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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Afar (2)
-
Central Africa
-
Congo Democratic Republic
-
Kivu Congo Democratic Republic
-
Nyiragongo (1)
-
-
-
-
East Africa
-
Djibouti (5)
-
Ethiopia (5)
-
Ethiopian Rift (1)
-
Kenya
-
Kenya Rift valley (2)
-
-
Lake Turkana (1)
-
Tanzania
-
Oldoinyo Lengai (4)
-
-
-
East African Lakes
-
Lake Turkana (1)
-
-
East African Rift (1)
-
North Africa
-
Egypt (1)
-
Tunisia (1)
-
-
Southern Africa
-
Botswana (1)
-
Lesotho (2)
-
South Africa
-
Free State South Africa (1)
-
Transvaal region (1)
-
Witwatersrand (1)
-
-
-
West Africa
-
Cameroon
-
Mount Cameroon (1)
-
-
-
-
Altiplano (3)
-
Antarctica
-
Antarctic ice sheet (1)
-
James Ross Island (1)
-
Ross Ice Shelf (1)
-
Ross Island (1)
-
West Antarctica (1)
-
-
Arctic Ocean
-
Norwegian Sea
-
Kolbeinsey Ridge (1)
-
-
-
Arctic region
-
Greenland
-
East Greenland (1)
-
-
-
Asal Rift (5)
-
Asia
-
Arabian Peninsula
-
Saudi Arabia (1)
-
-
Far East
-
China (1)
-
Indonesia
-
Java
-
Merapi (2)
-
-
Krakatoa (1)
-
Sumatra
-
Toba Lake (6)
-
-
Sunda Arc (3)
-
-
Japan
-
Honshu
-
Izu-shichito
-
Izu-Oshima
-
Mount Mihara (1)
-
-
-
-
Kyushu
-
Kirishima (1)
-
Nagasaki Japan
-
Unzen (1)
-
-
-
-
Malaysia (1)
-
Mongolia (1)
-
Philippine Islands
-
Luzon
-
Mount Pinatubo (7)
-
-
-
Taiwan
-
Taipei Taiwan (1)
-
Tatun Shan (1)
-
-
-
Gobi Desert (1)
-
Himalayas (2)
-
Indian Peninsula
-
India
-
Andhra Pradesh India
-
Rajahmundry India (2)
-
-
Ghats
-
Western Ghats (1)
-
-
Gujarat India
-
Saurashtra (1)
-
-
Madhya Pradesh India
-
Chhindwara India (2)
-
-
Northeastern India
-
Meghalaya India (1)
-
-
-
-
Kamchatka Russian Federation
-
Kamchatka Peninsula
-
Sheveluch (1)
-
Tolbachik (1)
-
-
-
Karakoram (1)
-
Middle East
-
Israel (1)
-
Turkey (2)
-
-
Russian Pacific region (3)
-
Siberia (1)
-
Tunguska Syneclise (1)
-
-
Atlantic Ocean
-
North Atlantic
-
Bay of Biscay (1)
-
Caribbean Sea (2)
-
-
South Atlantic
-
Walvis Ridge (2)
-
-
-
Atlantic Ocean Islands
-
Azores
-
Terceira Island (1)
-
-
Canary Islands
-
Tenerife (1)
-
-
-
Atlantic region (1)
-
Australasia
-
Australia
-
Western Australia (1)
-
-
New Zealand
-
Lake Taupo (1)
-
Otago New Zealand (1)
-
Ruapehu (5)
-
Tarawera volcanic complex (2)
-
Taupo (2)
-
Taupo New Zealand (2)
-
Taupo volcanic zone (5)
-
Tongariro (1)
-
Waihi New Zealand (1)
-
Waikato Basin (1)
-
Waiotapu New Zealand (1)
-
-
Papua New Guinea
-
Bismarck Archipelago
-
Rabaul Caldera (1)
-
-
New Britain (1)
-
-
-
Blue Mountains (3)
-
Canada
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick (1)
-
Nova Scotia (1)
-
-
Quebec
-
Frontenac County Quebec (1)
-
Noranda Quebec (1)
-
-
-
Western Canada
-
Alberta
-
Banff National Park (1)
-
-
British Columbia
-
Mount Meager (1)
-
Queen Charlotte Islands (1)
-
-
Canadian Cordillera (1)
-
Northwest Territories
-
Norman Wells Northwest Territories (1)
-
-
Saskatchewan (1)
-
Yukon Territory (2)
-
-
-
Caribbean region
-
West Indies
-
Antilles
-
Lesser Antilles
-
Guadeloupe
-
La Grande Soufriere (1)
-
-
Martinique
-
Mount Pelee (3)
-
-
Montserrat Island
-
Soufriere Hills (1)
-
-
Saint Kitts (1)
-
Soufriere (2)
-
-
-
-
-
Cascade Range (28)
-
Central America
-
Costa Rica
-
Arenal (1)
-
Irazu (3)
-
-
El Salvador
-
San Salvador El Salvador (1)
-
-
Guatemala
-
Pacaya (3)
-
-
Honduras (3)
-
Nicaragua
-
Managua Nicaragua (1)
-
Masaya (4)
-
-
Panama (2)
-
-
Cerro Negro (2)
-
Channeled Scabland (1)
-
Chicxulub Crater (2)
-
Columbia River (1)
-
Columbia River basin (1)
-
Commonwealth of Independent States
-
Russian Federation
-
Kamchatka Russian Federation
-
Kamchatka Peninsula
-
Sheveluch (1)
-
Tolbachik (1)
-
-
-
Russian Pacific region (3)
-
Tunguska Syneclise (1)
-
-
-
Craters of the Moon (1)
-
East Pacific Ocean Islands
-
Galapagos Islands (2)
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hawaiian Volcano Observatory (2)
-
Kilauea (9)
-
Kohala (1)
-
Puu Oo (1)
-
-
-
Mauna Loa (4)
-
-
-
East Rift Zone (1)
-
Europe
-
Adriatic region (1)
-
Carpathians (1)
-
Central Europe
-
Germany
-
Eifel (2)
-
Rhineland-Palatinate Germany
-
Laacher See (1)
-
-
-
Slovakia (1)
-
-
Pannonian Basin (1)
-
Rhenish Schiefergebirge
-
Eifel (2)
-
-
Southern Europe
-
Bulgaria (1)
-
Greece
-
Greek Aegean Islands
-
Cyclades
-
Santorin (2)
-
Thera (3)
-
-
-
-
Iberian Peninsula
-
Spain
-
Cantabrian Basin (1)
-
Catalonia Spain (1)
-
-
-
Italy
-
Apennines (1)
-
Basilicata Italy (1)
-
Campania Italy
-
Bay of Naples (1)
-
Phlegraean Fields (3)
-
Vesuvius (4)
-
-
Latium Italy
-
Rome Italy (1)
-
-
Sicily Italy
-
Lipari Islands
-
Lipari Island (1)
-
Stromboli (5)
-
Vulcano (2)
-
-
Mount Etna (16)
-
Pantelleria (2)
-
-
Tuscany Italy (1)
-
Umbria Italy
-
Perugia Italy
-
Gubbio Italy (1)
-
-
-
Veneto Italy (1)
-
-
Rhodope Mountains (1)
-
Romania (1)
-
-
Western Europe
-
France
-
Aquitaine (1)
-
Auvergne (1)
-
Cantal France
-
Cantal Massif (1)
-
-
Central Massif
-
Cantal Massif (1)
-
-
Puy-de-Dome France
-
Chaine des Puys (2)
-
Clermont-Ferrand France (1)
-
-
-
Iceland
-
Eyjafjallajokull (2)
-
Grimsvotn (2)
-
Laki (1)
-
Surtsey (3)
-
Vatnajokull (2)
-
-
Ireland
-
Kerry Ireland (1)
-
Mayo Ireland (1)
-
-
United Kingdom
-
Great Britain
-
England
-
Somerset England (1)
-
South-West England (1)
-
-
Scotland
-
Argyllshire Scotland
-
Mull Island (1)
-
-
Hebrides
-
Inner Hebrides
-
Mull Island (1)
-
-
-
Scottish Highlands (1)
-
-
Wales
-
Caernarvonshire Wales
-
Snowdonia (1)
-
-
Gwynedd Wales
-
Snowdonia (1)
-
-
-
-
-
-
-
Fuego (1)
-
Great Sumatran Fault (1)
-
Green River (1)
-
Indian Ocean
-
Arabian Sea
-
Gulf of Aden
-
Gulf of Tadjoura (1)
-
-
-
-
Indian Ocean Islands
-
Mascarene Islands
-
Reunion
-
Piton de la Fournaise (6)
-
-
-
-
Krishna-Godavari Basin (1)
-
La Palma (1)
-
Long Valley (1)
-
Medicine Lake (1)
-
Mediterranean region
-
Aegean Islands
-
Greek Aegean Islands
-
Cyclades
-
