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Analysis of mineral types of clay contained in residual soil Kulinjang Area, Enrekang, South Sulawesi Province
Author(s) -
M. F. Arifin,
Hasdinar Umar,
Agustinus Agustinus
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/575/1/012232
Subject(s) - weathering , clay minerals , geology , bedrock , petrography , mineral , topsoil , geochemistry , mineralogy , mining engineering , soil science , soil water , geomorphology , materials science , metallurgy
Kulinjang area is the main access road that connects Enrekang District with Tanah Toraja District. The road cuts through the hills on a steep slope at the west side, where there are several large landslides alongside the road that have been occurred for a while. Meanwhile, on the road surface, irregular cracks occur. This is due to the local deformation of the soil material or bedrock, where one of the influencing factors is the clay mineral content of the soil. However, not all clay minerals have negative impacts. The formation genesis of clay minerals as rock-forming minerals that can determine the engineering properties is very complex so that the type and amount of clay minerals that formed from weathered origin rock and the weathering factors will have a huge impact on the engineering properties. This study entitled Analysis of Mineral Types of Clay Contained in Residual Soil at Kulinjang Area aims to identify the characteristics of mineral types of clay in the residual soil layer, identify the morphology and thickness of the soil and analyze the stratigraphic distribution of the clay minerals. The methods used in this study are consist of taking surface sample data and subsurface sample data by manual drilling (hand auger), analyzing samples using petrography and analyzing the chemical content in the soil by XRD method (X-Ray Diffraction).

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