CAJ | 학술논문

本文通过对沧州地区12个台站记录，从2008年7月至2010年7月记录的258远震事件进行接收函数计算，应用共转换点叠加成像方法对沧州地区地壳结构进行了研究。利用切向接收函数成像获得了沧州地区的结晶基底埋深。结果显示沧东断裂两侧基底埋深存在剧烈变化，断裂西侧基底埋深较浅，大约为2 km，断裂东侧基底埋深最深约8 km。径向接收函数成像结果显示沧东断裂西侧的沧县隆起上地壳厚度约为20～23 km，地壳厚度约34 km，断裂东侧的黄骅坳陷上地壳厚度约为25～26 km，地壳厚度约32 km，断裂两侧地壳厚度相差2 km。本文获取的结果与前人通过人工地震剖面以及层析成像获取的沧州地区地壳结构具有很好的一致性，还具有更高的分辨率。
본문통과대창주지구12개태참기록，종2008년7월지2010년7월기록적258원진사건진행접수함수계산，응용공전환점첩가성상방법대창주지구지각결구진행료연구。이용절향접수함수성상획득료창주지구적결정기저매심。결과현시창동단렬량측기저매심존재극렬변화，단렬서측기저매심교천，대약위2 km，단렬동측기저매심최심약8 km。경향접수함수성상결과현시창동단렬서측적창현륭기상지각후도약위20～23 km，지각후도약34 km，단렬동측적황화요함상지각후도약위25～26 km，지각후도약32 km，단렬량측지각후도상차2 km。본문획취적결과여전인통과인공지진부면이급층석성상획취적창주지구지각결구구유흔호적일치성，환구유경고적분변솔。
We calculated the receiver functions of 258 teleseismic events recorded by 12 portable seismic stations during July 2008 to July 2010 in Cangzhou region and imaged the crustal structure by using the common conversion point stacking method. The transverse RF image revealed that the basement depth. There is an abrupt change of the basement depth across the Cangdong Fault, the basement depth is~2 km in the west of the Fault and changed to 8 km in the east of the fault. The radial RF image revealed that the thickness of the upper crust and Moho depth. The upper crustal thickness and Moho depth are 20~23 km and 34 km in the west of the Cangdong fault. The upper crustal thickness and Moho depth are 25~25 km and 32 km in the east of the Cangdong fault. The crustal structure with the better resolution in this study is quite consistent with the results obtained by the deep seismic sounding profiles and tomography.