Report on the reconnaissance resistivity survey in the East Mesa area, Imperial County, California for U. S. Department of the Interior, Bureau of Reclamation
A section of notes on geothermal exploration using the resistivity method precedes the main body of the paper. Field data from the Broadlands Area of New Zealand, Java, and the Imperial Valley, California are included. The reconnaissance resistivity survey recently completed in the East Mesa Area confirmed that a broad zone of low resistivities at depth extends through the area in a NNW direction. The interpretation of the resistivity data and the location of the resistivity lows at depth is much less definite in the Imperial Valley than it is in other areas of geothermal exploration. This is due to the extremely low background level of resistivities. The low resistivities in the Imperial Valley are due to the high porosity of the sediments and the high salinity of the solutions contained within the rock. The expected decrease in resistivity due to elevated temperature is much more difficult to detect in this environment. Edges of the zones of low resistivities have been delineated in almost all directions. (JGB)
- Research Organization:
- McPhar Geophysics Ltd. (USA)
- OSTI ID:
- 5075831
- Report Number(s):
- NP-22856
- Resource Relation:
- Other Information: Portions of document are illegible
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
58 GEOSCIENCES
EAST MESA GEOTHERMAL FIELD
ELECTRICAL SURVEYS
CONFIGURATION
DIAGRAMS
DIPOLES
ELECTRIC CONDUCTIVITY
ELECTRODES
ELECTROMAGNETIC SURVEYS
GEOPHYSICAL SURVEYS
IMPERIAL VALLEY
MAPS
MATHEMATICAL MODELS
CALIFORNIA
ELECTRICAL PROPERTIES
GEOTHERMAL FIELDS
MULTIPOLES
NORTH AMERICA
PHYSICAL PROPERTIES
USA
WESTERN REGION
Geothermal Legacy
150301* - Geothermal Exploration & Exploration Technology- Geophysical Techniques & Surveys
580203 - Geophysics- Geophysical Survey Methods- (1980-1989)