Resurgent Dome Complex
Topographic Features

Resurgent domes are encountered near the center of many caldera depressions, and form via uplift of the caldera valley floor due to movement in the underlying magma chamber. Resurgent domes do not form via eruption of lava, but from the migration of magma in the subsurface that results in deformation of the overlying crust. Resurgent domes typically host numerous deformation structures that act as conduits for hydrothermal fluids in the shallow crust.
Examples
Want to add an example to this list? Select a Geothermal Resource Area to edit its "Topographic Features" property using the "Edit with Form" option.
Geothermal Resource Area | Geothermal Region | Tectonic Setting | Host Rock Age | Host Rock Lithology | Mean Capacity | Mean Reservoir Temp |
---|---|---|---|---|---|---|
Fenton Hill HDR Geothermal Area | Rio Grande Rift | Rift Zone Extensional Tectonics | Precambrian | Crystalline basement “pCu” (undifferentiated in map units); Biotite Granodiorite (Phase I Reservoir); Gneiss, Schist, Granodiorite, Granite, Metavolcanic Rocks (Phase II Reservoir) | 20 MW20,000 kW <br />20,000,000 W <br />20,000,000,000 mW <br />0.02 GW <br />2.0e-5 TW <br /> | 508.15 K235 °C <br />455 °F <br />914.67 °R <br /> |
Valles Caldera - Redondo Geothermal Area | Rio Grande Rift | Rift Zone Extensional Tectonics | Mississippian-Pennsylvanian; Pleistocene, 1.6 to 1.25 Ma | Limestone-Madera Formation “MIPu”; Rhyolitic tuff-Intracaldera Bandelier Tuff (upper Tshirege “Qbt” and lower Otowi “Qbo” members); Caldera Fill Rhyolite (shallow) | ||
Valles Caldera - Sulphur Springs Geothermal Area | Rio Grande Rift | Rift Zone Extensional Tectonics | Precambrian; Mississippian-Pennsylvanian; Pleistocene, 1.6 to 1.25 Ma; Pliocene; Miocene | Crystalline basement “pCu”; Limestone-Madera Formation “MIPu”; Rhyolitic tuff-Bandelier Tuff (upper Tshirege “Qbt” and lower Otowi “Qbo” members); Caldera Fill Rhyolite (shallow); Dacitic/Andesitic to Rhyolitic lavas and tuffs-Keres Group Volcanics (shallow); Santa Fe Group volcaniclastics “Tsf” |