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Chuckanut Formation (1)
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upper Eocene
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Uinta Formation (1)
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Hanna Formation (1)
-
Oligocene (6)
-
Paleocene
-
lower Paleocene
-
Danian (1)
-
K-T boundary (2)
-
-
Ravenscrag Formation (1)
-
-
Paleocene-Eocene Thermal Maximum (1)
-
upper Paleogene (1)
-
White River Group (1)
-
-
-
-
Coal Measures (1)
-
Dalradian (1)
-
Lake Bonneville (1)
-
Laurentide ice sheet (1)
-
Mesozoic
-
Cretaceous
-
Colorado Group (5)
-
Lower Cretaceous
-
Albian (5)
-
Aptian
-
Shuaiba Formation (1)
-
-
Berriasian (1)
-
Blackleaf Formation (1)
-
Cadomin Formation (3)
-
Clearwater Formation (1)
-
Gething Formation (1)
-
Hauterivian (1)
-
Kootenay Formation (1)
-
Mannville Group (5)
-
Mowry Shale (1)
-
Neocomian (1)
-
-
Middle Cretaceous (2)
-
Natih Formation (1)
-
Queen Charlotte Group (1)
-
Upper Cretaceous
-
Bearpaw Formation (2)
-
Belle Fourche Shale (3)
-
Belly River Formation (3)
-
Campanian (1)
-
Cardium Formation (5)
-
Carlile Shale (3)
-
Cenomanian
-
Dunvegan Formation (2)
-
-
Coniacian (2)
-
Eagle Sandstone (3)
-
Frontier Formation (1)
-
Greenhorn Limestone (2)
-
Judith River Formation (2)
-
K-T boundary (2)
-
Maestrichtian (4)
-
Milk River Formation (4)
-
Niobrara Formation (2)
-
Pierre Shale (1)
-
Santonian (1)
-
Senonian (6)
-
Turonian (4)
-
Two Medicine Formation (1)
-
-
Viking Formation (6)
-
-
Glen Canyon Group (1)
-
Great Valley Sequence (2)
-
Jurassic
-
Fernie Formation (1)
-
Lower Jurassic
-
Hettangian (1)
-
Nordegg Member (2)
-
Pliensbachian (1)
-
Toarcian (1)
-
-
Middle Jurassic
-
Aalenian (1)
-
Bajocian
-
Yakoun Group (1)
-
-
Bathonian (1)
-
Callovian (1)
-
-
San Rafael Group (1)
-
Upper Jurassic
-
Bowser Lake Group (1)
-
Kimmeridgian (1)
-
Morrison Formation (1)
-
Oxfordian (1)
-
Swift Formation (1)
-
-
-
Kunga Group (2)
-
McHugh Complex (1)
-
Mist Mountain Formation (2)
-
Triassic
-
Charlie Lake Formation (5)
-
Liard Formation (2)
-
Lower Triassic
-
Griesbachian (1)
-
-
Middle Triassic
-
Doig Formation (8)
-
Ladinian (1)
-
-
Moenkopi Formation (1)
-
Montney Formation (7)
-
Upper Triassic
-
Baldonnel Formation (4)
-
Chinle Formation (1)
-
Norian (1)
-
Pardonet Formation (4)
-
-
-
-
Paleozoic
-
Cambrian
-
Lower Cambrian (1)
-
Middle Cambrian (5)
-
Mount Read Volcanics (1)
-
Upper Cambrian (2)
-
-
Carboniferous
-
Albert Formation (1)
-
Lower Carboniferous
-
Dinantian (3)
-
-
Mississippian
-
Lower Mississippian
-
Kekiktuk Conglomerate (1)
-
Kinderhookian
-
Banff Formation (1)
-
-
Lodgepole Formation (1)
-
Pocono Formation (1)
-
Tournaisian (1)
-
-
Macumber Formation (2)
-
Madison Group (2)
-
Upper Mississippian
-
Mauch Chunk Formation (1)
-
-
Windsor Group (2)
-
-
Pennsylvanian
-
Cumberland Group (1)
-
Middle Pennsylvanian
-
Moscovian (1)
-
-
Morien Group (1)
-
Pottsville Group (1)
-
-
Upper Carboniferous
-
Westphalian (1)
-
-
-
Deadwood Formation (1)
-
Devonian
-
Beaverhill Lake Group (3)
-
Keg River Formation (1)
-
Lower Devonian (2)
-
Middle Devonian
-
Elk Point Group (1)
-
Givetian (1)
-
Marcellus Shale (1)
-
Onondaga Limestone (1)
-
-
Millboro Shale (1)
-
Slave Point Formation (3)
-
Swan Hills Formation (2)
-
Upper Devonian
-
Famennian
-
Wabamun Group (4)
-
-
Frasnian
-
Leduc Formation (7)
-
-
Grosmont Formation (1)
-
Jefferson Group (1)
-
Kanayut Conglomerate (1)
-
Nisku Formation (2)
-
-
-
Exshaw Formation (4)
-
Horton Group (2)
-
Ishbel Group (1)
-
Lisburne Group (1)
-
lower Paleozoic (1)
-
middle Paleozoic (1)
-
New Albany Shale (1)
-
Ordovician
-
Eureka Quartzite (1)
-
Lower Ordovician (1)
-
Middle Ordovician
-
Black River Group (1)
-
-
Upper Ordovician
-
Caradocian (1)
-
-
-
Permian
-
Cutler Formation (4)
-
Lower Permian
-
Cisuralian
-
Artinskian (1)
-
Asselian (1)
-
Kungurian (1)
-
-
-
Ranger Canyon Formation (1)
-
Upper Permian (1)
-
-
Sauk Sequence (3)
-
Silurian (5)
-
Talladega Group (1)
-
Tippecanoe Sequence (1)
-
upper Paleozoic
-
Antrim Shale (1)
-
Bakken Formation (4)
-
Fountain Formation (1)
-
Kaskaskia Sequence (1)
-
Pictou Group (1)
-
-
Wissahickon Formation (1)
-
-
Phanerozoic (2)
-
Precambrian
-
Archean
-
Neoarchean (6)
-
-
North Shore Volcanics (1)
-
Purcell System (3)
-
Spuhler Peak Formation (1)
-
upper Precambrian
-
Proterozoic
-
Huronian (1)
-
Mesoproterozoic
-
Altyn Limestone (1)
-
Belt Supergroup (4)
-
Helikian (1)
-
Newland Limestone (1)
-
-
Miette Group (1)
-
Neoproterozoic
-
Hadrynian (2)
-
-
Paleoproterozoic (14)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
carbonatites (2)
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hypabyssal rocks (1)
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kimberlite (1)
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phoscorites (1)
-
plutonic rocks
-
diabase (1)
-
diorites
-
tonalite (1)
-
-
gabbros (1)
-
granites (5)
-
granodiorites (1)
-
pegmatite (1)
-
syenites
-
nepheline syenite (1)
-
-
ultramafics
-
peridotites (2)
-
-
-
volcanic rocks
-
andesites (4)
-
basalts
-
alkali basalts
-
alkali olivine basalt (1)
-
hawaiite (1)
-
-
flood basalts (4)
-
tholeiite (1)
-
tholeiitic basalt (1)
-
-
dacites (2)
-
glasses
-
obsidian (1)
-
-
pyroclastics
-
ignimbrite (3)
-
tuff (3)
-
welded tuff (1)
-
-
rhyodacites (1)
-
rhyolites (2)
-
-
-
-
metamorphic rocks
-
metamorphic rocks
-
amphibolites (1)
-
gneisses
-
orthogneiss (2)
-
paragneiss (2)
-
-
impactites
-
impact breccia (1)
-
-
marbles (1)
-
metaigneous rocks
-
metabasite (1)
-
metagabbro (1)
-
-
metasedimentary rocks
-
paragneiss (2)
-
-
metasomatic rocks
-
skarn (1)
-
-
migmatites
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anatexite (1)
-
-
mylonites (1)
-
quartzites (2)
-
schists
-
blueschist (1)
-
-
-
turbidite (4)
-
-
minerals
-
carbonates
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aragonite (2)
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bastnaesite (1)
-
calcite (4)
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dolomite (9)
