Abstract: We collect waveform data of worldwide teleseismic events by 17 broadband seismic stations from the Inner Mongolia Autonomous Region Digital Seismic Network and 36 temporary seismic stations distributed in northern margin of the western part of North China Craton and adjacent areas during different periods of 2009—2016 and 2010—2011, respectively. Using the receiver functions of H-κ method, we calculated the crustal thickness and Poisson's ratio beneath 53 stations constructed on bedrocks. We present the crustal thickness and Poisson's ratio distribution characteristic of the northern margin of the western part of North China Craton and adjacent areas based on a compilation of 81 seismic stations for receiver function H-κ analysis published in the literature and our results. Comprehensively analyzing the fine crustal constrains distribution information in this study lead to the following conclusions. The crustal thickness of the study area gradually increases from east to west overall. The thickest crust is found in the Alxa block located in the western part of North China Craton (～48.7±3.0 km). The average crustal Poisson's ratio is about 0.27. The highest Poisson's ratio is found in the Hetao rift, indicating high ambient crustal temperatures or wide-spread intra-crustal melting. There is significant difference of crustal thickness and Poisson's ratio on the different tectonic units, they may reflect that those areas experience distinct processes of crustal modification in the tectonic evolution process of the North China Craton.

Key words: Crustal thickness, Receiver function, Poisson&apos, s ratio, Ordos block, North China Craton