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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
East Africa
-
Tanzania (2)
-
-
East African Rift (1)
-
North Africa
-
Atlas Mountains
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Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
-
-
Morocco
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
-
-
-
Southern Africa
-
South Africa (1)
-
-
West Africa (1)
-
West African Craton (1)
-
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Altiplano (5)
-
Antarctica
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Antarctic Peninsula (1)
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Arctic Ocean
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Alpha Cordillera (1)
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Canada Basin (1)
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Lomonosov Ridge (1)
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Makarov Basin (1)
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Norwegian Sea
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Voring Plateau (1)
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Asia
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Buryat Russian Federation (1)
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Far East
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China
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Da Hinggan Ling (1)
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Guangdong China
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Zhujiang River (1)
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Heilongjiang China (1)
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Hong Kong (1)
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Sichuan China (1)
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South China Block (1)
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Xinjiang China
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Junggar (1)
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Xizang China
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Gangdese Belt (1)
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Lhasa Block (1)
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Yangtze Platform (1)
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Indonesia
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Krakatoa (1)
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Sumatra
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Toba Lake (1)
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Sunda Arc (1)
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Japan
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Honshu
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Shimane Japan (1)
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Korea
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North Korea (1)
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Mongolia (1)
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Indian Peninsula
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India
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Srinagar India (1)
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Jammu and Kashmir
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Kashmir (1)
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Srinagar India (1)
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Kamchatka Russian Federation
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Kamchatka Peninsula
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Avacha (2)
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Bezymyannyy (1)
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Klyuchevskaya Sopka (1)
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Sheveluch (1)
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Tolbachik (1)
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Middle East
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Iran (1)
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Turkey
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Anatolia (1)
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Sayan
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Eastern Sayan (1)
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Tibetan Plateau (1)
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Atlantic Ocean
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North Atlantic
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Northwest Atlantic (1)
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Australasia
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Australia
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Musgrave Block (1)
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Western Australia
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Yilgarn Craton (1)
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-
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New Zealand
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Auckland volcanic field (1)
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Okataina volcanic centre (2)
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Southland New Zealand
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Fiordland (1)
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Tarawera volcanic complex (1)
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Taupo (3)
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Taupo volcanic zone (5)
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Westland New Zealand (1)
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Papua New Guinea
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Ok Tedi Mine (1)
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Black Mountains (1)
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Canada
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Eastern Canada
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Maritime Provinces
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New Brunswick (2)
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Nova Scotia (1)
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Newfoundland and Labrador
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Labrador
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Voisey's Bay Deposit (1)
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Newfoundland (1)
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-
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Western Canada
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British Columbia (1)
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-
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Cascade Range (3)
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Central Cordillera (1)
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Colorado River (2)
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Colorado River basin (1)
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Commonwealth of Independent States
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Armenia (1)
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Azerbaijan
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Nakhichevan Azerbaijan (1)
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Caucasus
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Lesser Caucasus (1)
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Russian Federation
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Buryat Russian Federation (1)
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Kamchatka Russian Federation
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Kamchatka Peninsula
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Avacha (2)
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Bezymyannyy (1)
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Klyuchevskaya Sopka (1)
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Sheveluch (1)
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Tolbachik (1)
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Karelia Russian Federation (1)
