Karcher, John Clarence

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Karcher, John Clarence

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This article has been reviewed by the following Topic Editor: Peter Saundry

John Clarence Karcher (1894-1978), an American engineer working for the United States Bureau of Standards who developed the "seismic reflection" method of seismic exploration, independently of German scientist Ludger Mintrop. The seismograph, an instrument that measures the intensity of blast-induced underground vibrations, would become a revolutionary tool in oil exploration. In 1921, on a farm outside of Oklahoma City, Oklahoma, Karcher tested the seismograph in the first seismic survey and determined that it could detect subsurface structures capable of holding oil. With renowned oil man Lee Everette DeGolyer, he opened the world's first well ever to be successfully drilled into a structure located by reflection seismography in 1928.

Further Reading
John Clarence Karcher (Handbook of Texas Online)
Seismograph History (Oklahoma Historical Society)

Citation

Cutler Cleveland (Lead Author);Peter Saundry (Topic Editor) "Karcher, John Clarence". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth January 17, 2009; Last revised Date January 17, 2009; Retrieved February 9, 2012 <http://www.eoearth.org/article/Karcher,_John_Clarence>

The Author

Cutler Cleveland Editor-in-Chief The Encyclopedia of Earth Cutler J. Cleveland is the founding Editor-in-Chief of the Encyclopedia of Earth. Dr. Cleveland is currently a Professor in the Department of Geography and Environment at Boston University, with joint appointments in the Center for Energy and Environmental Studies and the Pardee Center for the Study of the Longer Range Future. He also is a Senior Fellow at the National Council for Science and the Environment in Washington D.C. Dr. Cleveland is als ... (Full Bio)

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