Abstract:

This paper is based on the Rayleigh surface wave seismogram along earth's great circle across SPA and SBA seismic stations. We computed a phase velocity dispersion of Rayleigh surface wave and obtained lithosphere structure of 200km path below two stations. Our result shows that crust thickness of transantarctic mountains is 45 km. In depth of 55~75 km there are clear layers of low velocity. It displays deep fused magma.