Santorin (2)
-
Thera (3)
-
-
-
-
-
Mediterranean Sea
-
East Mediterranean
-
Aegean Sea (1)
-
-
Strait of Sicily (1)
-
-
Mexico
-
Chiapas Mexico
-
El Chichon (3)
-
-
Chihuahua Mexico (2)
-
Colima Mexico (1)
-
Durango Mexico (1)
-
Jalisco Block (1)
-
Jalisco Mexico
-
Colima (4)
-
Guadalajara Mexico (1)
-
-
Mexico state
-
Federal District Mexico
-
Mexico City Mexico (2)
-
-
Nevado de Toluca (2)
-
-
Michoacan Mexico
-
Paricutin (1)
-
-
Michoacan-Guanajuato volcanic field (1)
-
Nayarit Mexico
-
Sanganguey (1)
-
-
Pico de Orizaba (3)
-
Popocatepetl (7)
-
Puebla Mexico (1)
-
Sierra Madre Occidental (3)
-
Tamaulipas Mexico
-
Arroyo El Mimbral (1)
-
-
Trans-Mexican volcanic belt (6)
-
-
Mount Adams (1)
-
Mount Baker (1)
-
Mount Erebus (1)
-
North America
-
Appalachians (3)
-
Basin and Range Province
-
Great Basin (2)
-
-
Denali Fault (1)
-
Great Lakes
-
Lake Superior (1)
-
-
Keweenawan Rift (1)
-
Kootenay Arc (1)
-
Michigan Basin (1)
-
North American Cordillera
-
Canadian Cordillera (1)
-
-
Rio Grande Rift (2)
-
Rocky Mountains
-
U. S. Rocky Mountains
-
San Juan Mountains (1)
-
Sawatch Range (1)
-
-
-
Slide Mountain Terrane (1)
-
Western Interior
-
Western Interior Seaway (1)
-
-
-
North Island (13)
-
Oceania
-
Micronesia
-
Mariana Islands (1)
-
-
Polynesia
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hawaiian Volcano Observatory (2)
-
Kilauea (9)
-
Kohala (1)
-
Puu Oo (1)
-
-
-
Mauna Loa (4)
-
-
-
-
Pacific Coast (3)
-
Pacific Ocean
-
East Pacific
-
East Pacific Rise (2)
-
Galapagos Rift (1)
-
Northeast Pacific
-
Axial Seamount (2)
-
Cascadia Channel (1)
-
Gorda Rise (1)
-
Hawaiian Ridge (1)
-
Juan de Fuca Ridge
-
CoAxial Segment (1)
-
-
-
Southeast Pacific
-
Eltanin fracture zone (1)
-
Lau Basin (1)
-
-
-
North Pacific
-
Northeast Pacific
-
Axial Seamount (2)
-
Cascadia Channel (1)
-
Gorda Rise (1)
-
Hawaiian Ridge (1)
-
Juan de Fuca Ridge
-
CoAxial Segment (1)
-
-
-
Northwest Pacific
-
Emperor Seamounts (1)
-
Shatsky Rise (1)
-
South China Sea (2)
-
-
-
South Pacific
-
Southeast Pacific
-
Eltanin fracture zone (1)
-
Lau Basin (1)
-
-
Southwest Pacific
-
Java Sea (1)
-
-
-
West Pacific
-
Banda Arc (1)
-
Indonesian Seas
-
Java Sea (1)
-
-
Northwest Pacific
-
Emperor Seamounts (1)
-
Shatsky Rise (1)
-
South China Sea (2)
-
-
Southwest Pacific
-
Java Sea (1)
-
-
Sunda Shelf (1)
-
-
-
Puna (3)
-
Quesnellia Terrane (1)
-
Red Sea region (1)
-
Saint Lucia (1)
-
San Pedro (1)
-
Sierra Nevada (1)
-
South America
-
Andes
-
Central Andes (2)
-
Galeras (1)
-
Subandean Belt (1)
-
Tungurahua (1)
-
Villarrica (2)
-
Western Cordillera (1)
-
-
Argentina
-
Jujuy Argentina (1)
-
-
Bolivia (2)
-
Chile
-
Aisen del General Carlos Ibanez del Campo Chile
-
Cerro Hudson (1)
-
-
Antofagasta Chile
-
Lascar (1)
-
-
Tatara-San Pedro Complex (1)
-
Villarrica (2)
-
-
Colombia
-
Galeras (1)
-
Nevado del Ruiz (2)
-
-
Ecuador
-
Tungurahua (1)
-
-
Patagonia (1)
-
Peru
-
Arequipa Peru (2)
-
-
-
South Island (1)
-
Southern Ocean
-
Ross Sea (1)
-
-
Spirit Lake (1)
-
United States
-
Alabama (1)
-
Alaska
-
Alaska Peninsula (2)
-
Aleutian Islands (2)
-
Aniakchak (1)
-
Katmai (4)
-
Katmai National Park (1)
-
Kenai Peninsula (1)
-
Novarupta (1)
-
Redoubt (2)
-
Talkeetna Mountains (1)
-
-
Arizona
-
Apache County Arizona (1)
-
Coconino County Arizona
-
Meteor Crater (1)
-
-
Gila County Arizona (1)
-
Maricopa County Arizona (1)
-
Navajo County Arizona (1)
-
Pinal County Arizona (1)
-
San Francisco Peaks (2)
-
-
Arkoma Basin (1)
-
California
-
Central California (1)
-
Inyo County California
-
Inyo Mountains (1)
-
-
Mono County California
-
Inyo Domes (1)
-
Long Valley Caldera (5)
-
Mono Craters (1)
-
Obsidian Dome (1)
-
-
Nevada County California (1)
-
Northern California (1)
-
Shasta County California
-
Lassen Peak (2)
-
-
Siskiyou County California
-
Medicine Lake Highland (1)
-
-
Trinity County California (1)
-
-
Colorado
-
Chaffee County Colorado (1)
-
Gunnison County Colorado (1)
-
Lake County Colorado (1)
-
Mineral County Colorado (1)
-
Pitkin County Colorado (1)
-
Rio Grande County Colorado (1)
-
San Juan volcanic field (2)
-
Sawatch Range (1)
-
-
Colorado Plateau (2)
-
Columbia Plateau (4)
-
Eastern U.S. (1)
-
Great Basin (2)
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hawaiian Volcano Observatory (2)
-
Kilauea (9)
-
Kohala (1)
-
Puu Oo (1)
-
-
-
Mauna Loa (4)
-
-
Idaho
-
Blaine County Idaho (1)
-
Butte County Idaho (1)
-
Elmore County Idaho (1)
-
Fremont County Idaho (1)
-
Nez Perce County Idaho (1)
-
Owyhee County Idaho (1)
-
Snake River plain (3)
-
Twin Falls County Idaho (1)
-
-
Illinois Basin (1)
-
Klamath Mountains (1)
-
Lake Tahoe (1)
-
Louisiana (1)
-
Minnesota
-
Cook County Minnesota (1)
-
Lake County Minnesota (1)
-
Saint Louis County Minnesota (1)
-
-
Mississippi Valley (1)
-
Montana (1)
-
Nevada
-
Nye County Nevada (1)
-
Toquima Range (1)
-
-
New Jersey (1)
-
New Mexico
-
Datil-Mogollon volcanic field (1)
-
Jemez Mountains (3)
-
Los Alamos County New Mexico (2)
-
Sandoval County New Mexico (2)
-
Santa Fe County New Mexico (2)
-
Valles Caldera (3)
-
-
Oregon
-
Brothers fault zone (1)
-
Clackamas County Oregon (2)
-
Crook County Oregon (2)
-
Deschutes County Oregon
-
Newberry Volcano (2)
-
-
Grant County Oregon (2)
-
Harney County Oregon (1)
-
Hood River County Oregon (2)
-
Jefferson County Oregon (1)
-
Klamath County Oregon
-
Mount Mazama (3)
-
-
Lake County Oregon (2)
-
Mount Hood (2)
-
Multnomah County Oregon
-
Portland Oregon (1)
-
-
Umatilla County Oregon (1)
-
Wheeler County Oregon (1)
-
-
Owyhee Mountains (1)
-
Pennsylvania (1)
-
Tennessee (1)
-
Texas
-
Brazos River (1)
-
Brewster County Texas (1)
-
Presidio County Texas (1)
-
West Texas (1)
-
-
Trans-Pecos (2)
-
U. S. Rocky Mountains
-
San Juan Mountains (1)
-
Sawatch Range (1)
-
-
Utah
-
Juab County Utah (1)
-
-
Virginia (1)
-
Washington
-
Asotin County Washington (1)
-
