Three dimensionalupper crustal structure of the eastern Zagros (Iran) using local tomography
Nearly one-third of the shortening in Iran plateau due to Arabia-Eurasia convergence is accommodated in the Zagros fold and thrust belt, which is seismically one of the most active regions among the continental collision zones in the world. Deploying a temporary seismic network in the north of Bandar Abbas in Hormozgan Province, which consisted of 32 three-component seismograph stations operating for a duration of about 3.5 months, provided appropriate data for studying the upper crustal structure of the easternmost Zagros by usingLocal Earthquake Tomography. Three dimensional velocity model obtained the conversion of P-wave arrival times indicates southwestward overthrusting of the lower crust of northern parts, supporting active underthrusting of the Arabian plate beneath Central Iran in the easternmost Zagros. A very low velocity zone is also observed in the eastern part of the study area that could be associated with the Zendan-Minab-Palami fault system.
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