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hydromagnesite (1)
-
-
halides
-
chlorides
-
halite (1)
-
-
fluorides
-
bastnaesite (1)
-
-
-
oxides
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rutile (1)
-
spinel (1)
-
-
phosphates
-
apatite (1)
-
monazite (3)
-
-
silicates
-
chain silicates
-
amphibole group
-
clinoamphibole
-
hornblende (1)
-
-
-
pyroxene group
-
clinopyroxene (2)
-
-
wollastonite group
-
wollastonite (1)
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
sanidine (1)
-
-
plagioclase
-
albite (1)
-
-
-
silica minerals
-
quartz (2)
-
-
sodalite group
-
sodalite (1)
-
-
-
orthosilicates
-
nesosilicates
-
garnet group (1)
-
olivine group
-
olivine (2)
-
-
phenakite group
-
phenakite (1)
-
-
sillimanite (1)
-
titanite group
-
titanite (1)
-
-
zircon group
-
zircon (24)
-
-
-
sorosilicates
-
bertrandite (1)
-
melilite group
-
melilite (1)
-
-
-
-
sheet silicates
-
clay minerals
-
kaolinite (1)
-
-
mica group
-
phlogopite (1)
-
-
-
-
sulfates
-
anhydrite (1)
-
-
sulfides
-
chalcopyrite (1)
-
copper sulfides (1)
-
pyrite (1)
-
-
-
Primary terms
-
absolute age (37)
-
Africa
-
East Africa
-
Kenya
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Lake Magadi (1)
-
-
Lake Natron (1)
-
-
East African Lakes
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Lake Magadi (1)
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Lake Natron (1)
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East African Rift (1)
-
-
Antarctica
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South Shetland Islands (1)
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Arctic Ocean
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Arctic region
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Asia
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Arabian Peninsula
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Oman (1)
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Buryat Russian Federation (1)
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Far East
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Burma (1)
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China
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Philippine Islands (1)
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Thailand (1)
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Middle East
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Iran
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-
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Siberia (1)
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-
-
Atlantic Ocean
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North Atlantic
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Hudson Bay (1)
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Atlantic Ocean Islands
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Atlantic region (1)
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Australasia
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Australia
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Tasmania Australia
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Hellyer Deposit (1)
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Victoria Australia
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New Zealand (4)
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bibliography (2)
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biogeography (3)
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biography (2)
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brines (5)
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Canada
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Arctic Archipelago (6)
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Eastern Canada
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Maritime Provinces
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New Brunswick
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Moncton Basin (2)
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Nova Scotia
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Cape Breton Island (2)
-
-
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Newfoundland and Labrador
-
Labrador (1)
-
Newfoundland
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Port au Port Peninsula (2)
-
-
-
Ontario
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Oak Ridges Moraine (1)
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Sudbury Ontario (1)
-
-
Ottawa Valley (1)
-
Quebec
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Montreal and Jesus Islands County Quebec
-
Montreal Quebec (1)
-
-
-
-
Elk Point Basin (1)
-
Hudson Bay (1)
-
Nunavut
-
Ellesmere Island (3)
-
Sverdrup Basin (3)
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
-
-
Queen Elizabeth Islands
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Ellesmere Island (3)
-
Parry Islands (1)
-
Sverdrup Basin (3)
-
Sverdrup Islands
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Axel Heiberg Island (1)
-
-
-
Stikinia Terrane (1)
-
Western Canada
-
Alberta
-
Alberta Basin (9)
-
Banff National Park (1)
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Jasper National Park (1)
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Medicine Hat Alberta (1)
-
Peace River Arch (17)
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Smoky River (1)
-
-
British Columbia
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Bowser Basin (1)
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Fraser River delta (1)
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Queen Charlotte Islands (2)
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Tulameen coal area (1)
-
Vancouver Island (1)
-
-
Canadian Cordillera (11)
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Canadian Rocky Mountains (13)
-
Crowsnest Pass (1)
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Manitoba (6)
-
Northwest Territories
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Mackenzie Delta (2)
