Changes in crustal resistivity near Palmdale, California

The largest change in apparent resistivity observed across a 3.3 km galvanic resistivity array during the first year of operation was 6%. This 6% decrease is strongly correlated with several months of continuous rain. Fluctuations in apparent resistivity appear to be larger after than before the rai...

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Bibliographic Details
Published inGeophysical research letters Vol. 5; no. 11; pp. 928 - 930
Main Authors Searls, Craig, Poehls, Kenneth A., Jackson, David D., Wescott, Eugene M.
Format Journal Article
LanguageEnglish
Published Blackwell Publishing Ltd 01.11.1978
Subjects
Arrays
Correlation
Electrical resistivity
Fluctuation
Geophysics
Marine
Rain
Seismicity
Surface layer
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Summary:The largest change in apparent resistivity observed across a 3.3 km galvanic resistivity array during the first year of operation was 6%. This 6% decrease is strongly correlated with several months of continuous rain. Fluctuations in apparent resistivity appear to be larger after than before the rain. This is believed to be the result of a newly formed surface layer of high conductivity. No correlation is observed between local seismicity and resistivity.
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ISSN:0094-8276
1944-8007
DOI:10.1029/GL005i011p00928