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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
East Africa
-
Kenya
-
Lake Magadi (1)
-
-
Lake Natron (1)
-
Lake Turkana (1)
-
-
East African Lakes
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Lake Magadi (1)
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Lake Natron (1)
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Lake Tanganyika (1)
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Lake Turkana (1)
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Limpopo Basin (1)
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Madagascar (1)
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North Africa
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Egypt
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Eastern Desert (1)
-
-
-
Southern Africa
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Namibia (1)
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South Africa (2)
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Antarctica
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Ross Island (1)
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Transantarctic Mountains (1)
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Victoria Land (1)
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Antelope Valley (1)
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Arctic Ocean
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Asia
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Baikal rift zone (2)
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Far East
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Burma (1)
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China
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Japan
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Korea
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Yakutia Russian Federation (1)
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Atlantic Ocean
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Australasia
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Australia
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Lake Frome (1)
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Tasmania Australia (1)
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Victoria Australia
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Western Australia
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Carnarvon Basin (1)
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New Zealand
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Papua (1)
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Papua New Guinea
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Ok Tedi Mine (1)
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Black Mountains (1)
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Canada
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Eastern Canada
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Meguma Terrane (1)
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Newfoundland and Labrador
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Ontario
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Western Canada
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Alberta
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British Columbia (3)
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Central America
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Belize (1)
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Chalk Aquifer (1)
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Commonwealth of Independent States
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Russian Federation
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Buryat Russian Federation (1)
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Death Valley (1)
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Europe
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Central Europe
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Germany
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Hungary
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Danube River (1)
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Southern Europe
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Iberian Peninsula
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Spain
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-
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Ebro Basin (1)
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-
-
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Italy
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Apennines
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Tuscany Italy
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Umbria Italy (1)
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Serbia
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Western Europe
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Belgium (2)
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United Kingdom
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Shetland Islands (1)
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Wales
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Northern Ireland (1)
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Grand Canyon (5)
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Indian Ocean
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Arabian Sea
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Red Sea (1)
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Indian Ocean Islands
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Lake Mead (2)
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Mediterranean region (1)
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Mediterranean Sea
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West Mediterranean
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Gulf of Lion (1)
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-
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Mexico
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Chihuahua Mexico (1)
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Nevado de Toluca (1)
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Michoacan Mexico
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Paricutin (1)
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Popocatepetl (1)
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Sierra Madre Occidental (1)
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Trans-Mexican volcanic belt (1)
-
-
Mount Erebus (1)
-
Newfoundland Basin (1)
-
North America
-
Appalachians
-
Valley and Ridge Province (1)
-
-
Basin and Range Province
-
Great Basin (8)
-
-
Canadian Shield
-
Grenville Province (1)
-
-
Great Plains (2)
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Kootenay Arc (1)
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North American Cordillera
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Canadian Cordillera (2)
-
-
Rocky Mountains
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Canadian Rocky Mountains (1)
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U. S. Rocky Mountains (1)
-
-
Slide Mountain Terrane (1)
-
-
Owens Valley (4)
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific
-
Gulf of California (1)
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Monterey Canyon (1)
-
-
-
North Pacific
-
Aleutian Trench (1)
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Northeast Pacific
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Gulf of California (1)
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Monterey Canyon (1)
-
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Northwest Pacific (2)
-
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West Pacific
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Northwest Pacific (2)
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-
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Pyramid Lake (2)
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Quesnellia Terrane (1)
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Round Mountain (1)
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Ruby Mountains (2)
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San Andreas Fault (3)
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San Joaquin Basin (1)
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Santa Clara Valley (1)
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Santa Cruz Mountains (1)
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Searles Lake (2)
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Shark Bay (1)
