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Haluk, Hermina
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Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering

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GEOCHEMICAL CHARACTERISTICS OF LATERITE NICKEL DEPOSITS IN BLOCK A PT. KAWEI SEJAHTERA MINING, RAJA AMPAT: KARAKTERISTIK GEOKIMIA ENDAPAN NIKEL LATERIT PADA BLOK A PT. KAWEI SEJAHTERA MINING, RAJA AMPAT Haluk, Hermina
INTAN Jurnal Penelitian Tambang Vol. 8 No. 1 (2025): INTAN: Jurnal Penelitian Tambang
Publisher : Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56139/intan.v8i1.293

Abstract

This study was conducted on Kawei Island, Raja Ampat Regency, Southwest Papua Province, focusing on the geochemical characteristics of laterite nickel profiles in the concession area of ​​PT. Kawei Sejahtera Mining (KSM) is a laterite nickel mining company. The study aims to analyze the geochemical characteristics of laterite nickel profiles using field observation methods and X-ray fluorescence (XRF)--based geochemical analysis of 16 laterite zone samples. The results of the analysis show that the laterite nickel deposit profile of Block A consists of overburden, limonite zone, saprolite, and bedrock with varying thicknesses, reaching 16 meters. Geochemical characteristics show an increase in Ni, Fe, Co, MnO, CaO, and Al₂O₃ elements from the bedrock zone to the overburden, while MgO and SiO₂ levels decrease. Nickel levels increase from the overburden to the limonite and saprolite zones but decrease in the bedrock zone.
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