Deepwell monitoring of strain-sensitive parameters over the greater Southern California uplift
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Abstract
Several wells and springs near active faults in southern California have been monitored for the concentration of Rn, Na+ , K+ , Mg+2 , and Cl- for periods of up to 24 months, in an effort to see if any of these constituents show variations which may be related to seismic activity. Radon might reflect either a change in the rock surface area to pore volume ratio or a change in groundwater flow characteristics. The chemistry may change with a change in the flow characteristics. Only a few of these sites have shown significant fluctuations in either radon or chemistry. Data from cold springs are consistent with a model in which ionic constituents are controlled by reactions in the soil zone and radon concentrations are controlled by flow rates in the aquifer.
Suggested Citation
Henyey, T.L., Teng, T., Hammond, D.E., Sammis, C., 1981, Deepwell monitoring of strain-sensitive parameters over the greater Southern California uplift: U.S. Geological Survey Open-File Report 81-881, 55 p., https://doi.org/10.3133/ofr81881.
ISSN: 2331-1258 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Deepwell monitoring of strain-sensitive parameters over the greater Southern California uplift |
| Series title | Open-File Report |
| Series number | 81-881 |
| DOI | 10.3133/ofr81881 |
| Year Published | 1981 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | 55 p. |
| Country | United States |
| State | California |