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Richards Island (1)
-
-
Saskatchewan (13)
-
Selwyn Basin (2)
-
Yukon Territory (12)
-
-
Whitehorse Trough (1)
-
-
carbon
-
C-13/C-12 (9)
-
C-14 (5)
-
organic carbon (5)
-
-
Caribbean region
-
West Indies
-
Antilles
-
Lesser Antilles
-
Virgin Islands
-
U. S. Virgin Islands
-
Saint Croix (1)
-
-
-
-
-
-
-
Cenozoic
-
lower Cenozoic (1)
-
Quaternary
-
Holocene
-
upper Holocene (2)
-
-
Pleistocene
-
lower Pleistocene (1)
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middle Pleistocene (2)
-
upper Pleistocene
-
Wisconsinan
-
upper Wisconsinan (1)
-
-
-
-
upper Quaternary (2)
-
-
Tertiary
-
Neogene
-
Miocene
-
Columbia River Basalt Group (3)
-
upper Miocene (2)
-
-
Pliocene
-
lower Pliocene (1)
-
-
-
Paleogene
-
Duchesne River Formation (1)
-
Eocene
-
Absaroka Supergroup (1)
-
Bridger Formation (1)
-
Chuckanut Formation (1)
-
Green River Formation (1)
-
lower Eocene (1)
-
middle Eocene (1)
-
upper Eocene
-
Uinta Formation (1)
-
-
-
Hanna Formation (1)
-
Oligocene (6)
-
Paleocene
-
lower Paleocene
-
Danian (1)
-
K-T boundary (2)
-
-
Ravenscrag Formation (1)
-
-
Paleocene-Eocene Thermal Maximum (1)
-
upper Paleogene (1)
-
White River Group (1)
-
-
-
-
Central America
-
El Salvador (1)
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Honduras (1)
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Nicaragua (1)
-
-
Chordata
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Vertebrata
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Agnatha (1)
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Tetrapoda
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Mammalia (2)
-
Reptilia
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Diapsida
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Archosauria
-
dinosaurs
-
Ornithischia
-
Ornithopoda
-
Hadrosauridae (1)
-
-
-
-
-
-
-
-
-
-
clay mineralogy (1)
-
climate change (2)
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coal deposits (2)
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continental drift (2)
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continental slope (1)
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crust (26)
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data processing (5)
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deformation (26)
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diagenesis (21)
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diamond deposits (1)
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earthquakes (32)
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economic geology (31)
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energy sources (6)
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engineering geology (2)
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environmental geology (1)
-
Europe
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Alps
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Eastern Alps
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Dinaric Alps (1)
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-
-
Southern Europe
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Bosnia-Herzegovina
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Bosnia (1)
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Dinaric Alps (1)
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Italy
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Apennines
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Central Apennines (2)
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Marches Italy (1)
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Western Europe
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Belgium
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Brabant Massif (1)
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France
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Herault France
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Ireland (1)
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Scandinavia
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Norway (1)
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United Kingdom
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Great Britain
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England (1)
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Scotland
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Shetland Islands (1)
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Wales
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South Wales (1)
-
-
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explosions (1)
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faults (100)
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fluorspar deposits (2)
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folds (27)
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fractures (12)
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gems (1)
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geochemistry (28)
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geophysical methods (34)
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geosynclines (3)
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geothermal energy (1)
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glacial geology (3)
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Graptolithina (1)
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ground water (13)
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heat flow (2)
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hydrogen
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D/H (2)
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-
hydrogeology (3)
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hydrology (5)
-
igneous rocks
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carbonatites (2)
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hypabyssal rocks (1)
