Abstract
The response of a large geothermal system to magmatic resurgence was analyzed by a survey of soil gas radon and elemental mercury at 600 sites in the silicic Long Valley Caldera, California. The broad geochemical anomaly over the caldera has superimposed on it a small zone of pronounced radon enrichment and mercury depletion coincident with the surface projection of a postulated dike of rising magma. Soil gas geochemistry studies can complement traditional geophysical and geodetical methods in the evaluation of potential volcanic eruption hazards.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 551-553 |
| Number of pages | 3 |
| Journal | Science |
| Volume | 229 |
| Issue number | 4713 |
| DOIs | |
| State | Published - 1985 |
| Externally published | Yes |
ASJC Scopus subject areas
- General