Cowlitz County Washington (1)
-
Cowlitz River (2)
-
King County Washington (1)
-
Kittitas County Washington (1)
-
Lewis County Washington (1)
-
Pierce County Washington
-
Mount Rainier (1)
-
-
Skamania County Washington
-
Mount Saint Helens (16)
-
-
Toutle River (4)
-
Whatcom County Washington (2)
-
Yakima County Washington (2)
-
-
Western U.S. (5)
-
Wyoming
-
Park County Wyoming (1)
-
Teton County Wyoming (1)
-
-
Yellowstone National Park (3)
-
-
White Island (1)
-
Yucatan Peninsula (1)
-
-
commodities
-
geothermal energy (1)
-
metal ores
-
base metals (1)
-
tin ores (1)
-
-
mineral deposits, genesis (6)
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (9)
-
C-14 (15)
-
organic carbon (1)
-
-
halogens
-
chlorine
-
chloride ion (1)
-
Cl-36 (1)
-
-
fluorine (1)
-
-
hydrogen
-
D/H (1)
-
-
incompatible elements (2)
-
isotope ratios (22)
-
isotopes
-
radioactive isotopes
-
Be-10/Be-9 (1)
-
C-14 (15)
-
Cl-36 (1)
-
Pb-206/Pb-204 (3)
-
Pb-207/Pb-204 (2)
-
Pb-208/Pb-204 (2)
-
Pb-210 (1)
-
Ra-226 (2)
-
Rn-220 (1)
-
Rn-222 (3)
-
Th-230/Ra-226 (2)
-
Th-232/Th-230 (1)
-
U-238/Th-230 (1)
-
U-238/Th-232 (1)
-
U-238/U-234 (1)
-
-
stable isotopes
-
Be-10/Be-9 (1)
-
C-13/C-12 (9)
-
D/H (1)
-
He-3 (1)
-
He-4/He-3 (2)
-
N-15/N-14 (1)
-
Nd-144/Nd-143 (8)
-
O-18/O-16 (5)
-
Os-188/Os-187 (1)
-
Pb-206/Pb-204 (3)
-
Pb-207/Pb-204 (2)
-
Pb-207/Pb-206 (1)
-
Pb-208/Pb-204 (2)
-
S-34/S-32 (2)
-
Sr-87/Sr-86 (14)
-
-
-
large-ion lithophile elements (1)
-
metals
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actinides
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thorium
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Th-230/Ra-226 (2)
-
Th-232/Th-230 (1)
-
U-238/Th-230 (1)
-
U-238/Th-232 (1)
-
-
uranium
-
U-238/Th-230 (1)
-
U-238/Th-232 (1)
-
U-238/U-234 (1)
-
-
-
alkali metals
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potassium (1)
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alkaline earth metals
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barium (1)
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beryllium
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Be-10/Be-9 (1)
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-
magnesium (1)
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radium
-
Ra-226 (2)
-
Th-230/Ra-226 (2)
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strontium
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Sr-87/Sr-86 (14)
-
-
-
gold (1)
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iron (2)
-
lead
-
Pb-206/Pb-204 (3)
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Pb-207/Pb-204 (2)
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Pb-207/Pb-206 (1)
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Pb-208/Pb-204 (2)
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Pb-210 (1)
-
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platinum group
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iridium (1)
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osmium
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Os-188/Os-187 (1)
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-
-
precious metals (1)
-
rare earths
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neodymium
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Nd-144/Nd-143 (8)
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-
yttrium (1)
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titanium (1)
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zinc (1)
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zirconium (1)
-
-
nitrogen
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N-15/N-14 (1)
-
-
noble gases
-
helium
-
He-3 (1)
-
He-4/He-3 (2)
-
-
radon
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Rn-220 (1)
-
Rn-222 (3)
-
-
-
oxygen
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O-18/O-16 (5)
-
-
short-lived isotopes (1)
-
sulfur
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S-34/S-32 (2)
-
-
-
fossils
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Chordata
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Vertebrata
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Tetrapoda
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Mammalia
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Theria
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Eutheria
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Primates
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Hominidae (1)
-
-
-
-
-
Reptilia
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Diapsida
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Archosauria
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dinosaurs
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Saurischia
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Sauropodomorpha
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Sauropoda
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Titanosauridae (1)
-
-
-
-
-
-
-
-
-
-
-
Invertebrata
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Brachiopoda (1)
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Bryozoa (1)
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Cnidaria
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Anthozoa
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Zoantharia
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Scleractinia
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Porites (1)
-
-
-
-
-
Mollusca
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Bivalvia (1)
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Cephalopoda
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Ammonoidea
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Ammonites (1)
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-
-
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Protista
