高校地质学报2011，Vol.17Issue(4)：562-568,7.
相位加权叠加方法在探测鄂尔多斯东南缘地壳结构中的应用
An Application of Phase-Weighted Stacks to Study the Crustal Structures in the Southeastern Margin of the Ordos Block
摘要
Abstract
In order to study the crustal structures in the southeastern margin of the Ordos Block, a portable broadband seismograph array with 22 stations was deployed in the study area. Instead of the linear stacking, a non-linear stacking technique named the phase-weighted stack (PWS) was used to stack the radial receiver functions for each station. The results show that the depth of Moho in the study area gradually decreases towards the southeast. The Moho discontinuity in different parts of the study area exhibits different features: the depth of Moho in the Ordos block is between 42 and 38 km; the Moho in Weihe-Shanxi graben bulges up by about 3 km; In the Xionger-Funiu Mountains, the depth of Moho is betweem 35 and 33 km; the Moho in the Hehuai basin appears to be complex. To conclude, the PWS Method is useful to enhance the S/N (signal/noise) ratio and determine the depth of Moho beneath the stations in the study area.关键词
接收函数/相位加权叠加/H-κ叠加/共转换点叠加/地壳结构Key words
receiver function/phase-weighted stack/H-k stack/common conversion point stack/crustal structure分类
天文与地球科学引用本文复制引用
陆一锋,徐鸣洁,王良书,米宁,李华,于大勇..相位加权叠加方法在探测鄂尔多斯东南缘地壳结构中的应用[J].高校地质学报,2011,17(4):562-568,7.基金项目
国家自然科学重点基金项目(40634021)资助 （40634021）
