矿资源量，并使用采矿软件 Surpac 6.3.2 生成三维模型。使用的数据包括红土镍含量数据（化验）、x、y、z 坐标数据（项圈）、勘测数据和岩性数据。根据 PT Mitra Karya Agung Lestari 公司 DH 区块 1.3 截断品位 (COG) 值的 IDW 估算结果，获得了镍含量为 1.7 的高品位闪长岩矿 (HGSO) 值和镍含量为 1.3 的低品位闪长岩矿 (LGSO)，HGSO 的吨位值为 111.994 吨，LGSO 的吨位值为 371.044 吨。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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JGE (Jurnal Geofisika Eksplorasi)

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