TIlE SHEAR-WAVE VELOCITY GRADIENT AT THE BASE OF TIlE MANTLE

@inproceedings{Helmberger2007TIlESV,
  title={TIlE SHEAR-WAVE VELOCITY GRADIENT AT THE BASE OF TIlE MANTLE},
  author={Donald V. Helmberger},
  year={2007}
}
The relative amplitudes and travel have been directed toward obtaining global times of ScS and S phases are utilized to place averages, and the degree of lateral variation in constraints on the shear-wave velocity gradient D" properties remains an open question. above the core-mantle boundary. A previously A conflicting result was found by Mitchell and reported long-period ScSH/SH amplitude ratio Helmberger [1973], who utilized the relative minimum in the distance range 65 ø to 70 ø is shown… CONTINUE READING

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Highly Influenced

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