• 责任者：Zhang Guangcheng (Institute of Geophysics ; China Earthquake Administration ; Beijing 100081 ; China) ; Wu Qingju
• 刊名：Chinese Journal of Geophysics
• 出版年：2013
• 卷期：56(12)
• 关键词：接收函数 ; receiver functions ; 地壳结构 ; crustal structure ; 东北地区 ; Northeast China
• 页码：p.4084-4094
• 图表：7 illus., 38 refs.
• 分类号：0400
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

     We use 824 tele-seismic records from 116 temporary stations and 121 national earthquake network stations in NE China to calculate the receiver functions and got the information of crustal thickness and Poisson＇s ratio by CCP stacking and H-K stacking methods. The thicknesses resulted from the two methods have very good consistency. The results show that crustal thickness beneath northeast China has an obvious west-east difference. The crustal thickness beneath the stations west of the gravity lineament and in the Jiamusi massif in NE China is between 36 km and 41 km. And from the gravity lineament to east in the Xingmeng geosynclines fold belt the crustal thickness thins to 34 km from 36 km. In the north side, east side and south side of Songliao Basin, the thickness of crust is thinner, about 29~34 kin. CCP profiles show that the Tanlu Faults cut deep into the crust, the Moho shows an apparentdislocation beneath the Dunhua-Mishan fault. The result of Poisson shows that the values of Poisson ratio are relatively high beneath most  ratio from H-K stacking stations in NE China, it is about 0.24-0.29. Near Changbai mountain, eastern Songliao Basin, eastern Yanshan bold belt and northern part of Grater Khingan Mountain, the value of Poissonrs ratio reached 0.27-0.30. Maybe upwelling occurred, making the content of iron and magnesium components increasing in the lower crust.