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Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
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East Africa
-
Ethiopia
-
Wallo Ethiopia (1)
-
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Kenya
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Kenya Rift valley (1)
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Altiplano (1)
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Antarctica
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Antarctic Peninsula
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Graham Land (1)
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Queen Maud Land (1)
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Transantarctic Mountains (1)
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Asia
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Altai Russian Federation (1)
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Buryat Russian Federation (1)
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Far East
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Indochina (1)
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Indonesia (1)
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Mongolia (1)
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Philippine Islands
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Luzon
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Mount Pinatubo (3)
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Thailand (1)
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Indian Peninsula
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India
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Gujarat India
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Kutch India
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Bhuj India (1)
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Kamchatka Russian Federation (1)
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Khabarovsk Russian Federation (1)
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Middle East
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Cyprus
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Troodos Massif (1)
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Turkey
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Okhotsk-Chukchi volcanic belt (1)
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Rudny Altai (1)
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Sayan
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Sikhote-Alin Range (1)
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Transbaikalia (2)
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Augustine (2)
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Australasia
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Australia
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New Zealand
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Okataina volcanic centre (1)
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Rotorua New Zealand (2)
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Taupo volcanic zone (6)
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Bowen Basin (1)
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Canada
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Eastern Canada
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Newfoundland and Labrador
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Newfoundland (2)
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Ontario (1)
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Quebec
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Noranda Quebec (1)
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Nunavut
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Ellesmere Island
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Fosheim Peninsula (1)
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Sverdrup Basin (1)
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Queen Elizabeth Islands
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Sverdrup Basin (1)
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Western Canada
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Canadian Cordillera (1)
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Manitoba
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Yukon Territory
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Caribbean region
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West Indies
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Antilles
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Lesser Antilles
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Montserrat Island
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Soufriere Hills (1)
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Soufriere (1)
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Cascade Range (1)
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Central America
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Guatemala (1)
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Commonwealth of Independent States
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Caucasus
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Northern Caucasus (1)
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Ossetia
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Rudny Altai (1)
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Russian Federation
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Altai Russian Federation (1)
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Buryat Russian Federation (1)
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Kabardin-Balkar Russian Federation (1)
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Kamchatka Russian Federation (1)
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Khabarovsk Russian Federation (1)
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North Ossetia Russian Federation (1)
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Northern Caucasus (1)
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Okhotsk-Chukchi volcanic belt (1)
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Sikhote-Alin Range (1)
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Transbaikalia (2)
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Tuva Russian Federation (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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Kilauea (2)
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Europe
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Carpathians
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Central Europe
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Hungary
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Slovakia (1)
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Pyrenees
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Italy
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Umbria Italy (1)
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Thrace
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Western Europe
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France
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Iceland
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Scandinavia
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Sweden
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Mediterranean region
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Mediterranean Sea
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Mexico
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North America
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North Island (8)
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Oceania
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Polynesia
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Hawaii
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Hawaii County Hawaii
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Kilauea (2)
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Pacific Ocean
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East Pacific (1)
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Equatorial Pacific (1)
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North Pacific
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South Pacific (1)
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West Pacific
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Pacific region
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Circum-Pacific region (1)
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Puna (1)
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Sacramento Mountains (1)
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Sawtooth Range (1)
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Sierra Nevada (2)
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South America
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Andes
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Central Andes (3)
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Argentina (3)
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Bolivia
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Oruro Bolivia (1)
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Brazil
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Rio Grande do Sul Brazil (1)
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Chile
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Los Lagos Chile (1)
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Colombia (1)
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Peru (1)
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Southern Uplands (1)
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Sydney Basin (1)
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United States
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Alaska
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Katmai (1)
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Valley of Ten Thousand Smokes (1)
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Arizona
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La Paz County Arizona (1)
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-
California
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Inyo County California (1)
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Mono County California
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Inyo Domes (1)
