Skip Nav Destination
volcanic ash
Update search
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Central Africa
-
Congo (1)
-
-
East Africa
-
Ethiopia
-
Hadar (1)
-
Omo River (1)
-
Omo Valley (1)
-
-
Ethiopian Rift (1)
-
Kenya
-
Kenya Rift valley (1)
-
-
Lake Turkana (1)
-
Tanzania
-
Laetoli (2)
-
Oldoinyo Lengai (1)
-
Olduvai Gorge (1)
-
-
Turkana Basin (1)
-
-
East African Lakes
-
Lake Turkana (1)
-
-
Nile River (1)
-
Southern Africa
-
Karoo Basin (1)
-
Namibia (1)
-
South Africa
-
Cape Province region (1)
-
Mpumalanga South Africa
-
Barberton South Africa (1)
-
-
Transvaal region (1)
-
-
-
-
Altiplano (1)
-
Antarctica
-
Antarctic ice sheet
-
East Antarctic ice sheet (2)
-
-
Antarctic Peninsula
-
Graham Land (1)
-
-
East Antarctica (1)
-
Marie Byrd Land
-
Byrd Station (1)
-
-
Transantarctic Mountains (3)
-
Victoria Land
-
McMurdo dry valleys (1)
-
-
-
Arctic Ocean
-
Amerasia Basin (1)
-
Norwegian Sea
-
Jan Mayen Ridge (1)
-
-
-
Arctic region
-
Greenland (1)
-
Jan Mayen (1)
-
-
Arran (1)
-
Asia
-
Arabian Peninsula
-
Oman (1)
-
-
Far East
-
China
-
Guangxi China (1)
-
Guizhou China (2)
-
Hunan China (1)
-
Nanpanjiang Basin (1)
-
Ordos Basin (1)
-
Sichuan China (1)
-
South China Block (3)
-
Xinjiang China
-
Junggar Basin (1)
-
-
Yangtze Platform (1)
-
Yunnan China (1)
-
-
Indonesia
-
Java
-
Galunggung (1)
-
Merapi (1)
-
-
Krakatoa (1)
-
Sumatra
-
Toba Lake (4)
-
-
-
Japan
-
Hokkaido
-
Tokachi (1)
-
Usu (1)
-
-
Honshu
-
Izu-shichito (1)
-
-
Kyushu
-
Kagoshima Japan
-
Sakura-jima (4)
-
-
-
-
Philippine Islands
-
Luzon
-
Mount Pinatubo (3)
-
-
-
-
Himalayas (1)
-
Indian Peninsula
-
Pakistan (1)
-
-
Kamchatka Russian Federation
-
Kamchatka Peninsula (1)
-
-
Middle East
-
Iraq (1)
-
Jordan (1)
-
Mesopotamia (1)
-
-
Okhotsk-Chukchi volcanic belt (1)
-
Russian Pacific region (1)
-
Sakhalin Russian Federation
-
Sakhalin (1)
-
-
-
Atlantic Ocean
-
North Atlantic
-
Baltic Sea
-
Gulf of Riga (1)
-
-
Barbados Ridge (1)
-
Blake-Bahama Basin (1)
-
Caribbean Sea (1)
-
Goban Spur (1)
-
Hatteras abyssal plain (1)
-
Labrador Sea (1)
-
North Sea (2)
-
Northeast Atlantic (1)
-
-
-
Atlantic Ocean Islands
-
Azores
-
Faial Island
-
Capelinhos (1)
-
-
-
Canary Islands
-
Hierro (1)
-
-
Faeroe Islands (1)
-
-
Australasia
-
Australia
-
Tasmania Australia (1)
-
Western Australia
-
Hamersley Range (2)
-
-
-
New Zealand
-
Otago New Zealand (1)
-
Rotorua New Zealand (1)
-
Tarawera volcanic complex (1)
-
Taupo volcanic zone (2)
-
Torlesse Terrane (1)
-
Waikato Basin (1)
-
-
-
Avalon Zone (1)
-
Baffin Bay (1)
-
Cache Valley (1)
-
Canada
-
Arctic Archipelago (2)
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick
-
Saint John County New Brunswick
-
Saint John New Brunswick (1)
-
-
-
Nova Scotia
-
Hants County Nova Scotia (1)
-
-
-
Quebec
-
Gaspe Peninsula (1)
-
-
-
Nunavut
-
Ellesmere Island
-
Fosheim Peninsula (1)
-
-
Sverdrup Basin (2)
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
Ellef Ringnes Island (1)
-
-
-
Queen Elizabeth Islands
-
Ellesmere Island
-
Fosheim Peninsula (1)
-
-
Sverdrup Basin (2)
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
Ellef Ringnes Island (1)
-
-
-
Western Canada
-
Alberta
-
Banff National Park (2)
-
Drumheller Alberta (1)
-
Jasper National Park (2)
-
-
British Columbia (8)
-
Canadian Cordillera (1)
-
Canadian Rocky Mountains (2)
-
Crowsnest Pass (1)
-
Northwest Territories
-
Norman Wells Northwest Territories (1)
-
-
Saskatchewan (2)
-
Yukon Territory (5)
-
-
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
-
Jamaica (4)
-
-
Lesser Antilles
-
Barbados (1)
-
Martinique
-
Mount Pelee (2)
-
-
Montserrat Island
-
Soufriere Hills (2)
-
-
Saint Vincent (1)
-
Soufriere (2)
-
-
-
-
-
Cascade Range (10)
-
Central America
-
Costa Rica (1)
-
El Salvador
-
San Salvador El Salvador (1)
-
-
Guatemala
-
Pacaya (1)
-
-
Honduras (1)
-
Nicaragua
-
Managua Nicaragua (1)
-
-
-
Central Cordillera (1)
-
Cerro Negro (1)
-
Chicxulub Crater (1)
-
