Blind Geothermal System

From Open Energy Information


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Blind Geothermal System:
An area with a geothermal heat source, but no modern surface manifestations.
Other definitions:Wikipedia Reegle


Many geothermal areas show no signs of geothermal activity at the surface if the heated water is too far below or no conduits to the surface are available. An area of geothermal activity with no surface features is referred to as a “blind geothermal system.”




Examples

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CSV
Geothermal
Resource
Area
Geothermal
Region
Control
Structure
Host
Rock
Age
Host
Rock
Lithology
Mean
Capacity
Mean
Reservoir
Temp
Blue Mountain Geothermal AreaNorthwest Basin and Range Geothermal RegionFault Intersection
Intrusion Margins and Associated Fractures
TriassicMetasedimentary49.5 MW
49,500 kW
49,500,000 W
49,500,000,000 mW
0.0495 GW
4.95e-5 TW
470.15 K
197 °C
386.6 °F
846.27 °R
Desert Peak Geothermal AreaNorthwest Basin and Range Geothermal RegionStepover or Relay Ramp in Normal Fault ZonesMesozoicgreenstone23 MW
23,000 kW
23,000,000 W
23,000,000,000 mW
0.023 GW
2.3e-5 TW
481.15 K
208 °C
406.4 °F
866.07 °R
Heber Geothermal AreaGulf of California Rift ZonePull-Apart in Strike-Slip Fault Zonesandstone180 MW
180,000 kW
180,000,000 W
180,000,000,000 mW
0.18 GW
1.8e-4 TW
447.15 K
174 °C
345.2 °F
804.87 °R
Kilauea East Rift Geothermal AreaHawaii Geothermal RegionFissure Swarms
Intrusion Margins and Associated Fractures
QuaternaryTholeiitic Basalt47 MW
47,000 kW
47,000,000 W
47,000,000,000 mW
0.047 GW
4.7e-5 TW
575.15 K
302 °C
575.6 °F
1,035.27 °R
Lightning Dock Geothermal AreaSouthern Basin and Range Geothermal RegionFault IntersectionPaleozoic carbonate rocks and late Tertiary volcanic rocks4.4 MW
4,400 kW
4,400,000 W
4,400,000,000 mW
0.0044 GW
4.4e-6 TW
443.15 K
170 °C
338 °F
797.67 °R
North Brawley Geothermal AreaGulf of California Rift ZoneDisplacement Transfer Zone
Fault Intersection
Arkosic and quartz dominated sandstones50 MW
50,000 kW
50,000,000 W
50,000,000,000 mW
0.05 GW
5.0e-5 TW
539.15 K
266 °C
510.8 °F
970.47 °R
Raft River Geothermal AreaNorthern Basin and Range Geothermal RegionFault Intersection1- Archean; 2-Proterozoic1- quartz monzonite; 2-schist; quartzite13 MW
13,000 kW
13,000,000 W
13,000,000,000 mW
0.013 GW
1.3e-5 TW
468.15 K
195 °C
383 °F
842.67 °R
Rye Patch Geothermal AreaNorthwest Basin and Range Geothermal Region12.5 MW
12,500 kW
12,500,000 W
12,500,000,000 mW
0.0125 GW
1.25e-5 TW
486.15 K
213 °C
415.4 °F
875.07 °R
Stillwater Geothermal AreaNorthwest Basin and Range Geothermal RegionAccommodation ZoneQuaternarysandstone47.2 MW
47,200 kW
47,200,000 W
47,200,000,000 mW
0.0472 GW
4.72e-5 TW
447.15 K
174 °C
345.2 °F
804.87 °R

References