Major Normal Fault

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Major Normal Fault

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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. www.williamsclass.com/SixthScienceWork/FoldFault/FoldFaultGeologyNotes.htm

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]

Examples

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

CSV
Geothermal
Resource
Area
Geothermal
Region
Tectonic
Setting
Host
Rock
Age
Host
Rock
Lithology
Mean
Capacity
Mean
Reservoir
Temp
Akita Geothermal Field Northeast Honshu Arc Subduction Zone Tertiary Dacite 88.3 MW88,300 kW
88,300,000 W
88,300,000,000 mW
0.0883 GW
8.83e-5 TW
548.15 K275 °C
527 °F
986.67 °R
Aluto-Langano Geothermal Area East African Rift System - Ethiopian Rift Valley Rift Zone Basalt 7.5 MW7,500 kW
7,500,000 W
7,500,000,000 mW
0.0075 GW
7.5e-6 TW
561.15 K288 °C
550.4 °F
1,010.07 °R
Bouillante Geothermal Area Lesser Antilles Volcanic Arc Subduction Zone Chlorite 15 MW15,000 kW
15,000,000 W
15,000,000,000 mW
0.015 GW
1.5e-5 TW
528.15 K255 °C
491 °F
950.67 °R
Bruchsal Geothermal Area Upper Rhine Valley Rift Zone Triassic Sandstone 0.6 MW600 kW
600,000 W
600,000,000 mW
6.0e-4 GW
6.0e-7 TW
413.15 K140 °C
284 °F
743.67 °R
Dixie Valley Geothermal Area Central Nevada Seismic Zone Geothermal Region Extensional Tectonics Jurassic Basalt 62 MW62,000 kW
62,000,000 W
62,000,000,000 mW
0.062 GW
6.2e-5 TW
504.15 K231 °C
447.8 °F
907.47 °R
Fang Geothermal Area Thailand Geothermal Region Granite 0.3 MW300 kW
300,000 W
300,000,000 mW
3.0e-4 GW
3.0e-7 TW
418.15 K145 °C
293 °F
752.67 °R
Fukushima Geothermal Area Northeast Honshu Arc Subduction Zone 65 MW65,000 kW
65,000,000 W
65,000,000,000 mW
0.065 GW
6.5e-5 TW
579.15 K306 °C
582.8 °F
1,042.47 °R
Gunun-Salak Geothermal Area Sunda Volcanic Arc Subduction Zone 345 MW345,000 kW
345,000,000 W
345,000,000,000 mW
0.345 GW
3.45e-4 TW
548.15 K275 °C
527 °F
986.67 °R
Java - Darajat Geothermal Area Sunda Volcanic Arc Subduction Zone Volcanics 255 MW255,000 kW
255,000,000 W
255,000,000,000 mW
0.255 GW
2.55e-4 TW
518.15 K245 °C
473 °F
932.67 °R
Java - Kamojang Geothermal Area Sunda Volcanic Arc Subduction Zone 200 MW200,000 kW
200,000,000 W
200,000,000,000 mW
0.2 GW
2.0e-4 TW
518.15 K245 °C
473 °F
932.67 °R
Java-Wayang Windu Geothermal Area Sunda Volcanic Arc Subduction Zone 227 MW227,000 kW
227,000,000 W
227,000,000,000 mW
0.227 GW
2.27e-4 TW
558.15 K285 °C
545 °F
1,004.67 °R
Landau Geothermal Area Upper Rhine Valley Rift Zone 3.6 MW3,600 kW
3,600,000 W
3,600,000,000 mW
0.0036 GW
3.6e-6 TW
413.15 K140 °C
284 °F
743.67 °R
Ogiri Geothermal Area Ryuku Arc Subduction Zone Quaternary Andesite 30 MW30,000 kW
30,000,000 W
30,000,000,000 mW
0.03 GW
3.0e-5 TW
533.15 K260 °C
500 °F
959.67 °R
Salavatli Geothermal Area Aegean-West Anatolian Extensional Region Extensional Tectonics 58 MW58,000 kW
58,000,000 W
58,000,000,000 mW
0.058 GW
5.8e-5 TW
444.15 K171 °C
339.8 °F
799.47 °R

References

  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