Scientific Value of Coring the Proposed Southern Appalachian Research Drill Hole (1987) / Chapter Skim
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SEISMIC VELOCITY DETERMINATION
SEISMIC VELOCITY DETERMINATION
Pages 36-37
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From page 36... ...
The proposed 10 km deep drill hole that will intersect observed reflectors and known structures offers an excellent opportunity for calibration of seismic reflection and refraction experiments in the southern Appalachians through determination of average compressional velocities of tectonostratigraphic units on the basis of laboratory measurements on cores. Removal of samples from confining pressure and differential stress conditions at depth may induce changes, such as opening of microcracks and 36
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From page 37... ...
Anisotropy of the metamorphic rocks of the Appalachian orogen will affect seismic velocity determinations. In order to measure velocities in directions other than the vertical, oriented sidewall samples may be needed.
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