The International journal of analytical and experimental modal analysis ISSN NO:0886-9367 The Mapping of Geological Features of Narpala Mandal, Anantapur District, AP, India Using Remote Sensing and GIS Techniques ˆPradeep Kumar. B1, Raghu Babu. K1*, Krupavathi. C1, Rajasekhar. M1, Siva Kumar Reddy. P1, Ramachandra. M1, Narayana Swamy. B1, Ravi Kumar. P1 1Department of Geology, Yogi Vemana University, Kadapa, Andhra Pradesh, India. *Corresponding author:
[email protected] Abstract - Good geological maps are essential not only for exploration and exploitation of natural resources but also for a variety of other purposes such as location of dams, tunneling, power plants, alignment of highway lines etc. even in areas where geological mapping has been done in great detail, Remote Sensing (RS) techniques have contributed information to unknown such as identification of new faults and fractures. More or less all-digital, topographic mapping and most mapping projects required the digital maps prepared by using RS and Geographical Information System (GIS) techniques with geospatial database. In this paper we have prepared Geology, Geomorphology, Lineament, Lineament density, Slope and Land Use/Land Cover maps by using RS and GIS techniques. For preparing this maps various LANDSAT data and DEM data have been collected and processed by various techniques adopted and using ERDAS and GIS software’s. Keywords: Geological, Exploration, Topographic, Structural mapping, Land Use/Land Cover. 1. Introduction The most understandable usage of geological map is to indicate the nature of the near – surface bedrock. This is obviously of great importance to civil engineers recommended by the geologist to guide on the excavation of road cuttings or on the siting of bridges, to geographers studying the use of land and to companies exploring minerals.