Receiver structure beneath the Chinese Digital Seismograph Network (CDSN) stations: Preliminary results. Scientific report No. 1

Technical Report · Thu Apr 30 04:00:00 EDT 1992

OSTI ID:7121288

Mangino, S; Ebel, J

This report provides preliminary results of an investigation of the crust and upper-mantle seismic velocity structure beneath the China Digital Seismograph Network (CDSN). Receiver functions obtained from over 100 teleseismic events were stacked by common back-azimuth and epicentral distance and inverted for the velocity structure beneath 5 CDSN stations. ne inversion results show that stations HIA and BJI have well constrained crustal models of about 40-km thickness with gradational Mohos. At WMQ there is evidence for shallow dipping structure and the inversion results indicate a smooth positive gradient in the crust with a transitional crust-mantle boundary. Model estimates for KMI and LZH are poorly constrained by the data analyzed thus far. Synthetic seismograms of 5 CDSN crustal models for the Soviet JVE nuclear test indicate that the receiver structure most strongly affects the radial component of the recorded P wave. Seismology, Crustal Structure Upper Mantle Structure, China, Receiver Function, Regional phases, Teleseismic.

• Research Organization: Boston Coll., Weston, MA (United States). Weston Observatory
• OSTI ID: 7121288
• Report Number(s): AD-A-256681/8/XAB; CNN: F19628-91-K-0009
• Country of Publication: United States
• Language: English

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