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Foraminifera (6)
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Radiolaria (1)
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-
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microfossils (10)
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palynomorphs
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Dinoflagellata
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Peridinium (1)
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Plantae
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algae
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calcareous algae (1)
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diatoms (2)
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nannofossils (1)
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Pteridophyta (1)
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Spermatophyta
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Angiospermae (1)
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Gymnospermae (1)
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-
-
-
geochronology methods
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Ar/Ar (21)
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exposure age (1)
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fission-track dating (1)
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K/Ar (16)
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paleomagnetism (13)
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Rb/Sr (1)
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tephrochronology (17)
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Th/U (1)
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tree rings (3)
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U/Pb (5)
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uranium disequilibrium (4)
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geologic age
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Cenozoic
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Koobi Fora Formation (1)
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Quaternary
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Cordilleran ice sheet (1)
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Holocene
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lower Holocene (3)
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middle Holocene (1)
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upper Holocene (20)
-
-
Pleistocene
-
Bandelier Tuff (2)
-
Bishop Tuff (3)
-
lower Pleistocene (2)
-
upper Pleistocene
-
Wisconsinan (1)
-
-
-
upper Quaternary (11)
-
-
Tertiary
-
Apache Leap Tuff (1)
-
John Day Formation (2)
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middle Tertiary (1)
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Neogene
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Miocene
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Columbia River Basalt Group (12)
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Ellensburg Formation (1)
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Grande Ronde Basalt (5)
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middle Miocene (1)
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Picture Gorge Basalt (1)
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Saddle Mountains Basalt (2)
-
upper Miocene (1)
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Wanapum Basalt (2)
-
-
Pliocene
-
lower Pliocene (1)
-
upper Pliocene (1)
-
-
-
Paleogene
-
Eocene
-
Clarno Formation (1)
-
lower Eocene (1)
-
upper Eocene (1)
-
-
Oligocene
-
Fish Canyon Tuff (2)
-
upper Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
Danian (2)
-
K-T boundary (4)
-
-
-
-
-
upper Cenozoic (2)
-
-
Mesozoic
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Cretaceous
-
Lower Cretaceous
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Albian (1)
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Mancos Shale (1)
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Middle Cretaceous (1)
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Upper Cretaceous
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Ferron Sandstone Member (1)
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K-T boundary (4)
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Lameta Formation (1)
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Maestrichtian (4)
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-
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Jurassic
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Ferrar Group (1)
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Lower Jurassic
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Pliensbachian (1)
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Toarcian (1)
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Triassic-Jurassic boundary (1)
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Middle Jurassic
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Bajocian
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Yakoun Group (1)
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-
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Upper Jurassic
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Oxfordian (1)
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-
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lower Mesozoic (1)
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Triassic
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Middle Triassic (1)
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Upper Triassic
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Triassic-Jurassic boundary (1)
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-
