Decoding of tectonics from the topography of the western Himalayas

Marothiya, Tarun (2021) Decoding of tectonics from the topography of the western Himalayas. Masters thesis, Indian Institute of Science Education and Research Kolkata.

Text (MS Dissertation of Tarun Marothiya (16MS097)) 16MS097_Thesis_file.pdf - Submitted Version Restricted to Repository staff only Download (3MB)

Abstract

The Himalayan topography shows a sharp elevation transition from the Lesser to the Greater Himalaya. Previous geophysical and geomorphological studies have attributed this segmented topography to the flat-ramp-flat geometry of the Main Himalayan Thrust. Here, I performed the quantitative topographic analysis to understand the lateral variability of the Main Himalayan Thrust geometry in north-western Himalayas. The Main Himalayan Thrust basal décollement geometry is predicted to be flat-ramp-flat geometry by studying topography. This geometry is further supported by the high magnitude earthquake data distribution on the Ksn maps.

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