Akademik Veri Yönetim Sistemi
Structural Geology and Tectonics, Springer Nature, ss.187-205, 2026
This chapter is a review of crustal deformation studies by using global navigation satellite system (GNSS) measurements in western India. GNSS velocity field in India-fixed reference frame (IREF) are reviewed and modeled by using well-known technique known as Singular Spectrum Analysis (SSA). The change in GNSS velocity field points out a considerable N-S contractional deformation near the location of the 2001 Bhuj earthquake. Moreover, the GNSS sites horizontal velocity trend at the northern part of western India is totally opposite to the velocity trend of southern part of western India, indicating an extensional deformation. The SSA-based estimated GNSS principal strain rate displays less or more participation of contraction perpendicular to the lineament or fault systems in the region. The extensional rates in the available fault system are noted in a negligible amount except a very less amount near the epicenter. The estimated rotation rates at each GNSS from EW to NS direction are very low and statically insignificant. This indicates that the southern peninsula interior region moves as a rigid block.