吕睿, 宫猛, 孟小琴, 董春丽, 刘素珍. 利用远震接收函数反演山西地区台站下方的地壳厚度及泊松比[J]. 华北地震科学, 2016, 34(1): 59-64. DOI: 10.3969/j.issn.1003-1375.2016.01.010
引用本文: 吕睿, 宫猛, 孟小琴, 董春丽, 刘素珍. 利用远震接收函数反演山西地区台站下方的地壳厚度及泊松比[J]. 华北地震科学, 2016, 34(1): 59-64. DOI: 10.3969/j.issn.1003-1375.2016.01.010
LYU Rui, GONG Meng, MENG Xiao-qin, DONG Chun-li, LIU Su-zhen. Study of Crustal Thickness and Poisson's Ratio Distribution Beneath Seismic Stations in Shanxi Province by Teleseismic Receiver Function[J]. North China Earthquake Sciences, 2016, 34(1): 59-64. DOI: 10.3969/j.issn.1003-1375.2016.01.010
Citation: LYU Rui, GONG Meng, MENG Xiao-qin, DONG Chun-li, LIU Su-zhen. Study of Crustal Thickness and Poisson's Ratio Distribution Beneath Seismic Stations in Shanxi Province by Teleseismic Receiver Function[J]. North China Earthquake Sciences, 2016, 34(1): 59-64. DOI: 10.3969/j.issn.1003-1375.2016.01.010

利用远震接收函数反演山西地区台站下方的地壳厚度及泊松比

Study of Crustal Thickness and Poisson's Ratio Distribution Beneath Seismic Stations in Shanxi Province by Teleseismic Receiver Function

  • 摘要: 利用2008-2013年山西数字地震台网远震宽频带记录波形资料,运用H-Kappa叠加方法得到各台站下方的地壳厚度和波速比。研究结果表明,山西地区地壳厚度存在明显的差异。研究区内地壳平均厚度约39 km,南北地壳厚度变化幅度较大,其中SHZ(上皇庄台)地壳厚度最大为43 km,ANZ(安泽台)地壳厚度最小为36 km,南北两端差异达7 km。泊松比值在0.24~0.31之间变化,与全球的泊松比估计值相当。山西的地壳厚度与地表地形存在着明显正相关,而地壳厚度和泊松比则呈现负相关的关系。

     

    Abstract: Receiver functions are calculated by using teleseismic records of Shanxi Digital Seismic Network and crustal thickness and Poisson's Ratio in Shanxi area are obtained by stacking receiver functions with H-Kappa technique. The result shows that crustal thickness in Shanxi province exists obvious difference. The average crustal thickness in Shanxi is about 39 km. The difference of crustal thickness between south part and north part has a higher value. The crust beneath ANZ(Anze) station is the thinnest (36 km), biggest thickness(43 km) appears beneath SHZ station. Poisson ratio in Shanxi Province is about 0.24-0.31, which is consistent with the Poisson's ratio of the world. The crustal thickness of Shanxi area is positively correlated to the topography. Meanwhile, the crustal thickness of Shanxi area is negatively correlated to Poisson's ratio.

     

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