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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Nile Valley (2)
-
North Africa
-
Morocco (1)
-
-
Southern Africa
-
South Africa (1)
-
-
West Africa
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Niger (1)
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-
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Antelope Valley (1)
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Asia
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Brahmaputra River (2)
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Central Asia
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Kazakhstan (1)
-
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Far East
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China (2)
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Indonesia (1)
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Lesser Sunda Islands
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Timor (1)
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-
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Middle East
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Turkey (1)
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Tibetan Plateau (2)
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-
Atlantic Ocean
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North Atlantic
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North Sea (1)
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Avalon Zone (1)
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Bear River Range (1)
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Blue Mountains (2)
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Canada
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Eastern Canada
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Maritime Provinces
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Nova Scotia (1)
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Newfoundland and Labrador
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Newfoundland (1)
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Quebec (1)
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Western Canada
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Alberta (1)
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British Columbia
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Queen Charlotte Islands (1)
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Northwest Territories
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Tuktoyaktuk Peninsula (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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Dominica (1)
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-
-
-
-
Cascade Range (3)
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Cascadia subduction zone (1)
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Coast Ranges (1)
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Colorado River (34)
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Colorado River basin (1)
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Columbia River (1)
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Commonwealth of Independent States
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Kazakhstan (1)
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Death Valley (10)
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Dixie Valley (3)
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East Pacific Ocean Islands
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Hawaii
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Mauna Loa (1)
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El Paso Mountains (1)
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Europe
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Central Europe
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Germany (1)
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Southern Europe
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Italy (1)
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Western Europe
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Scandinavia
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Sweden (1)
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United Kingdom
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Great Britain
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England (1)
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-
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Glass Mountains (2)
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Grand Canyon (98)
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Grant Range (1)
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Guadalupe Mountains (1)
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Imperial Valley (1)
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Indian Ocean
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Red Sea
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Gulf of Suez (1)
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-
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Lake Mead (2)
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Long Valley (1)
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Malay Archipelago
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Timor (1)
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Marble Canyon (3)
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Mediterranean Sea
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East Mediterranean
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Aegean Sea (1)
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Ionian Sea
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Gulf of Corinth (1)
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-
-
-
Mexico
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Chihuahua Mexico (1)
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Sierra Madre Occidental (2)
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Sinaloa Mexico (1)
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Sonora Mexico (3)
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North America
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Appalachians
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Northern Appalachians (1)
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Basin and Range Province
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Great Basin (1)
-
-
Great Plains
-
Southern Great Plains (1)
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Gulf Coastal Plain (1)
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Hueco Bolson (1)
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North American Cordillera (13)
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Pedregosa Basin (4)
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Rio Grande Rift (12)
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Rocky Mountains
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U. S. Rocky Mountains
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Wasatch Range (1)
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-
-
Sonoran Desert (2)
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Transcontinental Arch (1)
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Western Interior
-
Western Interior Seaway (1)
-
-
Western Overthrust Belt (6)
-
-
Oceania
-
Polynesia
-
Hawaii
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Mauna Loa (1)
-
-
-
-
Owens Valley (2)
-
Pacific Coast (1)
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific
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Gorda Rise (1)
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Gulf of California (3)
-
Juan de Fuca Ridge (1)
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Mendocino fracture zone (2)
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-
-
North Pacific
-
Northeast Pacific
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Gorda Rise (1)
