Subduction Zone

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Subduction Zone

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Subduction Zone:
A tectonic process in which one tectonic plate is forced beneath another and sinks into the mantle as the plates converge
Other definitions:Wikipedia Reegle


Tectonic Settings

List of tectonic settings known to host modern geothermal systems:
A classic cartoon illustrating a typical simplified subduction zone. http://www.columbia.edu/~vjd1/subd_zone_basic.htm

Subduction zones occur where one tectonic plate is pulled under another. Most often the subducting plate is oceanic crust and contains many hydrous minerals. As the oceanic plate subducts it dewaters into the mantle, lowering the melting temperature of the surrounding mantle which causes flux melting of the mantle into magma. This magma rises up and creates volcanic arcs. These volcanic arcs have high heat flow from the magma plumes and related intrusives. The associated deformation and heat is conducive to high temperature (230-300°C) geothermal systems.

Though subduction zones and associated volcanic arcs are generally the most exploited tectonic settings for geothermal energy production throughout the world, the US has little development in its two major subduction induced volcanic arcs: The Cascades of the Pacific Northwest and the Aleutian Islands of Alaska.

Examples

Want to add an example to this list? Select a Geothermal Resource Area to edit its "Tectonic Setting" 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
Ahuachapan Geothermal Area Central American Volcanic Arc Chain 95 MW95,000 kW
95,000,000 W
95,000,000,000 mW
0.095 GW
9.5e-5 TW
503.15 K230 °C
446 °F
905.67 °R
Akita Geothermal Field Northeast Honshu Arc Major Normal Fault Tertiary Dacite 88.3 MW88,300 kW
88,300,000 W
88,300,000,000 mW
0.0883 GW
8.83e-5 TW
548.15 K275 °C
527 °F
986.67 °R
Amatitlan Geothermal Area Central American Volcanic Arc Chain 25 MW25,000 kW
25,000,000 W
25,000,000,000 mW
0.025 GW
2.5e-5 TW
513.15 K240 °C
464 °F
923.67 °R
Bac-Man Laguna Geothermal Area Philippine Island Arc Fault Intersection Volcanic 150 MW150,000 kW
150,000,000 W
150,000,000,000 mW
0.15 GW
1.5e-4 TW
543.15 K270 °C
518 °F
977.67 °R
Berlín Geothermal Area Central American Volcanic Arc Chain Andesite 109 MW109,000 kW
109,000,000 W
109,000,000,000 mW
0.109 GW
1.09e-4 TW
513.15 K240 °C
464 °F
923.67 °R
Bouillante Geothermal Area Lesser Antilles Volcanic Arc Fault Intersection
Major Normal Fault
Chlorite 15 MW15,000 kW
15,000,000 W
15,000,000,000 mW
0.015 GW
1.5e-5 TW
528.15 K255 °C
491 °F
950.67 °R
Fukushima Geothermal Area Northeast Honshu Arc Major Normal Fault 65 MW65,000 kW
65,000,000 W
65,000,000,000 mW
0.065 GW
6.5e-5 TW
579.15 K306 °C
582.8 °F
1,042.47 °R
Gunun-Salak Geothermal Area Sunda Volcanic Arc Major Normal Fault 345 MW345,000 kW
345,000,000 W
345,000,000,000 mW
0.345 GW
3.45e-4 TW
548.15 K275 °C
527 °F
986.67 °R
Hachijojima Geothermal Area Northeast Honshu Arc 3.3 MW3,300 kW
3,300,000 W
3,300,000,000 mW
0.0033 GW
3.3e-6 TW
556.15 K283 °C
541.4 °F
1,001.07 °R
Iwate Geothermal Area Northeast Honshu Arc Miocene; Pre-Tertiary Dacitic welded tuff; Marine Sediments Tuffs; Shales; Chert; Slate; Granodiorite 103.5 MW103,500 kW
103,500,000 W
103,500,000,000 mW
0.104 GW
1.035e-4 TW
578.15 K305 °C