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kimberlite (1)
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phoscorites (1)
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plutonic rocks
-
diabase (1)
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diorites
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tonalite (1)
-
-
gabbros (1)
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granites (5)
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granodiorites (1)
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pegmatite (1)
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syenites
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nepheline syenite (1)
-
-
ultramafics
-
peridotites (2)
-
-
-
volcanic rocks
-
andesites (4)
-
basalts
-
alkali basalts
-
alkali olivine basalt (1)
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hawaiite (1)
-
-
flood basalts (4)
-
tholeiite (1)
-
tholeiitic basalt (1)
-
-
dacites (2)
-
glasses
-
obsidian (1)
-
-
pyroclastics
-
ignimbrite (3)
-
tuff (3)
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welded tuff (1)
-
-
rhyodacites (1)
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rhyolites (2)
-
-
-
inclusions
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fluid inclusions (3)
-
-
Indian Ocean
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Dampier Sub-basin (2)
-
-
intrusions (21)
-
Invertebrata
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Arthropoda
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Mandibulata
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Crustacea
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Branchiopoda (1)
-
Ostracoda
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Podocopida
-
Bairdiomorpha
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Bairdiacea
-
Bairdiidae
-
Bairdia (1)
-
-
-
-
-
-
-
-
Trilobitomorpha
-
Trilobita (2)
-
-
-
Brachiopoda (4)
-
Cnidaria
-
Anthozoa
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Zoantharia
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Rugosa (1)
-
-
-
-
Echinodermata
-
Crinozoa
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Crinoidea (1)
-
-
-
Mollusca
-
Bivalvia
-
Heterodonta
-
Hiatella
-
Hiatella arctica (1)
-
-
-
-
Cephalopoda (1)
-
-
Porifera
-
Stromatoporoidea (2)
-
-
Protista
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Foraminifera (7)
-
Radiolaria
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Osculosida
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Nassellina (1)
-
-
-
-
-
isostasy (1)
-
isotopes
-
radioactive isotopes
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C-14 (5)
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Pb-206/Pb-204 (1)
-
-
stable isotopes
-
C-13/C-12 (9)
-
D/H (2)
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Hf-177/Hf-176 (2)
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Nd-144/Nd-143 (2)
-
O-18/O-16 (12)
-
Os-188/Os-187 (1)
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Pb-206/Pb-204 (1)
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Pb-207/Pb-206 (1)
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S-34/S-32 (1)
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Sr-87/Sr-86 (8)
-
-
-
land subsidence (1)
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land use (1)
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lava (9)
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lineation (2)
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magmas (13)
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mantle (10)
-
maps (10)
-
Mesozoic
-
Cretaceous
-
Colorado Group (5)
-
Lower Cretaceous
-
Albian (5)
-
Aptian
-
Shuaiba Formation (1)
-
-
Berriasian (1)
-
Blackleaf Formation (1)
-
Cadomin Formation (3)
-
Clearwater Formation (1)
-
Gething Formation (1)
-
Hauterivian (1)
-
Kootenay Formation (1)
-
Mannville Group (5)
-
Mowry Shale (1)
-
Neocomian (1)
-
-
Middle Cretaceous (2)
-
Natih Formation (1)
-
Queen Charlotte Group (1)
-
Upper Cretaceous
-
Bearpaw Formation (2)
-
Belle Fourche Shale (3)
-
Belly River Formation (3)
-
Campanian (1)
-
Cardium Formation (5)
-
Carlile Shale (3)
-
Cenomanian
-
Dunvegan Formation (2)
-
-
Coniacian (2)
-
Eagle Sandstone (3)
-
Frontier Formation (1)
-
Greenhorn Limestone (2)
-
Judith River Formation (2)
-
K-T boundary (2)
-
Maestrichtian (4)
-
Milk River Formation (4)
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Niobrara Formation (2)
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Pierre Shale (1)
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Santonian (1)
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Senonian (6)
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Turonian (4)
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Two Medicine Formation (1)
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Viking Formation (6)
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Glen Canyon Group (1)
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Great Valley Sequence (2)
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Jurassic
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Fernie Formation (1)
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Lower Jurassic
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Hettangian (1)
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Nordegg Member (2)
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Pliensbachian (1)
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Toarcian (1)
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Middle Jurassic
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Aalenian (1)
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Bajocian
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Yakoun Group (1)
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Bathonian (1)
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Callovian (1)
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San Rafael Group (1)
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Upper Jurassic