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Gulf of California (3)
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Juan de Fuca Ridge (1)
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Mendocino fracture zone (2)
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Northwest Pacific (1)
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West Pacific
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Northwest Pacific (1)
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-
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Permian Basin (1)
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Raft River basin (1)
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Railroad Valley (4)
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Red Hill (1)
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Red Sea region (1)
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Roberts Mountains (3)
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Ruby Mountains (1)
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Salt River (1)
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San Andreas Fault (5)
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San Andres Mountains (1)
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San Juan Basin (2)
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San Pedro River (1)
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Santa Cruz River (1)
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Santa Rita Mountains (1)
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Sawtooth Range (1)
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Sierra Nevada (13)
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Snake Range (3)
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South America
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Andes
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Western Cordillera (1)
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Brazil
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Para Brazil (1)
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Parana Basin (1)
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Stewart Valley (1)
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United States
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Alaska (1)
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Amargosa Desert (1)
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Anadarko Basin (1)
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Arizona
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Apache County Arizona (5)
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Cochise County Arizona
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Tombstone Arizona (1)
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Coconino County Arizona
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Flagstaff Arizona (1)
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Glen Canyon Dam (4)
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Meteor Crater (4)
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Gila County Arizona
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Tonto Basin (1)
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Graham County Arizona (1)
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Greenlee County Arizona (1)
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La Paz County Arizona (1)
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Maricopa County Arizona (1)
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Mogollon Rim (2)
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Mohave County Arizona (67)
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Navajo County Arizona (5)
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Pinal County Arizona (1)
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Santa Cruz County Arizona (1)
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Tucson Basin (1)
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Yavapai County Arizona (8)
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Yuma County Arizona
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Yuma Arizona (1)
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-
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Arkansas River valley (1)
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California
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Butte County California (1)
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Central California (3)
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El Dorado County California (1)
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Garlock Fault (2)
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Inyo County California
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Inyo Mountains (3)
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Panamint Range (2)
-
-
Kern County California (1)
-
Lassen County California (2)
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Mono County California (3)
-
Northern California (5)
-
Placer County California (1)
-
Plumas County California (1)
-
Riverside County California (1)
-
San Bernardino County California (4)
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Sierra Nevada Batholith (1)
-
Southern California (7)
-
Tulare County California (1)
-
-
Colorado
-
Moffat County Colorado (1)
-
Weld County Colorado (1)
-
-
Colorado Plateau (89)
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Columbia Plateau (2)
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Denver Basin (1)
-
Dinosaur National Monument (1)
-
Eastern U.S. (1)
-
Four Corners (4)
-
Gila River (1)
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Great Basin (1)
-
Hawaii
-
Mauna Loa (1)
-
-
Hueco Mountains (1)
-
Hurricane Fault (7)
-
Idaho
-
Bannock Range (1)
-
Bear Lake County Idaho (1)
-
Caribou County Idaho (1)
-
Cassia County Idaho (1)
-
Power County Idaho (1)
-
Snake River plain (5)
-
-
Lake Powell (1)
-
Lake Tahoe (1)
-
Mississippi Valley (2)
-
Missouri
-
Shannon County Missouri (1)
-
-
Mojave Desert (6)
-
Montana (2)
-
Nevada
-
Arrow Canyon Range (1)
-
Carlin Trend (1)
-
Carson City County Nevada (1)
-
Churchill County Nevada (6)
-
Clark County Nevada
-
Las Vegas Nevada (3)
-
-
Douglas County Nevada (1)
-
Egan Range (2)
-
Elko County Nevada (6)
-
Esmeralda County Nevada
-
Silver Peak Mountains (1)
-
-
Eureka County Nevada (4)
-
Humboldt County Nevada (1)
-
Lake Mead Fault (1)
-
Lander County Nevada (2)
-
Lincoln County Nevada (1)
-
Lyon County Nevada (3)
-
Mineral County Nevada (1)
-
Nevada Test Site (3)
-
Nye County Nevada
-
Grant Canyon Field (1)
-
Trap Spring Field (1)
-
-
Pershing County Nevada (6)
-
Storey County Nevada (1)
-
Toquima Range (2)
-
Washoe County Nevada (5)
-
White Pine County Nevada (9)
-
-
New England (1)
-
New Mexico
-
Catron County New Mexico (1)
-
Datil-Mogollon volcanic field (2)
-
Dona Ana County New Mexico (1)
-
Hidalgo County New Mexico (1)
-
Jemez Lineament (1)
-
Jornada del Muerto (1)
-
Luna County New Mexico
-
Florida Mountains (1)
-
-
Otero County New Mexico (1)
-
Sierra County New Mexico (4)
-
Socorro County New Mexico (1)
-
-
Oklahoma
-
Arbuckle Mountains (1)
-
Major County Oklahoma (1)
-
-
Oregon
-
Crook County Oregon (1)
-
Deschutes County Oregon (1)
-
Jackson County Oregon (1)
-
Klamath County Oregon (1)
-
Lake County Oregon (1)
-
-
Orogrande Basin (1)
-
Owyhee Mountains (1)
-
Palo Duro Basin (1)
-
Paradox Basin (1)
-
Sevier orogenic belt (3)
-
Southwestern U.S. (13)
-
Tennessee (1)
-
Texas
-
Amarillo Uplift (1)
-
Armstrong County Texas (1)
-
Culberson County Texas (1)
-
Dalhart Basin (1)
-
Hudspeth County Texas (1)
-
Val Verde Basin (1)
-
West Texas (1)
-
-
Trans-Pecos (2)
-
Truckee River (1)
-
U. S. Rocky Mountains
-
Wasatch Range (1)
-
-
Utah
-
Beaver County Utah (2)
-
Box Elder County Utah (1)
-
Canyonlands National Park (1)
-
Daggett County Utah (1)
-
Drum Mountains (1)
-
Emery County Utah (1)
-
Garfield County Utah (3)
-
Grand County Utah
-
Moab Utah (1)
-
-
Great Salt Lake (1)
-
Iron County Utah (2)
-
Juab County Utah (2)
-
