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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Admiralty Bay (2)
-
Africa
-
Central Africa
-
Angola (1)
-
Congo Democratic Republic (1)
-
-
East Africa
-
Kenya (1)
-
Malawi (1)
-
Mozambique (1)
-
Tanzania (1)
-
-
East African Rift (1)
-
Madagascar
-
Mahajanga Basin (1)
-
-
Mozambique Belt (1)
-
North Africa
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
-
-
Egypt
-
Dakhla Oasis (1)
-
-
Morocco
-
Moroccan Atlas Mountains
-
Anti-Atlas (1)
-
-
-
-
Southern Africa
-
Kaapvaal Craton (1)
-
Karoo Basin (1)
-
Namibia (1)
-
South Africa (4)
-
Zimbabwe (1)
-
-
West Africa
-
Ghana (1)
-
Ivory Coast (1)
-
-
-
Alexander Terrane (1)
-
Alpine Fault (1)
-
Altiplano (2)
-
Antarctica
-
Antarctic ice sheet (2)
-
Antarctic Peninsula (7)
-
Anvers Island (1)
-
East Antarctica (2)
-
James Ross Island (4)
-
Queen Maud Land
-
Lutzow-Holm Bay (1)
-
-
Ross Ice Shelf
-
McMurdo Ice Shelf (1)
-
-
Ross Island (1)
-
South Orkney Islands (1)
-
South Shetland Islands
-
Deception Island (2)
-
King George Island (5)
-
-
Victoria Land
-
McMurdo dry valleys (2)
-
-
West Antarctica (2)
-
-
Arctic Ocean
-
Beaufort Sea (2)
-
Nares Strait (1)
-
Norwegian Sea (2)
-
-
Arctic region
-
Greenland
-
Igaliku Complex (1)
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Ilimaussaq (1)
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South Greenland (1)
-
-
Svalbard
-
Spitsbergen
-
Spitsbergen Island (2)
-
-
-
-
Asia
-
Altai Mountains
-
Gorny Altai (1)
-
-
Altai Russian Federation
-
Gorny Altai (1)
-
-
Arabian Peninsula
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Oman (2)
-
-
Central Asia (1)
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Far East
-
Borneo
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Kalimantan Indonesia (1)
-
-
Burma (1)
-
China
-
Gansu China (1)
-
Hong Kong (1)
-
Hunan China (1)
-
North China Platform (1)
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Sichuan Basin (1)
-
Sichuan China (1)
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Xinjiang China
-
Tarim Basin (2)
-
-
Xizang China (2)
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Yangtze Platform (1)
-
-
Indonesia
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Irian Jaya Indonesia (1)
-
Kalimantan Indonesia (1)
-
-
Japan
-
Kyushu
-
Nagasaki Japan (1)
-
-
Ryukyu Islands
-
Okinawa (1)
-
-
-
Malaysia (2)
-
Mongolia (1)
-
Thailand (1)
-
-
Himalayas (2)
-
Indian Peninsula
-
India
-
Bengal Islands
-
Andaman Islands (3)
-
Nicobar Islands (2)
-
-
Jharkhand India
-
Singhbhum India (1)
-
-
-
-
Indus-Yarlung Zangbo suture zone (1)
-
Middle East
-
Cyprus (1)
-
Dead Sea (1)
-
Dead Sea Rift (1)
-
Iran (2)
-
Israel
-
Negev (1)
-
-
Lebanon (1)
-
Turkey
-
Anatolia (1)
-
North Anatolian Fault (1)
-
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Zagros (2)
-
-
Sayan
-
Eastern Sayan (1)
-
-
Siberia (1)
-
Tien Shan (2)
-
Tuva Russian Federation
-
Sangilen Mountains (1)
-
-
Uzbekistan (1)
-
-
Atlantic Ocean
-
Equatorial Atlantic (2)
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Mid-Atlantic Ridge (2)
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North Atlantic
-
Bay of Fundy (2)
-
Blake Plateau (1)
-
Caribbean Sea (1)
-
Ceara Rise (1)
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Celtic Sea (1)
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English Channel (2)
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Faeroe-Shetland Basin (1)
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Flemish Cap (1)
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Frobisher Bay (1)
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Gulf of Saint Lawrence (5)
-
Hudson Strait (1)
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Irish Sea (2)
-
Jeanne d'Arc Basin (4)
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Labrador Sea (1)
-
North Sea
-
East Shetland Basin (1)
-
-
Northeast Atlantic
-
Porcupine Bank (1)
-
-
Northwest Atlantic
-
Hibernia Field (1)
-
-
Scotian Shelf (1)
-
-
South Atlantic (5)
-
-
Atlantic Ocean Islands
-
Ascension Island (1)
-
Azores (1)
-
Faeroe Islands (1)
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Falkland Islands (4)
-
South Georgia (2)
-
-
Atlantic region (4)
-
Australasia
-
Australia
-
Broken Hill Block (1)
-
Curnamona Province (1)
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Great Artesian Basin (1)
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New South Wales Australia
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Tamworth Australia (1)
-
-
Otway Basin (1)
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Queensland Australia
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Mount Isa Australia (1)
-
-
South Australia
-
Adelaide Australia (1)
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Fleurieu Peninsula (1)
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Kangaroo Island (2)
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Olary Domain (1)
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-
Tamworth Belt (1)
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Tasmania Australia (3)
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Victoria Australia
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Gippsland Basin (1)
-
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Western Australia
-
Pilbara Craton (1)
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Yilgarn Craton (1)
-
-
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New Zealand
-
Otago New Zealand (1)
-
Southland New Zealand
-
Fiordland (5)
-
-
Torlesse Terrane (1)
-
Westland New Zealand (1)
-
-
Tasman orogenic zone (1)
-
-
Avalon Zone (11)
-
Baffin Bay (2)
-
Banks Island (2)
-
Barrow Island (1)
-
Bay of Islands (1)
-
Bell Island (3)
-
Blue Mountains (4)
-
Cache Creek (1)
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Cache Creek Terrane (1)
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Caledonides (4)
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Canada
-
Arctic Archipelago (8)
-
Eastern Canada
-
Baffin Island (7)
-
Gander Zone (3)
-
Maritime Provinces
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New Brunswick
-
Gloucester County New Brunswick (1)
-
Restigouche County New Brunswick (3)
-
Saint George Batholith (1)
-
-
Nova Scotia
-
Annapolis County Nova Scotia (1)
-
Antigonish County Nova Scotia (2)
-
Cape Breton Island
-
Cape Breton County Nova Scotia (1)
-
-
Cobequid Highlands (2)
-
Cumberland County Nova Scotia
-
Joggins Fossil Cliffs (4)
-
-
Digby County Nova Scotia (1)
-
Halifax County Nova Scotia (1)
-
Hants County Nova Scotia (1)
-
Kings County Nova Scotia (1)
-
Lunenburg County Nova Scotia (1)
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Minas Basin (2)
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Queens County Nova Scotia (1)
-
Shelburne County Nova Scotia (1)
-
Yarmouth County Nova Scotia
-
Yarmouth Nova Scotia (1)
-
-
-
Prince Edward Island (1)
-
-
Meguma Terrane (10)
