Analysis of Soil Geochemical Characteristics on The Topography of South Polombangkeng, Takalar, South Sulawesi
Mashuri (a*), A.M. Imran (b), Ratna Husain (c)

Department of Geology, Faculty of Engineering, Hasanuddin University, Gowa, Indonesia

Abstract

This research aims to analyze the level of chemical weathering and the geochemical content of rocks under topographic conditions in the Baturape Cindako rock formation in South Polombangkeng. This research uses qualitative observation methods in the field. At the same time, geochemical studies are carried out to determine the levels of chemical elements and soil weathering in the research area. The geochemical research method uses X-ray fluorescence (XRF) analysis to determine the chemical elements in the soil, and then the level of chemical weathering is carried out using the Chemical Index of Weathering (CIW) method based on the results of the XRF data. From the analysis results, the highest element content in the research area is SiO2, with a content of 45.54% in the Su^rulangi area, and the highest Fe content is in the Cakura area with a content of 12.04%. The highest level of weathering was at station 3 in the Cakura area, followed by station 1 in the Bontokadatto area with a level of 97.23%, and then a level of weathering at station 2 in the Su^rulangi area.
Based on the results of CIW data analysis, it is known that the highest level of weathering occurs in areas with steeper topography compared to topographic levels with small (flat) slopes.

Keywords: Soil- Geochemistry- Weathering- Chemical Index Weathering- South Polombangkeng

Topic: Geodynamic and subsurface geology