Kane County Utah (8)
-
Millard County Utah
-
House Range (1)
-
-
Piute County Utah (2)
-
Salt Lake County Utah (1)
-
San Juan County Utah (4)
-
Sanpete County Utah (1)
-
Sevier County Utah (2)
-
Sevier Desert (1)
-
Tooele County Utah (1)
-
Wasatch Plateau (1)
-
Washington County Utah (12)
-
Wayne County Utah (4)
-
-
Virgin River valley (1)
-
Walker Lane (3)
-
Wasatch fault zone (5)
-
Wasatch Front (1)
-
Washington (2)
-
Western U.S. (46)
-
Wyoming
-
Lincoln County Wyoming (1)
-
-
Yavapai Province (2)
-
Yellowstone National Park (2)
-
-
USSR (1)
-
Walker Lake (1)
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White Mountains (2)
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White Pine Mine (1)
-
-
commodities
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brines (1)
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energy sources (9)
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geothermal energy (7)
-
metal ores
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base metals (1)
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copper ores (6)
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gold ores (4)
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iron ores (1)
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magnesium ores (1)
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molybdenum ores (2)
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silver ores (1)
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titanium ores (1)
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uranium ores (2)
-
-
mineral deposits, genesis (12)
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mineral exploration (6)
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oil and gas fields (7)
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petroleum
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natural gas (6)
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water resources (1)
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elements, isotopes
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carbon
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C-13/C-12 (12)
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C-14 (7)
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chemical ratios (1)
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halogens
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chlorine
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chloride ion (1)
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fluorine (4)
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-
hydrogen
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D/H (4)
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deuterium (1)
-
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isotope ratios (24)
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isotopes
-
radioactive isotopes
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Ar-40/Ar-39 (2)
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C-14 (7)
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
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Re-187/Os-188 (1)
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stable isotopes
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Ar-40/Ar-39 (2)
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C-13/C-12 (12)
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D/H (4)
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deuterium (1)
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He-3 (3)
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He-4/He-3 (1)
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Nd-144/Nd-143 (4)
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O-18/O-16 (8)
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Os-188/Os-187 (1)
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
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Re-187/Os-188 (1)
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S-34/S-32 (1)
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Sr-87/Sr-86 (9)
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metals
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actinides
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thorium (1)
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uranium (2)
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alkali metals
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sodium (1)
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alkaline earth metals
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barium (2)
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calcium (1)
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magnesium (1)
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strontium
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Sr-87/Sr-86 (9)
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arsenic (1)
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copper (5)
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hafnium (1)
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iron
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ferric iron (1)
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lead
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
-
-
molybdenum (2)
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platinum group
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osmium
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Os-188/Os-187 (1)
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Re-187/Os-188 (1)
-
-
-
precious metals (2)
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rare earths
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neodymium
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Nd-144/Nd-143 (4)
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rhenium
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Re-187/Os-188 (1)
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titanium (1)
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vanadium (1)
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zinc (1)
-
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noble gases
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argon
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Ar-40/Ar-39 (2)
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helium
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He-3 (3)
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He-4/He-3 (1)
-
-
radon (1)
-
-
oxygen
-
O-18/O-16 (8)
-
-
sulfur
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S-34/S-32 (1)
-
-
-
fossils
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Chordata
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Vertebrata
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Pisces
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Chondrichthyes
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Euselachii (1)
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Osteichthyes
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Sarcopterygii
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Dipnoi (1)
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Tetrapoda
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Amphibia
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Lepospondyli (1)
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Mammalia
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Theria
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Eutheria
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Artiodactyla
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Ruminantia (1)
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Carnivora (1)
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Chiroptera (1)
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Edentata (2)
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Rodentia
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Myomorpha
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Cricetidae
