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Determination of Laterite Soil Profiles Based on Magnetic Suseptibility and Mineral Metals Content At Nickel Mining Locations PT Macika Mada Madana Site Palangga South Konawe Regency
Jahidin(a*), La Hamimu(a), L.O Ngkoimani(b), S. Asfar(b), Hasiba(a), A. Okto(b)

a) Geophysics Department Halu Oleo University, Campus Bumi Thridharma, Anduonohu, Kendari City, Sulawesi Tenggara Province, Phone (0401)3191929, Fax (0401) 3190496
b) Geologi Department Halu Oleo University, Campus Bumi Thridharma, Anduonohu, Kendari City, Sulawesi Tenggara Province, Phone (0401)3191929, Fax (0401) 3190496


Abstract

Abstract: Research has been carried out on the profiles of laterite soils at the PT Macika Mada Madana Site Palangga South Konawe District. The purpose of this study was to determine the profile of laterite soils based on magnetic susceptibility values and metal elements. A total of 180 laterite soil samples were taken from two trajectories measured by magnetic susceptibility values (χLF, χHF, χFD (%)) and the metal mineral content (Fe, Al, Ni, Si, Mg, Cr, Mn). The results of this study indicate that there are three layers in the laterite soil profile: The average value of χFD (%)> 2% is followed by increasing elements of Fe, Al, Mn, Cr, and Zn indicated as limonite layers, while for the value of (χFD (%) <2% is followed by an increase in the elements of Ni, Si, and SiO2 indicated as saprolite layers. The FD magnetic susbility value (%) which is close to zero and low Fe, Al, Cr, and Ni elements is followed by an increase in the content of Mg and Si elements at the bottom of the profile occurring in the transition zone or bed rock zone.

Keywords: Soil Laterite, Magnetic Susceptibility, Site Palangga

Topic: Magnetic Methods

Link: https://ifory.id/abstract/MG4t3Cgubv8K

Conference: International Conference on Electromagnetism, Rock Magnetism and Magnetic Material (ICER3M 2019)

Plain Format | Corresponding Author (Suryawan Asfar)

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