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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Arran (1)
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Asia
-
Far East
-
China
-
Guizhou China (1)
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Sichuan China (1)
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South China Block (1)
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-
Indonesia
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Sumatra
-
Toba Lake (1)
-
-
-
Japan
-
Honshu
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Asama (1)
-
-
-
Korea
-
South Korea (1)
-
-
Philippine Islands
-
Luzon
-
Mount Pinatubo (3)
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Taal (1)
-
-
-
-
Tibetan Plateau (1)
-
-
Australasia
-
New Zealand
-
Auckland volcanic field (1)
-
Okataina volcanic centre (1)
-
Rotorua New Zealand (1)
-
Tarawera volcanic complex (1)
-
Taupo (1)
-
Taupo volcanic zone (2)
-
-
-
Caledonides (1)
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Canada
-
Eastern Canada
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Quebec (1)
-
-
Western Canada
-
Yukon Territory (1)
-
-
-
Cascade Range (4)
-
Central America
-
Guatemala (1)
-
-
Copper River basin (1)
-
Crater Lake (1)
-
East Pacific Ocean Islands
-
Galapagos Islands
-
Fernandina (1)
-
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hualalai (1)
-
Kilauea (2)
-
Kohala (1)
-
Mauna Kea (1)
-
-
-
Mauna Loa (1)
-
-
-
Europe
-
Alps
-
Central Alps
-
Rhaetian Alps
-
Adamello Massif (1)
-
-
-
-
Pyrenees (1)
-
Southern Europe
-
Greece
-
Greek Aegean Islands
-
Cyclades
-
Santorin (1)
-
-
-
-
Iberian Peninsula
-
Spain
-
Catalonia Spain (1)
-
-
-
Italy
-
Campania Italy
-
Phlegraean Fields (1)
-
Vesuvius (3)
-
-
Lombardy Italy
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Adamello Massif (1)
-
-
-
-
Western Europe
-
Iceland
-
Krafla (1)
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United Kingdom
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Great Britain
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England (1)
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Scotland
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Hebrides
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Inner Hebrides
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Isle of Skye (1)
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-
-
Highland region Scotland
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Inverness-shire Scotland
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Isle of Skye (1)
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-
-
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Wales
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Caernarvonshire Wales
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Snowdonia (1)
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Gwynedd Wales
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Snowdonia (1)
-
-
-
-
-
-
-
International Ocean Discovery Program
-
Expedition 352
-
IODP Site U1439 (1)
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IODP Site U1440 (1)
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IODP Site U1441 (1)
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IODP Site U1442 (1)
-
-
-
Long Valley (1)
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Mediterranean region
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Aegean Islands
-
Greek Aegean Islands
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Cyclades
-
Santorin (1)
-
-
-
-
-
Mexico
-
Trans-Mexican volcanic belt (1)
-
-
North America
-
Basin and Range Province
-
Great Basin (1)
-
-
Canadian Shield
-
Superior Province
-
Abitibi Belt (1)
-
-
-
Rocky Mountains
-
Southern Rocky Mountains (1)
-
U. S. Rocky Mountains
-
San Juan Mountains (1)
-
-
-
Saint Elias Mountains (1)
-
-
North Island (3)
-
Oceania
-
Melanesia
-
Fiji (1)
-
-
Polynesia
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hualalai (1)
-
Kilauea (2)
-
Kohala (1)
-
Mauna Kea (1)
-
-
-
Mauna Loa (1)
-
-
Tonga (1)
-
-
-
Owens Valley (1)
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific
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Gulf of Alaska (1)
-
-
-
Equatorial Pacific (1)
-
North Pacific
-
Northeast Pacific
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Gulf of Alaska (1)
