Type F: Oceanic-ridge, Basaltic Resource

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Type F: Oceanic-ridge, Basaltic Resource

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Type F: Oceanic-ridge, Basaltic Resource:
No definition has been provided for this term.


Basaltic resources typically occur at oceanic-ridges, continental rifts, and hot spots. These geothermal systems are heated by magmatic activity and the exploited fluids are typically very high temperatures.

Examples of such resources include those in Hawaii, Iceland, and along the East African Rift.

According to Brophy, ocean-ridge, basaltic resources typically have the following properties:

  • Topography – Rugged to flat
  • Climate – Island – high precipitation
  • Depth to resource –Shallow (1000-2000m)
  • Surface manifestations - Common
  • Permeability – High horizontal permeability, variable vertical permeability






Examples

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

CSV
Geothermal
Resource
Area
Geothermal
Region
Control
Structure
Host
Rock
Age
Host
Rock
Lithology
Mean
Capacity
Mean
Reservoir
Temp
Aluto-Langano Geothermal Area East African Rift System - Ethiopian Rift Valley Major Normal Fault 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
Bjarnaflag Geothermal Area Mid Atlantic Ridge Basalt 3 MW3,000 kW
3,000,000 W
3,000,000,000 mW
0.003 GW
3.0e-6 TW
573.15 K300 °C
572 °F
1,031.67 °R
Hellisheidi Geothermal Area South Iceland Seismic Zone - Mid Atlantic Ridge Basalt 303 MW303,000 kW
303,000,000 W
303,000,000,000 mW
0.303 GW
3.03e-4 TW
533.15 K260 °C
500 °F
959.67 °R
Husavik (Hveravellir) Geothermal Area Mid Atlantic Ridge Basalt 2 MW2,000 kW
2,000,000 W
2,000,000,000 mW
0.002 GW
2.0e-6 TW
395.15 K122 °C
251.6 °F
711.27 °R
Kilauea East Rift Geothermal Area Hawaii Geothermal Region Intrusion Margins and Associated Fractures
Fissure Swarms
Quaternary Tholeiitic Basalt 47 MW47,000 kW
47,000,000 W
47,000,000,000 mW
0.047 GW
4.7e-5 TW
575.15 K302 °C
575.6 °F
1,035.27 °R
Krafla Geothermal Area Mid Atlantic Ridge Basalt 60 MW60,000 kW
60,000,000 W
60,000,000,000 mW
0.06 GW
6.0e-5 TW
538.15 K265 °C
509 °F
968.67 °R
Nesjavellir Geothermal Area South Iceland Seismic Zone - Mid Atlantic Ridge Basalt 120 MW120,000 kW
120,000,000 W
120,000,000,000 mW
0.12 GW
1.2e-4 TW
568.15 K295 °C
563 °F
1,022.67 °R
Olkaria Geothermal Area East African Rift System - Kenya Rift 602 MW602,000 kW
602,000,000 W
602,000,000,000 mW
0.602 GW
6.02e-4 TW
548.15 K275 °C
527 °F
986.67 °R
Pico Vermelho-Ribeira Grande Geothermal Area Mid Atlantic Ridge Basalt 28.5 MW28,500 kW
28,500,000 W
28,500,000,000 mW
0.0285 GW
2.85e-5 TW
511.15 K238 °C
460.4 °F
920.07 °R
Reykjanes Geothermal Area Mid Atlantic Ridge Basalt 100 MW100,000 kW
100,000,000 W
100,000,000,000 mW
0.1 GW
1.0e-4 TW
583.15 K310 °C
590 °F
1,049.67 °R
Svartsengi Geothermal Area Mid Atlantic Ridge Fault Intersection Basalt 76 MW76,000 kW
76,000,000 W
76,000,000,000 mW
0.076 GW
7.6e-5 TW
513.15 K240 °C
464 °F
923.67 °R

References

  1. Colin F. Williams, Marshall J. Reed and Arlene F. Anderson. 2011. Updating the Classification of Geothermal Resources - Presentation. In: Thirty-Sixth Workshop on Geothermal Reservoir Engineering; 2011/02/02; Stanford, California. Stanford, California: Stanford University; p. 23