宁夏银川基准台下方地壳厚度研究  

The Analysis on Moho Depth beneath Ningxia Yinchuan Station

作　　者：许晓庆[1,2] 马禾青[1] 马小军[1] 张淑贤[1] 

机构地区：[1]宁夏回族自治区地震局,银川750001 [2]中国科学技术大学地球和空间科学学院,合肥230026

出　　处：《华北地震科学》2015年第1期35-38,共4页North China Earthquake Sciences

基　　金：地震行业科研专项"鄂尔多斯地块西缘重力观测与地震数据收集整理"(201208009)

摘　　要：提取宁夏银川台远震P波接收函数,计算了台站下方地壳厚度和波速比,得出银川台下方地壳厚度为48.0km,体波波速比为1.72。分析认为银川台下方地壳分层结构明显,地壳厚度起伏剧烈,具有较明显的各向异性特征。The teleseismic receiver functions of Ningxia Yinchuan seismic station are calculated with two different Gauss filter factors using H-Kappa stacking method. The results show that the Moho depth beneath the seismic station is 48.0 km and Vp to Vs ratio in there is 1.72. Carring out more analysis, we found the crust in the studied area has complex stratification structures with obvious anisotropic characteristic and crust thickness changes dramatically.

关 键 词：接收函数 地壳厚度 各向异性 

分 类 号：P315.24[天文地球—地震学]