-
-
Northwest Pacific
-
Mariana Trough (1)
-
-
-
West Pacific
-
Northwest Pacific
-
Mariana Trough (1)
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-
-
-
Pacific region
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Circum-Pacific region (1)
-
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South America
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Andes (1)
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Chile
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Antofagasta Chile
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Lascar (1)
-
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Los Lagos Chile (1)
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Patagonia (1)
-
-
United States
-
Alaska
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Alaska Peninsula (3)
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Aleutian Islands (1)
-
Aniakchak (2)
-
Katmai (10)
-
Katmai National Park (6)
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Kodiak Island (1)
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Novarupta (8)
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Talkeetna Mountains (1)
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Valley of Ten Thousand Smokes (3)
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Wrangell Mountains (1)
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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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Long Valley Caldera (1)
-
-
Northern California (1)
-
-
Colorado
-
Saguache County Colorado (1)
-
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Great Basin (1)
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hualalai (1)
-
Kilauea (2)
-
Kohala (1)
-
Mauna Kea (1)
-
-
-
Mauna Loa (1)
-
-
Idaho
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Snake River plain (2)
-
-
Nevada
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Nye County Nevada
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Yucca Mountain (1)
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-
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Oregon (2)
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U. S. Rocky Mountains
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San Juan Mountains (1)
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Washington
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Mount Rainier National Park (1)
-
Pierce County Washington
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Mount Rainier (1)
-
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Skamania County Washington
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Mount Saint Helens (1)
-
-
Whatcom County Washington (1)
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-
Wyoming (1)
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Yellowstone National Park (3)
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-
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commodities
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metal ores
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copper ores (3)
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gold ores (2)
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lead ores (1)
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lead-zinc deposits (1)
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silver ores (1)
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zinc ores (1)
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-
mineral deposits, genesis (1)
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-
elements, isotopes
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carbon (1)
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chemical ratios (1)
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isotope ratios (6)
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isotopes
-
radioactive isotopes
-
Pb-206/Pb-204 (1)
-
Pb-207/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
-
stable isotopes
-
Fe-56/Fe-54 (1)
-
Mg-26/Mg-24 (1)
-
Pb-206/Pb-204 (1)
-
Pb-207/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
S-34/S-32 (1)
-
Sr-87/Sr-86 (3)
-
-
-
metals
-
alkaline earth metals
-
magnesium
-
Mg-26/Mg-24 (1)
-
-
strontium
-
Sr-87/Sr-86 (3)
-
-
-
