Lineament Mapping Using Shaded Relief Images Derived from Digital Elevation Model

Home » Journal of Geosciences Research (JGSR) » JGSR Contents » JGSR 2019 Vol.4, No.2 » Lineament Mapping Using Shaded Relief Images Derived from Digital Elevation Model

B.S. Manjare* and A.M. Pophare

Department of Geology, RTM Nagpur University, Nagpur-440 001, India

*E-mail: yogesh_manjare1@rediffmail.com

Abstract

Lineament analysis of the area around Salbardi fault and adjoining region of Betul District, Madhya Pradesh and Amravati District of Maharashtra was carried out using shaded relief i.e. images derived from digital elevation model (DEM). Arc GIS software (version 10.3) has been used for extracting eight hill-shaded image of Sun angles 0°, 45°, 90°, 135° and 180°, 225°, 270°, 315°. Shaded images of sun angles were combined as one hill-shaded image. Major lineament trends from earlier study are ENE-WSW and NNE-SSW, while combined lineament image of multi-directional Sun angle (180°, 225°, 270°, 315°) and multi-directional Sun angle (0°, 45°, 90°, 135°) are NE-SW and NW- SE. The extracted lineaments were statistically analysed to determine lengths and frequency in order to generate rose diagram and lineament map.

Keywords: Lineaments, Shaded relief images, SRTM, DEMs, Salbardi fault, Betul District, Madhya Pradesh, Amravati District Maharashtra

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