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Analysis Study Research Paper | Geology | India | Volume 12 Issue 9, September 2023 | Popularity: 5.2 / 10

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Longitudinal Profiles and Geomorphic Indices Analysis on Tectonic Evidence of Fluvial Form, Process and Landform Deformation of Doodhganga, SW Kashmir Valley, NW Himalayas

Tariq Ah Tahir, Dr Pragya Sourabh

Abstract: The drainage pattern and morphology of the doodhganga's piedmont zone are blatant signs of the active orogenic moments that was created by the most recent collision of the Indian and Eurasian plates. Since the Valley is surrounded by young, folded mountain ranges that are currently being uplifted, its geomorphic history is remarkably recent. The Valley has supported sub-aerial erosion and deposition at the same time; therefore the two processes are inextricably juxtaposed in the surface characteristics of the valley. Over the Pleistocene, there have been alternating periods of glacial and fluvial activity, complicating the already complex situation. The Doodhganga basin consists of zones of active tectonics drained by dhoohganga river and its tributaries. The present study is conducted for the different tributaries and sub-tributaries of Doodhganga which bear the imprint of active tectonics of the region, the most active thrust belt of Himalayas. Data and further fieldwork revealed that recent catastrophism had a continuous impact on the area. To assess the strength of the tectonic evidence, various tectonic indices were calculated. This includes the fractal dimension (FD), the hypsometric integral (HI), the basin asymmetry factor (AF), the basin shape index (Bs), the stream-length gradient (SL), the mountain front sinuosity (Smf), and the ratio of valley-floor width to valley height (Vf). The output of these indices is utilised to create a three-class active tectonics index that is displayed on a map. Then, the places with high tectonic index values are compared to the field evidence of the deformed landscape.

Keywords: tectonic evidence; ?uvial form; ?uvial process; landform deformation

Edition: Volume 12 Issue 9, September 2023

Pages: 1361 - 1368

DOI: https://www.doi.org/10.21275/SR23916203221

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