Seismology. Number 9. Crustal Structure Beneath the Gulf of Maine.
LAMONT GEOLOGICAL OBSERVATORY PALISADES NY
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Seismic refraction profiles obtained by ship-to-shore recording in the Gulf of Maine, and the velocity distribution in the upper part of the earths crust, inferred from these profiles, are described. The surface layer has a velocity of 5.34 kmsec, and extends down to a depth of 5.1 km at Falmouth, Maine. Beneath, a layer with a velocity of 6.25 kmsec is found to slope upward to the east at 3 degrees over a distance of at least 80 km. A layer with a velocity of 7.5 kmsec appears at a depth of 16.7 km at Falmouth, Maine. The unusual submarine topography beneath the course of the shot boat is illustrated. Author
- Physical and Dynamic Oceanography