Clear Lake (1)
-
Colorado River (1)
-
Commonwealth of Independent States
-
Russian Federation
-
Kamchatka Russian Federation
-
Kamchatka Peninsula (1)
-
-
Okhotsk-Chukchi volcanic belt (1)
-
Russian Pacific region (1)
-
Sakhalin Russian Federation
-
Sakhalin (1)
-
-
-
Ukraine
-
Podolia (2)
-
-
-
Cook Inlet (1)
-
Copper Canyon (1)
-
Crater Lake (2)
-
Death Valley (1)
-
East Pacific Ocean Islands
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Kilauea (2)
-
-
-
-
-
Elk River (1)
-
Europe
-
Alps
-
Eastern Alps
-
Dolomites
-
Latemar Massif (1)
-
-
-
-
Baltic region
-
Estonia
-
Saaremaa (1)
-
-
Latvia (1)
-
Lithuania (1)
-
-
Central Europe
-
Germany (1)
-
Poland
-
Swiety Krzyz Mountains (1)
-
-
-
Southern Europe
-
Greece
-
Crete (1)
-
Greek Aegean Islands
-
Cyclades
-
Santorin (1)
-
Thera (3)
-
-
-
Hellenic Arc (1)
-
-
Iberian Peninsula
-
Spain (2)
-
-
Italy
-
Campania Italy
-
Naples Italy
-
Ischia (1)
-
-
Vesuvius (1)
-
-
Sicily Italy
-
Catania Italy (1)
-
Lipari Islands
-
Stromboli (1)
-
-
Mount Etna (3)
-
-
Trentino-Alto Adige Italy
-
Latemar Massif (1)
-
-
-
-
Ukraine
-
Podolia (2)
-
-
Western Europe
-
France
-
Paris Basin (1)
-
Vocontian Trough (1)
-
-
Iceland
-
Eyjafjallajokull (9)
-
Grimsvotn (1)
-
Hekla (2)
-
-
Ireland (1)
-
Scandinavia
-
Norway (1)
-
Sweden
-
Bergslagen (1)
-
Dalarna (1)
-
-
-
United Kingdom
-
Great Britain
-
England
-
Berkshire England (1)
-
London Basin (2)
-
Somerset England (1)
-
Welsh Borderland (1)
-
-
Scotland (6)
-
Wales
-
Welsh Basin (1)
-
-
-
Northern Ireland (1)
-
-
-
-
Fraser River (1)
-
Front Range (1)
-
Fuego (3)
-
Great Rift Valley (1)
-
Green River basin (2)
-
Guadalupe Mountains (1)
-
Herefordshire England (1)
-
Indian Ocean
-
Arabian Sea
-
Gulf of Oman (1)
-
-
Argo abyssal plain (1)
-
Mid-Indian Ridge (1)
-
-
Indian Ocean Islands
-
Mascarene Islands
-
Reunion (1)
-
-
-
Kos (1)
-
Lake District (1)
-
Mediterranean region
-
Aegean Islands
-
Greek Aegean Islands
-
Cyclades
-
Santorin (1)
-
Thera (3)
-
-
-
-
-
Mediterranean Sea
-
East Mediterranean
-
Aegean Sea (1)
-
-
-
Melville Island (1)
-
Mexico
-
Chiapas Mexico
-
El Chichon (1)
-
-
Jalisco Mexico
-
Colima (2)
-
-
Mexico state
-
Nevado de Toluca (1)
-
-
Popocatepetl (1)
-
Sonora Mexico (1)
-
Trans-Mexican volcanic belt (1)
-
Valley of Mexico (1)
-
-
Midland Valley (1)
-
Mount Baker (2)
-
North America
-
Appalachian Basin (1)
-
Appalachians
-
Southern Appalachians (1)
-
-
Basin and Range Province
-
Great Basin (2)
-
-
Glacier National Park (1)
-
Great Plains (1)
-
Michigan Basin (1)
-
North American Cordillera
-
Canadian Cordillera (1)
-
-
North American Craton (1)
-
Omineca Belt (1)
-
Purcell Mountains (1)
-
Rocky Mountains
-
Canadian Rocky Mountains (2)
-
Selkirk Mountains (1)
-
U. S. Rocky Mountains
-
San Juan Mountains (1)
-
-
-
Western Canada Sedimentary Basin (1)
-
Western Interior
-
Western Interior Seaway (1)
-
-
-
North Island (7)
-
North Slope (1)
-
Northern Hemisphere (2)
-
Oceania
-
Melanesia (1)
-
Micronesia
-
Mariana Islands (1)
-
-
Polynesia
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Kilauea (2)
-
-
-
-
Tonga (2)
-
-
-
Pacific Coast (1)
-
Pacific Ocean
-
East Pacific
-
Cocos Ridge (1)
-
Northeast Pacific
-
Blanco fracture zone (1)
-
Cascadia Channel (1)
-
Gulf of Alaska (3)
-
Hess Deep (1)
-
Middle America Trench (1)
-
-
Panama Basin (1)
-
-
Equatorial Pacific (1)
-
North Pacific
-
Bering Sea (1)
-
Northeast Pacific
-
Blanco fracture zone (1)
-
Cascadia Channel (1)
-
Gulf of Alaska (3)
-
Hess Deep (1)
-
Middle America Trench (1)
-
-
Northwest Pacific
-
Izu-Bonin Arc (2)
-
Japan Trench (1)
-
Mariana Trough (1)
-
Nankai Trough (2)
-
Okhotsk Sea (1)
-
Pigafetta Basin (1)
-
South China Sea (5)
-
-
-
West Pacific
-
Banda Arc (1)
-
Northwest Pacific
-
Izu-Bonin Arc (2)
-
Japan Trench (1)
-
Mariana Trough (1)
-
Nankai Trough (2)
-
Okhotsk Sea (1)
-
Pigafetta Basin (1)
-
South China Sea (5)
-
-
-
-
Pacific region (1)
-
Puna (1)
-
Quesnellia Terrane (1)
