Desert Peak A Blind Reservoir:
Desert Peak A Blind Reservoir Stepover in Rhyolite Ridge fault zone
Increased fracture density provides avenue for fluids
EGS
Structural Controls:
Structural Controls Stepovers in normal faults
Fault intersections
Critically stressed areas near recent fault ruptures Dixie Valley Steamboat, Reno
Recipes for Productive Geothermal Fields:
Recipes for Productive Geothermal Fields Dilational strain
Normal fault zones
Pull-aparts in strike-slip fault zones
High fracture density
Geothermometry thresholds
Geochemical fingerprints Fly Ranch Geyser
Way Forward:
Way Forward Further characterization of productive fields
Structural
GPS geodetic
InSAR
Remote sensing
Microearthquake
Goal toward enhancing production at these fields
3-D modeling of productive fields
Integrated structural and hydrologic modeling
Geometry and kinematics
State of stress
Groundwater budget
Challenges
Targeting blind systems
Determining likely spacing of productive fields
Carson Sink
Why is Nevada in Hot Water?:
Why is Nevada in Hot Water? Shear Strain (Blewitt, 2003) Dextral shear in Walker Lane transferred to WNW extension in northwest part of Great Basin
Accentuates Basin-Range extension, enhancing deep circulation of fluids
Geothermal belts = Loci of strain transfer