The elastic constants of the models used in this paper to trace the rays for P waves are the following:
Layer 1 | Layer 2 | Layer 3 | Layer 4 | |
Figure 4 | c_{11}= 9894 | |||
(center | c_{33}= 9005 | |||
and | c_{44}= 4949 | |||
right) | c_{13}= 5655 | |||
Figure 5 | c_{11}= 9005 | c_{11}= 9894 | c_{11}= 12545 | c_{11}= 9005 |
c_{33}= 9005 | c_{33}= 9005 | c_{33}= 10845 | c_{33}= 9005 | |
c_{44}= 4949 | c_{44}= 4949 | c_{44}= 5968 | c_{44}= 4949 | |
c_{13}= 5655 | c_{13}= 5655 | c_{13}= 6805 | c_{13}= 5655 |
In all cases, . has units of velocity squared (ft/s)^{2}.