shadow zone

(redirected from Shadow Zone (album))

shadow zone

[′shad·ō ‚zōn]
(acoustics)
A region, usually under water or in the atmosphere, which sound waves will not reach, according to ray acoustics.
(geophysics)
The zone, between 103 and 143° from the epicenter of an earthquake, in which direct seismic waves do not arrive because of refraction and absorption by the earth's core.