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-
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Crater Lake (1)
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Death Valley (1)
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East Pacific Ocean Islands
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Hawaii
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Hawaii County Hawaii
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Hawaii Island
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Hualalai (1)
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Kilauea (1)
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Mauna Kea (1)
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Mauna Loa (1)
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Espanola Basin (1)
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Europe
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Alps
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Eastern Alps (1)
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Armenia (1)
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Azerbaijan
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Nakhichevan Azerbaijan (1)
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Caucasus
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Lesser Caucasus (1)
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Central Europe
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Austria (1)
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Vienna Basin (1)
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Karelia Russian Federation (1)
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Pannonian Basin (1)
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Pyrenees (1)
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Southern Europe
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Greece (1)
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Iberian Peninsula
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Spain
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Catalonia Spain (1)
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Italy
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Apennines
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Southern Apennines (1)
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Campania Italy
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Bay of Naples (1)
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Monte Somma (2)
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Naples Italy
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Ischia (2)
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Pozzuoli Italy (1)
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Phlegraean Fields (7)
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Sorrento Peninsula (1)
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Vesuvius (3)
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Sicily Italy
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Lipari Islands
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Lipari Island (1)
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Trentino-Alto Adige Italy
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Bolzano Italy
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Merano Italy (1)
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-
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Veneto Italy
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Euganean Hills (1)
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Western Europe
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Iceland (1)
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Scandinavia
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Denmark (1)
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United Kingdom
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Great Britain
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Bristol Channel (1)
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Scotland
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Scottish Highlands (1)
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-
-
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Grand Canyon (1)
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International Ocean Discovery Program (2)
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Jack Hills (1)
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Maritimes Basin (1)
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Mediterranean Sea
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West Mediterranean
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Tyrrhenian Sea (2)
-
-
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Mexico
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Chihuahua Mexico (1)
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Sierra Madre Occidental (2)
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-
North America
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Appalachians
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Northern Appalachians (1)
-
-
Basin and Range Province
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Great Basin (11)
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-
Canadian Shield
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Churchill Province
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Cape Smith fold belt (1)
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-
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Great Plains
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Northern Great Plains (1)
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North American Cordillera (3)
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Rio Grande Rift (2)
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Rocky Mountains
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Central Rocky Mountains (2)
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Southern Rocky Mountains (5)
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U. S. Rocky Mountains
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Laramie Mountains (1)
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San Juan Mountains
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Creede Caldera (1)
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Sawatch Range (1)
-
-
-
-
North Island (6)
-
Oceania
-
Polynesia
-
Hawaii
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Hawaii County Hawaii
-
Hawaii Island
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Hualalai (1)
-
Kilauea (1)
-
Kohala (1)
-
Mauna Kea (1)
-
-
-
Mauna Loa (1)
-
-
-
-
ODP Site 642 (1)
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific (1)
-
-
North Pacific
-
Northeast Pacific (1)
-
Northwest Pacific
-
Japan Sea (1)
-
Pigafetta Basin (1)
-
-
-
South Pacific
-
Southwest Pacific
-
Tasman Sea (1)
-
-
-
West Pacific
-
Northwest Pacific
-
Japan Sea (1)
-
Pigafetta Basin (1)
-
-
Southwest Pacific
-
Tasman Sea (1)
-
-
-
-
Peninsular Ranges (1)
-
Pioneer Mountains (1)
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Puna (6)
-
Sierra Nevada (7)
-
South America
-
Andes
-
Central Andes (4)
-
Western Cordillera (1)
-
-
Argentina
-
Chubut Argentina (1)
-
-
Chile
-
Magallanes Chile (1)
-
-
Patagonia (4)
-
Peru (1)
-
-
South Island (2)
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Stewart Island (1)
-
Taranaki Basin (1)
-
United States
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Alaska
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Katmai (1)
-
Katmai National Park (1)
-
-
Arizona
-
Cochise County Arizona (1)
-
-
California
-
Inyo County California (1)
-
Madera County California (1)
-
Mono County California
-
Long Valley Caldera (8)
-
-
Northern California (1)
-
Salinian Block (1)
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Sierra Nevada Batholith (2)
-
Transverse Ranges (1)
-
Tulare County California (1)
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Tuolumne County California (1)
-
Yosemite National Park (2)
-
-
Colorado
-
Conejos County Colorado (1)
-
Mineral County Colorado
-
Creede Caldera (1)
-
Creede mining district (1)
