We determine the flow of soundwaves in an underground sonic boom through various media and we attempt to determine the shape of the underlying region given timings on soundwave propagation. The speed of sound in various media can be used to confirm geological models near the surface of the earth.
Distances are in meters.
A blast is set off at point O some 600 m below the surface. We set up an axes system and coordinatize our data. This conjecture comes from analysis of geophysical data such as several drill holes, gravitational changes, and surface geology. We label the regions and points. Defend your decision with solid mathematical evidence.