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Sierra Nevada (9)
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South America
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Andes (1)
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Argentina
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Corrientes Argentina (1)
-
-
Bolivia
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Potosi Bolivia (1)
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Brazil
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Bahia Brazil
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Reconcavo Basin (1)
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-
-
Chile (2)
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Patagonia (1)
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Peru (1)
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Venezuela
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Bolivar Venezuela (1)
-
-
-
South Island (1)
-
Twin Lakes (1)
-
United States
-
Alaska
-
Alaska Peninsula (1)
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Katmai (1)
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Novarupta (1)
-
Valley of Ten Thousand Smokes (1)
-
-
Arizona
-
Coconino County Arizona (1)
-
La Paz County Arizona (2)
-
Mohave County Arizona (4)
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San Francisco Peaks (1)
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Yuma County Arizona (1)
-
-
Arkansas
-
Washington County Arkansas (1)
-
-
California
-
Central California (3)
-
El Dorado County California (2)
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Garlock Fault (1)
-
Imperial County California (2)
-
Inyo County California
-
Coso Range (1)
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Owens Lake (2)
-
Panamint Range (1)
-
-
Kern County California
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Kern River Field (1)
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White Wolf Fault (1)
-
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Lassen County California (2)
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Los Angeles County California
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-
-
Mono County California
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Mono Basin (1)
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Mono Lake (2)
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-
Northern California (1)
-
Placer County California (1)
-
Plumas County California (1)
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Riverside County California (1)
-
Salton Trough (2)
-
San Bernardino County California (2)
-
San Diego County California (1)
-
San Emigdio Mountains (1)
-
San Gabriel Mountains (1)
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San Joaquin Valley (2)
-
Santa Clara County California (1)
-
Sierra Nevada Batholith (2)
-
Southern California (7)
-
Tehachapi Mountains (1)
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Transverse Ranges (1)
-
-
Colorado
-
Fremont County Colorado
-
Canon City Colorado (1)
-
-
-
Colorado Plateau (4)
-
Columbia Plateau (1)
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District of Columbia (1)
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Eastern California shear zone (1)
-
Florida
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Okaloosa County Florida (1)
-
-
Great Basin (8)
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Idaho
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Snake River plain (1)
-
-
Kansas
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Clark County Kansas (1)
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Ellis County Kansas (1)
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-
Kentucky
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Madison County Kentucky (1)
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Powell County Kentucky (1)
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-
Lake Tahoe (3)
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Louisiana (1)
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Maine (1)
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Massachusetts (1)
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Minnesota
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Dakota County Minnesota (1)
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Goodhue County Minnesota (1)
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Mississippi Embayment (1)
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Mississippi Valley
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Upper Mississippi Valley (1)
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Missouri (1)
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Nebraska
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Antelope County Nebraska (1)
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Banner County Nebraska (1)
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Brown County Nebraska (1)
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Cherry County Nebraska (1)
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Dawes County Nebraska (1)
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Garden County Nebraska (1)
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Kimball County Nebraska (1)
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Knox County Nebraska (2)
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Morrill County Nebraska (1)
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Nevada
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Carson City County Nevada (2)
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Clark County Nevada (2)
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Douglas County Nevada (1)
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Elko County Nevada
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East Humboldt Range (2)
-
-
Mineral County Nevada (3)
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Washoe County Nevada
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Reno Nevada (1)
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-
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New Madrid region (1)
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New Mexico (1)
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New York
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Adirondack Mountains (1)
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Finger Lakes
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Cayuga Lake (1)
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-
Schoharie County New York (1)
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Tompkins County New York (1)
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Ohio
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-
Oregon
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Clatsop County Oregon (1)
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Steens Mountain (1)
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Multnomah County Oregon (1)
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Pennsylvania (1)
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Southwestern U.S. (6)
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Tennessee
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Shelby County Tennessee
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Texas
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Big Bend National Park (1)
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Martin County Texas (1)
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Matagorda County Texas (1)
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Trans-Pecos (1)
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Great Salt Lake (2)
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Millard County Utah (1)
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Virginia
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Walker Lane (10)
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Washington
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Western U.S. (4)
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Walker Lake (2)
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commodities
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mineral deposits, genesis (6)
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placers (3)
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hydrogen
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isotope ratios (18)
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Sr-87/Sr-86 (7)