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Bowser Lake Group (1)
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Kimmeridgian (1)
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Morrison Formation (1)
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Oxfordian (1)
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Swift Formation (1)
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-
-
Kunga Group (2)
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McHugh Complex (1)
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Mist Mountain Formation (2)
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Triassic
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Charlie Lake Formation (5)
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Liard Formation (2)
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Lower Triassic
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Griesbachian (1)
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Middle Triassic
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Doig Formation (8)
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Ladinian (1)
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-
Moenkopi Formation (1)
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Montney Formation (7)
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Upper Triassic
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Baldonnel Formation (4)
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Chinle Formation (1)
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Norian (1)
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Pardonet Formation (4)
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-
-
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metal ores
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base metals (1)
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beryllium ores (1)
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cobalt ores (1)
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copper ores (4)
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gold ores (3)
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lead ores (2)
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lead-zinc deposits (1)
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molybdenum ores (1)
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silver ores (3)
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uranium ores (2)
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zinc ores (2)
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metals
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actinides
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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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calcium (1)
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magnesium (2)
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strontium
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Sr-87/Sr-86 (8)
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-
-
hafnium
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Hf-177/Hf-176 (2)
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-
lead
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Pb-206/Pb-204 (1)
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Pb-207/Pb-206 (1)
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-
platinum group
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osmium
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Os-188/Os-187 (1)
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-
-
rare earths
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neodymium
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Nd-144/Nd-143 (2)
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-
-
-
metamorphic rocks
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amphibolites (1)
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gneisses
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orthogneiss (2)
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paragneiss (2)
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impactites
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impact breccia (1)
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marbles (1)
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metaigneous rocks
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metabasite (1)
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metagabbro (1)
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metasedimentary rocks
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paragneiss (2)
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metasomatic rocks
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skarn (1)
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migmatites
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anatexite (1)
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mylonites (1)
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quartzites (2)
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schists
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blueschist (1)
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metamorphism (10)
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mineral deposits, genesis (7)
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mineral exploration (6)
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mineral resources (1)
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nitrogen (1)
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noble gases
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argon (1)
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helium (1)
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North America
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Appalachian Basin (2)
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Appalachians
