Geophysical abstracts

Geophysical abstracts

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... energy to the ground are created when the explosive is suspended near the water surface over deep parts of the river. ... The wiring diagram of the improved instrument is given. ... The first practical electromagnetic seismometer, or geophone, was developed by Karcher and used successfully to locate salt domes in 1926.

Title:Geophysical abstracts
Author:United States. Bureau of Mines, Geological Survey (U.S.)
Publisher: - 1961


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