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Long Valley Caldera (6)
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Mono Craters (1)
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Obsidian Dome (1)
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Nevada County California (1)
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Northern California (2)
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Sierra County California (1)
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Sierra Nevada Batholith (1)
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Siskiyou County California
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Medicine Lake Highland (1)
-
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Tuolumne County California (1)
-
-
Colorado
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Custer County Colorado (1)
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Mineral County Colorado
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Creede Caldera (1)
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San Juan volcanic field (1)
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Columbia Plateau (1)
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Great Basin (3)
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Hawaii
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Hawaii County Hawaii
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Hawaii Island
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Kilauea (2)
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Idaho
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Snake River plain (5)
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Idaho Batholith (1)
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Iowa (1)
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Kentucky (1)
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Klamath Mountains (1)
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Nebraska
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Nevada
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Nye County Nevada
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Pershing County Nevada
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New Jersey
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New Mexico
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Socorro County New Mexico
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Valles Caldera (2)
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New York (1)
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Pennsylvania (1)
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Texas
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Brewster County Texas (1)
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Presidio County Texas (1)
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Trans-Pecos (1)
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U. S. Rocky Mountains
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Creede Caldera (1)
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Utah
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Oquirrh Mountains (1)
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Thomas Range (1)
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-
Washington
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Skamania County Washington
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Mount Saint Helens (1)
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Western U.S. (5)
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Wyoming (2)
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Yellowstone National Park (4)
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Yellowstone River (1)
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commodities
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brines (4)
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construction materials (1)
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energy sources (1)
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gems (2)
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glass materials (9)
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industrial minerals (1)
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metal ores
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copper ores (3)
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lead-zinc deposits (2)
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polymetallic ores (3)
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mineral deposits, genesis (7)
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mineral exploration (3)
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elements, isotopes
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halogens
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chlorine (5)
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fluorine (4)
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hydrogen
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D/H (4)
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deuterium (1)
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isotope ratios (21)
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isotopes
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radioactive isotopes
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Ar-40/Ar-39 (1)
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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stable isotopes
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Ar-40/Ar-39 (1)
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D/H (4)
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deuterium (1)
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He-4/He-3 (1)
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Li-7/Li-6 (1)
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Nd-144/Nd-143 (5)
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O-18/O-16 (10)
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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Sr-87/Sr-86 (10)
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Lu/Hf (1)
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metals
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actinides
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thorium (2)
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uranium (1)
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alkali metals
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lithium
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Li-7/Li-6 (1)
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potassium (3)
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alkaline earth metals
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magnesium (1)
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strontium
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Sr-87/Sr-86 (10)
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aluminum (2)
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copper (3)
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iron
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ferric iron (6)
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lead
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Pb-206/Pb-204 (2)
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Pb-208/Pb-204 (2)
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niobium (1)
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rare earths
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neodymium
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Nd-144/Nd-143 (5)
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yttrium (3)
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nitrogen (1)
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helium
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Invertebrata
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Insecta
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microfossils (1)
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fission-track dating (3)
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paleomagnetism (4)
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geologic age
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Cenozoic
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Quaternary
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upper Holocene (1)
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Pleistocene
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middle Pleistocene (2)
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upper Pleistocene
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Wisconsinan
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upper Quaternary
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Brunhes Chron (1)
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Stone Age
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Tertiary
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Neogene
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Miocene
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Columbia River Basalt Group (2)
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middle Miocene (2)
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upper Miocene
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Ogallala Formation (1)
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lower Pliocene (1)
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Paleogene
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Eocene
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upper Eocene (1)
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Oligocene
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upper Cenozoic (1)
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Mesozoic
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Cretaceous
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Lower Cretaceous (2)
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Upper Cretaceous
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Kanguk Formation (1)
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Tuolumne Intrusive Suite (1)
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Jurassic
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Ferrar Group (1)
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Lower Jurassic (2)
