Type B: Andesitic Volcanic Resource

GEOTHERMAL ENERGY

Type B: Andesitic Volcanic Resource:

No definition has been provided for this term.

Add a Definition

Brophy Occurrence Models

This classification scheme was developed by Brophy, as reported in Updating the Classification of Geothermal Resources.

• Type A: Magma-heated, Dry Steam Resource
• Type B: Andesitic Volcanic Resource
• Type C: Caldera Resource
• Type D: Sedimentary-hosted, Volcanic-related Resource
• Type E: Extensional Tectonic, Fault-Controlled Resource
• Type F: Oceanic-ridge, Basaltic Resource

Andesitic resources are typically found in volcanic regions of subduction zones and are the most common type of resource found. The input of magma as a heat source and high strain rates contribute to the prolific development of geothermal systems in andesitic-volcanic belts. Examples include most resources in the Philippines, Indonesia, Central America, and South America.

According to Brophy, andesitic-volcanic resources typically have the following properties:

• Topography – Usually mountainous
• Climate – Variable, usually high precipitation
• Depth to resource – Deep to moderate
• Surface manifestations – Restricted- depending on depth and shallow ground water
• Permeability – Low to moderate fracture permeability – often high

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" option.

CSV

Geothermal Resource Area	Geothermal Region	Control Structure	Host Rock Age	Host Rock Lithology	Mean Capacity	Mean Reservoir Temp
Ahuachapan Geothermal Area	Central American Volcanic Arc Chain				95 MW95,000 kW <br />95,000,000 W <br />95,000,000,000 mW <br />0.095 GW <br />9.5e-5 TW <br />	503.15 K230 °C <br />446 °F <br />905.67 °R <br />
Akita Geothermal Field	Northeast Honshu Arc	Major Normal Fault	Tertiary	Dacite	88.3 MW88,300 kW <br />88,300,000 W <br />88,300,000,000 mW <br />0.0883 GW <br />8.83e-5 TW <br />	548.15 K275 °C <br />527 °F <br />986.67 °R <br />
Bac-Man Laguna Geothermal Area	Philippine Island Arc	Fault Intersection		Volcanic	150 MW150,000 kW <br />150,000,000 W <br />150,000,000,000 mW <br />0.15 GW <br />1.5e-4 TW <br />	543.15 K270 °C <br />518 °F <br />977.67 °R <br />
Berlín Geothermal Area	Central American Volcanic Arc Chain			Andesite	109 MW109,000 kW <br />109,000,000 W <br />109,000,000,000 mW <br />0.109 GW <br />1.09e-4 TW <br />	513.15 K240 °C <br />464 °F <br />923.67 °R <br />
Bouillante Geothermal Area	Lesser Antilles Volcanic Arc	Fault Intersection Major Normal Fault		Chlorite	15 MW15,000 kW <br />15,000,000 W <br />15,000,000,000 mW <br />0.015 GW <br />1.5e-5 TW <br />	528.15 K255 °C <br />491 °F <br />950.67 °R <br />
East Nusatenngara	Indonesia Geothermal Region				1.8 MW1,800 kW <br />1,800,000 W <br />1,800,000,000 mW <br />0.0018 GW <br />1.8e-6 TW <br />	558.15 K285 °C <br />545 °F <br />1,004.67 °R <br />
Fang Geothermal Area	Thailand Geothermal Region	Major Normal Fault		Granite	0.3 MW300 kW <br />300,000 W <br />300,000,000 mW <br />3.0e-4 GW <br />3.0e-7 TW <br />	418.15 K145 °C <br />293 °F <br />752.67 °R <br />
Fukushima Geothermal Area	Northeast Honshu Arc	Major Normal Fault			65 MW65,000 kW <br />65,000,000 W <br />65,000,000,000 mW <br />0.065 GW <br />6.5e-5 TW <br />	579.15 K306 °C <br />582.8 °F <br />1,042.47 °R <br />
Gunun-Salak Geothermal Area	Sunda Volcanic Arc	Major Normal Fault			345 MW345,000 kW <br />345,000,000 W <br />345,000,000,000 mW <br />0.345 GW <br />3.45e-4 TW <br />	548.15 K275 °C <br />527 °F <br />986.67 °R <br />