-
-
San Juan volcanic field (4)
-
Sawatch Range (1)
-
-
Colorado Plateau (3)
-
Great Basin (11)
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hualalai (1)
-
Kilauea (1)
-
Kohala (1)
-
Mauna Kea (1)
-
-
-
Mauna Loa (1)
-
-
High Plains Aquifer (1)
-
Idaho
-
Custer County Idaho (1)
-
Snake River plain (5)
-
-
Kansas
-
Ellis County Kansas (1)
-
-
Maine
-
Hancock County Maine (1)
-
-
Minnesota
-
Goodhue County Minnesota (1)
-
-
Missouri
-
Perry County Missouri (1)
-
-
Nebraska (1)
-
Nevada
-
Lyon County Nevada (1)
-
Nye County Nevada (1)
-
-
New Mexico
-
Datil-Mogollon volcanic field (1)
-
Jemez Mountains (1)
-
Pajarito Plateau (1)
-
Sandoval County New Mexico (1)
-
Taos County New Mexico
-
Questa Caldera (1)
-
-
Valles Caldera (3)
-
-
Oregon (1)
-
Sevier orogenic belt (1)
-
Southwestern U.S. (1)
-
U. S. Rocky Mountains
-
Laramie Mountains (1)
-
San Juan Mountains
-
Creede Caldera (1)
-
-
Sawatch Range (1)
-
-
Utah
-
Millard County Utah (1)
-
-
Walker Lane (3)
-
Washington
-
Mount Rainier National Park (2)
-
Pierce County Washington
-
Mount Rainier (1)
-
-
-
Western U.S. (12)
-
Wyoming
-
Teton County Wyoming (1)
-
-
Wyoming Province (1)
-
Yellowstone National Park (11)
-
-
Zealandia (1)
-
-
commodities
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energy sources (1)
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glass materials (2)
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helium gas (1)
-
metal ores
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cobalt ores (1)
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copper ores (5)
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gold ores (8)
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iron ores (1)
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lithium ores (1)
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mercury ores (1)
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molybdenum ores (5)
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nickel ores (1)
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polymetallic ores (1)
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silver ores (1)
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tin ores (1)
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uranium ores (1)
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zinc ores (1)
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mineral deposits, genesis (11)
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mineral exploration (3)
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-
elements, isotopes
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boron (1)
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carbon
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C-13/C-12 (4)
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C-14 (1)
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organic carbon (1)
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halogens
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bromine (1)
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chlorine (4)
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fluorine (3)
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hydrogen
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D/H (6)
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deuterium (2)
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incompatible elements (1)
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isotope ratios (34)
-
isotopes
-
radioactive isotopes
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C-14 (1)
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Pb-206/Pb-204 (4)
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Pb-207/Pb-204 (3)
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Pb-208/Pb-204 (2)
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U-238/U-235 (1)
-
-
stable isotopes
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C-13/C-12 (4)
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D/H (6)
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deuterium (2)
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He-4 (1)
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He-4/He-3 (1)
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Hf-177/Hf-176 (6)
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Li-7/Li-6 (2)
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Nd-144/Nd-143 (6)
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O-18/O-16 (18)
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Pb-206/Pb-204 (4)
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Pb-207/Pb-204 (3)
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Pb-207/Pb-206 (1)
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Pb-208/Pb-204 (2)
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S-34/S-32 (1)
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Sr-87/Sr-86 (10)
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-
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Lu/Hf (4)
-
metals
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actinides
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uranium
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U-238/U-235 (1)
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alkali metals
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lithium
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Li-7/Li-6 (2)
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potassium (2)
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rubidium (1)
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alkaline earth metals
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magnesium (2)
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strontium
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Sr-87/Sr-86 (10)
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-
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aluminum (2)
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copper (1)
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gold (1)
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hafnium
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Hf-177/Hf-176 (6)
-
-
lead
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Pb-206/Pb-204 (4)
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Pb-207/Pb-204 (3)
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Pb-207/Pb-206 (1)
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Pb-208/Pb-204 (2)
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molybdenum (1)
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niobium (1)
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rare earths
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cerium (2)
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dysprosium (1)
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europium (1)
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lutetium (1)
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neodymium
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Nd-144/Nd-143 (6)
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samarium (1)
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ytterbium (1)
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yttrium (1)
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titanium (5)
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zirconium (1)
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nitrogen (1)
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noble gases
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helium
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He-4 (1)
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He-4/He-3 (1)
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neon (1)
-
-
oxygen
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O-18/O-16 (18)
-
-
silicon (1)
-
sulfur
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S-34/S-32 (1)
-
-
-
fossils
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Chordata
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Vertebrata
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Tetrapoda