-
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Paleozoic
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Carboniferous
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Pennsylvanian (1)
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Devonian
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Upper Devonian (2)
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Madera Formation (1)
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Ordovician
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Lower Ordovician (1)
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Middle Ordovician
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Deicke Bentonite Bed (1)
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Millbrig Bentonite Bed (1)
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-
Upper Ordovician
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Caradocian (2)
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-
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Permian
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Lower Permian (1)
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upper Paleozoic (1)
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Precambrian
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North Shore Volcanics (1)
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upper Precambrian
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Proterozoic
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Mesoproterozoic (1)
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Ventersdorp Supergroup (1)
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-
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igneous rocks
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extrusive rocks (2)
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igneous rocks
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carbonatites (4)
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granophyre (2)
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kamafugite (1)
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kimberlite (4)
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peperite (1)
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plutonic rocks
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granites (1)
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pegmatite (1)
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ultramafics
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peridotites
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lherzolite (1)
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spinel peridotite (1)
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-
pyroxenite
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garnet pyroxenite (1)
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-
-
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volcanic rocks
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adakites (1)
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andesites (20)
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basalts
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alkali basalts
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alkali olivine basalt (2)
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hawaiite (1)
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mugearite (2)
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flood basalts (13)
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mid-ocean ridge basalts (2)
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ocean-island basalts (1)
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olivine basalt (1)
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olivine tholeiite (1)
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shoshonite (3)
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tholeiite (8)
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tholeiitic basalt (4)
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trap rocks (1)
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basanite (1)
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benmoreite (1)
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dacites (13)
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glasses
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obsidian (3)
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volcanic glass (7)
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latite (1)
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leucitite (2)
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nephelinite (1)
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phonolites (2)
-
pyroclastics
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andesite tuff (1)
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ash-flow tuff (14)
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hyaloclastite (2)
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ignimbrite (16)
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pumice (22)
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rhyolite tuff (7)
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scoria (7)
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tuff (31)
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welded tuff (4)
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rhyodacites (3)
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rhyolites
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pantellerite (2)
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tephrite (1)
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trachyandesites (3)
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trachytes (3)
-
-
-
volcanic ash (25)