-
Saint Lucia (1)
-
San Andreas Fault (1)
-
San Juan Basin (2)
-
Santa Maria Basin (1)
-
Sawtooth Range (1)
-
Solomon Islands (1)
-
South America
-
Amazon Basin (1)
-
Andes
-
Central Andes (3)
-
Cotopaxi (1)
-
Eastern Cordillera (1)
-
Tungurahua (1)
-
-
Argentina
-
Catamarca Argentina (1)
-
Chubut Argentina (1)
-
-
Bolivia (1)
-
Brazil (1)
-
Chile
-
Aisen del General Carlos Ibanez del Campo Chile
-
Cerro Hudson (1)
-
-
Antofagasta Chile (1)
-
Los Lagos Chile (1)
-
-
Colombia
-
Magdalena Valley (1)
-
Nevado del Ruiz (1)
-
-
Ecuador
-
Cotopaxi (1)
-
Tungurahua (1)
-
-
Patagonia (3)
-
Peru (2)
-
-
South Island (1)
-
Southern Ocean
-
Ross Sea (2)
-
-
Southern Uplands (1)
-
Taranaki Basin (1)
-
United States
-
Alabama (4)
-
Alaska
-
Alaska Peninsula (1)
-
Aleutian Islands (4)
-
Katmai (1)
-
Kenai Peninsula (3)
-
Mount Spurr (1)
-
Valley of Ten Thousand Smokes (1)
-
-
Amargosa Desert (1)
-
Arizona
-
Graham County Arizona (1)
-
-
Arkoma Basin (1)
-
Bighorn Basin (1)
-
California
-
Inyo County California (2)
-
Mono County California
-
Inyo Domes (1)
-
Mono Craters (1)
-
-
Northern California (1)
-
San Bernardino County California
-
Cima volcanic field (1)
-
-
Santa Barbara County California
-
Santa Maria California (1)
-
-
Shasta County California
-
Lassen Peak (1)
-
-
Southern California (1)
-
Ventura Basin (1)
-
-
Colorado
-
Boulder County Colorado (1)
-
Denver County Colorado
-
Denver Colorado (1)
-
-
Gunnison River (1)
-
Jefferson County Colorado (1)
-
Larimer County Colorado (1)
-
-
Colorado Plateau (3)
-
Denver Basin (1)
-
Dinosaur National Monument (1)
-
Eastern California shear zone (1)
-
Eastern U.S. (2)
-
Florida (1)
-
Great Basin (2)
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Kilauea (2)
-
-
-
-
Idaho
-
Boundary County Idaho (1)
-
Cassia County Idaho (1)
-
Franklin County Idaho (1)
-
Snake River plain (1)
-
-
Illinois Basin (1)
-
Iowa (1)
-
Kansas
-
Jewell County Kansas (1)
-
Meade County Kansas (2)
-
-
Kentucky (2)
-
Louisiana
-
Calcasieu Parish Louisiana (1)
-
-
Midcontinent (1)
-
Minnesota
-
Saint Louis County Minnesota (1)
-
-
Mississippi Valley (2)
-
Mojave Desert (2)
-
Montana
-
Big Horn County Montana (1)
-
Carbon County Montana (1)
-
Glacier County Montana (1)
-
Stillwater County Montana (1)
-
Yellowstone County Montana
-
Billings Montana (1)
-
-
-
Nebraska
-
Antelope County Nebraska (1)
-
Banner County Nebraska (1)
-
Cheyenne County Nebraska (1)
-
Knox County Nebraska (1)
-
Morrill County Nebraska (1)
-
-
Nevada
-
Churchill County Nevada (2)
-
Elko County Nevada (1)
-
Lander County Nevada (1)
-
Mineral County Nevada (2)
-
Nye County Nevada (3)
-
Pershing County Nevada (1)
-
-
New Mexico
-
Grant County New Mexico (1)
-
San Juan County New Mexico (1)
-
-
New York (2)
-
North Carolina (1)
-
Ogallala Aquifer (1)
-
Oklahoma (4)
-
Oregon
-
Deschutes County Oregon
-
Newberry Volcano (1)
-
-
Klamath County Oregon
-
Mount Mazama (3)
-
-
Malheur County Oregon (1)
-
Multnomah County Oregon
-
Portland Oregon (1)
-
-
-
Ouachita Mountains (1)
-
Pennsylvania (4)
-
Powder River basin (1)
-
South Dakota (1)
-
South Platte River valley (1)
-
Southwestern U.S. (2)
-
Tennessee (3)
-
Texas
-
Brewster County Texas
-
Big Bend National Park (2)
-
-
McMullen County Texas (1)
-
Val Verde County Texas (1)
-
West Texas (2)
-
-
U. S. Rocky Mountains
-
San Juan Mountains (1)
-
-
Uncompahgre Uplift (1)
-
Utah
-
Box Elder County Utah (1)
-
Cache County Utah (1)
-
Salt Lake County Utah (1)
-
Tooele County Utah (1)
-
Utah County Utah (1)
-
-
Virginia (4)
-
Washakie Basin (1)
-
Washington
-
King County Washington (1)
-
Skamania County Washington
-
Mount Saint Helens (5)
-
-
Stevens County Washington (1)
-
Whatcom County Washington (2)
-
-
West Virginia (1)
-
Western U.S. (5)
-
Wyoming
-
Big Horn County Wyoming (1)
-
Campbell County Wyoming (1)
-
Fremont County Wyoming (1)
-
Park County Wyoming (1)
-
Sweetwater County Wyoming (1)
-
-
Yavapai Province (1)
-
-
USSR (1)
