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Format
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Publisher
Section
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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East Africa
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Kenya
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Lake Magadi (1)
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Lake Natron (1)
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Lake Turkana (1)
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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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Southern Africa
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South Africa
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Cape Province region (1)
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Alpine Fault (1)
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Antelope Valley (2)
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Asia
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Arabian Peninsula (1)
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Far East
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Middle East
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Bear Valley (1)
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Canada
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Maritime Provinces
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New Brunswick (2)
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Western Canada
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Cascade Range (4)
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Commonwealth of Independent States
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Cook Inlet (1)
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Europe
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Mexico
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North America
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Appalachians (1)
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Southwestern U.S. (2)
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Truckee River (6)
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elements, isotopes
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hydrogen
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incompatible elements (1)
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isotopes
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Ar-40/Ar-39 (1)
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Be-10 (1)
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C-14 (6)
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Pb-206/Pb-204 (3)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (1)
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U-238/U-234 (1)
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stable isotopes
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Ar-40 (1)
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Ar-40/Ar-39 (1)
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C-13/C-12 (3)
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D/H (2)
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deuterium (1)
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Nd-144/Nd-143 (4)
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O-17/O-16 (1)
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O-18 (1)
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O-18/O-16 (10)
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Pb-206/Pb-204 (3)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (1)
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Sr-87/Sr-86 (5)
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metals
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actinides
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uranium
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U-238/U-234 (1)
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alkaline earth metals
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beryllium
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Be-10 (1)
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calcium
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Sr/Ca (1)
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strontium
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Sr/Ca (1)
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Sr-87/Sr-86 (5)
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lead
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Pb-206/Pb-204 (3)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (1)
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precious metals (1)
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rare earths
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neodymium
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Nd-144/Nd-143 (4)
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noble gases
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argon
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Ar-40 (1)
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Ar-40/Ar-39 (1)
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oxygen
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O-17/O-16 (1)
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O-18/O-16 (10)
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fossils
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Chordata
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Vertebrata
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Pisces (1)
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Tetrapoda
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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
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Carnivora
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Fissipeda
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Canidae (1)
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Invertebrata
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Arthropoda
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Mandibulata
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Crustacea
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microfossils (3)
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Plantae
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geochronology methods
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Ar/Ar (11)
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geologic age
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Cenozoic
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Quaternary
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Pleistocene
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Lake Lahontan (3)
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upper Pleistocene
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Wisconsinan
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lower Wisconsinan (1)
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upper Quaternary (1)
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Tertiary
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Asmari Formation (1)
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Neogene
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Bidahochi Formation (1)
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Hemphillian (1)
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Miocene
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lower Miocene (1)
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middle Miocene (1)
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upper Miocene (2)
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Pliocene
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lower Pliocene (1)
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upper Pliocene (1)
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Paleogene
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Eocene (3)
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Oligocene (1)
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upper Cenozoic (2)
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Lake Bonneville (2)
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Mesozoic
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Cretaceous
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Upper Cretaceous
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Tuolumne Intrusive Suite (1)
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Great Valley Sequence (1)
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Jurassic
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Paleozoic
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Permian
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Lower Permian (1)
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Middle Permian (1)
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Wellington Formation (1)
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igneous rocks
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igneous rocks
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plutonic rocks
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diorites
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quartz diorites (1)
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granites
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aplite (1)
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granodiorites (1)
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ultramafics
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pyroxenite (1)
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volcanic rocks
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andesites (3)
