The phase velocity method has been applied to the problem of the determination of the crust
and upper mantle under the western Alpine crest and in the Alpine foreland to the north. An …

Rayleigh wave phase velocities were obtained in the period range 12.5–83.3 s using the
almost linear array of long period seismic stations installed at Bari (BAI), Grosseto (GSO) …

Seismograms from vertical-component, long-period instruments of the World-Wide Standard
Seismographic Network (WWSSN) within the United States have been analysed to …

Rayleigh wave phase velocities have been measured to periods in excess of 160 sec for a
number of profiles, worldwide and for many different geologic structures. It is found that at …

In a study of variation of the compressional velocity with depth in the C region of the upper
mantle in western North America, we determined apparent velocities of first arrivals across …

abstract Measurements of the slope of the travel-time curve have been made on a group of
167 events in the distance range 27°-90° along an azimuth of 300°-320° from the LASA …

This review is concerned with the variation of compressional and shear‐wave velocities with
depth in the earth's upper mantle. Information about the compressional velocities is obtained …

A unified two-dimensional lithospheric model has been derived for the P-wave velocity
structure beneath the Alpine Longitudinal Profile (ALP'75) main line by making new phase …

Variational calculus methods are applied to the problem of dispersion of mantle Rayleigh
waves. In the present paper we have worked two models. One is Gutenberg's model with a …

Observations of seismic waves generated by explosions in Lake Superior during the Early
Rise Experiment have been made westward to a range of 2600 km. A phase filtering …