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Neotoma (2)
-
-
-
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Ungulata (1)
-
-
-
-
Reptilia
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Diapsida
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Archosauria
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dinosaurs
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Ornithischia (1)
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Saurischia
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Sauropodomorpha (1)
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Theropoda (2)
-
-
-
-
-
Synapsida
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Therapsida (1)
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-
-
-
-
-
coprolites (2)
-
eukaryotes (1)
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Graptolithina (1)
-
ichnofossils
-
Eubrontes (1)
-
Grallator (1)
-
-
Invertebrata
-
Arthropoda
-
Chelicerata
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Arachnida (1)
-
-
Mandibulata
-
Crustacea
-
Branchiopoda (1)
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Ostracoda
-
Podocopida (1)
-
-
-
-
Trilobitomorpha
-
Trilobita (6)
-
-
-
Brachiopoda
-
Articulata
-
Orthida (1)
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Rhynchonellida (1)
-
-
Inarticulata (1)
-
-
Bryozoa (2)
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Cnidaria
-
Anthozoa
-
Zoantharia
-
Rugosa (2)
-
Scleractinia (1)
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Tabulata (1)
-
-
-
Hydrozoa (1)
-
-
Echinodermata
-
Asterozoa
-
Stelleroidea
-
Asteroidea (1)
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-
-
-
Mollusca
-
Bivalvia
-
Ostreoidea
-
Ostreidae
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Ostrea (1)
-
-
-
-
Cephalopoda
-
Ammonoidea
-
Ammonites (1)
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Goniatitida (1)
-
-
-
Gastropoda
-
Archaeogastropoda (2)
-
-
-
Porifera
-
Hexactinellida (2)
-
Stromatoporoidea (1)
-
-
Protista
-
Foraminifera
-
Fusulinina
-
Fusulinidae (2)
-
-
-
Thecamoeba (1)
-
-
Vermes
-
Annelida (1)
-
-
-
microfossils
-
Conodonta (7)
-
Fusulinina
-
Fusulinidae (2)
-
-
problematic microfossils (4)
-
-
palynomorphs
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acritarchs (2)
-
-
Plantae
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algae
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diatoms (2)
-
-
Pteridophyta
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Filicopsida
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Pecopteris (1)
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Lycopsida
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Lepidodendron (1)
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Stigmaria (1)
-
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Sphenopsida
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Equisetales
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Calamites (1)
-
-
-
-
Spermatophyta
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Angiospermae (1)
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-
-
problematic fossils
-
problematic microfossils (4)
-
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thallophytes (4)
-
tracks (3)
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trails (1)
-
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geochronology methods
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(U-Th)/He (9)
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Ar/Ar (18)
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fission-track dating (7)
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He/He (2)
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K/Ar (9)
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optically stimulated luminescence (4)
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paleomagnetism (15)
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Pb/Pb (2)
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radiation damage (1)
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Rb/Sr (3)
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Sm/Nd (1)
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tephrochronology (5)
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Th/U (1)
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thermochronology (14)
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thermoluminescence (1)
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U/Pb (17)
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uranium disequilibrium (1)
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geologic age
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Cenozoic
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Gila Conglomerate (1)
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middle Cenozoic (1)
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Quaternary
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Hat Creek Basalt (1)
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Holocene
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lower Holocene (1)
-
upper Holocene (3)
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lower Quaternary (1)
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Pleistocene
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Bishop Tuff (1)
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Lake Lahontan (2)
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lower Pleistocene (2)
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upper Pleistocene
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Weichselian
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upper Weichselian
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Allerod (1)
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Younger Dryas (2)
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Wisconsinan (2)
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upper Quaternary (6)
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Tertiary
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Challis Volcanics (1)
-
lower Tertiary (1)
-
middle Tertiary (2)
-
Muddy Creek Formation (3)
-
Neogene
-
Miocene
-
Ash Hollow Formation (1)
-
Columbia River Basalt Group (3)
-
lower Miocene (2)
-
middle Miocene (3)
-
Peach Springs Tuff (4)
-
upper Miocene
-
Messinian (2)
-
-
-
Ogallala Formation (4)
-
Pliocene
-
Cimmerian (1)
-
lower Pliocene (1)
-
upper Pliocene (1)
-
-
Salt Lake Formation (1)
-
-
Paleogene
-
Claron Formation (1)
-
Eocene
-
lower Eocene (1)
-
upper Eocene
-
Chadronian (1)
-
-
-
Oligocene
-
Fish Canyon Tuff (1)
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lower Oligocene (2)
-
upper Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
K-T boundary (1)
-
-
-
Sespe Formation (1)
-
Wasatch Formation (1)
-
-
-
upper Cenozoic (10)
-
-
Lake Bonneville (3)
-
Mesozoic
-
Cretaceous
-
Dakota Formation (2)
-
Mancos Shale (2)
-
Upper Cretaceous
-
Campanian (1)
-
Cenomanian (1)
-
Frontier Formation (1)
-
K-T boundary (1)
-
Senonian (1)
-
-
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Franciscan Complex (1)
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Glen Canyon Group (1)
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Jurassic
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Carmel Formation (3)
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Lower Jurassic
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Hettangian (1)
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lower Liassic (1)
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Triassic-Jurassic boundary (1)
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Middle Jurassic
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Bajocian (1)
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Page Sandstone (7)
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Twin Creek Limestone (2)
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Upper Jurassic
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Entrada Sandstone (1)
