S.A. Aliyan, A.S. Bratanegara, H.M. Ihsan, A.J. Astari, L. Somantri
The Cipatujah area is part of the Southern Mountains of West Java which has diverse and unevenly distributed lithology. The lithology that dominates the Cipatujah and surrounding areas originate from the volcanic activities such as lava, volcanic breccias, tuffs, and intrusions. While the sedimentary rocks that compose them are limestone and sandstone rocks. The lithology that dominates the southern region is carbonate sedimentary rocks, which are represented by sandstone units. In the northern part, the lithologies are dominated by deposition results volcanic activity consists of various materials originating from andesitic lava units that extend to the east of the research area, while the volcanic breccia deposited from north to the west of the research area. There is a tuff unit layer above the volcanic breccia to the south. In the eastern area deposited carbonate rock units that form the karst landscape. Lithology characterization and determination of rock units in the Cipatujah area were carried out using image processing techniques from color composite bands from Landsat-8 (OLI) data. Geological analysis using SWIR-2 (7), SWIR-1 (6), and blue (2) composite bands and lithology using near-infrared (5) composites SWIR-1 (6), and SWIR-2 (7) bands. Then the analysis results are examined with geological data from the mapping that has been done before. Approach to band composite analysis by verifying geological data taken directly to help improve the identification and validation of better and more measured lithological distribution. © 2022 Institute of Physics Publishing. All rights reserved.
Universitas Pendidikan Indonesia, Indonesia
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