-
Newfoundland and Labrador
-
Labrador (3)
-
Newfoundland
-
Avalon Peninsula (7)
-
Baie Verte Peninsula (5)
-
Burin Peninsula (2)
-
Daniel's Harbour Newfoundland and Labrador (1)
-
Great Northern Peninsula (3)
-
Humber Arm Allochthon (1)
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Notre Dame Bay (2)
-
Port au Port Peninsula (18)
-
Saint John's Newfoundland and Labrador (1)
-
-
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Ontario
-
Cochrane District Ontario
-
Kidd Creek Mine (1)
-
Timmins Ontario (1)
-
-
Coldwell Complex (2)
-
Kenora District Ontario
-
Kenora Ontario (1)
-
-
Manitoulin District Ontario
-
Manitoulin Island (2)
-
-
Simcoe County Ontario (1)
-
-
Quebec
-
Anticosti Island (13)
-
Gaspe Peninsula (17)
-
Gaspe-Est County Quebec
-
Gaspe Quebec (1)
-
-
Saint Lawrence Estuary (1)
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Thetford Mines (2)
-
-
-
Mackenzie Mountains (1)
-
Nunavut
-
Baffin Island (7)
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Ellesmere Island (5)
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Sverdrup Basin (8)
-
Sverdrup Islands
-
Axel Heiberg Island (2)
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Ellef Ringnes Island (1)
-
-
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Queen Elizabeth Islands
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Ellesmere Island (5)
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Sverdrup Basin (8)
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Sverdrup Islands
-
Axel Heiberg Island (2)
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Ellef Ringnes Island (1)
-
-
-
Stikinia Terrane (1)
-
Ungava (2)
-
Western Canada
-
Alberta (4)
-
British Columbia
-
Fraser River delta (1)
-
Mount Meager (1)
-
Queen Charlotte Islands (1)
-
Vancouver British Columbia (1)
-
Vancouver Island (2)
-
-
Canadian Cordillera (2)
-
Canadian Rocky Mountains (1)
-
Manitoba (3)
-
Northwest Territories (10)
-
Saskatchewan
-
Weyburn Field (1)
-
-
Yukon Territory (4)
-
-
-
Canterbury Basin (1)
-
Caribbean region
-
West Indies
-
Antilles
-
Lesser Antilles
-
Barbados (3)
-
Virgin Islands
-
U. S. Virgin Islands
-
Saint Croix (1)
-
-
-
-
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Bahamas (2)
-
-
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Cascade Range (7)
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Cascadia subduction zone (3)
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Central America
-
Costa Rica (1)
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Panama
-
Darien (1)
-
-
-
Central Basin (1)
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Central European Basin (1)
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Central Graben (1)
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Chalk Aquifer (1)
-
Chicxulub Crater (1)
-
Coast Belt (1)
-
Coast Mountains (2)
-
Coast Ranges (5)
-
Colorado River (5)
-
Columbia River (2)
-
Commonwealth of Independent States
-
Russian Federation
-
Altai Russian Federation
-
Gorny Altai (1)
-
-
Murmansk Russian Federation
-
Khibiny Mountains (1)
-
Lovozero Massif (1)
-
-
Pechora Basin (1)
-
Tuva Russian Federation
-
Sangilen Mountains (1)
-
-
Voronezh Russian Federation
-
Voronezh Anteclise (1)
-
-
-
Uzbekistan (1)
-
-
Cook Inlet (2)
-
Corpus Christi Bay (1)
-
Crater Lake (3)
-
Cumberland Basin (6)
-
Cumberland Peninsula (1)
-
Davis Strait (1)
-
Denmark Strait (1)
-
Deschutes River (1)
-
Dunnage Zone (8)
-
East Pacific Ocean Islands
-
Galapagos Islands (2)
-
Hawaii (1)
-
-
Eucla Basin (2)
-
Europe
-
Adriatic region (3)
-
Alps
-
Piedmont Alps
-
Dora Maira Massif (1)
-
-
Swiss Alps (1)
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Western Alps
-
Cottian Alps
-
Dora Maira Massif (1)
-
-
-
-
Baltic region
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Estonia
-
Saaremaa (1)
-
-
-
Central Europe
-
Czech Republic (1)
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Sudeten Mountains (1)
-
Switzerland
-
Swiss Alps (1)
-
-
-
Jura Mountains (1)
-
Lake Geneva (1)
-
Murmansk Russian Federation
-
Khibiny Mountains (1)
-
Lovozero Massif (1)
-
-
Pechora Basin (1)
-
Pyrenees (1)
-
Southern Europe
-
Croatia (4)
-
Dalmatia (2)
-
Greece
-
Pindus Mountains (1)
-
-
Iberian Peninsula
-
Portugal (1)
-
Spain
-
Valencia region
-
Alicante Spain
-
Alcoy Spain (1)
-
-
-
-
-
Italy
-
Apennines
-
Northern Apennines (2)
-
-
Apulia Italy
-
Lecce Italy (1)
-
-
Emilia-Romagna Italy (1)
-
Piemonte Italy
-
Dora Maira Massif (1)
-
-
Sardinia Italy (2)
-
Sicily Italy
-
Lipari Islands (1)
-
-
-
Malta (1)
-
-
Variscides (2)
-
Voronezh Russian Federation
-
Voronezh Anteclise (1)
-
-
Western Europe
-
Belgium
-
Brabant Massif (1)
-
-
Cottian Alps
-
Dora Maira Massif (1)
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-
France
-
Central Massif (1)
-
Corsica (2)
-
Hautes-Pyrenees France
-
Lourdes France (1)
-
-
Manche France (1)
-
Pas-de-Calais France (1)
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Provence (1)
-
-
Ireland
-
Clare Ireland (1)
-
Cork Ireland (1)
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Donegal Ireland (1)
-
Kerry Ireland (1)
-
Sligo Ireland (1)
-
Wexford Ireland (1)
-
-
Netherlands (1)
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Scandinavia
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Denmark (1)
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Norway
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Finnmark Norway
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Varanger Fjord (1)
-
-
Northern Norway (1)
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Solund Islands (1)
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-
Sweden (3)
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Western Gneiss region (1)
-
-
United Kingdom
-
Great Britain
-
Bristol Channel (1)
-
England
-
Alston Block (1)
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Bedfordshire England (1)
-
Cornubian Batholith (4)
-
Cornwall England
-
Land's End (1)
-
-
Cumbria England (3)
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Derbyshire England (1)
-
Devon England
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Dartmoor (1)
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Meldon Aplite (1)
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Torquay England (1)
-
-
Dorset England (5)
-
Dudley England (1)
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Durham England (1)
-
Essex England (1)
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Gloucestershire England (1)
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Hampshire Basin (1)
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Hampshire England (1)
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Isle of Wight England (2)
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Kent England (1)
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Leicestershire England (1)
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London Basin (3)
