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M. Farhan Yassar
Department of Geophysical Engineering, Faculty of Engineering, University of Lampung
Earth & Planetary Sciences Engineering Environmental Science

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Studi Awal Prospek Bahan Tambang Berdasarkan Sebaran Alterasi Hidrotermal Menggunakan Komposit dan Density Slicing Citra Landsat 8 di Kabupaten Ulubongka, Sulawesi Tengah I Gede Boy Darmawan; M. Farhan Yassar; Annisa Yulia Elvarani; Berlian Anisya Vira; Ledia Damayanti
PROMINE Vol 8 No 1 (2020): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v8i1.1799

Abstract

Difficult access to the field in Central Sulawesi causes the process of identifying prospects for mining minerals requires a relatively large time and cost. Therefore, the remote sensing approach can be carried out as a preliminary study to determine the distribution of hydrothermal alterations that characterize the presence of mine minerals. This study utilizes Landsat 8 imagery to obtain the distribution of alteration minerals, especially the group of ferrous mineral oxide and hydroxide minerals, clay and carbonate minerals and Ferromagnesian minerals. The method used is composite (RGB) 4/2, 6/7, 5 and 4/2, 6/7, 10 to detect the distribution of alteration minerals. Whereas the Density Slicing method uses 4/2, 5/6 and 6/7 ratio images to detect Ferrugitation, Ferromagnesian, clay and carbonate minerals. The results of the analysis showed the distribution of iron oxide and hydroxide minerals (Ferrugination) dominated the area in alluvium and opiolite rocks. This alteration distribution is interpreted as a prospect of further studies of the presence of mining minerals such as nickel and iron. Whereas ferromagnesian minerals, clays and carbonates dominate in conglomerate and limestone rocks.
Co-Authors Annisa Yulia Elvarani Berlian Anisya Vira I Gede Boy Darmawan Ledia Damayanti