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Reptilia
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Diapsida
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Archosauria
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dinosaurs (1)
-
-
-
-
-
-
-
Invertebrata
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Arthropoda
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Mandibulata
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Crustacea
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Malacostraca (1)
-
-
-
-
Brachiopoda (1)
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Mollusca
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Bivalvia (2)
-
-
-
microfossils
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Conodonta (2)
-
-
Plantae
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Spermatophyta
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Gymnospermae
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Coniferales (1)
-
-
-
-
-
geochronology methods
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(U-Th)/He (2)
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Ar/Ar (18)
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hydration of glass (1)
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K/Ar (1)
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Lu/Hf (4)
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paleomagnetism (6)
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Rb/Sr (3)
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Re/Os (1)
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Th/U (6)
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thermochronology (2)
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tree rings (1)
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U/Pb (47)
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U/Th/Pb (3)
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uranium disequilibrium (1)
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geologic age
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Cenozoic
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middle Cenozoic (3)
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Quaternary
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Holocene
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upper Holocene (1)
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-
Pleistocene
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Bandelier Tuff (3)
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Bishop Tuff (8)
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lower Pleistocene (2)
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upper Pleistocene (7)
-
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upper Quaternary (1)
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Tertiary
-
Neogene
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Miocene
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lower Miocene (3)
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middle Miocene
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Badenian (1)
-
Langhian (1)
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-
Peach Springs Tuff (2)
-
Puerto Madryn Formation (1)
-
upper Miocene
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Tortonian (1)
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-
-
Pliocene (2)
-
-
Paleogene
-
Eocene
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upper Eocene (3)
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Oligocene
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Fish Canyon Tuff (4)
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upper Oligocene (1)
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-
Paleocene-Eocene Thermal Maximum (1)
-
upper Paleogene (1)
-
White River Group (1)
-
-
-
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous
-
Cedar Mountain Formation (1)
-
-
Upper Cretaceous
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Tuolumne Intrusive Suite (2)
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-
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Jurassic (1)
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Triassic
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Lower Triassic
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Permian-Triassic boundary (1)
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-
-
upper Mesozoic (1)
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Paleozoic
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Carboniferous (1)
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Devonian
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Lower Devonian (1)
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Upper Devonian (1)
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-
Ordovician
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Middle Ordovician
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Deicke Bentonite Bed (1)
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Platteville Formation (1)
-
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Upper Ordovician (2)
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Permian
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Lower Permian
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Cisuralian
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Kungurian (1)
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-
-
Upper Permian
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Permian-Triassic boundary (1)
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-
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Silurian
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Upper Silurian (1)
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upper Paleozoic (1)
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Phanerozoic (2)
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Precambrian
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Archean
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Neoarchean (1)
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Hadean (1)
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upper Precambrian
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Proterozoic
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Coldbrook Group (1)
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Mesoproterozoic (1)
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Neoproterozoic
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Cryogenian (1)
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Ediacaran (2)
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Sturtian (1)
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Paleoproterozoic (1)
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igneous rocks
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extrusive rocks (1)
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igneous rocks
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hypabyssal rocks (1)
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plutonic rocks
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diorites
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essexite (1)
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gabbros (3)
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granites
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S-type granites (1)
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two-mica granite (1)
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granodiorites (3)
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lamprophyres (1)
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monzodiorite (2)
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monzonites (3)
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syenites (3)
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ultramafics
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peridotites (1)
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porphyry (3)
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volcanic rocks
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andesites (2)
