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seismic refraction

Saltos de línea: seis|mic re|frac¦tion

Definición de seismic refraction en inglés:

sustantivo

[mass noun] Geology
The refraction of elastic waves on passing between formations of rock having different seismic velocities.
Example sentences
  • Gravity and seismic refraction studies have shown that segments tend to have the thickest crust (about 8 km at slow-spreading ridges) at their centres and thin crust at their ends.
  • Large amounts of seismic refraction and reflection data have greatly improved knowledge of the crustal structure along the outer Voring Basin and the Voring Marginal High.
  • It extends upwards from a depth of about 6 km, at which depth Precambrian crystalline basement is predicted from seismic refraction studies.

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