OPHIOLITE : Jurnal Geologi Terapan
Vol 7 No 1 (2025): APRIL 2025

Estimasi Sumberdaya Nikel Laterit dengan Menggunakan Metode Krigging di PT. Gerbang Multi Sejahtera

Al Amin Siharis (Teknik Pertambangan Universitas Muhammadiyah Kendari, Indonesia)
Hadi Zulkarnain Ladianto (Teknik Pertambangan Universitas Halu Oleo, Kendari, Indonesia)



Article Info

Publish Date
14 Jul 2025

Abstract

This study was conducted to estimate laterite nickel resources using a spatial approach to determine the three-dimensional model of deposit distribution within the working area of PT. Gerbang Multi Sejahtera, located in South Konawe Regency, Southeast Sulawesi. The estimation was carried out using the Kriging method. The results show that the limonite zone contains approximately 3,391,000 tons of resources with an average nickel grade of 1.1%, while the saprolite zone contains around 4,213,500 tons with an average grade of 1.51%. The three-dimensional modeling was performed using a block size of 12.5 x 12.5 x 1 meters, which provides a more accurate representation of the spatial distribution of the deposits. This study is expected to contribute to mine planning and support decision-making for further exploration.

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Journal Info

Abbrev

journal

Publisher

Subject

Earth & Planetary Sciences Engineering

Description

OPHIOLITE: Jurnal Geologi Terapan adalah terbitan berkala ilmiah yang dikelola dan diterbitkan oleh Program Studi Teknik Geologi Universitas Halu Oleo. Terbitan ini memuat artikel pada topik ilmu geologi maupun geologi terapan. Riset ilmu geologi mencakup riset sains kebumian di bidang geologi, ...