Structure of the Northern Los Angeles Basins Revealed in Teleseismic Receiver Functions from Short‐Term Nodal Seismic Arrays
Structure of the Northern Los Angeles Basins Revealed in Teleseismic Receiver Functions from Short‐Term Nodal Seismic Arrays
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DOI：
10.1785/0220180071
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发表时间：
2018-08
影响因子：
3.3
通讯作者：
Guibao Liu;P. Persaud;R. Clayton
中科院分区：
文献类型：
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作者：
Guibao Liu;P. Persaud;R. Clayton
我们使用一个35天的节点数据集记录沿着三个配置文件在北方盆地的洛杉矶，加州，映射的深度和形状的沉积物-基底界面，并确定可能的深断层偏移计算的接收函数。结果表明，莫霍界面，基底底部，和中间沉积层。也有迹象表明，沿红山和雷蒙德断层走向的中地壳偏移沿着。结果进行了比较，从附近的永久宽带站和1993年洛杉矶地区地震实验（LARSE）的配置文件的接收器功能。这些图像显示，密集部署的节点型传感器可以用来表征嘈杂的城市环境中的盆地结构。电子补充：玻利维亚事件中圣加布里埃尔盆地节点阵列记录的数据示例。
We use teleseismic receiver functions computed from an ∼35 day nodal dataset recorded along three profiles in the northern basins of Los Angeles, California, to map the depth and shape of the sediment–basement interface and to identify possible deep fault offsets. The results show the Moho discontinuity, the bottom of the basement, and intermediary sedimentary layers. There are also indications of midcrustal offsets along strike of the Red Hill and Raymond faults. The results are compared with receiver functions from nearby permanent broadband stations and the 1993 Los Angeles Region Seismic Experiment (LARSE) profile. The images show that dense deployments of node-type sensors can be used to characterize basin structure in a noisy urban environment. Electronic Supplement: Example of the data recorded by the nodal array in the San Gabriel basin for the Bolivia event.