- Major Normal Fault
- Termination of a Major Normal Fault
- Stepover or Relay Ramp in Normal Fault Zones
- Apex or Salient of Normal Fault
- Fault Intersection
- Accommodation Zone
- Displacement Transfer Zone
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.
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.
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.CSV
|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 MW|
|North Brawley Geothermal Area||Gulf of California Rift Zone||Strike-Slip||Arkosic and quartz dominated sandstones||50 MW|
|Wendel Geothermal Area||Walker-Lane Transition Zone Geothermal Region||Extensional Tectonics||Mesozoic||Granite, Granodiorite||3.8 MW|