The crustal structure beneath 9 seismic stations, deployed in north-east of Iran is determined using receiver functions analysis. In this study, 4 stations in the Sabzavar-Taknar zone and 5 stations in the Binalud zone with more than 40 teleseismic earthquakes are used to calculate receiver functions. A crustal structure is suggested for the Sabzavar-Taknar zone with a Moho depth of 46-48km, results present the three main layers: The upper crust has a S wave velocity between 1.9-3.1 km/s and a 11 km thickness. The middle crust has S wave velocity between 3.0-3.5 km/s and an 18 km thickness. The lower crust has S wave velocity between 3.6-4.6 km/s and an 18 km thickness. The crustal structure that is suggested for the Binalud, is a Moho depth of 48-50 km and three main layers for crust: The upper crust has a S wave velocity between 2.4-3.3 km/s and a 10 km thickness. The middle crust has S wave velocity between 3.0-3.5 km/s and a 22 km thickness. The lower crust has S wave velocity between 3.6-4.6 km/s and a 17 km thickness.
)