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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 116 (1978), S. 1274-1283 
    ISSN: 1420-9136
    Keywords: Seismology ; Surface-wave dispersion ; Higher mode surface waves ; Italy, phase vel. of surface waves
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract A new method is presented for the determination of higher mode dispersion over small distances, using two stations. From an intermediate focus earthquake it has been possible to measure the dispersion of the first and second Rayleigh modes in the period range 25–35 sec and 25–70 sec respectively. Using the almost linear array of Italian long-period stations TRI, BLZ, OLB an estimate of the average errors is also made.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 116 (1978), S. 1299-1306 
    ISSN: 1420-9136
    Keywords: Seismology ; Rayleigh wave dispersion ; Phase velocity of Rayleigh waves ; German Dem. Rep., Rayleigh waves
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The phase velocity curve of Rayleigh-waves is determined for a profile crossing the area of GDR from south to north. Two different methods of seismogram processing are used which are discussed in detail. The phase velocities found are checked for compatibility. An inversion of a common phase velocity curve is done by using hedgehog procedure.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 116 (1978), S. 1262-1273 
    ISSN: 1420-9136
    Keywords: Seismology ; African Rift ; P-wave velocity beneath Africa ; Upper mantle structure for Africa
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract AP-wave velocity model for the upper mantle beneath eastern and southern Africa is proposed. The top 250 km of the model is characterized by relatively low velocities similar to those deduced for the upper mantle beneath the western United States of America. At greater depths, the velocities gradually change to normal mantle values.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 116 (1978), S. 198-211 
    ISSN: 1420-9136
    Keywords: Seismology ; theoretical ; Cagniard's technique ; Elastic waves produced by shearing traction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The displacement produced in a semi-infinite, homogeneous, isotropic elastic medium by the application of shearing traction over a circular portion of the half-space has been evaluated in exact form by Cagniard's Technique (Cagniard, 1962;Gakenheimer andMiklowitz, 1969).
    Type of Medium: Electronic Resource
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