Major Normal Fault

From Open Energy Information

Major Normal Fault:
Normal faults are structures in which the hanging wall is down dropped along the fault plane relative to the foot wall. They are the predominant type of structure in extensional tectonic environments, but are commonly encountered in a number of geologic settings.
Other definitions:Wikipedia Reegle

Major normal faults occur where techtonic plates are pulling apart.

Faulds uses this term as a structural control found in the Basin and Range province of the US.

Major range front faults account for 3% of structural controls in the Great Basin. "Although exceptions exist, geothermal systems are relatively rare along the displacement-maxima zones or mid-segments of major normal faults (i.e., major range-front faults), possibly due to both reduced permeability in thick zones of clay gouge and periodic release of stress in major earthquakes."[1]


Want to add an example to this list? Select a Geothermal Resource Area to edit its "Controlling Structures" property using the "Edit with Form" option.

Akita Geothermal FieldNortheast Honshu ArcSubduction ZoneTertiaryDacite88.3 MW
88,300 kW
88,300,000 W
88,300,000,000 mW
0.0883 GW
8.83e-5 TW
548.15 K
275 °C
527 °F
986.67 °R
Aluto-Langano Geothermal AreaEast African Rift System - Ethiopian Rift ValleyRift ZoneBasalt7.5 MW
7,500 kW
7,500,000 W
7,500,000,000 mW
0.0075 GW
7.5e-6 TW
561.15 K
288 °C
550.4 °F
1,010.07 °R
Bouillante Geothermal AreaLesser Antilles Volcanic ArcSubduction ZoneChlorite15 MW
15,000 kW
15,000,000 W
15,000,000,000 mW
0.015 GW
1.5e-5 TW
528.15 K
255 °C
491 °F
950.67 °R
Bruchsal Geothermal AreaUpper Rhine ValleyRift ZoneTriassicSandstone0.6 MW
600 kW
600,000 W
600,000,000 mW
6.0e-4 GW
6.0e-7 TW
413.15 K
140 °C
284 °F
743.67 °R
Dixie Valley Geothermal AreaCentral Nevada Seismic Zone Geothermal RegionExtensional TectonicsJurassicBasalt62 MW
62,000 kW
62,000,000 W
62,000,000,000 mW
0.062 GW
6.2e-5 TW
504.15 K
231 °C
447.8 °F
907.47 °R
Fang Geothermal AreaThailand Geothermal RegionGranite0.3 MW
300 kW
300,000 W
300,000,000 mW
3.0e-4 GW
3.0e-7 TW
418.15 K
145 °C
293 °F
752.67 °R
Fukushima Geothermal AreaNortheast Honshu ArcSubduction Zone65 MW
65,000 kW
65,000,000 W
65,000,000,000 mW
0.065 GW
6.5e-5 TW
579.15 K
306 °C
582.8 °F
1,042.47 °R
Gunun-Salak Geothermal AreaSunda Volcanic ArcSubduction Zone345 MW
345,000 kW
345,000,000 W
345,000,000,000 mW
0.345 GW
3.45e-4 TW
548.15 K
275 °C
527 °F
986.67 °R
Java - Darajat Geothermal AreaSunda Volcanic ArcSubduction ZoneVolcanics255 MW
255,000 kW
255,000,000 W
255,000,000,000 mW
0.255 GW
2.55e-4 TW
518.15 K
245 °C
473 °F
932.67 °R
Java - Kamojang Geothermal AreaSunda Volcanic ArcSubduction Zone200 MW
200,000 kW
200,000,000 W
200,000,000,000 mW
0.2 GW
2.0e-4 TW
518.15 K
245 °C
473 °F
932.67 °R
Java-Wayang Windu Geothermal AreaSunda Volcanic ArcSubduction Zone227 MW
227,000 kW
227,000,000 W
227,000,000,000 mW
0.227 GW
2.27e-4 TW
558.15 K
285 °C
545 °F
1,004.67 °R
Landau Geothermal AreaUpper Rhine ValleyRift Zone3.6 MW
3,600 kW
3,600,000 W
3,600,000,000 mW
0.0036 GW
3.6e-6 TW
413.15 K
140 °C
284 °F
743.67 °R
Ogiri Geothermal AreaRyuku ArcSubduction ZoneQuaternaryAndesite30 MW
30,000 kW
30,000,000 W
30,000,000,000 mW
0.03 GW
3.0e-5 TW
533.15 K
260 °C
500 °F
959.67 °R
Salavatli Geothermal AreaAegean-West Anatolian Extensional RegionExtensional Tectonics58 MW
58,000 kW
58,000,000 W
58,000,000,000 mW
0.058 GW
5.8e-5 TW
444.15 K
171 °C
339.8 °F
799.47 °R


  1. James E. Faulds,Nicholas H. Hinz,Mark F. Coolbaugh,Patricia H. Cashman,Christopher Kratt,Gregory Dering,Joel Edwards,Brett Mayhew,Holly McLachlan. 2011. Assessment of Favorable Structural Settings of Geothermal Systems in the Great Basin, Western USA. In: Transactions. GRC Anual Meeting; 2011/10/23; San Diego, CA. Davis, CA: Geothermal Resources Council; p. 777–783