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Upper Jurassic (2)
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Paleozoic
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Carboniferous
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Pennsylvanian
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Upper Pennsylvanian
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Virgilian (1)
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Devonian
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Upper Devonian
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Frasnian (1)
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Laborcita Formation (1)
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Ordovician
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Lower Ordovician
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Tremadocian (1)
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Upper Ordovician (1)
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Utica Shale (1)
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Permian
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Lower Permian
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Abo Formation (1)
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Wolfcampian (1)
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Upper Permian (1)
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Precambrian
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Archean
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Paleoarchean (1)
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Harbour Main Group (1)
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upper Precambrian
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Proterozoic
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Huronian (1)
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igneous rocks
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igneous rocks
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peperite (1)
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plutonic rocks
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gabbros
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granites
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porphyry
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volcanic rocks
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andesites (7)
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flood basalts (3)
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shoshonite (2)
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dacites (2)
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glasses
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obsidian (18)
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volcanic glass (24)
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latite (2)
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welded tuff (1)
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volcanic ash (10)
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metasedimentary rocks
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metavolcanic rocks (4)
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minerals
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alloys
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carbonates
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calcite (2)
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halides
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fluorides
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K-bentonite (2)
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minerals (7)
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pyroxene group
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framework silicates
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feldspar group
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alkali feldspar
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adularia (1)
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K-feldspar (2)
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sanidine (5)
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plagioclase
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albite (1)
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oligoclase (1)
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nepheline group
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nepheline (2)
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silica minerals
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chalcedony (1)
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cristobalite (2)
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opal
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opal-A (1)
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quartz (15)
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Primary terms
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
rhyolitic composition
New 40 Ar/ 39 Ar eruption ages reveal an important temporal relationship between mafic and silicic volcanism in the Yellowstone Plateau volcanic field Available to Purchase
Cristobalite Clinker and Paralavas of Ferroan and Melilite–Nepheline Types in the Khamaryn-Khural–Khiid Combustion Methamorphic Complex, East Mongolia: Formation Conditions and Processes Available to Purchase
Eruptive dynamics reflect crustal structure and mantle productivity beneath volcanoes Open Access
Volcano-sedimentary processes at Las Derrumbadas rhyolitic twin domes, Serdán-Oriental Basin, Eastern Trans-Mexican Volcanic Belt Available to Purchase
Abstract The eruption of the c. 10 km 3 rhyolitic Las Derrumbadas twin domes about 2000 years ago generated a wide range of volcano-sedimentary deposits in the Serdán-Oriental lacustrine basin, Trans-Mexican Volcanic Belt. Some of these deposits have been quarried, creating excellent exposures. In this paper we describe the domes and related products and interpret their mode of formation, reconstructing the main phases of the eruption as well as syn- and post-eruptive erosional processes. After an initial phreatomagmatic phase that built a tuff ring, the domes grew as an upheaved plug, lifting a thick sedimentary pile from the basin floor. During uplift, the domes collapsed repeatedly to form a first generation of hetero-lithologic hummocky debris avalanche deposits. Subsequent dome growth produced a thick talus and pyroclastic density currents. Later, the hydrothermally altered over-steepened dome peaks fell to generate second-generation, mono-lithologic avalanches. Subsequently, small domes grew in the collapse scars. From the end of the main eruptive episode onwards, heavy rains remobilized parts of the dome carapaces and talus, depositing lahar aprons. The Las Derrumbadas domes are still an important source of sediments in the basin, and ongoing mass-wasting processes are associated with hazards that should be assessed, given their potential impact on nearby populations.
Making sense of brittle deformation in rhyolitic lavas: Insights from Obsidian Dome, California, USA Open Access
Organic Matter and Molecular-Weight Distribution of Hydrocarbons in the Annenskoe Thermal Waters (Far East, Russia) Available to Purchase
Rhyolitic melt production in the midst of a continental arc flare-up—The heterogeneous Caspana ignimbrite of the Altiplano-Puna volcanic complex of the Central Andes Open Access
Mid-loaf crisis: Internal breadcrust surfaces in rhyolitic pyroclasts reveal dehydration quenching Available to Purchase
Models for Viscosity of Geological Melts Available to Purchase
Magnetite as a provenance and exploration tool for metamorphosed base-metal sulfide deposits in the Stollberg ore field, Bergslagen, Sweden Open Access
Biotite as a recorder of an exsolved Li-rich volatile phase in upper-crustal silicic magma reservoirs Open Access
Magmatic evolution and architecture of an arc-related, rhyolitic caldera complex: The late Pleistocene to Holocene Cerro Blanco volcanic complex, southern Puna, Argentina Open Access
Evaluating the Potential of Rhyolitic Glass as a Lithium Source for Brine Deposits Available to Purchase
Late Permian ultrapotassic rhyolites in SE Thailand: evidence for a Palaeotethyan continental rift basin Available to Purchase
A model for the kinetics of high-temperature reactions between polydisperse volcanic ash and SO 2 gas Available to Purchase
Distinguishing volcanic from impact glasses—The case of the Cali glass (Colombia) Open Access
Nonlinear effects of hydration on high-pressure sound velocities of rhyolitic glasses Available to Purchase
Chapter 2.2b Palmer Land and Graham Land volcanic groups (Antarctic Peninsula): petrology Available to Purchase
Abstract Large-volume rhyolitic volcanism along the proto-Pacific margin of Gondwana consists of three major episodes of magmatism or ‘flare-ups’. The initial episode (V1) overlaps with the Karoo–Ferrar large igneous provinces at c. 183 Ma. A second (V2) episode was erupted in the interval 171–167 Ma, and a third episode (V3) was emplaced in the interval 157–153 Ma. The magmatic events of the V1 and V2 episodes of the Antarctic Peninsula are reviewed here describing major and trace elements, and isotopic (Sr, Nd, O) data from rhyolitic volcanic rocks and more minor basaltic magmatism. An isotopically uniform intermediate magma developed as a result of anatexis of hydrous mafic lower crust, which can be linked to earlier, arc-related underplating. The subsequent lower-crust partial melts mixed with fractionated mafic underplate, followed by mid-crust storage and homogenization. Early Jurassic (V1) volcanic rocks of the southern Antarctic Peninsula are derived from the isotopically uniform magma, but they have mixed with melts of upper-crustal paragneiss in high-level magma chambers. The V2 rhyolites from the northern Antarctic Peninsula are the result of assimilation and fractional crystallization of the isotopically uniform magma. This process took place in upper-crust magma reservoirs involving crustal assimilants with an isotopic composition akin to that of the magma. A continental margin-arc setting was critical in allowing the development of an hydrous, fusible lower crust. Lower-crustal anatexis was in response to mafic underplating associated with the mantle plume thought to be responsible for the contemporaneous Karoo magmatic province and rifting associated with the initial break-up of Gondwana.