Downloaded from http://sp.lyellcollection.org/ by guest on March 29, 2017 Morphotectonic expression of geological structures in the eastern part of the South East Deccan Volcanic Province (around Nanded, Maharashtra, India) R. D. KAPLAY1*, MD. BABAR2, SOUMYAJIT MUKHERJEE3 & T. VIJAY KUMAR1 1School of Earth Sciences, S.R.T.M.University, Nanded-431606, Maharashtra, India 2Department of Geology, Dnyanopasak College, Parbhani-431401, Maharashtra, India 3Department of Earth Sciences, Indian Institute of Technology, Bombay, Powai, Mumbai-400076, Maharashtra, India *Correspondence:
[email protected] Abstract: We geomorphometrically characterize the tectonics near the microseismically active Nanded region, Maharashtra, India. We used the geomorphic indices of active tectonics in 32 sub-basins to evaluate the relationship between tectonics and basin morphology. The area is divided into three different zones (1, 2 and 3). Microseismicity is concentrated along the NW– SE-trending Urvashi Ghat Lineament. The anomalous drainages and lineaments are also confined to the region where microseismicity is associated with thrust. Spatial analysis of the elongation ratio and hypsometric integral of the basins provide valuable information on their distribution and relationship to the structure and tectonics. This study suggests neotectonic control on the evo- lution of the basins close to Nanded City. We have focused on the eastern part of the Rajaguru & Kale (1985) and Rajaguru et al. Deccan Volcanic Province (DVP) (Fig. 1a) around (1993) studied fluvial systems in the upland areas the Nanded and Parbhani districts, Maharashtra, of the Deccan Trap, from the western coastal area India. The Nanded region has been experiencing and the Western Ghat. Kale & Shejwalkar (2008) micro-earthquake activity since November 2006 carried out geomorphological analyses in the West- (Table 1).