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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Southern Africa
-
Lesotho (1)
-
South Africa (1)
-
-
-
Arctic Ocean
-
Norwegian Sea
-
Kolbeinsey Ridge (1)
-
Voring Plateau (1)
-
-
-
Asia
-
Far East
-
China
-
Heilongjiang China (1)
-
Inner Mongolia China (1)
-
Jilin China (1)
-
Songliao Basin (1)
-
-
Indonesia
-
Java
-
Galunggung (1)
-
-
Sumatra
-
Toba Lake (1)
-
-
-
Japan
-
Honshu
-
Japanese Alps
-
Hida Mountains (1)
-
-
-
-
Mongolia
-
Hangay Mountains (1)
-
-
Taiwan (1)
-
-
Indian Peninsula
-
India
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Andhra Pradesh India
-
Cuddapah Basin (3)
-
-
Bastar Craton (1)
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Bihar India (1)
-
Dharwar Craton (1)
-
Jharkhand India
-
Singhbhum India (1)
-
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Karnataka India (1)
-
Rajasthan India
-
Pali India (1)
-
Udaipur India (1)
-
-
-
-
Middle East
-
Turkey (1)
-
-
Siberia (1)
-
-
Atlantic Ocean
-
North Atlantic (1)
-
-
Atlantic Ocean Islands
-
Faeroe Islands (1)
-
-
Austral Basin (1)
-
Australasia
-
Australia
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New South Wales Australia
-
Orange Australia (1)
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Yeoval Australia (1)
-
-
South Australia (1)
-
Western Australia
-
Kambalda Australia (1)
-
-
-
New Zealand
-
Taupo (2)
-
-
-
Canada
-
Eastern Canada
-
Maritime Provinces
-
Nova Scotia
-
Annapolis County Nova Scotia (1)
-
Digby County Nova Scotia (1)
-
Kings County Nova Scotia (1)
-
-
-
Quebec
-
Gaspe Peninsula (1)
-
-
-
-
Cascade Range (1)
-
Commonwealth of Independent States
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Russian Federation (1)
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-
East Pacific Ocean Islands
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Hawaii
-
Hawaii County Hawaii
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Hawaii Island
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Kilauea (2)
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Mauna Kea (1)
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Puu Oo (1)
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-
-
Mauna Loa (3)
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-
-
Europe
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Southern Europe
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Italy
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Sicily Italy
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Lipari Islands
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Lipari Island (1)
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Stromboli (2)
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Mount Etna (1)
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Western Europe
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Iceland
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Grimsvotn (1)
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Krafla (1)
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Ireland (1)
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United Kingdom
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Great Britain
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England
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Durham England (1)
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Northumberland England (1)
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Scotland
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Argyllshire Scotland
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Mull Island (1)
-
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Hebrides
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Inner Hebrides
-
Mull Island (1)
-
-
-
-
-
-
-
-
Indian Ocean (1)
-
International Ocean Discovery Program (1)
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North America
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Basin and Range Province (1)
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Rocky Mountains
-
U. S. Rocky Mountains
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San Juan Mountains (1)
-