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metamorphic rocks
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K-bentonite (1)
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metamorphic rocks
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eclogite (1)
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metasedimentary rocks (1)
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metavolcanic rocks (1)
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turbidite (3)
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-
minerals
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carbonates
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calcite (1)
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-
halides
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fluorides
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topaz (1)
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-
-
hydrates (1)
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K-bentonite (1)
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native elements
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diamond (1)
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graphite (1)
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oxides
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akaganeite (1)
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ilmenite (1)
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iron oxides (2)
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magnetite (2)
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perovskite (1)
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ulvospinel (1)
-
-
silicates
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chain silicates
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amphibole group
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clinoamphibole
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hornblende (2)
-
-
-
pyroxene group
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clinopyroxene (3)
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orthopyroxene (1)
-
-
-
framework silicates
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feldspar group
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alkali feldspar
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anorthoclase (1)
-
sanidine (6)
-
-
plagioclase
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albite (1)
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andesine (1)
-
-
-
nepheline group
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nepheline (1)
-
-
scapolite group
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scapolite (1)
-
-
silica minerals
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quartz (3)
-
-
-
orthosilicates
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nesosilicates
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olivine group
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olivine (4)
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-
topaz (1)
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zircon group
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zircon (5)
-
-
-
sorosilicates
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epidote group
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allanite (1)
-
-
melilite group
-
melilite (1)
-
-
-
-
sheet silicates
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mica group
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biotite (4)
-
-
-
-
sulfates (1)
-
sulfides (1)
-
-
Primary terms
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absolute age (52)
-
Africa
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Afar (2)
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Central Africa
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Congo Democratic Republic
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Kivu Congo Democratic Republic
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Nyiragongo (1)
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-
-
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East Africa
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Djibouti (5)
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Ethiopia (5)
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Ethiopian Rift (1)
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Kenya
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Kenya Rift valley (2)
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Lake Turkana (1)
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Tanzania
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Oldoinyo Lengai (4)
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East African Lakes
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Lake Turkana (1)
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East African Rift (1)
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North Africa
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Egypt (1)
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Tunisia (1)
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Southern Africa
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Botswana (1)
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Lesotho (2)
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South Africa
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Free State South Africa (1)
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Transvaal region (1)
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Witwatersrand (1)
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-
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West Africa
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Cameroon