-
Walker Lake (1)
-
West Pacific Ocean Islands
-
Bonin Islands (1)
-
-
Wind River basin (2)
-
Yucatan Peninsula (1)
-
-
commodities
-
bitumens (1)
-
brines (2)
-
clay deposits (2)
-
construction materials
-
building stone (1)
-
-
energy sources (1)
-
fuller's earth (1)
-
gems (1)
-
geothermal energy (1)
-
glass materials (1)
-
metal ores
-
base metals (1)
-
iron ores (1)
-
lead ores (1)
-
lead-zinc deposits (1)
-
silver ores (1)
-
uranium ores (3)
-
vanadium ores (1)
-
zinc ores (1)
-
-
mineral deposits, genesis (10)
-
mineral exploration (1)
-
mineral resources (1)
-
ornamental materials (1)
-
petroleum
-
natural gas (2)
-
shale oil (1)
-
-
pumice deposits (2)
-
sodium carbonate (1)
-
zircon deposits (1)
-
-
elements, isotopes
-
boron (2)
-
carbon
-
C-13/C-12 (8)
-
C-14 (16)
-
organic carbon (4)
-
-
chemical ratios (1)
-
halogens
-
chlorine
-
chloride ion (1)
-
Cl-37/Cl-35 (1)
-
-
-
hydrogen
-
D/H (3)
-
deuterium (1)
-
-
isotope ratios (15)
-
isotopes
-
radioactive isotopes
-
Ar-40/Ar-39 (1)
-
C-14 (16)
-
U-238 (1)
-
-
stable isotopes
-
Ar-36 (1)
-
Ar-40/Ar-39 (1)
-
C-13/C-12 (8)
-
Cl-37/Cl-35 (1)
-
D/H (3)
-
deuterium (1)
-
O-18/O-16 (9)
-
S-34/S-32 (1)
-
Sr-87/Sr-86 (2)
-
-
-
metals
-
actinides
-
thorium (1)
-
uranium
-
U-238 (1)
-
-
-
alkali metals
-
lithium (1)
-
potassium (3)
-
rubidium (3)
-
sodium (1)
-
-
alkaline earth metals
-
barium (2)
-
calcium (5)
-
magnesium (4)
-
strontium
-
Sr-87/Sr-86 (2)
-
-
-
aluminum (5)
-
chromium (1)
-
cobalt (2)
-
copper (1)
-
hafnium (2)
-
iron
-
ferric iron (1)
-
ferrous iron (1)
-
-
lead (1)
-
manganese (2)
-
mercury (1)
-
molybdenum (1)
-
niobium (1)
-
rare earths
-
cerium (1)
-
europium (1)
-
yttrium (2)
-
-
tantalum (1)
-
titanium (3)
-
zirconium (3)
-
-
nitrogen (1)
-
noble gases
-
argon
-
Ar-36 (1)
-
Ar-40/Ar-39 (1)
-
-
-
oxygen
-
O-18/O-16 (9)
-
-
phosphorus (1)
-
silicon (1)
-
sulfur
-
S-34/S-32 (1)
-
-
trace metals (3)
-
-
fossils
-
burrows (2)
-
Chordata
-
Vertebrata
-
Tetrapoda
-
Aves (1)
-
Mammalia
-
Theria
-
Eutheria
-
Artiodactyla
-
Ruminantia
-
Tylopoda
-
Camelidae (1)
-
-
-
-
Carnivora
-
Fissipeda
-
Canidae (1)
-
-
-
Chiroptera (1)
-
Lagomorpha (1)
-
Perissodactyla
-
Ceratomorpha
-
Rhinocerotidae
-
Rhinoceros (1)
-
-
-
Hippomorpha
-
Equidae (1)
-
-
-
Primates
-
Hominidae
-
Australopithecinae
-
Australopithecus
-
Australopithecus africanus (1)
-
-
-
Homo
-
Homo erectus (1)
-
Homo habilis (1)
-
-
-
-
Rodentia (1)
-
-
-
-
Reptilia
-
Diapsida
-
Archosauria
-
dinosaurs (1)
-
-
-
Synapsida
-
Therapsida (1)
-
-
-
-
-
-
coprolites (1)
-
cyanobacteria (2)
-
fossil man (3)
-
Graptolithina
-
Graptoloidea (1)
-
-
ichnofossils
-
Nereites (1)
-
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Malacostraca (1)
-
-
-
-
Cnidaria
-
Anthozoa
-
Zoantharia
-
Scleractinia
-
Porites (1)
-
-
-
-
-
Mollusca
-
Bivalvia (2)
-
Cephalopoda
-
Ammonoidea
-
Ammonites (2)
-
-
-
Gastropoda (1)
-
-
Porifera (1)
-
Protista
-
Foraminifera
-
Fusulinina
-
Fusulinidae (1)
-
-
-
Radiolaria (6)
-
-
-
microfossils
-
Chitinozoa (1)
-
Conodonta (3)
-
Fusulinina
-
Fusulinidae (1)
-
-
-
palynomorphs
-
acritarchs (1)
-
Chitinozoa (1)
-
Dinoflagellata (1)
-
miospores (1)
-
-
Plantae
-
algae
-
diatoms (4)
-
nannofossils
-
Discoasteridae (1)
-
-
-
Spermatophyta
-
Angiospermae (1)
-
-
-
thallophytes (2)
-
tracks (1)
-
-
geochronology methods
-
Ar/Ar (14)
-
fission-track dating (7)
-
K/Ar (10)
-
paleomagnetism (15)
-
tephrochronology (43)
-
Th/U (2)
-
thermoluminescence (1)
-
U/Pb (19)
-
-
geologic age
-
Cenozoic
-
Blancan (1)
-
Bronze Age (1)
-
Gila Conglomerate (1)
-
Glenns Ferry Formation (1)
-
Koobi Fora Formation (1)
-
Omo Group (1)
-
Quaternary
-
Holocene
-
lower Holocene (3)
-
Mesolithic (1)
-
middle Holocene (3)
-
upper Holocene (16)
-
-
Mazama Ash (5)
-
Pleistocene
-
Bishop Tuff (5)
-
lower Pleistocene (1)
-
Matuyama Chron (2)
-
middle Pleistocene (2)
-
Pearlette Volcanic Ash (4)
-
upper Pleistocene
-
Weichselian
-
upper Weichselian
-