-
-
-
North Island (2)
-
Oceania
-
Polynesia
-
Hawaii
-
Hawaii County Hawaii
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Hawaii Island
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Kilauea (2)
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Mauna Kea (1)
-
Puu Oo (1)
-
-
-
Mauna Loa (3)
-
-
-
-
ODP Site 642 (1)
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Pacific Ocean
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East Pacific
-
Northeast Pacific
-
Juan de Fuca Ridge
-
Cleft Segment (1)
-
-
Loihi Seamount (1)
-
-
-
North Pacific
-
Northeast Pacific
-
Juan de Fuca Ridge
-
Cleft Segment (1)
-
-
Loihi Seamount (1)
-
-
Northwest Pacific
-
Izu-Bonin Arc (1)
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Sumisu Rift (1)
-
-
-
South Pacific
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Southwest Pacific
-
Bismarck Sea
-
Manus Basin (1)
-
-
-
-
West Pacific
-
Northwest Pacific
-
Izu-Bonin Arc (1)
-
Sumisu Rift (1)
-
-
Southwest Pacific
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Bismarck Sea
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Manus Basin (1)
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-
-
-
-
Pasco Basin (2)
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South America
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Argentina
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Neuquen Basin (1)
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Brazil
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Rio Grande do Sul Brazil (2)
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Chile (2)
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Parana Basin (1)
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Taranaki Basin (1)
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United States
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Alaska
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Novarupta (1)
-
-
Arizona
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Apache County Arizona (1)
-
-
California
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Inyo County California
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Inyo Mountains (1)
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-
Mono County California
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Inyo Domes (1)
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Obsidian Dome (1)
-
-
-
Colorado
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Mesa County Colorado (1)
-
-
Colorado Plateau (4)
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Kilauea (2)
-
Mauna Kea (1)
-
Puu Oo (1)
-
-
-
Mauna Loa (3)
-
-
Nevada
-
Churchill County Nevada (1)
-
Eureka County Nevada (1)
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Lander County Nevada (1)
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Nye County Nevada (1)
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Pershing County Nevada (1)
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New Jersey
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Morris County New Jersey (1)
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Passaic County New Jersey (2)
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Watchung Mountains (2)
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New Mexico
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Jemez Mountains (1)
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Sandoval County New Mexico (1)
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Valles Caldera (1)
-
-
Newark Basin (1)
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Oregon (1)
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U. S. Rocky Mountains
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San Juan Mountains (1)
-
-
Utah
-
Piute County Utah
-
Marysvale Utah (1)
-
-
-
Washington
-
Benton County Washington (2)
-
Chelan County Washington (1)
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Hanford Site (2)
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Skamania County Washington
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Mount Saint Helens (1)
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-