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-
-
Kayenta Formation (4)
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lower Mesozoic (2)
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Moenave Formation (3)
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Navajo Sandstone (13)
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Nugget Sandstone (2)
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Triassic
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Lower Triassic
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Thaynes Formation (1)
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-
Middle Triassic
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Ladinian (1)
-
-
Moenkopi Formation (3)
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Upper Triassic
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Chinle Formation (4)
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Norian (1)
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Petrified Forest Member (1)
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Shinarump Member (1)
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Triassic-Jurassic boundary (1)
-
-
-
Wingate Sandstone (1)
-
-
Paleozoic
-
Bird Spring Formation (1)
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Cambrian
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Bonanza King Formation (1)
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Lower Cambrian
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Poleta Formation (1)
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Tommotian (2)
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Middle Cambrian
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Bright Angel Shale (1)
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Tapeats Sandstone (3)
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Upper Cambrian
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Dresbachian (2)
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Wilberns Formation (1)
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-
-
Carboniferous
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Ely Limestone (2)
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Mississippian
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Chainman Shale (1)
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Redwall Limestone (1)
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Upper Mississippian (4)
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Pennsylvanian
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Hermosa Group (1)
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Lower Pennsylvanian
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Middle Pennsylvanian
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Manakacha Formation (1)
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Upper Pennsylvanian
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Missourian (1)
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Virgilian (3)
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Wescogame Formation (1)
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Watahomigi Formation (1)
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-
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Devonian
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Lower Devonian (2)
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Middle Devonian
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Upper Devonian
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Frasnian (2)
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Oquirrh Formation (1)
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Ordovician
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Lower Ordovician (2)
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Viola Limestone (1)
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Permian
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Coconino Sandstone (5)
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Esplanade Sandstone Member (1)
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Guadalupian
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Roadian (1)
-
-
Kaibab Formation (6)
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Lower Permian
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Cisuralian
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Sakmarian (1)
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Leonardian
-
Bone Spring Limestone (1)
-
-
Wolfcampian
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Hueco Limestone (2)
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-
-
Toroweap Formation (1)
-
-
Silurian
-
Henryhouse Formation (1)
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Middle Silurian
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Roberts Mountains Formation (2)
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-
-
Supai Formation (4)
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upper Paleozoic (1)
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Phanerozoic (1)
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Precambrian
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Archean (2)
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Chuar Group (12)
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Johnnie Formation (1)
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Unkar Group (13)
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upper Precambrian
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Proterozoic
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Mesoproterozoic
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Apache Group (1)
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Neoproterozoic
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Cryogenian (1)
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Paleoproterozoic (8)
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igneous rocks
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-
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porphyry (5)
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basanite (4)
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ignimbrite (6)
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scoria (1)
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phosphates
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-
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pyroxene group
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-
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framework silicates
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zeolite group
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-
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orthosilicates
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olivine group
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zircon group
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zircon (20)
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-
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sorosilicates
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chevkinite group
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sheet silicates
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sulfates
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sulfides (1)
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vanadates
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carnotite (1)
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-
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Primary terms
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absolute age (48)
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Africa
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-
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carbon
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C-13/C-12 (12)
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C-14 (7)
-
-
Caribbean region
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Lesser Antilles
