Abstract
The primary focus of study is on the morphotectonic investigation of the Iring watershed in the Manipur district of Tamenglong. Various morphotectonic factors were studied using data from Aster-DEM, SENTINEL-2 satellite, Survey of India Topographical Maps, and field verification. Drainage Basin Asymmetry (AF), Transverse Topographic Symmetry (T), Basin Elongation Ratio (Eb), and Valley Floor Width to Valley Height ratio (Vf) are a few examples of geomorphic indices that were examined. It was found that the 118.67 km2 basin is tectonically active, as evidenced by structural characteristics and geomorphic parameter values. River stress knick sites are indicated by regions with an SLK index greater than 10. The watershed exhibits asymmetry, as indicated by the average T value of 0.195. Actively incising V-shaped valleys linked to uplift are indicated by Vf values between 0.192 and 0.263. The river is migrating to the western side due to elevation on the eastern side, as shown by the AF result of 47.72%. A basin that is extended and experiencing tectonic activity has a basin elongation ratio of 0.66. The hypsometric curve and hypsometric integral (~50%) indicate that the erosion process in the basin is at its early mature stage. Keywords: Morphotectonic Indices, Active Tectonics, Geology, Morphometry, Drainage Basin, Hypsometry
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