-
-
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commodities
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energy sources (2)
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gems (3)
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geothermal energy (3)
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glass materials (3)
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metal ores
-
copper ores (2)
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gold ores (1)
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iron ores (1)
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nickel ores (1)
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platinum ores (2)
-
-
mineral deposits, genesis (4)
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mineral exploration (2)
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petroleum
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natural gas (2)
-
-
water resources (1)
-
-
elements, isotopes
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carbon
-
C-13/C-12 (1)
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-
halogens
-
chlorine (1)
-
-
hydrogen (1)
-
isotope ratios (1)
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isotopes
-
stable isotopes
-
C-13/C-12 (1)
-
O-18/O-16 (2)
-
-
-
large-ion lithophile elements (1)
-
metals
-
alkaline earth metals
-
beryllium (1)
-
-
copper (1)
-
gold (1)
-
iron
-
ferric iron (1)
-
ferrous iron (1)
-
-
platinum group
-
iridium (1)
-
palladium (1)
-
platinum (1)
-
platinum ores (2)
-
rhodium (1)
-
ruthenium (1)
-
-
rare earths (2)
-
-
oxygen
-
O-18/O-16 (2)
-
-
sulfur (2)
-
-
geochronology methods
-
Ar/Ar (3)
-
paleomagnetism (1)
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Pleistocene
-
upper Pleistocene (1)
-
-
-
Tertiary
-
Neogene
-
Miocene
-
Columbia River Basalt Group (3)
-
Frenchman Springs Member (1)
-
Grande Ronde Basalt (3)
-
Wanapum Basalt (1)
-
-
Pliocene (1)
-
-
Paleogene (1)
-
-
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous (1)
-
-
Jurassic
-
Lower Jurassic (1)
-
-
Serra Geral Formation (2)
-
-
Paleozoic
-
Carboniferous (1)
-
Devonian
-
Lower Devonian (1)
-
Old Red Sandstone (1)
-
-
Ordovician (1)
-
Permian (1)
-
-
Precambrian
-
Archean
-
Aravalli System (1)
-
Mesoarchean (1)
-
Neoarchean (1)
-
-
Delhi Supergroup (1)
-
Pongola Supergroup (1)
-
upper Precambrian
-
Proterozoic
-
Neoproterozoic (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
peperite (1)
-
plutonic rocks
-
diabase (4)
-
gabbros (1)
-
granites
-
S-type granites (1)
-
-
pegmatite (3)
-
-
volcanic rocks
-
andesites (4)
-
basalts
-
alkali basalts
-
spilite (1)
-
-
flood basalts (6)
-
mid-ocean ridge basalts (2)
-
tholeiitic basalt (1)
-
-
dacites
-
dacite porphyry (1)
-
-
glasses
-
obsidian (2)
-
volcanic glass (4)
-
-
komatiite (3)
-
pyroclastics
-
ignimbrite (3)
-
pumice (7)
-
scoria (2)
-
tuff (3)
-
-
rhyolites (5)
-
-
-
volcanic ash (4)
-
-
metamorphic rocks
-
metamorphic rocks
-
metasedimentary rocks (1)
-
metasomatic rocks
-
greisen (1)
-
skarn (1)
-
-
mylonites
-
pseudotachylite (2)
-
-
schists
-
greenstone (1)
-
-
-
-
meteorites
-
meteorites
-
micrometeorites (1)
-
stony meteorites
-
achondrites
-
HED meteorites (1)
-
howardite (1)
-
-
chondrites
-
carbonaceous chondrites
-
CM chondrites (1)
-
CV chondrites (1)
-
-
-
-
-
-
minerals
-
alloys (1)
-
carbonates
-
calcite (2)
-
magnesian calcite (1)
-
-
minerals (1)
-
oxides
-
spinel (1)
-
-
silicates
-
chain silicates
-
prehnite (1)
-
pyroxene group
-
clinopyroxene
-
augite (1)
-
-
orthopyroxene
-
enstatite (1)
-
-
-
-
framework silicates
-
feldspar group
-
plagioclase (5)
-
-
silica minerals
-
amethyst (2)
-
chalcedony (1)
-
quartz (2)
-
-
-
magnesian silicates (1)
-
orthosilicates
-
nesosilicates
-
olivine group
-
forsterite (1)
-
olivine (3)
-
-
-
-
ring silicates
-
aquamarine (1)
-
beryl (1)
-
-
sheet silicates
-
chlorite group
-
chlorite (1)
-
-
serpentine group
-
serpentine (1)
-
-
-
-
sulfates
-
anhydrite (1)
-
-
sulfides (2)
-
-
Primary terms
-
absolute age (3)
-
Africa
-
Southern Africa
-
Lesotho (1)
-
South Africa (1)
-
-
-
Arctic Ocean
-
Norwegian Sea
-
Kolbeinsey Ridge (1)
-
Voring Plateau (1)
-
-
-
Asia
-
Far East