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-
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-
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catalogs (2)
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Cenozoic
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middle Cenozoic (1)
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Quaternary
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Hat Creek Basalt (1)
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lower Holocene (1)
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lower Quaternary (1)
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Pleistocene
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Bishop Tuff (1)
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lower Pleistocene (2)
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upper Pleistocene
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Weichselian
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upper Weichselian
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Allerod (1)
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Bolling (1)
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Younger Dryas (2)
-
-
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Wisconsinan (2)
-
-
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upper Quaternary (6)
-
-
Tertiary
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Challis Volcanics (1)
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lower Tertiary (1)
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middle Tertiary (2)
-
Muddy Creek Formation (3)
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Neogene
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Miocene
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Ash Hollow Formation (1)
-
Columbia River Basalt Group (3)
-
lower Miocene (2)
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middle Miocene (3)
-
Peach Springs Tuff (4)
-
upper Miocene
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Messinian (2)
-
-
-
Ogallala Formation (4)
-
Pliocene
-
Cimmerian (1)
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lower Pliocene (1)
-
upper Pliocene (1)
-
-
Salt Lake Formation (1)
-
-
Paleogene
-
Claron Formation (1)
-
Eocene
-
lower Eocene (1)
-
upper Eocene
-
Chadronian (1)
-
-
-
Oligocene
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Fish Canyon Tuff (1)
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lower Oligocene (2)
-
upper Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
K-T boundary (1)
-
-
-
Sespe Formation (1)
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Wasatch Formation (1)
-
-
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upper Cenozoic (10)
-
-
chemical analysis (2)
-
Chordata
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Vertebrata
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Pisces
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Chondrichthyes
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Euselachii (1)
-
-
Osteichthyes
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Sarcopterygii
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Dipnoi (1)
-
-
-
-
Tetrapoda
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Amphibia
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Lepospondyli (1)
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Mammalia
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Theria
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Eutheria
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Artiodactyla
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Ruminantia (1)
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Rodentia
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Myomorpha
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Cricetidae
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Neotoma (2)
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Ungulata (1)
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-
-
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Reptilia
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Diapsida
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Archosauria
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Ornithischia (1)
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Theropoda (2)
-
-
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Synapsida
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Therapsida (1)
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-
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clay mineralogy (1)
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climate change (7)
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Graptolithina (1)
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ichnofossils
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Eubrontes (1)
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Grallator (1)
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igneous rocks
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lherzolite (1)
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spinel peridotite (1)
-
-
-
-
porphyry (5)
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volcanic rocks
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andesites (2)
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basalts
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alkali basalts
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hawaiite (2)
-
-
-
basanite (4)
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glasses
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volcanic glass (3)
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-
pyroclastics
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ash-flow tuff (4)
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ignimbrite (6)
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tuff (9)
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welded tuff (1)
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rhyolites (3)
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inclusions
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fluid inclusions (1)
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Indian Ocean
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Red Sea
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intrusions (36)
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Invertebrata
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Arthropoda
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Chelicerata
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Arachnida (1)
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Mandibulata
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Crustacea
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Ostracoda
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Podocopida (1)
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-
-
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Trilobitomorpha
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Trilobita (6)
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Brachiopoda
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Articulata
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Orthida (1)
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Inarticulata (1)
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Bryozoa (2)
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Cnidaria
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Zoantharia
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Rugosa (2)
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Scleractinia (1)
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Tabulata (1)
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Hydrozoa (1)
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Echinodermata
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Asterozoa
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Stelleroidea
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-