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large-ion lithophile elements (1)
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metals
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actinides
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thorium
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Th-230 (1)
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alkali metals
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cesium
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Cs-137 (1)
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alkaline earth metals
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beryllium
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Be-10 (2)
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strontium
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Sr-87/Sr-86 (7)
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arsenic (3)
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bismuth (2)
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copper (2)
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iron (1)
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lead
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Pb-207/Pb-206 (1)
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Pb-210 (1)
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molybdenum (1)
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rare earths
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cerium (2)
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neodymium
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tantalum (1)
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tin (1)
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titanium (1)
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tungsten (1)
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nitrogen (2)
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noble gases
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helium
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oxygen
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O-18/O-16 (10)
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selenium (1)
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sulfur
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S-34/S-32 (1)
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fossils
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Chordata
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Vertebrata
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Mammalia
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Theria
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Carnivora
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Chiroptera (1)
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Hippomorpha
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Reptilia
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coprolites (1)
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Invertebrata
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Brachiopoda
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Cnidaria (1)
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Echinodermata
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Mollusca
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Porifera
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Protista
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Spermatophyta
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upper Pleistocene
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Primary terms
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Ogallala Formation (2)
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Pliocene
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Paleogene
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Triassic
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metal ores
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metals
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actinides
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alkali metals
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alkaline earth metals
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strontium
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metamorphic rocks
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Mexico
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North America
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ocean floors (3)
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oxygen
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Pacific Ocean
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paleoclimatology (17)
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Paleozoic
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Cambrian
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Carboniferous
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Upper Mississippian
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Mauch Chunk Formation (1)
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Pennsylvanian
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Middle Pennsylvanian
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Monongahela Group (1)
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Upper Pennsylvanian
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Upper Carboniferous (1)
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Devonian
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Zechstein (1)
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Silurian
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Middle Silurian
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McKenzie Formation (1)
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Upper Silurian
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Cayugan
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Tonoloway Limestone (1)
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palynomorphs
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Pteridophyta
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Spermatophyta
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plate tectonics (15)
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Precambrian
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upper Precambrian
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Proterozoic
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Paleoproterozoic
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reefs (1)
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remote sensing (7)
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roads (2)
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chemically precipitated rocks
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clastic rocks
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coal (2)
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sedimentary structures
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planar bedding structures
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sedimentation (15)
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sediments
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Pyramid Gravel
The Pyramid gravel exposed in the Laughlin bluffs just south of Laughlin, N... Open Access
Schematic cross section of stratigraphic relationships in northern Mohave V... Open Access
Projections of Bouse deposit localities from the east and west sides of the... Open Access
Paleogeomorphology and evolution of the early Colorado River inferred from relationships in Mohave and Cottonwood valleys, Arizona, California, and Nevada Open Access
Birth of the lower Colorado River—Stratigraphic and geomorphic evidence for its inception near the conjunction of Nevada, Arizona, and California Available to Purchase
Abstract A detailed record of the late Cenozoic history of the lower Colorado River can be inferred from alluvial and (likely) lacustrine stratigraphy exposed in dissected alluvial basins below the mouth of the Grand Canyon. Numerous sites in Mohave, Cottonwood, and Detrital valleys contain stratigraphic records that directly bear on the mode, timing, and consequences of the river’s inception and integration in the latest Miocene–early Pliocene and its subsequent evolution through the Pleistocene. This field trip guide describes and illustrates many of these key stratigraphic relationships and, in particular, highlights evidence that supports the hypothesis of cascading lake-overflow as the principal formative mechanism of the river’s course downstream from the Grand Canyon.