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London England (1)
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Northamptonshire England (1)
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Northumberland England (1)
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Somerset England (1)
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South-West England (1)
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Wessex Basin (3)
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Wiltshire England (1)
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Yorkshire England
-
North Yorkshire England (1)
-
-
-
Scotland
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Edinburgh Scotland (1)
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Galloway Scotland (1)
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Great Glen Fault (1)
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Hebrides
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Inner Hebrides
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Rhum (1)
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-
-
Highland region Scotland
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Inverness-shire Scotland
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Rhum (1)
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-
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Midlothian Scotland (1)
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Moray Firth (2)
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Scottish Highlands
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Grampian Highlands (1)
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-
-
Wales
-
Gwynedd Wales
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Arenig (1)
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-
Merionethshire Wales
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Arenig (1)
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-
South Wales (2)
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-
-
Northern Ireland
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Belfast Northern Ireland (1)
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-
-
-
-
Grand Banks (7)
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Grand Canyon (2)
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Green River (1)
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Guadalupe Mountains (1)
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Hikurangi Margin (1)
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Hudson Bay Basin (1)
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Hunter Valley (1)
-
Indian Ocean
-
Timor Sea (1)
-
-
Indian Ocean Islands
-
Madagascar
-
Mahajanga Basin (1)
-
-
-
International Ocean Discovery Program
-
Expedition 352
-
IODP Site U1439 (1)
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IODP Site U1440 (1)
-
IODP Site U1441 (1)
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IODP Site U1442 (1)
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-
-
Jack Hills (1)
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King Island (1)
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Lake District (1)
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Lake Mead (4)
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Lusitanian Basin (1)
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Mackenzie River (2)
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Malay Archipelago
-
Borneo
-
Kalimantan Indonesia (1)
-
-
New Guinea
-
Irian Jaya Indonesia (1)
-
-
-
Maritimes Basin (11)
-
Mediterranean region (1)
-
Mediterranean Sea
-
East Mediterranean
-
Adriatic Sea (2)
-
-
West Mediterranean
-
Tyrrhenian Sea (1)
-
-
-
Melville Island (2)
-
Mexico
-
Sonora Mexico (2)
-
-
Midland Valley (1)
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Midlands (1)
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Mirror Lake (1)
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Mohawk Valley (1)
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Murray Basin (1)
-
North America
-
Appalachian Basin (5)
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Appalachians
-
Appalachian Plateau (3)
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Blue Ridge Mountains (1)
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Blue Ridge Province (4)
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Central Appalachians (5)
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Cumberland Plateau (1)
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Great Appalachian Valley (1)
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Northern Appalachians (17)
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Piedmont
-
Inner Piedmont (1)
-
-
Southern Appalachians (2)
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Valley and Ridge Province (10)
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-
Basin and Range Province
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Great Basin (12)
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-
Canadian Shield
-
Churchill Province
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Cape Smith fold belt (1)
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Hearne Province (1)
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Rae Province (1)
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-
Grenville Province
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Central Gneiss Belt (1)
-
-
Slave Province (1)
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Superior Province
-
Abitibi Belt (1)
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Quetico Belt (1)
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Swayze greenstone belt (1)
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Wabigoon Belt (1)
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Wawa Belt (1)
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-
-
Coast plutonic complex (1)
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Great Plains
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Northern Great Plains (1)
-
-
Gulf Coastal Plain (4)
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Humber Zone (7)
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Intermontane Belt (1)
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Keweenawan Rift (3)
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Lake Superior region (1)
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North American Cordillera
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Canadian Cordillera (2)
-
-
Peninsular Ranges Batholith (1)
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Rocky Mountains
-
Canadian Rocky Mountains (1)
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U. S. Rocky Mountains
-
Medicine Bow Mountains (1)
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Wind River Range (1)
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-
-