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basalts
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alkali basalts
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trachybasalts (1)
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dacites (1)
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pyroclastics
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ash-flow tuff (1)
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ignimbrite (2)
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tuff (2)
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rhyolites (3)
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metamorphic rocks
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framework silicates
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orthosilicates
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zircon group
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sheet silicates
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clay minerals
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kaolinite (1)
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Primary terms
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absolute age (15)
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Africa
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East Africa
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Kenya
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Lake Magadi (1)
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Lake Natron (1)
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Lake Turkana (1)
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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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Southern Africa
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South Africa
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Cape Province region (1)
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Asia
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Arabian Peninsula (1)
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Far East
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Japan (2)
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Indian Peninsula
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India
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Maharashtra India (1)
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Middle East
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Iran (1)
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Iraq (1)
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Turkey
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Zagros (1)
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Atlantic Ocean (1)
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Atlantic Ocean Islands
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Azores (1)
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atmosphere (1)
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Australasia
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biogeography (1)
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Canada
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Eastern Canada
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Maritime Provinces
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New Brunswick (2)
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Western Canada
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Alberta (1)
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British Columbia
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Vancouver Island (1)
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carbon
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C-13/C-12 (3)
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C-14 (6)
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catalogs (4)
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Cenozoic
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Blancan (1)
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Quaternary
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Holocene
-
upper Holocene (2)
-
-
Pleistocene
-
Illinoian (1)
-
Lake Lahontan (3)
-
upper Pleistocene
-
Wisconsinan
-
lower Wisconsinan (1)
-
-
-
-
upper Quaternary (1)
-
-
Tertiary
-
Arikaree Group (1)
-
Asmari Formation (1)
-
Neogene
-
Bidahochi Formation (1)
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Hemphillian (1)
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Miocene
-
Barstovian (1)
-
Barstow Formation (1)
-
Clarendonian (1)
-
lower Miocene (1)
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middle Miocene (1)
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upper Miocene (2)
-
-
Pliocene
-
lower Pliocene (1)
-
upper Pliocene (1)
-
-
-
Paleogene
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Eocene (3)
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Oligocene (1)
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-
-
upper Cenozoic (2)
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-
Chordata
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Vertebrata
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Pisces (1)
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Tetrapoda
-
Mammalia
-
Theria
-
Eutheria
-
Artiodactyla
-
Ruminantia
-
Tylopoda
-
Camelidae (1)
-
-
-
-
Carnivora
-
Fissipeda
-
Canidae (1)
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-
-
-
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-
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climate change (2)
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crust (8)
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data processing (7)
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Europe
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explosions (3)
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ground water (5)
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hydrogen
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D/H (2)
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deuterium (1)
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hydrogeology (2)
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hydrology (3)
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igneous rocks
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plutonic rocks
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diorites
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quartz diorites (1)
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-
granites
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aplite (1)
-
-
granodiorites (1)
-
ultramafics
-
pyroxenite (1)
-
-
-
volcanic rocks
-
andesites (3)
-
basalts
-
alkali basalts
-
trachybasalts (1)
-
-
-
dacites (1)
-
pyroclastics
-
ash-flow tuff (1)
-
ignimbrite (2)
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tuff (2)
-
-
rhyolites (3)
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trachyandesites (2)
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trachytes (1)
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-
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Indian Ocean
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Arabian Sea
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Persian Gulf (1)
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Red Sea (1)
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interplanetary space (1)
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intrusions (6)
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Invertebrata
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Arthropoda
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Mandibulata
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Crustacea
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Ostracoda (1)
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-
-
-
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isotopes
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radioactive isotopes
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Ar-40/Ar-39 (1)
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Be-10 (1)
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C-14 (6)
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Pb-206/Pb-204 (3)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (1)
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U-238/U-234 (1)
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stable isotopes
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Ar-40 (1)
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Ar-40/Ar-39 (1)
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C-13/C-12 (3)
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D/H (2)
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deuterium (1)
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Nd-144/Nd-143 (4)
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O-17/O-16 (1)
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O-18 (1)
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O-18/O-16 (10)
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Pb-206/Pb-204 (3)
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Sr-87/Sr-86 (5)
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lava (3)
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maps (3)
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Mesozoic
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Upper Cretaceous
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Great Valley Sequence (1)
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Jurassic
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metal ores
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silver ores (1)
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metals
