Study of Crustal Thickness and Poisson's Ratio Distribution Beneath Seismic Stations in Shanxi Province by Teleseismic Receiver Function

Receiver functions are calculated by using teleseismic records of Shanxi Digital Seismic Network and crustal thickness and Poisson's Ratio in Shanxi area are obtained by stacking receiver functions with H-Kappa technique. The result shows that crustal thickness in Shanxi province exists obvious difference. The average crustal thickness in Shanxi is about 39 km. The difference of crustal thickness between south part and north part has a higher value. The crust beneath ANZ(Anze) station is the thinnest (36 km), biggest thickness(43 km) appears beneath SHZ station. Poisson ratio in Shanxi Province is about 0.24-0.31, which is consistent with the Poisson's ratio of the world. The crustal thickness of Shanxi area is positively correlated to the topography. Meanwhile, the crustal thickness of Shanxi area is negatively correlated to Poisson's ratio.