Long Valley Caldera - Mammoth Mountain

 

Projects

Diffuse CO₂ measurements

isobutane as a tracer for thermal groundwater flow

Long term trends in the composition of helium isotopes

The role of groundwater and gas dynamics in the deformation patterns of the caldera and resurgent dome

Continuous monitoring of pressure and temperature in selected wells

Publications

Farrar, C.D., Evans, W.C., Venezky, D.Y., Hurwitz, S., Oliver, L.K., 2007, Boiling water at Hot Creek – the dangerous and dynamic thermal springs in California's Long Valley Caldera: U.S. Geological Survey Fact Sheet 2007-3045, http://pubs.usgs.gov/fs/2007/3045/.

Bergfeld, D., Evans, W. C., Howle, J. F., and Farrar, C. D., 2006, Carbon dioxide emissions from vegetation-kill zones around the resurgent dome of Long Valley caldera, eastern California, USA: Journal of Volcanology and Geothermal Research, 152 (1-2) 140-156. abstract

Evans, W. C., Lorenson, T. D., Sorey, M. L., and Bergfeld, D., 2004a, Transport of injected isobutane by thermal groundwater in Long Valley caldera, California, USA, in Wanty, R. B. and Seal II, R. R. eds: Water-Rock Interaction-11, Saratoga Springs, 2004, p. 125-129.

Evans, W. C., Sorey, M. L., Kennedy, B. M., Stonestrom, D. A., Rogie, J. D., and Shuster, D. L., 2001, High CO₂ emissions through porous media: transport mechanisms and implications for flux measurement and fractionation: Chemical Geology, v. 177, p. 15-29. abstract

Cook, A. C., Hainsworth, L. J., Sorey, M. L., Evans, W. C., and Southon, J.R., 2001, Radiocarbon studies of plant leaves and tree rings from Mammoth Mountain, CA: a long-term record of magmatic CO₂ release: Chemical Geology, v. 177, p. 117- 131. abstract

Evans, W. C., Sorey, M. L., Michel, R. L., Cook, A. C., Kennedy, B. M., and Busenberg, E., 2001, Tracing magmatic carbon in groundwater at Big Springs, Long Valley caldera, USA, in Cidu, R., ed.: Water-Rock Interaction-10, Cagliari, 2001, p. 803-806.

Evans, W. C., Sorey, M. L., Cook, A. C., Kennedy, B. M., Shuster, D. L., Colvard, E. L., White, L. D., and Huebner, M. A., 2002, Tracing and quantifying magmatic carbon discharge in cold groundwaters: Lessons learned from Mammoth Mountain, USA: Journal of Volcanology and Geothermal Research, v. 114, p. 291-312. abstract

Evans, W. C., Lorenson, T. D., Sorey, M. L., and Bergfeld, D., 2004, Transport of injected isobutane by thermal groundwater in Long Valley caldera, California, USA, in Wanty, R. B. and Seal II, R. R. eds: Water-Rock Interaction-11, Saratoga Springs, 2004, p. 125-129.

 

links

Long Valley Volcano Observatory

 

Data files

CH-10b Weed RTD string master data file

CH-10B -Plot of temperature from January 2008 - August 2009 - Weed instrument

CH-10B - Plot comparing between Weed Temperature and mannual logging on August 14, 2009

35-28 - Omega RTD string master data file

35-28 - Plots of temperature from March 2008 - August 2009 - Omega instrument

 

Contact: Bill Evans, Deb Bergfeld