Studi Geotektonik Endapan Bijih Besi Berdasarkan Data Geokimia pada Daerah Kadong-kadong Kabupaten Luwu, Provinsi Sulawesi Selatan
DOI:
https://doi.org/10.33096/jjwdve49Keywords:
Gatectonic, Iron Ore, XRF, ICP-OES, GCDKitAbstract
The element iron (Fe) is found in almost all types of rocks, and its presence in large quantities has economic value related to geological processes involving specific mineralization zoning. Iron ore with economic value is usually in the form of magnetite (Fe3O4), hematite (Fe2O3), limonite (Fe2O3.H2O), and siderite (FeCO3). Iron ore deposits can be formed through both primary and secondary processes. Primary deposits are formed through magmatic, contact, or hydrothermal mechanisms, while secondary deposits are formed through processes of sedimentation, residue, and oxidation. The aim of this study is: To determine the affinity of magma in iron ore deposits in the Kadong-kadong Area, Luwu Regency, South Sulawesi Province. Knowing the geotectonic order of iron ore deposits in the Kadong-kadong Area, Luwu Regency, South Sulawesi Province. This research was carried out through direct sampling in the field to obtain representative data. The analysis process in the laboratory utilizes ICP MS/OES and XRF methods to identify the composition of the elements in the samples taken. The data from the analysis was then processed using GCDKit software. The use of this software allows comprehensive data processing so that it can produce accurate interpretations and support the achievement of research objectives. This analysis is expected to provide an in-depth picture of the geochemical characteristics of the analyzed samples. The chemical composition of the study area shows that the types of rocks are andesite and basaltic andesite. Based on geochemical data, the study shows the affinity of magma, namely the tholeiitic series. It reflects the magma of the mantle undergoing high depletion (DM) and the typical characteristics of the early volcanic arc. The research location is in a convergent environment, volcanic arc, precisely in the forearc and intra-arc. Forearc & intra-arc: Magmatic processes in the front arc or in the arc.Downloads
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