A detailed experimental investigation of the gabbro-eclogite transformation in several
basalts has been carried out. More than 200 runs at temperatures between 900 and 1,250° …

Overwhelming evidence suggests that a simple two‐layered crust is no longer sufficient to
explain available geophysical observations. New travel time and amplitude data obtained in …

Some of the significant results, techniques, and ideas that have emerged from explosion
studies of the continental crust between 1960 and 1965 are brought together and evaluated …

Transects produced by the North American Continent-Ocean Transect Program (Speed and
others, 1982; US Geodynamics Committee, 1989) describe the complex orogen formed …

Geophysical experiments on the eastern seaboard of Canada show that the structure of the
crust is complicated and that there seems to be a close relation between the surface geology …

The hypothesis that the M discontinuity is a phase change corresponding to the transition
between basalt and eclogite offers a promising explanation for the occurrence of great …

Seismological experiments at a location near Lomond in southern Alberta yielded
consistently good reflection quality as the shot‐to‐detector distance was increased from 1.5 …

An account of some aspects of marine geology and marine geophysics, comprehensible to
those at an early stage in their study of geology and to scientists who are not specialists in …

An approximate harmonic solution has been derived for head waves from a linear velocity
transition layer in a liquid medium of uniform density. When the frequency of wave motion is …

Velocity amplitude spectra were determined for 24 of the 78 explosions fired in Lake
Superior in 1963. Many of these spectra display low‐frequency peaks close to theoretical …