Variations in stable- isotope ratios of ground waters in seismically active regions of California
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Abstract
Measurements of D and 18O concentrations of ground waters in seismically active regions are potentially useful in earthquake prediction and in elucidating mechanisms operative during earthquakes. Principles of this method are discussed and some preliminary data regarding a magnitude 5.7 earthquake at the Oroville Dam in 1975 and a series of events near San Juan Bautista in 1980 are presented to support the utility of such measurements. After earthquakes, the D content of nearby ground waters increased by several permil while the 18O content remained constant. This increase implies that H2O may have either decomposed or reacted to form molecular H2 at depth. It is emphasized that many areas must be investigated for these effects in order to find a sufficient number of "sensitive" water wells and springs to permit a truly effective program of earthquake research.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Variations in stable- isotope ratios of ground waters in seismically active regions of California |
| Series title | Geophysical Research Letters |
| DOI | 10.1029/GL008i005p00429 |
| Volume | 8 |
| Issue | 5 |
| Year Published | 1981 |
| Language | English |
| Publisher | American Geophysical Union |
| Contributing office(s) | California Water Science Center |
| Description | 4 p. |
| First page | 429 |
| Last page | 432 |
| Google Analytic Metrics | Metrics page |