Depths of ground-water and other subsurface features indicated by Earth-resistivity surveys
| Autor: | O. H. Gish |
|---|---|
| Rok vydání: | 1928 |
| Předmět: |
Atmospheric Science
Ecology Paleontology Soil Science Commutator (electric) Mineralogy Forestry Geophysics Aquatic Science Oceanography law.invention Course (navigation) Space and Planetary Science Geochemistry and Petrology law Electrical resistivity and conductivity Earth and Planetary Sciences (miscellaneous) Geology Groundwater Earth (classical element) Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of Geophysical Research. 33:140 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/te033i003p00140 |
| Popis: | In the course of the earth-resistivity surveys made as part of the program for earth-current investigations by the Department of Terrestrial Magnetism of the Carnegie Institution of Washington, it has become evident that the method used is capable of locating and ascertaining the depth of various subsurface geological features. In the paper presented the general features of the method previously described elsewhere were briefly reviewed. The manner of adjusting and using the specially designed commutator so as to obtain measurements under steady current-conditions; that is, obtaining the potential measurements over a portion of the “square-wave” cycle well removed from the make and the break, was explained. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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