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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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North Africa
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Egypt
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Sinai Egypt (1)
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Asia
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Far East
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China
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Sichuan Basin (1)
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Indonesia (1)
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Himalayas (1)
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Middle East
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Turkey (1)
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Atlantic Ocean
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North Atlantic
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Caribbean Sea
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Cariaco Basin (1)
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Gulf of Mexico (2)
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Gulf of Saint Lawrence (1)
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North Sea
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Skagerrak (1)
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Scotian Shelf (1)
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Australasia
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Australia
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Victoria Australia (1)
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Avalon Zone (1)
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Beaufort-Mackenzie Basin (1)
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Canada
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Newfoundland and Labrador
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Ontario
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Western Canada
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Commonwealth of Independent States
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Russian Federation
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Urals
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Europe
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Germany (1)
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Southern Europe
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Romania (1)
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Western Europe
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Green River basin (4)
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Indian Ocean
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Arabian Sea
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Maverick Basin (1)
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Mediterranean Sea
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East Mediterranean
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Mexico
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Mohawk Valley (4)
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North America
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Appalachian Basin (342)
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Appalachians
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Appalachian Plateau (8)
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Blue Ridge Mountains (1)
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Blue Ridge Province (1)
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Catskill Mountains (1)
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Central Appalachians (12)
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Northern Appalachians (12)
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Piedmont
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Inner Piedmont (1)
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Southern Appalachians (3)
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Valley and Ridge Province (8)
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Canadian Shield
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Grenville Province (1)
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Champlain Valley (1)
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Great Lakes region (2)
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Gulf Coastal Plain (4)
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Keweenawan Rift (1)
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Michigan Basin (29)
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Rocky Mountains (2)
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Saint Lawrence Lowlands (1)
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Western Canada Sedimentary Basin (2)
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Western Interior
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Western Interior Seaway (1)
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Williston Basin (2)
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Pacific Ocean
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East Pacific
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Northeast Pacific
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Cascadia Basin (1)
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North Pacific
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Northeast Pacific
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Cascadia Basin (1)
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South Pacific
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Southwest Pacific
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Java Sea (1)
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West Pacific
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Indonesian Seas
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Java Sea (1)
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Southwest Pacific
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Java Sea (1)
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Sunda Shelf (1)
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Permian Basin (3)
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Raton Basin (1)
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Richmond Basin (1)
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Rome Trough (8)
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San Juan Basin (7)
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Sydney Basin (1)
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United States
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Alabama
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Dallas County Alabama (1)
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Walker County Alabama (1)
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Allegheny Front (3)
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Allegheny Plateau (2)
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Anadarko Basin (3)
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Arkoma Basin (3)
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Atlantic Coastal Plain (1)
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Black Warrior Basin (1)
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Blue Ridge Mountains (1)
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Carolina Terrane (1)
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Catskill Delta (8)
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Cincinnati Arch (3)
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Colorado (5)
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Delaware Basin (2)
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Denver Basin (3)
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District of Columbia (1)
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Dunkard Basin (2)
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Eastern U.S. (19)
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Florida
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Florida Keys (1)
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South Florida Basin (1)
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Forest City Basin (1)
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Georgia (1)
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Great Smoky Mountains (1)
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Hudson Valley (2)
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Illinois (5)
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Illinois Basin (23)
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Indiana
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Jackson County Indiana (1)
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Kentucky
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Carter County Kentucky (2)
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Eastern Kentucky coal field (2)
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Elliott County Kentucky (1)
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Greenup County Kentucky (1)
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Letcher County Kentucky (1)
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Lewis County Kentucky (1)
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Magoffin County Kentucky (1)
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Martin County Kentucky (1)
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Menifee County Kentucky (1)
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Perry County Kentucky (1)
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Pike County Kentucky (4)
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Powell County Kentucky (1)
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Rockcastle County Kentucky (1)
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Rough Creek fault zone (1)
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Rowan County Kentucky (2)
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Maryland
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Allegany County Maryland
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Cumberland Maryland (1)
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Garrett County Maryland (1)
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Washington County Maryland (1)
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Michigan
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Michigan Lower Peninsula
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Sanilac County Michigan (1)
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Midcontinent (11)
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Midwest (4)
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Mississippi Embayment (1)
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Montana (1)
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Narragansett Basin (1)
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Nashville Dome (1)
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New England (1)
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New Jersey (3)