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Blue Ridge Province (1)
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Central Appalachians (1)
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Piedmont
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Inner Piedmont (1)
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Southern Appalachians (1)
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Valley and Ridge Province (1)
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Basin and Range Province
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Great Basin (4)
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Belt Basin (2)
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Canadian Shield
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Churchill Province
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Hearne Province (1)
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Rae Province (1)
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Snowbird tectonic zone (1)
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Flin Flon Belt (1)
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Superior Province (1)
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Coast plutonic complex (2)
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Denali Fault (1)
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Glacier National Park (2)
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Great Plains
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Northern Great Plains (2)
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Intermontane Belt (1)
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Keweenawan Rift (1)
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Michigan Basin (3)
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North American Cordillera
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Canadian Cordillera (11)
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North American Craton (2)
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Pedregosa Basin (1)
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Purcell Mountains (1)
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Rocky Mountain Trench (2)
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Rocky Mountains
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Canadian Rocky Mountains (13)
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Northern Rocky Mountains (3)
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Southern Rocky Mountains (1)
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U. S. Rocky Mountains
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Bitterroot Range (2)
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Bridger Range (1)
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San Juan Mountains (2)
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Sawatch Range (1)
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Spanish Peaks (1)
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Tobacco Root Mountains (2)
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Uinta Mountains (1)
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Wasatch Range (1)
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Wind River Range (1)
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-
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Rocky Mountains foreland (1)
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Sweetgrass Arch (2)
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Transcontinental Arch (1)
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Western Canada Sedimentary Basin (7)
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Western Interior (2)
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Williston Basin (7)
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Yukon-Tanana Terrane (1)
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Yukon-Tanana Upland (1)
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-
oil and gas fields (23)
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orogeny (12)
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oxygen
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O-18/O-16 (12)
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Pacific Coast (3)
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Pacific Ocean
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East Pacific
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Northeast Pacific
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Mendocino fracture zone (1)
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Queen Charlotte Basin (1)
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-
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North Pacific
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Northeast Pacific
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Mendocino fracture zone (1)
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Queen Charlotte Basin (1)
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-
-
-
paleoclimatology (11)
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paleoecology (8)
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paleogeography (46)
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paleomagnetism (12)
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Paleozoic
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Cambrian
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Lower Cambrian (1)
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Middle Cambrian (5)
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Mount Read Volcanics (1)
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Upper Cambrian (2)
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-
Carboniferous
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Albert Formation (1)
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Lower Carboniferous
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Dinantian (3)
