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Apparent earth conductivity over coal mines as estimated from through-the-earth electromagnetic transmission tests
  • Published Date:
    1984
  • Language:
    English
Filetype[PDF-976.98 KB]


  • Supporting Files:
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  2. Apparent Earth Conductivity Over Coal Mines as Estimated From Through-the- Earth Electromagnetic Transmission Tests - RI 8869
    Personal Author:
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    Published:
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    Description:
    Electromagnetic narrow-band signals were transmitted through the earth at 27 coal mines located throughout the United States. From those Bureau of Mines tests, apparent earth conductivity values were derived based upon a homogeneous half-space model ...
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    Tuscaloosa Research Center (United States. Bureau of Mines)
    Published:
    1985
    Series:
    Open file report (United States. Bureau of Mines) ; 1985-127
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    "In its role of providing technical assistance to the mining industry, the Bureau of Mines' Tuscaloosa Research Center has conducted research to develop trapped miner location systems which would aid in locating miners trapped by underground mining d...
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    March 1972
    Series:
    Open file report (United States. Bureau of Mines) ; 1973-16
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