581 °F
1,040.67 °R
Java - Darajat Geothermal Area Sunda Volcanic Arc Major Normal Fault Volcanics 255 MW255,000 kW
255,000,000 W
255,000,000,000 mW
0.255 GW
2.55e-4 TW
518.15 K245 °C
473 °F
932.67 °R
Java - Dieng Geothermal Area Sunda Volcanic Arc Lavas 60 MW60,000 kW
60,000,000 W
60,000,000,000 mW
0.06 GW
6.0e-5 TW
598.15 K325 °C
617 °F
1,076.67 °R
Java - Kamojang Geothermal Area Sunda Volcanic Arc Major Normal Fault 200 MW200,000 kW
200,000,000 W
200,000,000,000 mW
0.2 GW
2.0e-4 TW
518.15 K245 °C
473 °F
932.67 °R
Java-Wayang Windu Geothermal Area Sunda Volcanic Arc Major Normal Fault 227 MW227,000 kW
227,000,000 W
227,000,000,000 mW
0.227 GW
2.27e-4 TW
558.15 K285 °C
545 °F
1,004.67 °R
Kagoshima Geothermal Area Ryuku Arc Fault Intersection Neogene to recent Volcanic Rocks, Andesite 0.1 MW100 kW
100,000 W
100,000,000 mW
1.0e-4 GW
1.0e-7 TW
512.15 K239 °C
462.2 °F
921.87 °R
Kawerau Geothermal Area Taupo Volcanic Zone Fault Intersection Quaternary Volcaniclastic; Sandstone; Mudstone 115 MW115,000 kW
115,000,000 W
115,000,000,000 mW
0.115 GW
1.15e-4 TW
543.15 K270 °C
518 °F
977.67 °R
La Primavera Geothermal Area Transmexican Volcanic Belt Tertiary Andesite 25 MW25,000 kW
25,000,000 W
25,000,000,000 mW
0.025 GW
2.5e-5 TW
527.15 K254 °C
489.2 °F
948.87 °R
Lahendong Geothermal Area Minahasa Volcanic Zone Fault Intersection Miocene Andesite 80 MW80,000 kW
80,000,000 W
80,000,000,000 mW
0.08 GW
8.0e-5 TW
578.15 K305 °C
581 °F
1,040.67 °R
Leyte Geothermal Area Philippine Island Arc Andesite 714.9 MW714,900 kW
714,900,000 W
714,900,000,000 mW
0.715 GW
7.149e-4 TW
553.15 K280 °C
536 °F
995.67 °R
Lihir Geothermal Area Papua New Guinea Geothermal Region Basalt; Breccias; Tuffs 56 MW56,000 kW
56,000,000 W
56,000,000,000 mW
0.056 GW
5.6e-5 TW
548.15 K275 °C
527 °F
986.67 °R
Los Azufres Geothermal Area Transmexican Volcanic Belt Miocene-Pliocene Andesite 188 MW188,000 kW
188,000,000 W
188,000,000,000 mW
0.188 GW
1.88e-4 TW
448.15 K175 °C
347 °F
806.67 °R
Los Humeros Geothermal Area Transmexican Volcanic Belt Tertiary Andesite 90 MW90,000 kW
90,000,000 W
90,000,000,000 mW
0.09 GW
9.0e-5 TW
578.15 K305 °C
581 °F
1,040.67 °R
Maibarara Geothermal Area Philippines Geothermal Region 20 MW20,000 kW
20,000,000 W
20,000,000,000 mW
0.02 GW
2.0e-5 TW
541.15 K268 °C
514.4 °F
974.07 °R
Mak-Ban / Laguna Geothermal Area Philippine Island Arc 457.75 MW457,750 kW
457,750,000 W
457,750,000,000 mW
0.458 GW
4.5775e-4 TW
618.15 K345 °C
653 °F
1,112.67 °R
Mendeleevskaya Geothermal Area Kuril-Kamchatka Arc 1.8 MW1,800 kW
1,800,000 W
1,800,000,000 mW
0.0018 GW
1.8e-6 TW
553.15 K280 °C
536 °F
995.67 °R
Mindanao Geothermal Area Philippine Island Arc 105 MW105,000 kW
105,000,000 W
105,000,000,000 mW
0.105 GW
1.05e-4 TW
533.15 K260 °C
500 °F
959.67 °R
Miravalles Geothermal Area Central American Volcanic Arc Chain 165 MW165,000 kW
165,000,000 W
165,000,000,000 mW
0.165 GW
1.65e-4 TW
513.15 K240 °C
464 °F
923.67 °R
Miyagi Geothermal Area Northeast Honshu Arc Miocene Basalt 12.5 MW12,500 kW
12,500,000 W
12,500,000,000 mW
0.0125 GW
1.25e-5 TW
523.15 K250 °C
482 °F
941.67 °R
Mokai Geothermal Area Taupo Volcanic Zone Fault Intersection Quaternary Volcaniclastic 112 MW112,000 kW
112,000,000 W
112,000,000,000 mW
0.112 GW
1.12e-4 TW
568.15 K295 °C
563 °F
1,022.67 °R
Momotombo Geothermal Area Central American Volcanic Arc Chain 77 MW77,000 kW