Younger Dryas (2)
-
-
-
-
-
upper Quaternary
-
Brunhes Chron (1)
-
-
-
Shungura Formation (1)
-
Stone Age
-
Mesolithic (1)
-
-
Tertiary
-
Arikaree Group (1)
-
John Day Formation (2)
-
middle Tertiary (1)
-
Neogene
-
Miocene
-
Ash Hollow Formation (1)
-
Clarendonian (1)
-
Columbia River Basalt Group (3)
-
Ellensburg Formation (1)
-
lower Miocene (1)
-
middle Miocene (2)
-
Puerto Madryn Formation (1)
-
upper Miocene
-
Messinian (1)
-
Mount Messenger Formation (1)
-
Tortonian (1)
-
-
Valentine Formation (1)
-
-
Ogallala Formation (3)
-
Pliocene
-
Gauss Chron (1)
-
lower Pliocene (1)
-
upper Pliocene (3)
-
-
-
Paleogene
-
Eocene
-
Bridger Formation (1)
-
Green River Formation (1)
-
Lake Gosiute (1)
-
lower Eocene
-
Sparnacian (1)
-
Wind River Formation (1)
-
Ypresian
-
London Clay (2)
-
-
-
middle Eocene
-
Yegua Formation (1)
-
-
-
Kenai Group (1)
-
lower Paleogene (2)
-
Oligocene
-
Fish Canyon Tuff (1)
-
lower Oligocene (1)
-
upper Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
Puercan (1)
-
-
upper Paleocene (1)
-
-
White River Group (1)
-
-
upper Tertiary (3)
-
-
upper Cenozoic
-
Pico Formation (1)
-
-
-
Dalradian (1)
-
Mesozoic
-
Cretaceous
-
Dakota Formation (1)
-
Lower Cretaceous
-
Berriasian (1)
-
Mowry Shale (1)
-
Valanginian (1)
-
-
Mancos Shale (2)
-
Middle Cretaceous (1)
-
Upper Cretaceous
-
Bearpaw Formation (1)
-
Campanian
-
upper Campanian (2)
-
-
Cenomanian
-
upper Cenomanian (1)
-
-
Codell Sandstone Member (1)
-
Ferron Sandstone Member (2)
-
Frontier Formation (1)
-
Fruitland Formation (1)
-
Gulfian
-
Eagle Ford Formation (2)
-
-
Kanguk Formation (1)
-
Kirtland Shale (1)
-
Maestrichtian (1)
-
Prince Creek Formation (1)
-
Senonian (3)
-
Turonian
-
lower Turonian (1)
-
-
-
-
Jurassic
-
Aztec Sandstone (1)
-
Carmel Formation (1)
-
Fernie Formation (1)
-
Lower Jurassic
-
Nordegg Member (1)
-
Pliensbachian (1)
-
Toarcian (1)
-
-
Middle Jurassic
-
Bathonian (1)
-
Page Sandstone (1)
-
-
Upper Jurassic
-
Brushy Basin Member (1)
-
Morrison Formation (1)
-
Oxfordian (1)
-
Portlandian (1)
-
Salt Wash Sandstone Member (1)
-
Tithonian (1)
-
-
-
Triassic
-
Lower Triassic
-
Permian-Triassic boundary (3)
-
-
Middle Triassic
-
Anisian (1)
-
Ladinian (1)
-
-
Upper Triassic (2)
-
-
Yanshanian (1)
-
-
Paleozoic
-
Cambrian
-
Lower Cambrian
-
Tommotian (1)
-
-
-
Carboniferous
-
Lower Carboniferous
-
Dinantian (2)
-
-
Mississippian
-
Middle Mississippian
-
Visean (1)
-
-
-
Namurian (1)
-
Pennsylvanian
-
Middle Pennsylvanian
-
Moscovian (1)
-
-
Upper Pennsylvanian
-
Kasimovian (1)
-
-
-
Upper Carboniferous (1)
-
-
Devonian
-
Lower Devonian
-
Emsian (1)
-
Lochkovian (1)
-
Oriskany Sandstone (1)
-
Pragian (1)
-
-
Middle Devonian
-
Eifelian (1)
-
Onondaga Limestone (1)
-
Tioga Bentonite (1)
-
-
Upper Devonian
-
Kellwasser event (1)
-
-
-
Helderberg Group (1)
-
Ordovician
-
Lower Ordovician (1)
-
Middle Ordovician
-
Black River Group (1)
-
Deicke Bentonite Bed (2)
-
Millbrig Bentonite Bed (2)
-
-
Trenton Group (1)
-
Upper Ordovician
-
Ashgillian (1)
-
Caradocian
-
Borrowdale Volcanic Group (1)
-
-
Sandbian (1)
-
Trentonian (1)
-
-
-
Permian
-
Ecca Group (1)
-
Guadalupian
-
Capitanian (1)
-
-
Lower Permian (1)
-
Lyons Sandstone (1)
-
Upper Permian
-
Permian-Triassic boundary (3)
-
-
Whitehill Formation (1)
-
-
Silurian
-
Lower Silurian
-
Llandovery (1)
-
Wenlock
-
Homerian (2)
-
-
-
Upper Silurian
-
Ludlow (1)
-
-
-
upper Paleozoic (1)
-
-
Phanerozoic (2)
-
Precambrian
-
Archean (2)
-
Onverwacht Group (1)
-
upper Precambrian
-
Proterozoic
-
Neoproterozoic
-
Ediacaran (1)
-
Torridonian (1)
-
Vendian (1)
-
-
Paleoproterozoic (3)
-
-
-
-
-
igneous rocks
-
extrusive rocks (1)
-
igneous rocks
-
carbonatites (2)
-
kimberlite (1)
-
volcanic rocks
-
andesites (6)
-
basalts
-
alkali basalts
-
hawaiite (1)
-
-
flood basalts (2)
-
-
dacites (1)
-
glasses
-
obsidian (1)
-
palagonite (1)
-
volcanic glass (13)
-
-
melilitite (1)
-
nephelinite (1)
-
pyroclastics
-
ash-flow tuff (1)