Sonoran Desert (1)
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Western Interior
-
Western Interior Seaway (1)
-
-
Yukon-Tanana Terrane (1)
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-
North Island (1)
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North Sea region (2)
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North West Shelf (1)
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Oceania
-
Micronesia
-
Mariana Islands (1)
-
-
Polynesia
-
Hawaii (1)
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-
-
Owens Valley (3)
-
Pacific Coast (3)
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific
-
Bristol Bay (1)
-
Gulf of California (1)
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Mendocino fracture zone (2)
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Queen Charlotte Basin (1)
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-
Southeast Pacific
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Tonga Trench (1)
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-
-
North Pacific
-
Bering Sea
-
Bristol Bay (1)
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-
Northeast Pacific
-
Bristol Bay (1)
-
Gulf of California (1)
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Mendocino fracture zone (2)
-
Queen Charlotte Basin (1)
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-
Northwest Pacific
-
Izu-Bonin Arc (3)
-
Mariana Trench (1)
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-
-
South Pacific
-
Chatham Rise (1)
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Southeast Pacific
-
Tonga Trench (1)
-
-
Southwest Pacific
-
Campbell Plateau (1)
-
Great South Basin (2)
-
-
-
West Pacific
-
Northwest Pacific
-
Izu-Bonin Arc (3)
-
Mariana Trench (1)
-
-
Southwest Pacific
-
Campbell Plateau (1)
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Great South Basin (2)
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-
-
-
Peninsular Ranges (1)
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Point Arena (1)
-
polar regions (1)
-
Pulaski Fault (1)
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Rangely Field (1)
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Raton Basin (1)
-
Roberts Mountains (1)
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Round Mountain (1)
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Russian Platform (1)
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Salt Creek (1)
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Saltville Fault (1)
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San Andreas Fault (13)
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San Jacinto Fault (1)
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San Joaquin Basin (1)
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San Juan Basin (2)
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Santa Barbara Basin (1)
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Santa Catalina Island (1)
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Santa Cruz Mountains (3)
-
Scotia Sea (1)
-
Scotia Sea Islands
-
South Georgia (2)
-
South Orkney Islands (1)
-
South Shetland Islands
-
Deception Island (2)
-
King George Island (5)
-
-
-
Seymour Island (1)
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Sphenopsida
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Equisetales
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Calamites (2)
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Spermatophyta
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Angiospermae
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Dicotyledoneae
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Nothofagus (1)
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Gymnospermae
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Coniferae (1)
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Coniferales
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Cupressaceae (1)
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Taxodium (1)
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Cordaitales (1)
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Pteridospermae (3)
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problematic fossils
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problematic microfossils (1)
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Pterobranchia (4)
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tracks (2)
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geochronology methods
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(U-Th)/He (3)
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Ar/Ar (30)
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exposure age (2)
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fission-track dating (9)
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He/He (1)
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K/Ar (6)
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Lu/Hf (1)
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paleomagnetism (13)
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Pb/Pb (2)
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Rb/Sr (3)
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Re/Os (1)
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Sm/Nd (6)
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Sr/Sr (1)
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tephrochronology (2)
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Th/U (3)
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thermochronology (6)
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tree rings (3)
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U/Pb (58)
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U/Th/Pb (3)
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geologic age
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Anthropocene (1)
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Cenozoic
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Bronze Age (1)
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middle Cenozoic (1)
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Quaternary
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Holocene
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lower Holocene (1)
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middle Holocene (1)
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upper Holocene (8)
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Pleistocene
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Bishop Tuff (2)
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middle Pleistocene (1)
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upper Pleistocene
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Devensian (1)
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Weichselian
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upper Weichselian