-
China
-
Heilongjiang China (1)
-
Inner Mongolia China (1)
-
Jilin China (1)
-
Songliao Basin (1)
-
-
Indonesia
-
Java
-
Galunggung (1)
-
-
Sumatra
-
Toba Lake (1)
-
-
-
Japan
-
Honshu
-
Japanese Alps
-
Hida Mountains (1)
-
-
-
-
Mongolia
-
Hangay Mountains (1)
-
-
Taiwan (1)
-
-
Indian Peninsula
-
India
-
Andhra Pradesh India
-
Cuddapah Basin (3)
-
-
Bastar Craton (1)
-
Bihar India (1)
-
Dharwar Craton (1)
-
Jharkhand India
-
Singhbhum India (1)
-
-
Karnataka India (1)
-
Rajasthan India
-
Pali India (1)
-
Udaipur India (1)
-
-
-
-
Middle East
-
Turkey (1)
-
-
Siberia (1)
-
-
Atlantic Ocean
-
North Atlantic (1)
-
-
Atlantic Ocean Islands
-
Faeroe Islands (1)
-
-
Australasia
-
Australia
-
New South Wales Australia
-
Orange Australia (1)
-
Yeoval Australia (1)
-
-
South Australia (1)
-
Western Australia
-
Kambalda Australia (1)
-
-
-
New Zealand
-
Taupo (2)
-
-
-
Canada
-
Eastern Canada
-
Maritime Provinces
-
Nova Scotia
-
Annapolis County Nova Scotia (1)
-
Digby County Nova Scotia (1)
-
Kings County Nova Scotia (1)
-
-
-
Quebec
-
Gaspe Peninsula (1)
-
-
-
-
carbon
-
C-13/C-12 (1)
-
-
Cenozoic
-
Quaternary
-
Pleistocene
-
upper Pleistocene (1)
-
-
-
Tertiary
-
Neogene
-
Miocene
-
Columbia River Basalt Group (3)
-
Frenchman Springs Member (1)
-
Grande Ronde Basalt (3)
-
Wanapum Basalt (1)
-
-
Pliocene (1)
-
-
Paleogene (1)
-
-
-
crystal chemistry (3)
-
crystal growth (2)
-
crystal structure (1)
-
crystallography (1)
-
data processing (1)
-
deformation (2)
-
diagenesis (2)
-
East Pacific Ocean Islands
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Kilauea (2)
-
Mauna Kea (1)
-
Puu Oo (1)
-
-
-
Mauna Loa (3)
-
-
-
economic geology (1)
-
energy sources (2)
-
engineering geology (2)
-
epeirogeny (1)
-
Europe
-
Southern Europe
-
Italy
-
Sicily Italy
-
Lipari Islands
-
Lipari Island (1)
-
Stromboli (2)
-
-
Mount Etna (1)
-
-
-
-
Western Europe
-
Iceland
-
Grimsvotn (1)
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Krafla (1)
-
-
Ireland (1)
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United Kingdom
-
Great Britain
-
England
-
Durham England (1)
-
Northumberland England (1)
-
-
Scotland
-
Argyllshire Scotland
-
Mull Island (1)
-
-
Hebrides
-
Inner Hebrides
-
Mull Island (1)
-
-
-
-
-
-
-
-
faults (3)
-
fractures (5)
-
gems (3)
-
geochemistry (10)
-
geomorphology (1)
-
geophysical methods (2)
-
geothermal energy (3)
-
ground water (1)
-
hydrogen (1)
-
igneous rocks
-
peperite (1)
-
plutonic rocks
-
diabase (4)
-
gabbros (1)
-
granites
-
S-type granites (1)
-
-
pegmatite (3)
-
-
volcanic rocks
-
andesites (4)
-
basalts
-
alkali basalts
-
spilite (1)
-
-
flood basalts (6)
-
mid-ocean ridge basalts (2)
-
tholeiitic basalt (1)
-
-
dacites
-
dacite porphyry (1)
-
-
glasses
-
obsidian (2)
-
volcanic glass (4)
-
-
komatiite (3)
-
pyroclastics
-
ignimbrite (3)
-
pumice (7)
-
scoria (2)
-
tuff (3)
-
-
rhyolites (5)
-
-
-
inclusions
-
fluid inclusions (1)
-
-
Indian Ocean (1)
-
Integrated Ocean Drilling Program
-
Expeditions 303/306
-
Expedition 306 (1)
-
-
-
intrusions (9)
-
isotopes
-
stable isotopes
-
C-13/C-12 (1)
-
O-18/O-16 (2)
-
-
-
lava (28)
-
magmas (32)
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous (1)
-
-
Jurassic
-
Lower Jurassic (1)
-
-
Serra Geral Formation (2)
-
-
metal ores
-
copper ores (2)
-
gold ores (1)
-
iron ores (1)
-
nickel ores (1)
-
platinum ores (2)
-
-
metals
-
alkaline earth metals
-
beryllium (1)
-
-
copper (1)
-
gold (1)
-
iron
-
ferric iron (1)
-
ferrous iron (1)
-
-
platinum group
-
iridium (1)
-
palladium (1)
-
platinum (1)
-
platinum ores (2)
-
rhodium (1)
-
ruthenium (1)
-
-
rare earths (2)
-
-
metamorphic rocks
-
metasedimentary rocks (1)
-
metasomatic rocks
-
greisen (1)
-
skarn (1)
-
-
mylonites
-
pseudotachylite (2)
-
-
schists
-
greenstone (1)
-
-
-
metamorphism (4)
-
metasomatism (4)
-
meteorites
-
micrometeorites (1)
-
stony meteorites
-
achondrites
-
HED meteorites (1)
-
howardite (1)
-
-
chondrites
-
carbonaceous chondrites
-
CM chondrites (1)
-
CV chondrites (1)
-
-
-
-
-
mineral deposits, genesis (4)
-
mineral exploration (2)
-
minerals (1)
-
North America
-
Basin and Range Province (1)
-
Rocky Mountains
-
U. S. Rocky Mountains
-
San Juan Mountains (1)
-
