Assessment of Velocity pattern of Lithotectonic Segments of the Kashmir Himalaya: Constraints from GPS measurements

Arjun Singh; G M Bhat; Yudhbir Singh

doi:10.51710/jias.v39i1.235

Authors

Arjun Singh Postgraduate Department of Geology, University of Jammu
G M Bhat Department of Geology, University of Jammu
Yudhbir Singh PG Deptt of Geology, University of Jammu, Jammu

DOI:

https://doi.org/10.51710/jias.v39i1.235

Abstract

We present the estimated horizontal velocities of different lithotectonic segments of the NW Himalaya using data recorded by the eighteen GPS observatories installed in the Jammu and Kashmir region. The data was acquired from 2016 to 2019 and was processed using high precision GAMIT/GLOBK software. With respect to ITRF08 reference frame, the site motion in the region varies from 35 mm/yr to 45 mm/yr towards north-east. The India fixed site motion was estimated using the Ader's Euler pole of rotation. This yielded site motion varying from 2.4 to 11 mm/yr towards south-west and is consistent with the reported plate motion in the Northwest Himalaya. Further study with additional GPS networks is expected to provide precise estimates of deformation in the locked and creeping zones of the main Himalayan thrust in the Northwest Himalaya.

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