copper (1)
-
gold (1)
-
iron
-
Fe-56/Fe-54 (1)
-
-
lead
-
Pb-206/Pb-204 (1)
-
Pb-207/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
-
manganese (1)
-
molybdenum (1)
-
rare earths (3)
-
-
noble gases
-
helium (2)
-
krypton (1)
-
neon (1)
-
xenon (1)
-
-
oxygen (3)
-
sulfur
-
S-34/S-32 (1)
-
-
-
fossils
-
Invertebrata
-
Protista
-
Radiolaria (1)
-
-
-
microfossils (2)
-
palynomorphs
-
acritarchs (1)
-
-
Plantae
-
Spermatophyta (1)
-
-
-
geochronology methods
-
Ar/Ar (5)
-
paleomagnetism (1)
-
Sm/Nd (1)
-
tephrochronology (2)
-
U/Pb (2)
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Holocene
-
lower Holocene (1)
-
upper Holocene (7)
-
-
Pleistocene
-
Bandelier Tuff (1)
-
Bishop Tuff (3)
-
upper Pleistocene (2)
-
-
-
Tertiary
-
Neogene
-
Miocene
-
Tiva Canyon Member (1)
-
-
Pliocene (2)
-
-
Paleogene
-
Eocene
-
Mirador Formation (1)
-
-
Oligocene
-
Fish Canyon Tuff (1)
-
-
Paleocene (1)
-
-
-
-
Mesozoic
-
Cretaceous (2)
-
Triassic
-
Lower Triassic
-
Permian-Triassic boundary (1)
-
-
-
-
Paleozoic
-
Ordovician
-
Upper Ordovician (1)
-
-
Permian
-
Upper Permian
-
Permian-Triassic boundary (1)
-
-
-
-
Precambrian
-
Archean
-
Neoarchean (1)
-
-
upper Precambrian
-
Proterozoic (1)
-
-
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks
-
diorites
-
quartz diorites (1)
-
-
granites (3)
-
-
porphyry
-
vitrophyre (1)
-
-
volcanic rocks
-
adakites (1)
-
andesites
-
boninite (1)
-
-
basalts
-
flood basalts (1)
-
tholeiitic basalt (1)
-
-
dacites (6)
-
glasses
-
volcanic glass (1)
-
-
pyroclastics
-
ash-flow tuff (1)
-
ignimbrite (15)
-
pumice (7)
-
tuff (5)
-
welded tuff (3)
-
-
rhyodacites (2)
-
rhyolites (10)
-
vitrophyre (1)
-
-
-
volcanic ash (5)
-
-
metamorphic rocks
-
metamorphic rocks
-
metasedimentary rocks (1)
-
metavolcanic rocks (1)
-
mylonites
-
pseudotachylite (1)
-
-
-
-
minerals
-
oxides
-
chrome spinel (1)
-
ilmenite (3)
-
iron oxides (2)
-
rutile (1)
-
titanium oxides (2)
-
titanomagnetite (3)
-
-
silicates
-
chain silicates
-
amphibole group
-
clinoamphibole
-
tschermakite (1)
-
-
-
pyroxene group
-
clinopyroxene
-
augite (1)
-
clinoenstatite (1)
-
pigeonite (1)
-
-
orthopyroxene
-
enstatite (1)
-
-
-
-
framework silicates
-
feldspar group
-
plagioclase
-
anorthite (1)
-
-
-
silica minerals
-
quartz (1)
-
-
-
orthosilicates
-
nesosilicates
-
olivine group
-
olivine (6)
-
-
titanite group
-
titanite (1)
-
-
zircon group
-
zircon (2)
-
-
-
sorosilicates
-
epidote group
-
epidote (1)
-
-
-
-
-
-
Primary terms
-
absolute age (6)
-
Asia
-
Far East
-
China
-
Guizhou China (1)
-
Sichuan China (1)
-
South China Block (1)
-
-
Indonesia
-
Sumatra
-
Toba Lake (1)
-
-
-
Japan
-
Honshu
-
Asama (1)
-
-
-
Korea
-
South Korea (1)
-
-
Philippine Islands
-
Luzon
-
Mount Pinatubo (3)
-
Taal (1)
-
-
-
-
Tibetan Plateau (1)
-
-
atmosphere (3)
-
Australasia
-
New Zealand
-
Auckland volcanic field (1)
-
Okataina volcanic centre (1)
-
Rotorua New Zealand (1)
-
Tarawera volcanic complex (1)
-
Taupo (1)
-
Taupo volcanic zone (2)
-
-
-
bibliography (1)
-
Canada
-
Eastern Canada
-
Quebec (1)
-
-
Western Canada
-
Yukon Territory (1)
-
-
-
carbon (1)
-
catalogs (1)
-
Cenozoic
-
Quaternary
-
Holocene
-
lower Holocene (1)
-
upper Holocene (7)
-
-
Pleistocene
-
Bandelier Tuff (1)
-
Bishop Tuff (3)
-
upper Pleistocene (2)
-
-
-
Tertiary
-
Neogene
-
Miocene
-
Tiva Canyon Member (1)
-
-
Pliocene (2)
-
-
Paleogene
-
Eocene
-
Mirador Formation (1)
-
-
Oligocene
-
Fish Canyon Tuff (1)
-
-
Paleocene (1)
-
-
-
-
Central America
-
Guatemala (1)
-
-
crust (5)
-
crystal growth (1)
-
data processing (2)
-
deformation (2)
-
earthquakes (10)
-
East Pacific Ocean Islands
-
Galapagos Islands
-
Fernandina (1)
-
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hualalai (1)
-
Kilauea (2)
-
Kohala (1)
-
Mauna Kea (1)
-
-
-
Mauna Loa (1)
-
-
-
Europe
-
Alps
-
Central Alps
-
Rhaetian Alps
-
Adamello Massif (1)
-
-
-
-
Pyrenees (1)
-
Southern Europe
-
Greece
-
Greek Aegean Islands
-
Cyclades
-
Santorin (1)
-
-
-
-
Iberian Peninsula
-
Spain
-
Catalonia Spain (1)
-
-
-
Italy
-
Campania Italy
-
Phlegraean Fields (1)
-
Vesuvius (3)
-
-
Lombardy Italy
-
Adamello Massif (1)
-
-
-
-
Western Europe
-
Iceland
-
Krafla (1)
-
-
United Kingdom
-
Great Britain
-
England (1)
-
Scotland
-
Hebrides
-
Inner Hebrides
-
Isle of Skye (1)
-
-
-
Highland region Scotland
-
Inverness-shire Scotland