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Younger Dryas (1)
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upper Quaternary (4)
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Stone Age
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Paleolithic
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Acheulian (1)
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Tertiary
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Arikareean (1)
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John Day Formation (4)
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lower Tertiary (1)
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middle Tertiary (1)
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Neogene
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Capistrano Formation (1)
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Miocene
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Calvert Formation (1)
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Columbia River Basalt Group (3)
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Grande Ronde Basalt (1)
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lower Miocene (6)
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middle Miocene
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Choptank Formation (1)
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Paintbrush Tuff (1)
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Saddle Mountains Basalt (1)
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Saint Marys Formation (1)
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upper Miocene
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Eastover Formation (1)
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Wanapum Basalt (1)
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Pliocene (11)
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Paleogene
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Eocene
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Chuckanut Formation (1)
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Clarno Formation (2)
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lower Eocene (1)
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middle Eocene
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Tyee Formation (2)
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upper Eocene (2)
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Flagstaff Formation (1)
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lower Paleogene (1)
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Oligocene
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lower Oligocene (1)
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upper Oligocene (3)
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Paleocene
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lower Paleocene
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Danian (2)
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K-T boundary (1)
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Nanafalia Formation (1)
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upper Paleocene (1)
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White River Group (1)
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Sarmiento Formation (1)
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Coal Measures (1)
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Dalradian (1)
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Laurentide ice sheet (3)
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Mesozoic
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Condrey Mountain Schist (1)
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Cretaceous
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Comanchean
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Glen Rose Formation (1)
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Lower Cretaceous
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Albian (3)
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Aptian (2)
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Barremian (2)
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Berriasian (2)
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Christopher Formation (1)
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Gault Clay (1)
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Glen Rose Formation (1)
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Hauterivian (1)
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Isachsen Formation (1)
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Purbeckian (1)
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Valanginian (3)
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Wealden (5)
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Lower Greensand (2)
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Middle Cretaceous (1)
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Upper Cretaceous
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Belly River Formation (2)
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Blackhawk Formation (1)
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Campanian
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upper Campanian (1)
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Castlegate Sandstone (1)
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Cenomanian
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upper Cenomanian (1)
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Dawson Canyon Formation (1)
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Fruitland Formation (1)
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Greenhorn Limestone (1)
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Kanguk Formation (1)
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K-T boundary (1)
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Lewis Shale (1)
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Maestrichtian (4)
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Pierre Shale (1)
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Rosario Formation (1)
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Santonian (1)
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Senonian (4)
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Straight Cliffs Formation (2)
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Turonian
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lower Turonian (1)
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Williams Fork Formation (1)
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Wyandot Formation (1)
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Franciscan Complex (6)
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Jurassic
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Aztec Sandstone (1)
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Carmel Formation (1)
