期刊
GEOPHYSICAL RESEARCH LETTERS
卷 43, 期 12, 页码 6234-6242出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2016GL069564
关键词
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资金
- State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences
- National Natural Science Foundation of China [41474105]
- AuScope AuSREM project
We present a way of characterizing the structure beneath a seismic station, by exploiting stacked correlograms of three-component records from teleseismic events. This seismic daylight imaging approach exploits the extraction of reflection and conversion information from teleseismic coda via tensor autocorrelation. The approach is illustrated for a number of Australian stations in a variety of tectonic environments using hundreds of teleseismic events, to extract P and S reflectivity and converted Ps and Sp information. The results show a very good agreement with prior knowledge across Australia. Compared with the classical receiver function, the broader-frequency band of 0.5-4.0 Hz provides additional information on finer-scale structure.
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