-
ignimbrite (14)
-
pumice (15)
-
rhyolite tuff (1)
-
scoria (5)
-
tuff (35)
-
welded tuff (1)
-
-
rhyodacites (1)
-
rhyolites (5)
-
trachyandesites (1)
-
trachytes (2)
-
-
-
volcanic ash (374)
-
wehrlite (1)
-
-
metamorphic rocks
-
K-bentonite (13)
-
metabentonite (2)
-
metamorphic rocks
-
metaigneous rocks
-
serpentinite (1)
-
-
metasedimentary rocks (1)
-
metasomatic rocks
-
serpentinite (1)
-
skarn (1)
-
-
migmatites (1)
-
slates (1)
-
-
turbidite (8)
-
-
meteorites
-
meteorites
-
stony meteorites
-
chondrites
-
carbonaceous chondrites
-
Tagish Lake Meteorite (1)
-
-
-
-
-
-
minerals
-
carbonates
-
siderite (1)
-
-
halides
-
fluorides
-
fluorite (1)
-
-
-
K-bentonite (13)
-
metabentonite (2)
-
minerals (22)
-
oxides
-
chrome spinel (1)
-
goethite (1)
-
hematite (2)
-
iron oxides (1)
-
maghemite (1)
-
magnetite (6)
-
-
phosphates
-
apatite (6)
-
crandallite (1)
-
goyazite (1)
-
-
silicates
-
aluminosilicates (1)
-
asbestos (1)
-
chain silicates
-
pyroxene group
-
clinopyroxene (1)
-
orthopyroxene
-
hypersthene (1)
-
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
K-feldspar (2)
-
orthoclase (1)
-
sanidine (5)
-
-
plagioclase
-
albite (1)
-
bytownite (1)
-
-
-
scapolite group (1)
-
silica minerals
-
chalcedony (1)
-
cristobalite (3)
-
opal
-
opal-CT (2)
-
-
quartz (6)
-
-
zeolite group
-
analcime (1)
-
chabazite (1)
-
clinoptilolite (2)
-
erionite (1)
-
mordenite (2)
-
natrolite (1)
-
phillipsite (2)
-
-
-
orthosilicates
-
nesosilicates
-
olivine group
-
olivine (3)
-
-
zircon group
-
zircon (23)
-
-
-
sorosilicates
-
melilite group
-
melilite (1)
-
-
-
-
sheet silicates
-
chlorite group
-
chamosite (1)
-
chlorite (2)
-
-
clay minerals
-
allophane (6)
-
beidellite (1)
-
dickite (1)
-
halloysite (3)
-
imogolite (4)
-
kaolinite (10)
-
montmorillonite (1)
-
nacrite (1)
-
saponite (1)
-
smectite (20)
-
-
corrensite (1)
-
illite (10)
-
magadiite (1)
-
mica group
-
biotite (5)
-
celadonite (1)
-
glauconite (1)
-
muscovite (1)
-
paragonite (1)
-
phengite (1)
-
phlogopite (1)
-
-
pyrophyllite (1)
-
serpentine group
-
berthierine (1)
-
serpentine (1)
-
-
stilpnomelane (1)
-
-
-
sulfates
-
barite (1)
-
jarosite (1)
-
-
sulfides
-
galena (1)
-
iron sulfides (1)
-
marcasite (1)
-
pyrite (1)
-
sphalerite (1)
-
-
wehrlite (1)
-
-
Primary terms
-
absolute age (57)
-
Africa
-
Central Africa
-
Congo (1)
-
-
East Africa
-
Ethiopia
-
Hadar (1)
-
Omo River (1)
-
Omo Valley (1)
-
-
Ethiopian Rift (1)
-
Kenya
-
Kenya Rift valley (1)
-
-
Lake Turkana (1)
-
Tanzania
-
Laetoli (2)
-
Oldoinyo Lengai (1)
-
Olduvai Gorge (1)
-
-
Turkana Basin (1)
-
-
East African Lakes
-
Lake Turkana (1)
-
-
Nile River (1)
-
Southern Africa
-
Karoo Basin (1)
-
Namibia (1)
-
South Africa
-
Cape Province region (1)
-
Mpumalanga South Africa
-
Barberton South Africa (1)
-
-
Transvaal region (1)
-
-
-
-
Antarctica
-
Antarctic ice sheet
-
East Antarctic ice sheet (2)
-
-
Antarctic Peninsula
-
Graham Land (1)
-
-
East Antarctica (1)
-
Marie Byrd Land
-
Byrd Station (1)
-
-
Transantarctic Mountains (3)
-
Victoria Land
-
McMurdo dry valleys (1)
-
-
-
Arctic Ocean
-
Amerasia Basin (1)
-
Norwegian Sea
-
Jan Mayen Ridge (1)
-
-
-
Arctic region
-
Greenland (1)
-
Jan Mayen (1)
-
-
Asia
-
Arabian Peninsula
-
Oman (1)
-
-
Far East
-
China
-
Guangxi China (1)
-
Guizhou China (2)
-
Hunan China (1)
-
Nanpanjiang Basin (1)
-
Ordos Basin (1)
-
Sichuan China (1)
-
South China Block (3)
-
Xinjiang China
-
Junggar Basin (1)
-
-
Yangtze Platform (1)
-
Yunnan China (1)
-
-
Indonesia
-
Java
-
Galunggung (1)
-
Merapi (1)
-
-
Krakatoa (1)
-
Sumatra
-
Toba Lake (4)
-
-
-
Japan
-
Hokkaido
-
Tokachi (1)
-
Usu (1)
-
-
Honshu
-
Izu-shichito (1)
-
-
Kyushu
-
Kagoshima Japan
-
Sakura-jima (4)
-
-
-
-
Philippine Islands
-
Luzon
-
Mount Pinatubo (3)
-
-
-
-
Himalayas (1)
-
Indian Peninsula
-
Pakistan (1)
-
-
Kamchatka Russian Federation
-
Kamchatka Peninsula (1)
-
-
Middle East
-
Iraq (1)
-
Jordan (1)
-
Mesopotamia (1)
-
-