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Coast Range Ophiolite (1)
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Lower Jurassic
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Hettangian (1)
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lower Liassic (1)
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middle Liassic (1)
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Pliensbachian (1)
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Portland Formation (1)
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Toarcian (2)
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upper Liassic (1)
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Middle Jurassic
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Aalenian (1)
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Bajocian (2)
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Bathonian
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Great Oolite Group (2)
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Callovian (2)
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Oxford Clay (2)
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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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Cotton Valley Group (1)
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Entrada Sandstone (1)
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Galice Formation (2)
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Josephine Ophiolite (1)
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Kimmeridge Clay (1)
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Kimmeridgian
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upper Kimmeridgian (1)
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Morrison Formation (2)
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Oxfordian
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middle Oxfordian (1)
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Portlandian (1)
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Salt Wash Sandstone Member (1)
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Tithonian (1)
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Kayenta Formation (1)
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Kunga Group (1)
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Navajo Sandstone (1)
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Newark Supergroup (1)
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Orocopia Schist (1)
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Triassic
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Liard Formation (1)
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Lower Triassic
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Permian-Triassic boundary (1)
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Moenkopi Formation (1)
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Sherwood Sandstone (2)
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Upper Triassic
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Carnian (1)
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Chinle Formation (1)
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Norian (2)
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Rhaetian (1)
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upper Mesozoic (1)
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Paleozoic
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Cambrian
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Acadian (1)
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Conasauga Group (1)
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Lower Cambrian
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Rome Formation (2)
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Terreneuvian (1)
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Middle Cambrian
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Bright Angel Shale (1)
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Wheeler Formation (1)
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Tapeats Sandstone (1)
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Upper Cambrian
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Furongian
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Paibian (1)
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Goldenville Formation (1)
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Potsdam Sandstone (1)
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Steptoean (2)
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Carboniferous
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Jackfork Group (1)
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Lower Carboniferous
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Asbian (1)
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Dinantian (5)
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Mabou Group (3)
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Mississippian
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Lower Mississippian
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Osagian
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Burlington Limestone (1)
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Tournaisian (1)
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Macumber Formation (1)
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Middle Mississippian
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Visean
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Great Scar Limestone (1)
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Redwall Limestone (1)
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Upper Mississippian
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Fayetteville Formation (1)
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Windsor Group (5)
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Namurian (2)
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Pennsylvanian
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Cumberland Group (4)
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Joggins Formation (7)
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Lower Pennsylvanian (2)
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Mary Lee Coal (1)
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Middle Pennsylvanian
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Allegheny Group (1)
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Moscovian (1)
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Morien Group (3)
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Pottsville Group (1)
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Upper Pennsylvanian
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Gzhelian (1)
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Kasimovian (1)
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Upper Carboniferous
