ANALYSIS OF MAGNETIC SUSPECTIBILITY AND MINERAL COMPOSITION OF RUBBER PLANTATION SOILS IN MUARA ENIM DISTRICT Mardia Ulfa
Sriwijaya University
Abstract
In this research, we will review the comparison of the physical properties of magnetic minerals on land that is still active and empty land using the rock magnetism method to determine the value of magnetic susceptibility and the composition of magnetic minerals on rubber land as well as characterization using the method.X-Ray Diffraction(XRD) to determine the type and composition of minerals contained in the sample.The aim of this research is to determine the types of minerals and the sustainability value of the two lands so that the level of land pollution and the comparison of the two lands can be known..The research was carried out from May-December 2022 at Gunung Raja Village, Rambang Dangku District, Muara Enim Regency. Measuring the susceptibility value using toolsBartington Magnetic Susceptibility MeterMS2B by runningMultisus soft-ware,used depth variations with 10 points and 50 research samples . Susceptibility valuelow frequency(χ-lf) the maximum is found in sample P6 while the minimum value is found in sample P2 with a depth variation of 0-10 cm, namely 11.2 x10-8km3/kg-1, with an average value of 42.89 x10-8km3/kg-1, kg . Susceptibility value 322 x10-8km3/kg-1, is included in the level III category with moderate pollution. The highest susceptibility value is on the first land that is still active, while the lowest value is on the empty land. Based on the distribution of X^s susceptibility valuesfd(%) it is known that the dominant research sample is in the range of values 0 - 10.0, which means it contains between 10% and 75% super paramagnetic grains, which are a mixture of fine and coarse super paramagnetic grains. silica SiO2, The XRD results in this research contained three mineral contents, namely silicon d oxide or hematite or Fe2O3, and magnesium oxide or MgO.
Keywords: X-Ray Diffraction (XRD), Bartington Magnetic Susceptibility Meter MS2B, vacant land, land active, soil pollution.