Okhotsk-Chukchi volcanic belt (1)
-
Russian Pacific region (1)
-
Sakhalin Russian Federation
-
Sakhalin (1)
-
-
-
Atlantic Ocean
-
North Atlantic
-
Baltic Sea
-
Gulf of Riga (1)
-
-
Barbados Ridge (1)
-
Blake-Bahama Basin (1)
-
Caribbean Sea (1)
-
Goban Spur (1)
-
Hatteras abyssal plain (1)
-
Labrador Sea (1)
-
North Sea (2)
-
Northeast Atlantic (1)
-
-
-
Atlantic Ocean Islands
-
Azores
-
Faial Island
-
Capelinhos (1)
-
-
-
Canary Islands
-
Hierro (1)
-
-
Faeroe Islands (1)
-
-
atmosphere (11)
-
Australasia
-
Australia
-
Tasmania Australia (1)
-
Western Australia
-
Hamersley Range (2)
-
-
-
New Zealand
-
Otago New Zealand (1)
-
Rotorua New Zealand (1)
-
Tarawera volcanic complex (1)
-
Taupo volcanic zone (2)
-
Torlesse Terrane (1)
-
Waikato Basin (1)
-
-
-
biogeography (2)
-
bitumens (1)
-
boron (2)
-
brines (2)
-
Canada
-
Arctic Archipelago (2)
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick
-
Saint John County New Brunswick
-
Saint John New Brunswick (1)
-
-
-
Nova Scotia
-
Hants County Nova Scotia (1)
-
-
-
Quebec
-
Gaspe Peninsula (1)
-
-
-
Nunavut
-
Ellesmere Island
-
Fosheim Peninsula (1)
-
-
Sverdrup Basin (2)
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
Ellef Ringnes Island (1)
-
-
-
Queen Elizabeth Islands
-
Ellesmere Island
-
Fosheim Peninsula (1)
-
-
Sverdrup Basin (2)
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
Ellef Ringnes Island (1)
-
-
-
Western Canada
-
Alberta
-
Banff National Park (2)
-
Drumheller Alberta (1)
-
Jasper National Park (2)
-
-
British Columbia (8)
-
Canadian Cordillera (1)
-
Canadian Rocky Mountains (2)
-
Crowsnest Pass (1)
-
Northwest Territories
-
Norman Wells Northwest Territories (1)
-
-
Saskatchewan (2)
-
Yukon Territory (5)
-
-
-
carbon
-
C-13/C-12 (8)
-
C-14 (16)
-
organic carbon (4)
-
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
-
Jamaica (4)
-
-
Lesser Antilles
-
Barbados (1)
-
Martinique
-
Mount Pelee (2)
-
-
Montserrat Island
-
Soufriere Hills (2)
-
-
Saint Vincent (1)
-
Soufriere (2)
-
-
-
-
-
Cenozoic
-
Blancan (1)
-
Bronze Age (1)
-
Gila Conglomerate (1)
-
Glenns Ferry Formation (1)
-
Koobi Fora Formation (1)
-
Omo Group (1)
-
Quaternary
-
Holocene
-
lower Holocene (3)
-
Mesolithic (1)
-
middle Holocene (3)
-
upper Holocene (16)
-
-
Mazama Ash (5)
-
Pleistocene
-
Bishop Tuff (5)
-
lower Pleistocene (1)
-
Matuyama Chron (2)
-
middle Pleistocene (2)
-
Pearlette Volcanic Ash (4)
-
upper Pleistocene
-
Weichselian
-
upper Weichselian
-
Younger Dryas (2)
-
-
-
-
-
upper Quaternary
-
Brunhes Chron (1)
-
-
-
Shungura Formation (1)
-
Stone Age
-
Mesolithic (1)
-
-
Tertiary
-
Arikaree Group (1)
-
John Day Formation (2)
-
middle Tertiary (1)
-
Neogene
-
Miocene
-
Ash Hollow Formation (1)
-
Clarendonian (1)
-
Columbia River Basalt Group (3)
-
Ellensburg Formation (1)
-
lower Miocene (1)
-
middle Miocene (2)
-
Puerto Madryn Formation (1)
-
upper Miocene
-
Messinian (1)
-
Mount Messenger Formation (1)
-
Tortonian (1)
-
-
Valentine Formation (1)
-
-
Ogallala Formation (3)
-
Pliocene
-
Gauss Chron (1)
-
lower Pliocene (1)
-
upper Pliocene (3)
-
-
-
Paleogene
-
Eocene
-
Bridger Formation (1)
-
Green River Formation (1)
-
Lake Gosiute (1)
-
lower Eocene
-
Sparnacian (1)
-
Wind River Formation (1)
-
Ypresian
-
London Clay (2)
-
-
-
middle Eocene
-
Yegua Formation (1)
-
-
-
Kenai Group (1)
-
lower Paleogene (2)
-
Oligocene
-
Fish Canyon Tuff (1)
-
lower Oligocene (1)
-
upper Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
Puercan (1)
-
-
upper Paleocene (1)
-
-
White River Group (1)
-
-
upper Tertiary (3)
-
-
upper Cenozoic
-
Pico Formation (1)
-
-
-
Central America
-
Costa Rica (1)
-
El Salvador
-
San Salvador El Salvador (1)
-
-
Guatemala
-
Pacaya (1)
-
-
Honduras (1)
-
Nicaragua
-
Managua Nicaragua (1)
-
-
-
chemical analysis (2)
-
Chordata
-
Vertebrata
-
Tetrapoda
-
Aves (1)
-
Mammalia
-
Theria
-
Eutheria
-
Artiodactyla
-
Ruminantia
-
Tylopoda
-
Camelidae (1)
-
-
-
-
Carnivora
-
