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Tectonic map of India showing location of GPS stations (blue star) and major faults and lineaments in and around Indian plate (Dasgupta et al. 2000). RLL Rajkot Lathi Lineament, LSL Luni-Sukri Lineament, ABF Allah Bund Fault, KMF Kutch Mainland Fault, MF Marginal Fault, CJL Chambal Jamnagar Lineament, WCL West Coast Lineament, WCF West Coast Fault, MDF Mahendragarh–Dehradun Fault, DHR Delhi–Hardwar Ridge, GBF Great Boundary Fault, FR Faizabad Ridge, WPF West Patna Fault, EPF East Patna Fault, MSR Munger Saharsa Ridge, EHZ Eocene Hinge Zone, DF Dhauki Fault, NNF Narmada North Fault, NSF Narmada South Fault, TF Tapti Fault, GF Gavilgarh Fault, CISZ Central Indian Shear Zone, GVF Godavari Valley Fault, KF Kaddam Fault, KGF Kinnerasani Godavari Fault, KLF Kolleru Lake Fault, LF Latur Fault, UGF Upper Godavari Fault, CKL Chandragutti Kurnool Lineament, VL Vedavati Lineament, CF Chiplun Fault
Source publication
We have analyzed 18 permanent GPS stations in and around the Indian plate to understand inter- and intraplate deformation patterns of infinitesimal strain variations. Differential deformation pattern along and across strike of the Himalaya shows westward decrease in crustal shortening with strong influence of the local geology. Subduction rate towa...
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Citations
... The GPS velocities in the study area were collected from 13 published papers during a literature review (Ader et al., 2012;Banerjee et al., 2008;Bettinelli et al., 2006;Chen et al., 2004aChen et al., , 2004bFeldl and Bilham, 2006;Gahalaut et al., 2013;Gan et al., 2007;Jade et al., 2004;Liang et al., 2013;Ponraj et al., 2011;Som and Singh, 2016;Zhang et al., 2004). Velocities with uncertainties of greater than 3 mm yr −1 were eliminated to weaken the influence of observational noise on the simulation results (McCaffrey et al., 2007). ...
Morphometry and active tectonics of the Konkan coast, western India
The Indian western coast is petroliferous, and therefore draws attention from both
academicians and industrial experts. In this work, geomorphic indices have been calculated to decode neotectonics of the Konkan onshore region at the India’s west coast. Recent earthquake and Bouguer anomaly data have been used along with the present-day stress data from the World Stress Map project. Gravity modelling was performed in order to gain seismotectonc insight. Morphometry of both linear and spatial scales were performed using the digital elevation model and ArcGIS 10.3 (2014). The b-values were determined using the software ZMAP 7.1 (2021). Maps depicting slopes, aspects and reliefs were created. NW-SE trending lineaments in the Konkan plain guided the major stream courses. Two out of the five
watersheds, watersheds 4 and 5, reveal high tectonic activity, which are landslide-prone and also consist of hot springs. These two watersheds show high b-values (except near the considered rivers’ sources), low Bouguer anomalies and high Hypsometric Indices. Low bvalue also in watershed 3 indicates its stress accumulation. Drilling within and around watersheds 4 and 5 must take care of well-bore stability issue. Over a larger area, gravity trend varies from ~ -80 to 30 mGal. The lineaments diagram deduced from the first vertical derivative technique shows that the structural fabrics mostly trend ~ NW-SE at the west of the Western Ghat Escarpment while it is NE-SW at east. Tilt derivative ratio technique reveals a major NE-SW trend at the west of the WGE and an E-W trend at the eastern part. Structural interpretations based on drill-cores around Koyna and geophysical studies for deep crust will be required for more understanding of the blind (active) structures in the region.