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Mount Cameroon (1)
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-
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Antarctica
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Antarctic ice sheet (1)
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West Antarctica (1)
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Arctic Ocean
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Arctic region
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Greenland
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Asia
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Arabian Peninsula
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Far East
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China (1)
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Indonesia
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Java
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Merapi (2)
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Krakatoa (1)
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Sumatra
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Toba Lake (6)
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Sunda Arc (3)
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Japan
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Honshu
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Izu-shichito
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Izu-Oshima
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Mount Mihara (1)
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Kyushu
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Kirishima (1)
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Nagasaki Japan
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Unzen (1)
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Malaysia (1)
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Mongolia (1)
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Philippine Islands
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Luzon
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Mount Pinatubo (7)
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Taiwan
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Gobi Desert (1)
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Himalayas (2)
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Indian Peninsula
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India
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Ghats
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Gujarat India
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Madhya Pradesh India
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Northeastern India
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Meghalaya India (1)
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Kamchatka Russian Federation
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Kamchatka Peninsula
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Karakoram (1)
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Middle East
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Russian Pacific region (3)
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Atlantic Ocean
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South Atlantic
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Atlantic region (1)
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atmosphere (7)
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Australasia
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Australia
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New Zealand
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Ruapehu (5)
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Tarawera volcanic complex (2)
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Taupo volcanic zone (5)
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Tongariro (1)
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Waihi New Zealand (1)
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Waikato Basin (1)
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Waiotapu New Zealand (1)
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Papua New Guinea
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Canada
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Quebec
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Western Canada
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Alberta
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British Columbia
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Northwest Territories
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Norman Wells Northwest Territories (1)
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Saskatchewan (1)
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Yukon Territory (2)
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carbon
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C-13/C-12 (9)
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C-14 (15)
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organic carbon (1)
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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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Guadeloupe
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La Grande Soufriere (1)
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Martinique
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Mount Pelee (3)
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Montserrat Island
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Soufriere Hills (1)
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Saint Kitts (1)
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Soufriere (2)
-
-
-
-
-
catalogs (1)
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Cenozoic
