CRUSTAL STRUCTURE OF OAXACA, MEXICO, FROM SEISMIC REFRACTION MEASUREMENTS.
Por:
Valdes Carlos M., Mooney W.D., Singh S.K., Meyer R.P., Lomnitz C., Luetgert J.H., Helsley C.E., Lewis B.T.R., Mena M.
Publicada:
1 ene 1986
Resumen:
Seismic refraction and gravity data have been analyzed to obtain a model of the compressional-wave velocity structure of the ocean-to-continent transition in the State of Oaxaca in southwestern Mexico. The crust has been modeled with three layers, with velocities of 4. 3 to 4. 6, 5. 0 to 5. 7, and 6. 85 to 7. 0 km/sec, each with positive velocity gradient. The crust thins to 10 km at the coast near Pinotepa Nacional, where Precambrian metamorphic rocks are exposed 45 km from the mid-America trench.
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