Fissipeda
-
Canidae (1)
-
-
-
Chiroptera (1)
-
Lagomorpha (1)
-
Perissodactyla
-
Ceratomorpha
-
Rhinocerotidae
-
Rhinoceros (1)
-
-
-
Hippomorpha
-
Equidae (1)
-
-
-
Primates
-
Hominidae
-
Australopithecinae
-
Australopithecus
-
Australopithecus africanus (1)
-
-
-
Homo
-
Homo erectus (1)
-
Homo habilis (1)
-
-
-
-
Rodentia (1)
-
-
-
-
Reptilia
-
Diapsida
-
Archosauria
-
dinosaurs (1)
-
-
-
Synapsida
-
Therapsida (1)
-
-
-
-
-
-
clay deposits (2)
-
clay mineralogy (41)
-
climate change (11)
-
construction materials
-
building stone (1)
-
-
continental drift (1)
-
continental shelf (1)
-
continental slope (1)
-
coprolites (1)
-
core (1)
-
crust (6)
-
crystal chemistry (2)
-
crystal growth (4)
-
crystal structure (4)
-
dams (1)
-
Deep Sea Drilling Project
-
IPOD
-
DSDP Site 603 (1)
-
Leg 66 (1)
-
Leg 67 (1)
-
Leg 76
-
DSDP Site 534 (1)
-
-
Leg 78A
-
DSDP Site 541 (1)
-
DSDP Site 542 (1)
-
DSDP Site 543 (1)
-
-
Leg 80
-
DSDP Site 550 (1)
-
-
Leg 84 (1)
-
-
Leg 16
-
DSDP Site 158 (1)
-
-
Leg 18
-
DSDP Site 173 (1)
-
DSDP Site 178 (2)
-
-
Leg 19
-
DSDP Site 186 (1)
-
-
Leg 30 (1)
-
Leg 38
-
DSDP Site 346 (1)
-
-
-
deformation (10)
-
diagenesis (28)
-
Earth (1)
-
earthquakes (7)
-
East Pacific Ocean Islands
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Kilauea (2)
-
-
-
-
-
ecology (2)
-
economic geology (9)
-
electron microscopy (2)
-
energy sources (1)
-
engineering geology (2)
-
environmental geology (1)
-
Europe
-
Alps
-
Eastern Alps
-
Dolomites
-
Latemar Massif (1)
-
-
-
-
Baltic region
-
Estonia
-
Saaremaa (1)
-
-
Latvia (1)
-
Lithuania (1)
-
-
Central Europe
-
Germany (1)
-
Poland
-
Swiety Krzyz Mountains (1)
-
-
-
Southern Europe
-
Greece
-
Crete (1)
-
Greek Aegean Islands
-
Cyclades
-
Santorin (1)
-
Thera (3)
-
-
-
Hellenic Arc (1)
-
-
Iberian Peninsula
-
Spain (2)
-
-
Italy
-
Campania Italy
-
Naples Italy
-
Ischia (1)
-
-
Vesuvius (1)
-
-
Sicily Italy
-
Catania Italy (1)
-
Lipari Islands
-
Stromboli (1)
-
-
Mount Etna (3)
-
-
Trentino-Alto Adige Italy
-
Latemar Massif (1)
-
-
-
-
Ukraine
-
Podolia (2)
-
-
Western Europe
-
France
-
Paris Basin (1)
-
Vocontian Trough (1)
-
-
Iceland
-
Eyjafjallajokull (9)
-
Grimsvotn (1)
-
Hekla (2)
-
-
Ireland (1)
-
Scandinavia
-
Norway (1)
-
Sweden
-
Bergslagen (1)
-
Dalarna (1)
-
-
-
United Kingdom
-
Great Britain
-
England
-
Berkshire England (1)
-
London Basin (2)
-
Somerset England (1)
-
Welsh Borderland (1)
-
-
Scotland (6)
-
Wales
-
Welsh Basin (1)
-
-
-
Northern Ireland (1)
-
-
-
-
faults (14)
-
folds (4)
-
fossil man (3)
-
foundations (1)
-
fractures (2)
-
gems (1)
-
geochemistry (41)
-
geochronology (39)
-
geomorphology (9)
-
geophysical methods (5)
-
geosynclines (1)
-
geothermal energy (1)
-
glacial geology (6)
-
Graptolithina
-
Graptoloidea (1)
-
-
ground water (7)
-
heat flow (1)
-
hydrogen
-
D/H (3)
-
deuterium (1)
-
-
hydrogeology (1)
-
hydrology (5)
-
ichnofossils
-
Nereites (1)
-
-
igneous rocks
-
carbonatites (2)
-
kimberlite (1)
-
volcanic rocks
-
andesites (6)
-
basalts
-
alkali basalts
-
hawaiite (1)
-
-
flood basalts (2)
-
-
dacites (1)
-
glasses
-
obsidian (1)
-
palagonite (1)
-
volcanic glass (13)
-
-
melilitite (1)
-
nephelinite (1)
-
pyroclastics
-
ash-flow tuff (1)
-
ignimbrite (14)
-
pumice (15)
-
rhyolite tuff (1)
-
scoria (5)
-
tuff (35)
-
welded tuff (1)
-
-
rhyodacites (1)
-
rhyolites (5)
-
trachyandesites (1)
-
trachytes (2)
-
-
-
inclusions (2)
-
Indian Ocean
-
Arabian Sea
-
Gulf of Oman (1)
-
-
Argo abyssal plain (1)
-
Mid-Indian Ridge (1)
-
-
Indian Ocean Islands
-
Mascarene Islands
-
Reunion (1)
-
-
-
Integrated Ocean Drilling Program
-
Expedition 345 (1)
-
Japan Trench Fast Drilling Project
-
Expeditions 343/343T
-
IODP Site C0019 (1)
-
-
-
-
intrusions (3)
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Malacostraca (1)
-
-
-
-
Cnidaria
-
Anthozoa
-
Zoantharia
-
Scleractinia
-
Porites (1)
-
-
-
-
-
Mollusca
-
Bivalvia (2)
-
Cephalopoda
-
Ammonoidea
-
Ammonites
-
-
-
-
-