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New Mexico (4)
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New York
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Albany County New York (1)
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Allegany County New York (1)
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Catskill Mountains (1)
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Cayuga County New York (2)
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Chautauqua County New York (1)
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Clinton County New York (1)
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Erie County New York (4)
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Essex County New York (1)
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Finger Lakes
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Cayuga Lake (1)
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Fulton County New York (1)
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Genesee County New York (1)
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Greene County New York (2)
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Herkimer County New York (1)
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Livingston County New York (1)
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Montgomery County New York (1)
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Niagara County New York (1)
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Saratoga County New York (1)
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Schenectady County New York (1)
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Schoharie County New York (2)
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Seneca County New York (3)
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Steuben County New York (1)
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Tompkins County New York (2)
-
Ulster County New York (2)
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Warren County New York (1)
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Washington County New York (1)
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Wyoming County New York (1)
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Newark Basin (1)
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North Carolina
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Onslow Bay (1)
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Ohio
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Ashland County Ohio (1)
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Ashtabula County Ohio (1)
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Athens County Ohio (2)
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Belmont County Ohio (1)
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Columbiana County Ohio (1)
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Cuyahoga County Ohio (1)
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Erie County Ohio (2)
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Gallia County Ohio (1)
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Hamilton County Ohio
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Cincinnati Ohio (1)
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Hocking County Ohio (1)
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Huron County Ohio (1)
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Jackson County Ohio (1)
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Jefferson County Ohio
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Steubenville Ohio (1)
-
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Lake County Ohio (1)
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Lorain County Ohio (1)
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Meigs County Ohio (2)
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Noble County Ohio (1)
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Perry County Ohio (1)
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Richland County Ohio (1)
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Tuscarawas County Ohio (1)
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Union County Ohio (1)
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Vinton County Ohio (2)
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Wyandot County Ohio (1)
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Oklahoma
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Carter County Oklahoma (1)
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Cleveland County Oklahoma (1)
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Johnston County Oklahoma (1)
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Murray County Oklahoma (1)
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Pontotoc County Oklahoma (1)
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Ouachita Belt (2)
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Paradox Basin (1)
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Pennsylvania
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Allegheny County Pennsylvania (1)
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Armstrong County Pennsylvania (1)
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Blair County Pennsylvania (1)
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Bradford County Pennsylvania (5)
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Centre County Pennsylvania (2)
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Clearfield County Pennsylvania (2)
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Clinton County Pennsylvania (3)
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Columbia County Pennsylvania (1)
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Dauphin County Pennsylvania
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Harrisburg Pennsylvania (1)
-
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Fayette County Pennsylvania (1)
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Fulton County Pennsylvania (1)
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Greene County Pennsylvania (3)
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Huntingdon County Pennsylvania (1)
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Indiana County Pennsylvania (3)
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Lackawanna County Pennsylvania (2)
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Lawrence County Pennsylvania (1)
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Luzerne County Pennsylvania (3)
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Lycoming County Pennsylvania (1)
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McKean County Pennsylvania (1)
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Mifflin County Pennsylvania (1)
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Perry County Pennsylvania (1)
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Snyder County Pennsylvania (1)
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Somerset County Pennsylvania (1)
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Sullivan County Pennsylvania (2)
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Susquehanna County Pennsylvania (1)
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Tioga County Pennsylvania (3)
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Union County Pennsylvania (2)
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Washington County Pennsylvania (2)
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Wayne County Pennsylvania (1)
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Wyoming County Pennsylvania (1)
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Powder River basin (4)
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Reelfoot Rift (1)
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South Dakota (1)
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Susquehanna River (1)
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Susquehanna River basin (1)
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Tennessee
-
Campbell County Tennessee (1)
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Grainger County Tennessee (1)
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Hancock County Tennessee (1)
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Putnam County Tennessee (1)
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Texas
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East Texas (1)
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Fort Worth Basin (3)
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Galveston County Texas
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Galveston Texas (1)
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Hood County Texas (1)
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Val Verde Basin (1)
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West Texas (1)
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Utah
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Daggett County Utah (1)
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Virginia
-
Alleghany County Virginia (1)
-
Bland County Virginia (1)
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Botetourt County Virginia (1)
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Craig County Virginia (1)
-
Frederick County Virginia (1)
-
Giles County Virginia (1)
-
Montgomery County Virginia (1)
-
Pulaski County Virginia (1)
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Roanoke County Virginia (1)
-
Tazewell County Virginia (1)
-
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West Virginia
-
Granny Creek Field (1)
-
Grant County West Virginia (1)
-
Hardy County West Virginia (1)
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Harrison County West Virginia (2)
-
Kanawha County West Virginia (2)
-
Marion County West Virginia (2)
-
Marshall County West Virginia (1)
-
Mason County West Virginia (1)
-
Mercer County West Virginia (2)
-
Monongalia County West Virginia (4)
-
Pendleton County West Virginia (1)
-
Preston County West Virginia (1)
-
Raleigh County West Virginia (1)
-
Ritchie County West Virginia (1)
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Summers County West Virginia (1)
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Wayne County West Virginia (1)
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Wetzel County West Virginia (3)
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Wood County West Virginia (1)
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Wyoming
-
Campbell County Wyoming (1)
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commodities
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bentonite deposits (1)
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bitumens
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asphalt (1)
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brines (6)
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coal deposits (3)
-
energy sources (13)
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geothermal energy (1)
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gypsum deposits (1)
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metal ores