77,000,000 W
77,000,000,000 mW
0.077 GW
7.7e-5 TW
513.15 K240 °C
464 °F
923.67 °R
Mori Geothermal Area Kuril-Kamchatka Arc Caldera Rim Margins Pre-Tertiary Limestone 50 MW50,000 kW
50,000,000 W
50,000,000,000 mW
0.05 GW
5.0e-5 TW
513.15 K240 °C
464 °F
923.67 °R
Mutnovskaya Geothermal Area Kuril-Kamchatka Arc Fault Intersection Oligocene 62 MW62,000 kW
62,000,000 W
62,000,000,000 mW
0.062 GW
6.2e-5 TW
507.15 K234 °C
453.2 °F
912.87 °R
Ogiri Geothermal Area Ryuku Arc Major Normal Fault Quaternary Andesite 30 MW30,000 kW
30,000,000 W
30,000,000,000 mW
0.03 GW
3.0e-5 TW
533.15 K260 °C
500 °F
959.67 °R
Oguni Geothermal Field Japan 2 MW2,000 kW
2,000,000 W
2,000,000,000 mW
0.002 GW
2.0e-6 TW
475.15 K202 °C
395.6 °F
855.27 °R
Ohaaki Geothermal Area Taupo Volcanic Zone Fault Intersection Quaternary Volcaniclastic 122 MW122,000 kW
122,000,000 W
122,000,000,000 mW
0.122 GW
1.22e-4 TW
538.15 K265 °C
509 °F
968.67 °R
Oita Geothermal Area Ryuku Arc 13.54 MW13,540 kW
13,540,000 W
13,540,000,000 mW
0.0135 GW
1.354e-5 TW
Okeanskaya Geothermal Area Kuril-Kamchatka Arc 3.2 MW3,200 kW
3,200,000 W
3,200,000,000 mW
0.0032 GW
3.2e-6 TW
558.15 K285 °C
545 °F
1,004.67 °R
Pailas Geothermal Area Central American Volcanic Arc Chain Andesite 35 MW35,000 kW
35,000,000 W
35,000,000,000 mW
0.035 GW
3.5e-5 TW
Pauzhetskaya Geothermal Area Kuril-Kamchatka Arc Tuff 27 MW27,000 kW
27,000,000 W
27,000,000,000 mW
0.027 GW
2.7e-5 TW
468.15 K195 °C
383 °F
842.67 °R
Pengalengan Geothermal Area West Java 2 MW2,000 kW
2,000,000 W
2,000,000,000 mW
0.002 GW
2.0e-6 TW
503.15 K230 °C
446 °F
905.67 °R
Rincon De La Vieja Geothermal Resource Area Rincon De La Vieja Andesite 42 MW42,000 kW
42,000,000 W
42,000,000,000 mW
0.042 GW
4.2e-5 TW
533.15 K260 °C
500 °F
959.67 °R
Rotokawa Geothermal Area Taupo Volcanic Zone Fault Intersection Quaternary Volcaniclastic 167 MW167,000 kW
167,000,000 W
167,000,000,000 mW
0.167 GW
1.67e-4 TW
573.15 K300 °C
572 °F
1,031.67 °R
San Jacinto Geothermal Area Central American Volcanic Arc Chain 87 MW87,000 kW
87,000,000 W
87,000,000,000 mW
0.087 GW
8.7e-5 TW
543.15 K270 °C
518 °F
977.67 °R
South Negros Geothermal Area Philippine Island Arc 242 MW242,000 kW
242,000,000 W
242,000,000,000 mW
0.242 GW
2.42e-4 TW
573.15 K300 °C
572 °F
1,031.67 °R
Sumatra-Sibayak Geothermal Area Sunda Volcanic Arc - Great Sumatra Fault Zone Fault Intersection Tertiary Sandstone; Limestone 12 MW12,000 kW
12,000,000 W
12,000,000,000 mW
0.012 GW
1.2e-5 TW
543.15 K270 °C
518 °F
977.67 °R
Takigami Geothermal Area Ryuku Arc Fault Controlled Tertiary Andesite 28 MW28,000 kW
28,000,000 W
28,000,000,000 mW
0.028 GW
2.8e-5 TW
478.15 K205 °C
401 °F
860.67 °R
Tiwi / Albay Geothermal Area Philippine Island Arc Andesite 330 MW330,000 kW
330,000,000 W
330,000,000,000 mW
0.33 GW
3.3e-4 TW
593.15 K320 °C
608 °F
1,067.67 °R
Wairakei-Poihipi Geothermal Area Taupo Volcanic Zone Fault Intersection Quaternary Volcaniclastic 352 MW352,000 kW
352,000,000 W
352,000,000,000 mW
0.352 GW
3.52e-4 TW
483.15 K210 °C
410 °F
869.67 °R
Yamagawa Geothermal Area Ryuku Arc Neogene to Recent Volcanics 30 MW30,000 kW
30,000,000 W
30,000,000,000 mW
0.03 GW
3.0e-5 TW
Zunil Geothermal Area Central American Volcanic Arc Chain Granite; Volcanics 28 MW28,000 kW
28,000,000 W
28,000,000,000 mW
0.028 GW
2.8e-5 TW
532.15 K259 °C
498.2 °F
957.87 °R