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Millstone Grit (1)
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Stephanian (2)
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Westphalian (2)
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Chattanooga Shale (1)
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Cow Head Group (5)
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Devonian
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Lower Devonian
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Emsian (4)
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Lochkovian (1)
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Oriskany Sandstone (2)
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York River Formation (2)
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Middle Devonian
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Eifelian (1)
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Marcellus Shale (2)
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Onondaga Limestone (1)
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Millboro Shale (1)
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Old Red Sandstone (1)
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Ramparts Formation (1)
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Upper Devonian
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Brallier Shale (2)
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Frasnian (1)
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Waterways Formation (1)
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Ellis Bay Formation (8)
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Helderberg Group (2)
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Horton Group (4)
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Keyser Limestone (1)
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Knox Group (2)
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lower Paleozoic
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Ashe Formation (1)
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Penobscot Formation (2)
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Matapedia Group (1)
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Merrimack Group (1)
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middle Paleozoic (1)
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Ordovician
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Buchans Group (2)
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Catoche Formation (1)
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Clays Ferry Formation (1)
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Lexington Limestone (2)
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Lower Ordovician
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Arenigian (2)
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Fillmore Formation (1)
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Floian (1)
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Ibexian (2)
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Saint George Group (8)
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Tremadocian
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Halifax Formation (1)
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Lushs Bight Group (1)
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Martinsburg Formation (1)
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Meguma Group (2)
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Middle Ordovician
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Bromide Formation (2)
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Chazyan (1)
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Cloridorme Formation (1)
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Dapingian (1)
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Darriwilian (7)
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Normanskill Formation (1)
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Platteville Formation (1)
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Table Head Group (1)
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Whiterockian (1)
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Upper Ordovician
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Ashgillian (5)
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Caradocian (2)
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Cincinnatian
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Maysvillian (1)
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Hirnantian (6)
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Katian (3)
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Red River Formation (1)
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Reedsville Formation (2)
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Sandbian (1)
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Trentonian (3)
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Valmy Formation (1)
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Viola Limestone (1)
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Wild Bight Group (1)
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Permian
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Guadalupian
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Brushy Canyon Formation (1)
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Capitanian (2)
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Cherry Canyon Formation (1)
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Roadian (1)
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Tansill Formation (1)
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Wordian (1)
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Lower Permian
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Cherry Canyon Formation (1)
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Cisuralian
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Artinskian (1)
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Kungurian (1)
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Middle Permian (1)
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Toroweap Formation (1)
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Upper Permian
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Lopingian
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Changhsingian (2)
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Wuchiapingian (1)
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Permian-Triassic boundary (1)
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Zechstein (2)
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Yates Formation (1)
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Silurian
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Lower Silurian
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