Hachijojima Geothermal Area	Northeast Honshu Arc				3.3 MW3,300 kW <br />3,300,000 W <br />3,300,000,000 mW <br />0.0033 GW <br />3.3e-6 TW <br />	556.15 K283 °C <br />541.4 °F <br />1,001.07 °R <br />
Java - Darajat Geothermal Area	Sunda Volcanic Arc	Major Normal Fault		Volcanics	255 MW255,000 kW <br />255,000,000 W <br />255,000,000,000 mW <br />0.255 GW <br />2.55e-4 TW <br />	518.15 K245 °C <br />473 °F <br />932.67 °R <br />
Java - Dieng Geothermal Area	Sunda Volcanic Arc			Lavas	60 MW60,000 kW <br />60,000,000 W <br />60,000,000,000 mW <br />0.06 GW <br />6.0e-5 TW <br />	598.15 K325 °C <br />617 °F <br />1,076.67 °R <br />
Java - Kamojang Geothermal Area	Sunda Volcanic Arc	Major Normal Fault			200 MW200,000 kW <br />200,000,000 W <br />200,000,000,000 mW <br />0.2 GW <br />2.0e-4 TW <br />	518.15 K245 °C <br />473 °F <br />932.67 °R <br />
Java-Wayang Windu Geothermal Area	Sunda Volcanic Arc	Major Normal Fault			227 MW227,000 kW <br />227,000,000 W <br />227,000,000,000 mW <br />0.227 GW <br />2.27e-4 TW <br />	558.15 K285 °C <br />545 °F <br />1,004.67 °R <br />
Kagoshima Geothermal Area	Ryuku Arc	Fault Intersection	Neogene to recent	Volcanic Rocks, Andesite	0.1 MW100 kW <br />100,000 W <br />100,000,000 mW <br />1.0e-4 GW <br />1.0e-7 TW <br />	512.15 K239 °C <br />462.2 °F <br />921.87 °R <br />
Las Tres Virgenes Geothermal Area	Baja Peninsula Geothermal Region			Granodiorite	10 MW10,000 kW <br />10,000,000 W <br />10,000,000,000 mW <br />0.01 GW <br />1.0e-5 TW <br />	553.15 K280 °C <br />536 °F <br />995.67 °R <br />
Leyte Geothermal Area	Philippine Island Arc			Andesite	714.9 MW714,900 kW <br />714,900,000 W <br />714,900,000,000 mW <br />0.715 GW <br />7.149e-4 TW <br />	553.15 K280 °C <br />536 °F <br />995.67 °R <br />
Los Azufres Geothermal Area	Transmexican Volcanic Belt		Miocene-Pliocene	Andesite	188 MW188,000 kW <br />188,000,000 W <br />188,000,000,000 mW <br />0.188 GW <br />1.88e-4 TW <br />	448.15 K175 °C <br />347 °F <br />806.67 °R <br />
Maibarara Geothermal Area	Philippines Geothermal Region				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 />	541.15 K268 °C <br />514.4 °F <br />974.07 °R <br />
Mendeleevskaya Geothermal Area	Kuril-Kamchatka Arc				1.8 MW1,800 kW <br />1,800,000 W <br />1,800,000,000 mW <br />0.0018 GW <br />1.8e-6 TW <br />	553.15 K280 °C <br />536 °F <br />995.67 °R <br />
Mindanao Geothermal Area	Philippine Island Arc				105 MW105,000 kW <br />105,000,000 W <br />105,000,000,000 mW <br />0.105 GW <br />1.05e-4 TW <br />	533.15 K260 °C <br />500 °F <br />959.67 °R <br />
Miravalles Geothermal Area	Central American Volcanic Arc Chain				165 MW165,000 kW <br />165,000,000 W <br />165,000,000,000 mW <br />0.165 GW <br />1.65e-4 TW <br />	513.15 K240 °C <br />464 °F <br />923.67 °R <br />
Miyagi Geothermal Area	Northeast Honshu Arc		Miocene	Basalt	12.5 MW12,500 kW <br />12,500,000 W <br />12,500,000,000 mW <br />0.0125 GW <br />1.25e-5 TW <br />	523.15 K250 °C <br />482 °F <br />941.67 °R <br />
Mount Amiata Geothermal Area	Italy Geothermal Region				88 MW88,000 kW <br />88,000,000 W <br />88,000,000,000 mW <br />0.088 GW <br />8.8e-5 TW <br />	523.15 K250 °C <br />482 °F <br />941.67 °R <br />
Mutnovskaya Geothermal Area	Kuril-Kamchatka Arc	Fault Intersection	Oligocene		62 MW62,000 kW <br />62,000,000 W <br />62,000,000,000 mW <br />0.062 GW <br />6.2e-5 TW <br />	507.15 K234 °C <br />453.2 °F <br />912.87 °R <br />
