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Euler Pole Parameter Determination of Tectonic Blocks in N-E Iran Region by Using GPS Velocities
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Y. Djamour   |
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Abstract: (4746 Views) |
| In order to study crustal deformation and slip rates on active faults, there are different models. One of them is Block Model which includes the effects of block rotation and elastic strain accumulation consistent with a simple model of the earthquake cycle. Geodetic observations, especially Global Positioning System measurements, of inter-seismic deformation provide constraints on the partitioning of fault slip across plate boundary zones, the spatial distribution of both elastic and inelastic strain accumulation, and the nature of the fault system evolution. Block motions, fault-slip rates, elastic coupling, and internal block strain rates are determined simultaneously using a linear estimator with constraints from both geodetically determined velocity fields and geologic fault-slip rate estimates. In this research, we are focusing on Block motions in N-E Iran area which indicate Euler pole parameters determination. Clockwise block rate rotations from 0.1 to 6.7 degrees per Myr with standard deviation ±0.02 to ±1.7 degrees per Myr were obtained for different blocks considered in this study |
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| Keywords: tectonic plates, block modeling, inter-seismic velocity, GPS velocity, slip rate |
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Full-Text [PDF 312 kb]
(1032 Downloads)
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Type of Study: Research |
Subject:
Geo&Hydro
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