First- and second-order geothermal project survey, Imperial County, California, October 1973--April 1974. Preliminary report
Technical Report
·
OSTI ID:7257594
This report includes the background of the Imperial Valley Subsidence Detection Program, an outline of work done during the 1973-74 survey, and a preliminary evaluation of new data. Previous surveys indicate that much of the Imperial Valley is tectonically active with some areas showing a cumulative vertical movement from several inches to over one foot during a 40 year period. This includes movement along faults with ongoing seismic activity. This survey was organized because of possible subsidence problems. Second-order level nets were established and permanent benchmarks were set in areas with potential geothermal development. The incomplete data review indicates that between the 1971-72 and 1973-74 surveys, no appreciable vertical movement had occurred in the Imperial Valley except near the south end of the Salton Sea.
- Research Organization:
- California Div. of Oil and Gas, Sacramento (USA)
- OSTI ID:
- 7257594
- Report Number(s):
- PB-261511
- Country of Publication:
- United States
- Language:
- English
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