Ndunga Geothermal Area	Indonesia Geothermal Region				5 MW5,000 kW <br />5,000,000 W <br />5,000,000,000 mW <br />0.005 GW <br />5.0e-6 TW <br />	513.15 K240 °C <br />464 °F <br />923.67 °R <br />
North Negros Geothermal Area	Philippine Island Arc				192.5 MW192,500 kW <br />192,500,000 W <br />192,500,000,000 mW <br />0.193 GW <br />1.925e-4 TW <br />	528.15 K255 °C <br />491 °F <br />950.67 °R <br />
Ogiri Geothermal Area	Ryuku Arc	Major Normal Fault	Quaternary	Andesite	30 MW30,000 kW <br />30,000,000 W <br />30,000,000,000 mW <br />0.03 GW <br />3.0e-5 TW <br />	533.15 K260 °C <br />500 °F <br />959.67 °R <br />
Oguni Geothermal Field	Japan: Energy Resources				2 MW2,000 kW <br />2,000,000 W <br />2,000,000,000 mW <br />0.002 GW <br />2.0e-6 TW <br />	475.15 K202 °C <br />395.6 °F <br />855.27 °R <br />
Ohaaki Geothermal Area	Taupo Volcanic Zone	Fault Intersection	Quaternary	Volcaniclastic	122 MW122,000 kW <br />122,000,000 W <br />122,000,000,000 mW <br />0.122 GW <br />1.22e-4 TW <br />	538.15 K265 °C <br />509 °F <br />968.67 °R <br />
Okeanskaya Geothermal Area	Kuril-Kamchatka Arc				3.2 MW3,200 kW <br />3,200,000 W <br />3,200,000,000 mW <br />0.0032 GW <br />3.2e-6 TW <br />	558.15 K285 °C <br />545 °F <br />1,004.67 °R <br />
Pailas Geothermal Area	Central American Volcanic Arc Chain			Andesite	35 MW35,000 kW <br />35,000,000 W <br />35,000,000,000 mW <br />0.035 GW <br />3.5e-5 TW <br />
Patuha Geothermal Area	Indonesia Geothermal Region				55 MW55,000 kW <br />55,000,000 W <br />55,000,000,000 mW <br />0.055 GW <br />5.5e-5 TW <br />	496.15 K223 °C <br />433.4 °F <br />893.07 °R <br />
Pauzhetskaya Geothermal Area	Kuril-Kamchatka Arc			Tuff	27 MW27,000 kW <br />27,000,000 W <br />27,000,000,000 mW <br />0.027 GW <br />2.7e-5 TW <br />	468.15 K195 °C <br />383 °F <br />842.67 °R <br />
Pengalengan Geothermal Area	West Java				2 MW2,000 kW <br />2,000,000 W <br />2,000,000,000 mW <br />0.002 GW <br />2.0e-6 TW <br />	503.15 K230 °C <br />446 °F <br />905.67 °R <br />
Rincon De La Vieja Geothermal Resource Area	Rincon De La Vieja			Andesite	42 MW42,000 kW <br />42,000,000 W <br />42,000,000,000 mW <br />0.042 GW <br />4.2e-5 TW <br />	533.15 K260 °C <br />500 °F <br />959.67 °R <br />
San Jacinto Geothermal Area	Central American Volcanic Arc Chain				87 MW87,000 kW <br />87,000,000 W <br />87,000,000,000 mW <br />0.087 GW <br />8.7e-5 TW <br />	543.15 K270 °C <br />518 °F <br />977.67 °R <br />
South Negros Geothermal Area	Philippine Island Arc				242 MW242,000 kW <br />242,000,000 W <br />242,000,000,000 mW <br />0.242 GW <br />2.42e-4 TW <br />	573.15 K300 °C <br />572 °F <br />1,031.67 °R <br />
Tiwi / Albay Geothermal Area	Philippine Island Arc			Andesite	330 MW330,000 kW <br />330,000,000 W <br />330,000,000,000 mW <br />0.33 GW <br />3.3e-4 TW <br />	593.15 K320 °C <br />608 °F <br />1,067.67 °R <br />
Tokamachi Geothermal Area	Japanese Archipelago				2 MW2,000 kW <br />2,000,000 W <br />2,000,000,000 mW <br />0.002 GW <br />2.0e-6 TW <br />
Ulubelu Geothermal Field	Indonesia Geothermal Region				2 MW2,000 kW <br />2,000,000 W <br />2,000,000,000 mW <br />0.002 GW <br />2.0e-6 TW <br />	403.15 K130 °C <br />266 °F <br />725.67 °R <br />
Ulumbu Geothermal Field	Indonesia Geothermal Region				5 MW5,000 kW <br />5,000,000 W <br />5,000,000,000 mW <br />0.005 GW <br />5.0e-6 TW <br />	465.15 K192 °C <br />377.6 °F <br />837.27 °R <br />
Yamagawa Geothermal Area	Ryuku Arc		Neogene to Recent	Volcanics	30 MW30,000 kW <br />30,000,000 W <br />30,000,000,000 mW <br />0.03 GW <br />3.0e-5 TW <br />

(none entered into OpenEI)