تغييرات ژرفاي موهو و نسبت VP/VS در شمال باختري زاگرس (منطقه كرمانشاه) با استفاده ازتوابع گيرنده دورلرز

Moho Depth Variations and Vp/Vs Ratio in Northwest of Zagros (Kermanshah Region) using Teleseismic Receiver Functions

Characterization of the detailed structure of the crust and upper mantel is an important continuing goal of geophysical studies. Teleseismic body waveforms have been used to infer crust and upper mantel structure. In this study we use teleseismic receiver function method to determine the crustal thickness and Vp/Vs ratio under Kermanshah network in north-west of Zagros using teleseismic data (30°5.5) which have been recorded at five short-period three component stations (2003-2007). The differential travel time between the incident P wave and P to S converted wave (delay time) is used for computation of crustal thickness. Moho depth is not sensitive to crustal