| 摘要 |
A method of seismic prospecting involves making seismic records utilizing a seismic source in substantially continuous operation and motion, and in which a first signal representative of the time-variant and space-variant waveform radiated from the moving seismic source is derived directly therefrom, while a second signal is derived indirectly therefrom via a detector array, and after filtering these signals if necessary the first signal is divided into segments which are each cross-correlated and matched with their counterpart(s) in a segment of the second signal having the same starting time as the first-signal segment but a duration extended beyond that of the first-signal segment by a period representing the maximum seismic travel time of interest, the time-shift between the first-signal segment and its counterpart(s) in the second-signal segment being detected and recorded. Apparatus for performing this method of seismic prospecting is also provided, which consists essentially of a continuous seismic source, a transducer responsive directly to that source, a detector array, communication linkages and a recording station.
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