-
-
-
Ocean Drilling Program
-
Leg 104 (1)
-
Leg 193 (1)
-
-
ocean floors (2)
-
Oceania
-
Polynesia
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Kilauea (2)
-
Mauna Kea (1)
-
Puu Oo (1)
-
-
-
Mauna Loa (3)
-
-
-
-
oceanography (1)
-
oxygen
-
O-18/O-16 (2)
-
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific
-
Juan de Fuca Ridge
-
Cleft Segment (1)
-
-
Loihi Seamount (1)
-
-
-
North Pacific
-
Northeast Pacific
-
Juan de Fuca Ridge
-
Cleft Segment (1)
-
-
Loihi Seamount (1)
-
-
Northwest Pacific
-
Izu-Bonin Arc (1)
-
Sumisu Rift (1)
-
-
-
South Pacific
-
Southwest Pacific
-
Bismarck Sea
-
Manus Basin (1)
-
-
-
-
West Pacific
-
Northwest Pacific
-
Izu-Bonin Arc (1)
-
Sumisu Rift (1)
-
-
Southwest Pacific
-
Bismarck Sea
-
Manus Basin (1)
-
-
-
-
-
paleoclimatology (1)
-
paleogeography (6)
-
paleomagnetism (1)
-
Paleozoic
-
Carboniferous (1)
-
Devonian
-
Lower Devonian (1)
-
Old Red Sandstone (1)
-
-
Ordovician (1)
-
Permian (1)
-
-
petroleum
-
natural gas (2)
-
-
petrology (9)
-
plate tectonics (1)
-
Precambrian
-
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
vesicular texture
Lava flow-hosted reservoirs: a review Open Access
Abstract Lava flows form important fluid reservoirs and have been extensively exploited for water aquifers, geothermal energy, hydrocarbon production and, more recently, for carbon storage. Effusive subaerial mafic to intermediate lava flows account for vast rock volumes globally, and form reservoirs with properties dictated by well-known lava flow facies ranging from pāhoehoe through several transitional forms to ‘a’ā lava. These variations in flow type lead to critical differences in the pore structure, distribution, connectivity, strength and fracturing of individual lava flows, which, alongside lava flow package architectures, determine primary reservoir potential. Lava flow margins with vesicular, fracture and often autobreccia-hosted pore structures can have porosities commonly exceeding 40% and matrix permeabilities over 10 −11 m 2 (>10 D) separated by much lower porosity and permeability flow interiors. Secondary post-emplacement physicochemical changes related to fracturing, meteoric, diagenetic and hydrothermal alteration can significantly modify reservoir potential through a complex interplay of mineral transformation, pore-clogging secondary minerals and dissolution, which must be carefully characterized and assessed during exploration and appraisal. Within this contribution, a review of selected global lava flow-hosted reservoir occurrences is presented, followed by a discussion of the factors that influence lava flow reservoir potential.
The architecture of basalt reservoirs in the North Atlantic Igneous Province with implications for basalt carbon sequestration Open Access
Abstract Offshore CO 2 sequestration in basaltic formations of the North Atlantic Igneous Province may allow permanent storage of large volumes of CO 2 through rapid carbonate mineralization. Characterizing the internal architecture of such reservoirs is key to assessing the storage potential. In this study, six photogrammetry models and three boreholes on the Faroe Islands have been used to characterize the internal lava sequence architectures as a direct analogue to potential offshore North Atlantic Igneous Province storage sites. The studied formations are dominated by c. 5 to 50 m thick simple and compound lava flows, with drill core observations documenting a transition from pāhoehoe moving towards ‘a’ā lava flow types interbedded with thin (<5 m thick) volcaniclastic rock units. The identification of flow margin breccias is potentially important as these units form excellent reservoirs in several other localities globally. Stacked, thick simple flows may present sealing units associated with dense flow interiors. Connected porous and permeable lava flow crusts present potential reservoirs; however, the degree of secondary mineralization and alteration can alter initially good reservoir units to impermeable barriers for fluid flow. Large-scale reservoir volumes may be present mainly within both vesicular, fractured pāhoehoe and brecciated flow margins of transitional simple lava flows.