-
Isle of Skye (1)
-
-
-
-
Wales
-
Caernarvonshire Wales
-
Snowdonia (1)
-
-
Gwynedd Wales
-
Snowdonia (1)
-
-
-
-
-
-
-
faults (8)
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folds (2)
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foliation (1)
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fractures (3)
-
geochemistry (10)
-
geomorphology (3)
-
geophysical methods (2)
-
glacial geology (2)
-
government agencies (1)
-
ground water (2)
-
heat flow (1)
-
igneous rocks
-
plutonic rocks
-
diorites
-
quartz diorites (1)
-
-
granites (3)
-
-
porphyry
-
vitrophyre (1)
-
-
volcanic rocks
-
adakites (1)
-
andesites
-
boninite (1)
-
-
basalts
-
flood basalts (1)
-
tholeiitic basalt (1)
-
-
dacites (6)
-
glasses
-
volcanic glass (1)
-
-
pyroclastics
-
ash-flow tuff (1)
-
ignimbrite (15)
-
pumice (7)
-
tuff (5)
-
welded tuff (3)
-
-
rhyodacites (2)
-
rhyolites (10)
-
vitrophyre (1)
-
-
-
inclusions
-
fluid inclusions (5)
-
-
intrusions (9)
-
Invertebrata
-
Protista
-
Radiolaria (1)
-
-
-
isotopes
-
radioactive isotopes
-
Pb-206/Pb-204 (1)
-
Pb-207/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
-
stable isotopes
-
Fe-56/Fe-54 (1)
-
Mg-26/Mg-24 (1)
-
Pb-206/Pb-204 (1)
-
Pb-207/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
S-34/S-32 (1)
-
Sr-87/Sr-86 (3)
-
-
-
lava (11)
-
lineation (1)
-
magmas (41)
-
mantle (4)
-
marine geology (1)
-
Mediterranean region
-
Aegean Islands
-
Greek Aegean Islands
-
Cyclades
-
Santorin (1)
-
-
-
-
-
Mesozoic
-
Cretaceous (2)
-
Triassic
-
Lower Triassic
-
Permian-Triassic boundary (1)
-
-
-
-
metal ores
-
copper ores (3)
-
gold ores (2)
-
lead ores (1)
-
lead-zinc deposits (1)
-
silver ores (1)
-
zinc ores (1)
-
-
metals
-
alkaline earth metals
-
magnesium
-
Mg-26/Mg-24 (1)
-
-
strontium
-
Sr-87/Sr-86 (3)
-
-
-
copper (1)
-
gold (1)
-
iron
-
Fe-56/Fe-54 (1)
-
-
lead
-
Pb-206/Pb-204 (1)
-
Pb-207/Pb-204 (1)
-
Pb-208/Pb-204 (1)
-
-
manganese (1)
-
molybdenum (1)
-
rare earths (3)
-
-
metamorphic rocks
-
metasedimentary rocks (1)
-
metavolcanic rocks (1)
-
mylonites
-
pseudotachylite (1)
-
-
-
metamorphism (1)
-
metasomatism (2)
-
Mexico
-
Trans-Mexican volcanic belt (1)
-
-
mineral deposits, genesis (1)
-
Mohorovicic discontinuity (1)
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Moon (1)
-
noble gases
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helium (2)
-
krypton (1)
-
neon (1)
-
xenon (1)
-
-
North America
-
Basin and Range Province
-
Great Basin (1)
-
-
Canadian Shield
-
Superior Province
-
Abitibi Belt (1)
-
-
-
Rocky Mountains
-
Southern Rocky Mountains (1)
-
U. S. Rocky Mountains
-
San Juan Mountains (1)
-
-
-
Saint Elias Mountains (1)
-
-
ocean floors (1)
-
Oceania
-
Melanesia
-
Fiji (1)
-
-
Polynesia
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hualalai (1)
-
Kilauea (2)
-
Kohala (1)
-
Mauna Kea (1)
-
-
-
Mauna Loa (1)
-
-
Tonga (1)
-
-
-
oceanography (1)
-
oxygen (3)
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific
-
Gulf of Alaska (1)
-
-
-
Equatorial Pacific (1)
-
North Pacific
-
Northeast Pacific
-
Gulf of Alaska (1)
-
-
Northwest Pacific
-
Mariana Trough (1)
-
-
-
West Pacific
-
Northwest Pacific
-
Mariana Trough (1)
-
-
-
-
Pacific region
-
Circum-Pacific region (1)
-
-
paleoclimatology (1)
-
paleoecology (1)
-
paleogeography (3)
-
paleomagnetism (1)
-
Paleozoic
-
Ordovician
-
Upper Ordovician (1)
-
-
Permian
-
Upper Permian
-
Permian-Triassic boundary (1)
-
-
-
-
palynomorphs
-
acritarchs (1)
-
-
paragenesis (1)
-
petrology (6)
-
phase equilibria (5)
-
Plantae
-
Spermatophyta (1)
-
-
plate tectonics (4)
-
Precambrian
-
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Katmai eruption 1912
Katmai volcanic cluster and the great eruption of 1912 Available to Purchase
Seismicity of the caldera-making eruption of Mount Katmai, Alaska in 1912 Available to Purchase
The Stratigraphy of the Ejecta from the 1912 Eruption of Mount Katmai and Novarupta, Alaska Available to Purchase
