Modeling-Computer Simulations At Long Valley Caldera Geothermal Area (Battaglia, Et Al., 2003)

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Exploration Activity: Modeling-Computer Simulations At Long Valley Caldera Geothermal Area (Battaglia, Et Al., 2003)

Exploration Activity Details
Location Long Valley Caldera Geothermal Area
Exploration Technique Modeling-Computer Simulations
Activity Date - 2003

Usefulness useful
DOE-funding Unknown

 
Exploration Basis
Integrated modeling of deformation, microgravity, and seismic data was conducted in 2003 to investigate the cause of recent uplift of the resurgent dome.
 
Notes
Modeling of deformation and microgravity data suggests that there are two sources of subsurface inflation beneath the caldera, one between 7-10 km depth below the resurgent dome and a deeper source ~15 km below the caldera's south moat (Battaglia et al., 2003a,b). Data suggest that the shallower source is of intermediate density between magma and aqueous fluid, and so uplift of the resurgent dome may relate to pressure buildup associated with magmatic brine or gas sourced from deep beneath the caldera's south moat (Langbein, 2003; Hill et al., 2003). These ascending fluids would pool at or below the transition between brittle and ductile deformation conditions, inferred to occur at 6-7 km depth below the resurgent dome based on the depth of the apparent bottom of the seismogenic zone (Hill, 1992).


Additional References