A. Fatehi - Storming Media

Frequency Dependence of Q in the Crust and Upper Mantle of China and Surrounding Regions, from Computations of Lg Q and the Attenuation of High-Frequency P-Waves

MAY 2006

45 pages

Authors: B. J. Mitchell; A. L. Jemberie; F. Leyton; R. Chu; A. Fatehi; SAINT LOUIS UNIV MO DEPT OF EARTH AND ATMOSPHERIC SCIENCES

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Starting with fundamental-mode Rayleigh-wave attenuation coefficient values predicted by previously determined frequency-independent model of shear-wave Q we have obtained frequency-dependent Q models that explain both the measured values of yr as well as of Lg coda Q and its frequency dependence at 1 Hz (Q and n respectively) for China and some adjacent regions. The process combines trial-and-error selection of a model for the depth distribution of the frequency parameter ...