Stratigraphic evidence for the role of lake spillover in the inception of the lower Colorado River in southern Nevada and western Arizona Available to Purchase
Late Miocene and early Pliocene sediments exposed along the lower Colorado River near Laughlin, Nevada, contain evidence that establishment of this reach of the river after 5.6 Ma involved flooding from lake spillover through a bedrock divide between Cottonwood Valley to the north and Mohave Valley to the south. Lacustrine marls interfingered with and conformably overlying a sequence of post–5.6 Ma fine-grained valley-fill deposits record an early phase of intermittent lacustrine inundation restricted to Cottonwood Valley. Limestone, mud, sand, and minor gravel of the Bouse Formation were subsequently deposited above an unconformity. At the north end of Mohave Valley, a coarse-grained, lithologically distinct fluvial conglomerate separates subaerial, locally derived fan deposits from subaqueous deposits of the Bouse Formation. We interpret this key unit as evidence for overtopping and catastrophic breaching of the paleodivide immediately before deep lacustrine inundation of both valleys. Exposures in both valleys reveal a substantial erosional unconformity that records drainage of the lake and predates the arrival of sediment of the through-going Colorado River. Subsequent river aggradation culminated in the Pliocene between 4.1 and 3.3 Ma. The stratigraphic associations and timing of this drainage transition are consistent with geochemical evidence linking lacustrine conditions to the early Colorado River, the timings of drainage integration and canyon incision on the Colorado Plateau, the arrival of Colorado River sand at its terminus in the Salton Trough, and a downstream-directed mode of river integration common in areas of crustal extension.
Khephren Pyramid. Microfacies of the wackestone levels of the substratum, i... Available to Purchase
Response of the Truckee River to lowering base level at Pyramid Lake, Nevada, based on historical air photos and LiDAR data Open Access
Late Pleistocene and Holocene Paleoearthquake Activity of the Olinghouse Fault Zone, Nevada Available to Purchase
Mechanisms of slope failure on Pyramid Mountain, a subglacial volcano in Wells Gray Provincial Park, British Columbia Available to Purchase
Stratigraphic and provenance variations in the early evolution of the Magallanes-Austral foreland basin: Implications for the role of longitudinal versus transverse sediment dispersal during arc-continent collision Available to Purchase
Geological and topographical study of the original hills at the base of Fourth Dynasty Egyptian monuments of the Memphite plateau Available to Purchase
A river is born: Highlights of the geologic evolution of the Colorado River extensional corridor and its river: A field guide honoring the life and legacy of Warren Hamilton Available to Purchase
ABSTRACT The Colorado River extensional corridor, which stretched by a factor of 2 in the Miocene, left a series of lowland basins and intervening bedrock ranges that, at the dawn of the Pliocene, were flooded by Colorado River water newly diverted from the Colorado Plateau through Grand Canyon. This water and subsequent sediment gave birth, through a series of overflowing lakes, to an integrated Colorado River flowing to the newly opened Gulf of California. Topock Gorge, which the river now follows between the Chemehuevi and Mohave Mountains, is a major focus of this field guide, as it very nicely exposes structural, stratigraphic, and magmatic aspects of the Miocene extensional corridor, a core complex, and detachment faults as well as a pre-Cenozoic batholith. Topock Gorge also is the inferred site of a paleodivide between early Pliocene basins of newly arrived Colorado River water. Overspilling of its upstream lake breached the divide and led the river southward. The Bouse Formation in this and other basins records the pre–river integration water bodies. Younger riverlaid deposits including the Bullhead Alluvium (Pliocene) and the Chemehuevi Formation (Pleistocene) record subsequent evolution of the Colorado River through a succession of aggradational and re-incision stages. Their stratigraphic record provides evidence of local basin deepening after river inception, but little deformation on a regional scale of the river valley in the last 4 m.y. except in the Lake Mead area. There, faults interrupt both the paleoriver grade and incision rates, and are interpreted to record 100’s of m of true uplift of the Colorado Plateau. Warren Hamilton’s insightful work beginning in the 1950s helped set the stage for interpretation of Mesozoic orogeny and Cenozoic extension in this region, as well as the record of the Bouse Formation.