• 责任者：Hong Dequan (Anhui Earthquake Administration ; Hefei 230031 ; China) ; Wang Xingzhou
• 刊名：Seismology and Geology
• 出版年：2013
• 卷期：35(4)
• 关键词：接收函数 ; receiver functions ; 地壳 ; crust ; 安徽 ; Anhui Province
• 页码：p.853-863
• 图表：5 illus., 1 table, 26 refs.
• 分类号：0400
• issnNo：ISSN0253-4967
• isbnNo：CN11-2192/P

     In this paper,we calculate receiver functions of body wave under the 18 stations in Anhui Province from 3-component digital waveform data of teleseismic earthquake events and obtain the thickness and Vp/Vs ratio in the crust of this area through H-Kappa stacking.Our result is consistent with previous studies.Combining the tectonics data and our result,we consider that Anhui area can be divided into three areas according to the crustal thickness.The first one is the Dabie Shan area in the southwest of Anhui Province,the crustal thickness is about 35 to 38km; the second one is the southeast of Anhui Province,the crustal thickness is about 34km; and the last one is middle and northeast of Anhui,the crustal thickness is about 31 to 32km.The Vp/VS ratio in Anhui area does not vary obviously spatially,but there are three stations LAN,SCH and JSA,under which the crustal velocity ratio is obviously higher,up to 1.79,1.80 and 1.80,respectively.In fact,the station LAN and SCH are located at the border between the North China block and the Yangtze block,and the JSA station is on the Tan-Lu Fault zone and beside the Sulu UHP metamorphic belt.Therefore,we infer that the high crustal velocity ratio under LAN,SCH and JSA stations are probably attributable to the deep large faults beneath the stations.