Analyzing magnetic susceptibility and elemental composition of rocks and soil around Danau Diatas, West Sumatra, Indonesia

Abstract

The rocks on the surface of the earth have different formation process, beginning with the lava of volcanic activity that flow on the surface of the earth and then cool down forming igneous rocks. Rocks derived by volcanic eruptions contain different types of minerals than those formed by sedimentary or metamorphic processes. The aim of study was to evaluate the relation of magnetic susceptibility with the elemental composition of rock and soil around the Danau Diatas. Magnetic susceptibility was measured using Bartington susceptibility meter MS2B and the element composition has been measured by X-Ray Fluorescence. The values of magnetic susceptibility of low frequency (χlf) obtained for rock are 2332×10−8 m3/Kg, 2161,7×10−8 m3/Kg, and 2791,6×10−8 m3/Kg, while the values of magnetic susceptibility of low frequency (χlf) obtained for soils are 802,4×10−8 m3/Kg, 779,8×10−8 m3/Kg, and 58,4×10−8 m3/Kg. Rock and soil samples contain several elements such as Fe, Mn and Ti, with Fe having the highest concentration and thus the highest potential influence on their magnetic susceptibility.

Irregular Magnetic Susceptibility Pattern of Iron Sand from Pasia Jambak Beach, Pasia Nan Tigo, Padang, Indonesia

“…This is due to the process of mineral transportation by water and wind [11]. The low value of magnetic susceptibility is due to weathering and precipitation processes mixed with diamagnetic organic materials [12] [11]. Track A is not the same as Track B, this is also caused by the size of the waves so that the distribution of iron sand also changes.…”

Chemical Elements Analysis of Arjuno-Welirang Igneous Rocks

“…Various geophysical methods are used for mapping and mineral exploration (Sirbescu et al, 2023). The chemical elemental composition of rocks can be effectively analyzed using XRF (Balaram & Sawant, 2022;Fajri et al, 2020;Rampe et al, 2020). The geochemical lysis can also be used to evaluate mineral resources and mining materials, given that some types of volcanic rocks, such as andesite, contain valuable minerals such as gold and silver.…”

Characterization and Identification of Magnetic Mineral Content in Industrial Dry Ink (Toner)

“…The first type of magnetic toner with one component, containing one component of magnetic powder, non-magnetic toner with one component, containing one component of non-magnetic powder, non-magnetic toner with two components, containing one component of magnetic powder and one component of magnetic carrier mixed in the toner with a certain composition, a toner with two magnetic components, containing one component of magnetic powder and one component of magnetic carrier which are mixed in a toner of a certain composition [8]. Various developments in toner manufacturing methods are currently being carried out to obtain high-performance toner cartridges.…”

“…To observe the magnetic minerals contained in the dry ink toner and to know the type of toner that is widely used in the market, it is necessary to do a series of methods. Magnetic susceptibility methods [8], X-Ray Difraction and X-Ray Fluorescence.…”