Pāhoehoe lava emplacement in Lon Reudle, Mull Available to Purchase
A Field Based Perspective of the Volcanism in Tadpatri Formation of Proterozoic Cuddapah Basin, India: An Analog of the Deccan Traps? Available to Purchase
Processes controlling volcanic and epiclastic reservoir formation in a buried polygenetic stratocone Available to Purchase
Abstract Understanding the formation of volcanic and epiclastic reservoirs is pivotal for exploring geoenergy resources such as geothermal energy, hydrocarbons, and new CO 2 sequestration and hydrogen storage opportunities. This paper examines the processes controlling the quality of pyroclastic and epiclastic reservoirs of the Kora volcano, an extinct stratocone presently buried in the offshore Taranaki Basin, New Zealand. We conduct detailed seismic reflection interpretation, drillcore lithofacies and wireline-log description, petrographic analysis, and analytical tests to generate a unified framework that explains the formation of volcaniclastic reservoirs from basin to pore-scale. Each stage of construction and degradation of the Kora volcano is associated with particular processes that increase or reduce reservoir quality. Primary processes include quench fragmentation, deuteric mineral dissolution, and epiclastic sedimentation. Secondary processes comprise mineral alteration (mainly meteoric; minor hydrothermal and diagenetic), mechanical stress fracturing (mainly tectonic; minor magmatic and burial deformation), and pervasive biogenic cementation. Epiclastic conglomerates present the highest reservoir quality (average 23% porosity and up to 997 mD permeability), followed by lapilli-tuffs and tuff-breccias. In contrast, bioclastic epiclastic sandstones are typically cemented by carbonates and pyrite. Our models and interpretations will increase understanding of the formation of volcaniclastic reservoirs and aid exploration of geoenergy resources in volcanic terrains.
Mid-loaf crisis: Internal breadcrust surfaces in rhyolitic pyroclasts reveal dehydration quenching Available to Purchase
Magma Fragmentation Available to Purchase
Frictional Melting in Magma and Lava Available to Purchase
Petrogenesis of Neoarchean Mangikhuta Volcanic Complex, Dongargarh Supergroup, Central India: Insights from Relict Clinopyroxene Chemistry Available to Purchase
Oxide-Sulfide-Melt-Bubble Interactions in Spinel-Rich Taxitic Rocks of the Norilsk-Talnakh Intrusions, Polar Siberia Available to Purchase
Can nanolites enhance eruption explosivity? Open Access
Vapor Transport and Deposition of Cu-Sn-Co-Ag Alloys in Vesicles in Mafic Volcanic Rocks Open Access
Physical constraints for effective magma-water interaction along volcanic conduits during silicic explosive eruptions: COMMENT Open Access
The interplay among clast size, vesicularity, postfragmentation expansion, and clast breakage: An example from the 1.8 ka Taupo eruption Available to Purchase
ABSTRACT Field studies of tephra-fall deposits traditionally use the density of juvenile pyroclasts to determine vesicularity of the host magma at the point of fragmentation. A range of pyroclast sizes between 16 and 32 mm has commonly been chosen for this purpose. Larger pyroclasts outside this range may undergo postfragmentation vesiculation due to slow cooling of the interior of the clasts, while smaller pyroclasts may be too small to represent accurately the distribution of the largest vesicles. The assumption of this method, of course, is that the 16–32 mm size range is representative of the fragmented magma. We explore, in detail, variations in density over a size range of 4–128 mm from Unit 2 pyroclasts of the 1.8 ka Taupo eruption and make inferences about the roles of postfragmentation vesiculation and secondary breakage of pyroclasts. We find (1) there is a clear threshold for onset of postfragmentation vesiculation at >32 mm, and (2) there are broken small pieces of the largest pyroclasts in the sample that artificially skew the density distribution for smaller size fractions. We constrain uncertainty associated with vesicularity measurements and offer best-practice recommendations in the hope of improving consistency of field sampling and laboratory processing of pyroclast populations for vesicularity studies.