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-
Mississippian
-
Lower Mississippian
-
Kekiktuk Conglomerate (1)
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Kinderhookian
-
Banff Formation (1)
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-
Lodgepole Formation (1)
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Pocono Formation (1)
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Tournaisian (1)
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-
Macumber Formation (2)
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Madison Group (2)
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Upper Mississippian
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Mauch Chunk Formation (1)
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-
Windsor Group (2)
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-
Pennsylvanian
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Cumberland Group (1)
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Middle Pennsylvanian
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Moscovian (1)
-
-
Morien Group (1)
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Pottsville Group (1)
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-
Upper Carboniferous
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Westphalian (1)
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-
-
Deadwood Formation (1)
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Devonian
-
Beaverhill Lake Group (3)
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Keg River Formation (1)
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Lower Devonian (2)
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Middle Devonian
-
Elk Point Group (1)
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Givetian (1)
-
Marcellus Shale (1)
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Onondaga Limestone (1)
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-
Millboro Shale (1)
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Slave Point Formation (3)
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Swan Hills Formation (2)
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Upper Devonian
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Famennian
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Wabamun Group (4)
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-
Frasnian
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Leduc Formation (7)
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-
Grosmont Formation (1)
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Jefferson Group (1)
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Kanayut Conglomerate (1)
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Nisku Formation (2)
-
-
-
Exshaw Formation (4)
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Horton Group (2)
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Ishbel Group (1)
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Lisburne Group (1)
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lower Paleozoic (1)
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middle Paleozoic (1)
-
New Albany Shale (1)
-
Ordovician
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Eureka Quartzite (1)
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Lower Ordovician (1)
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Middle Ordovician
-
Black River Group (1)
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-
Upper Ordovician
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Caradocian (1)
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-
-
Permian
-
Cutler Formation (4)
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Lower Permian
-
Cisuralian
-
Artinskian (1)
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Asselian (1)
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Kungurian (1)
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-
-
Ranger Canyon Formation (1)
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Upper Permian (1)
-
-
Sauk Sequence (3)
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Silurian (5)
-
Talladega Group (1)
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Tippecanoe Sequence (1)
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upper Paleozoic
-
Antrim Shale (1)
-
Bakken Formation (4)
-
Fountain Formation (1)
-
Kaskaskia Sequence (1)
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Pictou Group (1)
-
-
Wissahickon Formation (1)
-
-
palynomorphs
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acritarchs (2)
-
Chitinozoa (1)
-
Dinoflagellata (2)
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miospores
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pollen (1)
-
-
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paragenesis (5)
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permafrost (1)
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petroleum
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natural gas (31)
-
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petrology (6)
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Phanerozoic (2)
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phosphate deposits (1)
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Plantae
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algae
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Chlorophyta
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Charophyta (1)
-
-
-
-
plate tectonics (27)
-
pollution (3)
-
Precambrian
-
Archean
-
Neoarchean (6)
-
-
North Shore Volcanics (1)
-
Purcell System (3)
-
Spuhler Peak Formation (1)
-
upper Precambrian
-
Proterozoic
-
Huronian (1)
-
Mesoproterozoic
-
Altyn Limestone (1)
-
Belt Supergroup (4)
-
Helikian (1)
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Newland Limestone (1)
-
-
Miette Group (1)
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Neoproterozoic
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-
-
-
-