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actinides
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uranium
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U-238/U-234 (1)
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alkaline earth metals
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beryllium
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Be-10 (1)
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calcium
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Sr/Ca (1)
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strontium
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Sr/Ca (1)
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Sr-87/Sr-86 (5)
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lead
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Pb-206/Pb-204 (3)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (1)
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precious metals (1)
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rare earths
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neodymium
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Nd-144/Nd-143 (4)
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metamorphic rocks
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metasomatic rocks
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propylite (1)
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metasomatism (4)
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Mexico
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Guanajuato Mexico (1)
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mineral deposits, genesis (3)
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noble gases
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argon
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Ar-40 (1)
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Ar-40/Ar-39 (1)
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North America
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Appalachians (1)
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Basin and Range Province
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Great Basin (9)
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Canadian Shield (1)
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Great Plains (1)
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Gulf Coastal Plain (1)
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North American Cordillera (2)
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Rocky Mountains
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U. S. Rocky Mountains
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San Juan Mountains (1)
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Uinta Mountains (1)
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Truckee California
Late Pleistocene and Holocene Faulting in the Western Truckee Basin North of Truckee, California Available to Purchase
Earthquake Interaction, Fault Structure, and Source Properties of a Small Sequence in 2017 near Truckee, California Available to Purchase
Discovering the Polaris Fault, Martis Creek Dam, Truckee, California Available to Purchase
LiDAR-Assisted Identification of an Active Fault near Truckee, California Available to Purchase
Source mechanism of the Truckee, California, earthquake of September 12 1966 Available to Purchase
Aftershocks of the Truckee, California, earthquake of September 12, 1966 Available to Purchase
Triggering of microearthquakes by earth tides, and other features of the Truckee, California, earthquake sequence of September, 1966 Available to Purchase
Nonantecedent Development of Truckee River Canyon, Northern Carson Range, Nevada and California Available to Purchase
Mean Velocities and Boulder Transport During Tahoe–Age Floods of the Truckee River, California–Nevada Available to Purchase
Pleistocene Volcanism and Deformation of the Truckee Area, North of Lake Tahoe, California Available to Purchase
The 12 September 1966, Truckee, California, earthquake (event 14). (a) See... Available to Purchase
Figure 4. Mean annual temperature record for Truckee, California, located ... Available to Purchase
Varied records of early Wisconsinan alpine glaciation in the western United States derived from weathering-rind thicknesses Available to Purchase
Weathering-rind thicknesses were measured on volcanic clasts in sequences of glacial deposits in seven mountain ranges in the western United States and in the Puget lowland. Because the rate of rind development decreases with time, ratios of rind thicknesses provide limits on corresponding age ratios. In all areas studied, deposits of late Wisconsinan age are obvious; deposits of late Illinoian age (ca. 140 ka) also seem to be present in each area, although independent evidence for their numerical age is circumstantial. The weathering-rind data indicate that deposits that have intermediate ages between these two are common, and ratios of rind thicknesses suggest an early Wisconsinan age (about 60 to 70 ka) for some of the intermediate deposits. Three of the seven studied alpine areas (McCall, Idaho; Yakima Valley, Washington; and Lassen Peak, California) appear to have early Wisconsinan drift beyond the extent of late Wisconsinan ice. In addition, Mount Rainier and the Puget lowland, Washington, have outwash terraces but no moraines of early Wisconsinan age. The sequences near West Yellowstone, Montana; Truckee, California; and in the southern Olympic Mountains have no recognized moraines or outwash of this age. Many of the areas have deposits that may be of middle Wisconsinan age. Differences in the relative extents of early Wisconsinan alpine glaciers are not expected from the marine oxygen-isotope record and are not explained by any simple trend in climatic variables or proximity to oceanic moisture sources. However, alpine glaciers could have responded more quickly and more variably than continental ice sheets to intense, short-lived climatic events, and they may have been influenced by local climatic or hypsometric effects. The relative sizes of early and late Wisconsinan alpine glaciers could also reflect differences between early and late Wisconsinan continental ice sheets and their regional climatic effects.
Earthquakes in Lassen Volcanic National Park, California Available to Purchase
Stratigraphy and structure of the Neogene Boca basin, northeastern California: Implications for late Cenozoic tectonic evolution of the northern Sierra Nevada Available to Purchase
The Neogene Boca basin, located 15 km northeast of Truckee, California, records the depositional and deformational history for the late Miocene–Pliocene period in this part of the northern Sierra Nevada. This study consists of fine-scale analysis of the well-exposed Neogene sedimentary rocks in an otherwise poorly exposed area of the northern Sierra Nevada. The Neogene Boca basin sedimentary section is >500 m thick and dips generally west to southwest. Four distinct lithologic intervals are deposited unconformably over lahars and intermediate lavas of the Miocene Kate Peak Formation. An ~180-m-thick section of conglomerate and conglomeratic litharenite represents a generally southwest directed fluvial system that existed from at least 4.4 Ma (interval I). This is overlain by and locally interfingered with a ca. 4.38 Ma basalt flow of Boca Hill. Above this basalt, an ~107-m-thick section of quartz wacke and siltstone deposits represents a deltaic system controlled by local volcanic topography from ca. 4.4 to 4.1 Ma (interval II). Conformably above interval II, an ~122-m-thick section of silty diatomite deposits with interbedded tephra and litharenite represents a lacustrine environment from ca. 4.1 to 2.7 Ma (interval III). Overlying the diatomite along a disrupted surface, a >91-m-thick section of medium- to coarse-grained litharenite and cobble conglomerate represents an abrupt change in depositional environment, to a west directed fluvial system (interval IV). Pliocene westward tilting and change in base level began during deposition of interval IV (ca. 2.7 Ma) and prior to eruption of the Boca Ridge Formation (ca. 2.61 Ma). Four orientations of large faults (>0.1 m displacement) are distributed evenly across the basin: (1) northeast to north-northeast striking sinistral faults; (2) northwest to north-northwest striking dextral faults; (3) west to west-northwest striking oblique-reverse faults; and (4) other fault orientations that have apparent motions not included in these categories. Strike-slip faulting is thought to have occurred during tilting of the Neogene section. The distributed conjugate strike-slip faults in the rocks of Boca basin accommodated east-southeast directed extension and south-southwest directed contraction. These new stratigraphic and structural data provide information on late Miocene–Pliocene deformation at the eastern edge of the Sierra Nevada. The Boca basin appears to have been an isolated basin controlled by volcanic topography. A late Miocene deformation event is not recorded in Boca basin; however, a Pliocene event is recorded in the termination of deposition and deformation of the section through tilting, incision, and distributed faulting. Pliocene deformational style is consistent with generally east-west extension associated with westward encroachment of the Basin and Range or northward migration of normal faults at Lake Tahoe. The structural data cannot disprove migration of Walker Lane deformation into the Sierra Nevada but merely show that this did not occur in the area occupied by the Neogene Boca basin. The Pliocene deformation event coincided with local eruption of high-potassium lavas and a regional base-level change, and it may represent rollback of the Juan de Fuca plate after ca. 3 Ma.