On the nature of regional seismic phases-I. Phase representations for Pn, Pg, Sn, Lg
نویسندگان
چکیده
منابع مشابه
Statistical Analysis of Irregular Wave-Guide Influences on Regional Seismic Discriminants in China: Additional Results for Pn/Sn, Pn/Lg,
Reducing scatter in measurements of regional-phase amplitude ratios is desirable for seismic discrimination applications and also provides insight into crustal structure controls on energy partitioning of regional seismic waves. Our previous analysis (Fan and Lay, 1998) of the regional seismic discriminant, Pg/Lg, indicated that variations in crustal structure cause path-specific fluctuations o...
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The blockage of the Lg wave by crustal barriers such as continental margins and graben structures has long been recognized as providing a very useful tool for mapping large-scale lateral crustal variations along the propagation path. Numerical simulation of Lg-wave propagation in complex anelastic media using the pseudospectral method provides insight into the nature of the propagation process ...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1989
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1989.tb02281.x