-
Koobi Fora Formation (1)
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Quaternary
-
Cordilleran ice sheet (1)
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Holocene
-
lower Holocene (3)
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middle Holocene (1)
-
upper Holocene (20)
-
-
Pleistocene
-
Bandelier Tuff (2)
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Bishop Tuff (3)
-
lower Pleistocene (2)
-
upper Pleistocene
-
Wisconsinan (1)
-
-
-
upper Quaternary (11)
-
-
Tertiary
-
Apache Leap Tuff (1)
-
John Day Formation (2)
-
middle Tertiary (1)
-
Neogene
-
Miocene
-
Columbia River Basalt Group (12)
-
Ellensburg Formation (1)
-
Grande Ronde Basalt (5)
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middle Miocene (1)
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Picture Gorge Basalt (1)
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Saddle Mountains Basalt (2)
-
upper Miocene (1)
-
Wanapum Basalt (2)
-
-
Pliocene
-
lower Pliocene (1)
-
upper Pliocene (1)
-
-
-
Paleogene
-
Eocene
-
Clarno Formation (1)
-
lower Eocene (1)
-
upper Eocene (1)
-
-
Oligocene
-
Fish Canyon Tuff (2)
-
upper Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
Danian (2)
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K-T boundary (4)
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-
-
-
-
upper Cenozoic (2)
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Central America
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Costa Rica
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Arenal (1)
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Irazu (3)
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El Salvador
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Guatemala
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Pacaya (3)
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Honduras (3)
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Managua Nicaragua (1)
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Masaya (4)
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Panama (2)
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Chordata
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Vertebrata
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Tetrapoda
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Mammalia
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Theria
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Eutheria
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Primates
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Hominidae (1)
-
-
-
-
-
Reptilia
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Diapsida
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Archosauria
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dinosaurs
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Saurischia
-
Sauropodomorpha
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Sauropoda
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Titanosauridae (1)
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-
-
-
-
-
-
-
-
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clay mineralogy (1)
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climate change (7)
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crust (10)
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crystal chemistry (1)
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crystal growth (4)
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dams (2)
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data processing (21)
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Deep Sea Drilling Project
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IPOD
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Leg 74
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DSDP Site 525 (2)
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deformation (4)
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Earth (1)
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earthquakes (24)
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East Pacific Ocean Islands
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Hawaii
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Hawaiian Volcano Observatory (2)
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Kohala (1)
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Puu Oo (1)
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Mauna Loa (4)
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ecology (2)
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environmental geology (4)
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Europe
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Southern Europe
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Iberian Peninsula
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Italy
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Western Europe
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Wales
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explosions (2)
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faults (31)
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geochemistry (55)
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Indian Ocean Islands
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Integrated Ocean Drilling Program
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Expedition 324
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Protista
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Mesozoic
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Ocean Drilling Program
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Leg 165 (1)
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Leg 198
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