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basalts
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alkali basalts
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trachybasalts (1)
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flood basalts (1)
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dacites (6)
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glasses
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volcanic glass (1)
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phonolites (2)
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pyroclastics
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ash-flow tuff (2)
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ignimbrite (39)
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pumice (7)
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rhyolite tuff (1)
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tuff (18)
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welded tuff (1)
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rhyodacites (1)
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rhyolites
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comendite (1)
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trachyandesites (1)
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trachytes (5)
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ophiolite (1)
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volcanic ash (6)
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metamorphic rocks
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metamorphic rocks
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amphibolites (1)
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gneisses (1)
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granulites (1)
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hornfels (1)
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metasedimentary rocks
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metasomatic rocks
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skarn (1)
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metavolcanic rocks (1)
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schists
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greenschist (1)
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ophiolite (1)
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minerals
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fluorides
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native elements
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oxides
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iron oxides (1)
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magnetite (2)
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todorokite (1)
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phosphates
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apatite (4)
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monazite (1)
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silicates
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aluminosilicates (1)
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chain silicates
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amphibole group
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clinoamphibole
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hornblende (2)
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richterite (1)
-
-
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pyroxene group
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clinopyroxene (2)
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orthopyroxene (1)
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-
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framework silicates
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Primary terms
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Africa
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flood basalts (1)
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Invertebrata
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mantle (15)
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Mesozoic
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Cretaceous
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Lower Cretaceous
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Cedar Mountain Formation (1)
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Upper Cretaceous
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Tuolumne Intrusive Suite (2)
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Jurassic (1)
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aluminum (2)
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GeoRef Categories
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supervolcanoes
RESEARCH FOCUS: Tackling supervolcanoes: Big and fast? Open Access
Linking rapid magma reservoir assembly and eruption trigger mechanisms at evolved Yellowstone-type supervolcanoes Available to Purchase
Introduction: The 36–18 Ma southern Great Basin, USA, ignimbrite province and flareup: Swarms of subduction-related supervolcanoes Open Access
Arc magmatism, calderas, and supervolcanoes Open Access
SUPERVOLCANOES AND THEIR EXPLOSIVE SUPERERUPTIONS Available to Purchase
(Potentially) Frequently Asked Questions About Supervolcanoes and Supereruptions Available to Purchase
Supervolcanoes and Metallic Ore Deposits Available to Purchase
Supereruptions and Supervolcanoes: Processes and Products Available to Purchase
Late Paleozoic supervolcano-scale eruptions in Maine, USA Available to Purchase
Monitoring a Supervolcano in Repose: Heat and Volatile Flux at the Yellowstone Caldera Available to Purchase
Magma chamber of the Campi Flegrei supervolcano at the time of eruption of the Campanian Ignimbrite Available to Purchase
Two of the world's largest and most active supervolcanoes in repose. Both v... Available to Purchase
Cartoon illustrating scenarios for crystal age variations within supervolca... Available to Purchase
How Long Does It Take to Supersize an Eruption? Available to Purchase
Seismic evidence for significant melt beneath the Long Valley Caldera, California, USA Open Access
A supervolcano and its sidekicks: A 100 ka eruptive chronology of the Fish Canyon Tuff and associated units of the La Garita magmatic system, Colorado, USA Open Access
The evolving magmatic system at a young supervolcano: Taupo, New Zealand (f... Available to Purchase
The evolving magmatic system at a young supervolcano: Taupo, New Zealand (f... Available to Purchase
The evolving magmatic system at a young supervolcano: Taupo, New Zealand (f... Available to Purchase
Zircon U–Pb geochronology and Hf isotopic compositions of igneous rocks from Sumatra: implications for the Cenozoic magmatic evolution of the western Sunda Arc Open Access
Abstract Sumatra is located at the western end of the Sunda Arc, which resulted from the subduction of the Indo-Australian Plate beneath the Eurasian Plate. In this study, we report detailed zircon U–Pb and Hf isotope data for Cenozoic igneous rocks from the entire island of Sumatra to better constrain the temporal and spatial distribution of arc magmatism. The new dataset, combined with literature information, identifies the following two magmatic stages: (1) Paleocene to Early Eocene (66–48 Ma) and (2) Early Miocene to Recent (23–0 Ma), with a 25 myr-long period of magmatic quiescence in between. The magmatic zircons show predominantly positive and high ε Hf (t) values, ranging from +19.4 to +7.1 in western Sumatra, +17.1 to +1.6 in central Sumatra and +18.0 to +7.0 in eastern Sumatra, indicating an isotopically juvenile magma source in the mantle wedge along the western Sunda Arc. We explain the negative and low ε Hf (t) values (+0.5 to −13.1) of young samples around the supervolcano Toba as evidence for the subduction of sediment. We argue for a change in the subduction processes, where the first magmatic stage ceased owing to the termination of the Neo-Tethyan subduction and the following stage corresponded to the modern Sunda subduction.