Displacement Transfer Zone

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Displacement Transfer Zone

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Displacement Transfer Zone:
Displacement transfer zones facilitate the transfer of strain between normal and strike-slip faults. Intersections between strike-slip faults in the Walker Lane and N- to NNE-striking normal faults commonly host geothermal systems, focused along the normal faults proximal to their dilational intersections with nearby strike-slip faults.
Other definitions:Wikipedia Reegle


Dilational fault intersection between oblique-slip normal faults.[1]

Faulds uses these terms (fault intersection and a subset classification - displacement transfer zone) as structural controls found in the Basin and Range province of the US.

Fault intersections between normal faults and transversely oriented strike-slip or oblique-slip faults account for 22% of the Basin & Range structures known to host geothermal systems as of 2011. Multiple minor faults in these areas create connections between major structures, allowing fluids to flow through highly fractured dilational quadrants.[1]

Displacement transfer zones represent a major subset of fault intersection types, hosting 5% of the known geothermal systems in the Basin & Range. Intersections between strike-slip faults in the Walker Lane and N- to NNE-striking normal faults commonly host geothermal systems, focused along the normal faults proximal to their dilational intersections with nearby dextral faults.[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
Amedee Geothermal Area Walker-Lane Transition Zone Extensional Tectonics Mesozoic granite; granodiorite
Long Valley Caldera Geothermal Area Walker-Lane Transition Zone Extensional Tectonics Quaternary Bishop Tuff, Metamorphic Basement 38 MW38,000 kW
38,000,000 W
38,000,000,000 mW
0.038 GW
3.8e-5 TW
513.15 K240 °C
464 °F
923.67 °R
North Brawley Geothermal Area Gulf of California Rift Zone Strike-Slip Arkosic and quartz dominated sandstones 50 MW50,000 kW
50,000,000 W
50,000,000,000 mW
0.05 GW
5.0e-5 TW
539.15 K266 °C
510.8 °F
970.47 °R
Wendel Geothermal Area Walker-Lane Transition Zone Geothermal Region Extensional Tectonics Mesozoic Granite, Granodiorite 3.8 MW3,800 kW
3,800,000 W
3,800,000,000 mW
0.0038 GW
3.8e-6 TW
413.15 K140 °C
284 °F
743.67 °R

References

  1. 1.0 1.1 1.2 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