Until recently, the interpretation of data obtained in seismic exploration has been based on comparatively simple representations of the Earth. The most commonly used representation for the Earth has been a set of thick layers, each characterized by a single value for the propagation speed of seismic waves. During the last several years, more complicated representations in the form of thin layers with vertical velocity gradients, as well as homogeneous thin layers have been considered.
KeywordsSeismic Wave Actual Medium Realistic Representation Seismic Wave Propagation Seismic Exploration
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