Nine principal layers of tephra have been distinguished in the vicinity of Mount Katmai and Novarupta. These were products of the 1912 eruption, and five of them represent major explosive events. Isopachous maps for four of the five layers show conclusively that they originated at Novarupta; while the thickness and coarseness of the other — the bottom layer — suggest that it could not have come from Mount Katmai, and that Novarupta is very probably its source also. The great tuff flow in the Valley of Ten Thousand Smokes may have started before the explosive phase of the 1912 eruption, but a major part of it was emplaced after the first cataclysmic eruption of rhyolite tephra. The banded pumices of the tephra deposits indicate the mixing of two magmas — rhyolitic and andesitic. The rhyolitic chamber underlies Novarupta, while the andesitic chamber underlies the chain of Mounts Katmai, Trident, Mageik, and Martin. Only the topmost layer of very fine tephra originated from the conduit at Mount Katmai. Its ejection was accompanied by the outpouring of the Katmai River tuff flow from a source within the crater and by the outpouring of a smaller, but similar, tuff flow down the western slope of Mount Katmai over glacier 3. A small steeply dipping welded tuff of the 1912 eruption occurs within the crater along the western wall. Its presence there, together with the outpouring of tuff flows down the flanks of the volcano at a very late stage of the eruptive activity, indicate that the summit of Mount Katmai collapsed slowly during the entire period of the 1912 eruption and that the crater only reached its final dimensions after almost all activity ceased. The summit of Mount Katmai was supported during most of the eruption by a column of magma, whose upper part must have been at or close to the surface, but which did not erupt until all activity ceased at the principal source, Novarupta. This suggests that the two conduits were intimately connected throughout most of the 1912 eruption, but were finally separated near the end. The sequence of rhyolite, mixed magma, and rhyolite from the conduit at Novarupta also supports this hypothesis. The 2.6 cubic miles of tuff flow in the Valley of Ten Thousand Smokes reduces to 1.5 cubic miles of solid andesite, almost exactly equal to the volume of the crater and missing summit of Mount Katmai. This equivalence is probably fortuitous, however, because there is no apparent compensation anywhere for much of the 4.75 cubic miles of tephra (approximately 1.9 cubic miles of solid rock).
Distribution density histograms and log-normal probability density function... Open Access
Eruptive history of Mount Katmai, Alaska Open Access
Multiple Seismogenic Processes for High-Frequency Earthquakes at Katmai National Park, Alaska: Evidence from Stress Tensor Inversions of Fault-Plane Solutions Available to Purchase
Tephrochronology of the Brooks River Archaeological District, Katmai National Park and Preserve, Alaska: what can and cannot be done with tephra deposits Available to Purchase
Abstract The Brooks River Archaeological District (BRAD) in Katmai National Park and Preserve is a classical site for the study of early humans in Alaska. Because of proximity to the active Aleutian volcanic arc, there are numerous tephra deposits in the BRAD, which are potentially useful for correlating among sites of archaeological investigations. Microprobe analyses of glass separates show, however, that most of these tephra deposits are heterogeneous mixtures of multiple glass populations. Some glasses are highly similar to pyroclasts of Aniakchak Crater (160 km to the south), others are similar to pyroclasts in the nearby Valley of Ten Thousand Smokes, and some are similar to no other tephra samples from the Alaska Peninsula. Moreover, tephra deposits in any one archaeological study site are not always similar to those from nearby sites, indicating inconsistent preservation of these mainly thin, fine-grained deposits. At least 15, late Holocene tephra deposits are inferred at the BRAD. Their heterogeneity is the result of either eruptions of mixed or heterogeneous magmas, like the 1912 Katmai eruption, or secondary mixing of closely succeeding tephra deposits. Because most cannot be reliably distinguished from one another on the basis of megascopic properties, their utility for correlations is limited. At least one deposit can be reliably identified because of its thickness (10 cm) and colour stratification. Early humans seem not to have been significantly affected by these tephra falls, which is not surprising in view of the resilience exhibited by both plants and animals following the 1912 Katmai eruption.