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Mollusca
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Bivalvia
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Ostrea (1)
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Cephalopoda
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Gastropoda
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Archaeogastropoda (2)
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Porifera
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Hexactinellida (2)
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Protista
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Foraminifera
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Fusulinina
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Thecamoeba (1)
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Vermes
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isostasy (7)
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stable isotopes
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Pb-206/Pb-204 (1)
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S-34/S-32 (1)
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land subsidence (2)
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Malay Archipelago
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Ionian Sea
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-
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Mesozoic
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Cretaceous
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Dakota Formation (2)
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Mancos Shale (2)
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Upper Cretaceous
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Campanian (1)
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Cenomanian (1)
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Frontier Formation (1)
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K-T boundary (1)
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Senonian (1)
-
-
-
Franciscan Complex (1)
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Glen Canyon Group (1)
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Jurassic
-
Carmel Formation (3)
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Lower Jurassic
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Hettangian (1)
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lower Liassic (1)
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Sinemurian (1)
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Triassic-Jurassic boundary (1)
-
-
Middle Jurassic
-
Bajocian (1)
-
Page Sandstone (7)
-
-
Twin Creek Limestone (2)
-
Upper Jurassic
-
Entrada Sandstone (1)
-
-
-
Kayenta Formation (4)
-
lower Mesozoic (2)
-
Moenave Formation (3)
-
Navajo Sandstone (13)
-
Nugget Sandstone (2)
-
Triassic
-
Lower Triassic
-
Thaynes Formation (1)
-
-
Middle Triassic
-
Ladinian (1)
-
-
Moenkopi Formation (3)
-
Upper Triassic
-
Chinle Formation (4)
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Norian (1)
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Petrified Forest Member (1)
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Shinarump Member (1)
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Triassic-Jurassic boundary (1)
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-
-
Wingate Sandstone (1)
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metal ores
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Sr-87/Sr-86 (9)
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metamorphic rocks
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Mexico
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North America
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Appalachians
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Basin and Range Province
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North Pacific
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Paleozoic
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Bird Spring Formation (1)
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Cambrian
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Bonanza King Formation (1)
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Lower Cambrian
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Poleta Formation (1)
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Tommotian (2)
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Middle Cambrian
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Bright Angel Shale (1)
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Upper Cambrian
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Dresbachian (2)
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Wilberns Formation (1)
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Carboniferous
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Ely Limestone (2)
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Pennsylvanian
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Middle Pennsylvanian
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Manakacha Formation (1)
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Upper Pennsylvanian
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Watahomigi Formation (1)
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Devonian
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Lower Devonian (2)
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Frasnian (2)
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Oquirrh Formation (1)
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Ordovician
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Viola Limestone (1)
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Permian
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Coconino Sandstone (5)
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Esplanade Sandstone Member (1)
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Guadalupian
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Roadian (1)
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Kaibab Formation (6)
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Lower Permian
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Cisuralian
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Sakmarian (1)
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Leonardian
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Bone Spring Limestone (1)
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Wolfcampian
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Hueco Limestone (2)
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Toroweap Formation (1)
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Silurian
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Henryhouse Formation (1)
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Middle Silurian
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Roberts Mountains Formation (2)
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Supai Formation (4)
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plate tectonics (42)
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Precambrian
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Chuar Group (12)
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Johnnie Formation (1)
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upper Precambrian
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Proterozoic
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Mesoproterozoic
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Neoproterozoic
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clastic rocks
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oil shale (1)
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sedimentary structures
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bedding plane irregularities
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biogenic structures
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South America
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