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lead ores (1)
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lead-zinc deposits (2)
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uranium ores (1)
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zinc ores (1)
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mineral deposits, genesis (1)
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oil and gas fields (13)
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petroleum
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natural gas
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coalbed methane (3)
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shale gas (12)
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shale oil (2)
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tight sands (4)
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elements, isotopes
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carbon
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C-13 (1)
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C-13/C-12 (21)
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organic carbon (11)
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halogens
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bromine
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bromide ion (1)
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chlorine
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chloride ion (1)
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-
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hydrogen
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D/H (6)
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tritium (1)
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isotope ratios (23)
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isotopes
-
radioactive isotopes
-
Ra-228/Ra-226 (1)
-
tritium (1)
-
-
stable isotopes
-
Ar-36 (1)
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Ar-40 (1)
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C-13 (1)
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C-13/C-12 (21)
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D/H (6)
-
He-4 (1)
-
Hf-177/Hf-176 (1)
-
Kr-84 (1)
-
N-15/N-14 (1)
-
Ne-21 (1)
-
O-18/O-16 (11)
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S-34/S-32 (3)
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Sr-87/Sr-86 (2)
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-
-
Lu/Hf (1)
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metals
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alkali metals
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sodium (1)
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alkaline earth metals
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calcium (2)
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radium
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Ra-228/Ra-226 (1)
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strontium
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Sr-87/Sr-86 (2)
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-
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antimony (1)
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arsenic (2)
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hafnium
-
Hf-177/Hf-176 (1)
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iron (3)
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manganese (1)
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molybdenum (1)
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rare earths (1)
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tungsten (1)
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nitrogen
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N-15/N-14 (1)
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-
noble gases
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argon
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Ar-36 (1)
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Ar-40 (1)
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helium
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He-4 (1)
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krypton
-
Kr-84 (1)
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neon
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Ne-21 (1)
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-
radon (1)
-
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oxygen
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O-18/O-16 (11)
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phosphorus (1)
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sulfur
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S-34/S-32 (3)
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trace metals (1)
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-
fossils
-
bacteria (1)
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borings (1)
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burrows (3)
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Chordata
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Vertebrata
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Tetrapoda
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Mammalia
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Theria
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Eutheria
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Perissodactyla
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Hippomorpha
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Equidae (1)
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-
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coprolites (1)
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Graptolithina (2)
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ichnofossils (9)
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Invertebrata
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Arthropoda
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Chelicerata
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Arachnida (1)
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Merostomata
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Eurypterida (2)
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-
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Mandibulata
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Crustacea
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Copepoda (1)
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Ostracoda
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Podocopida
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Bairdiomorpha
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Bairdiacea
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Bairdiidae
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Bairdia (1)
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Insecta (1)
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Trilobitomorpha
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Trilobita (7)
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Brachiopoda
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Articulata
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Pentamerida (1)
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Rhynchonellida (1)
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Spiriferida
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Spiriferidina (1)
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Bryozoa (4)
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Cnidaria
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Anthozoa (4)
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Echinodermata
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Crinozoa
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Crinoidea (2)
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Echinozoa
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Echinoidea (1)
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Mollusca
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Bivalvia
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Pterioida (1)
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Cephalopoda
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Ammonoidea
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Goniatitida
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Goniatitidae
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Goniatites (1)
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Gastropoda
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Turritellidae (1)
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Polyplacophora (2)
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Porifera (1)
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Protista
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Foraminifera
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Fusulinina
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Fusulinidae (2)
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microfossils
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Chitinozoa (1)
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Conodonta
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Palmatolepis (1)
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Fusulinina
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Fusulinidae (2)
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palynomorphs
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acritarchs (1)
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Chitinozoa (1)
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miospores
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pollen (2)
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Plantae
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algae
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Chlorophyta
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Tasmanites (1)
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-
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Pteridophyta
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Filicopsida (1)
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Lycopsida
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Stigmaria (1)
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-
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Spermatophyta
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Angiospermae (1)
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Gymnospermae
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Coniferae (1)
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Coniferales (2)
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Pteridospermae (1)
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problematic fossils (4)
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geochronology methods
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(U-Th)/He (1)
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Ar/Ar (2)
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fission-track dating (1)
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K/Ar (1)
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Lu/Hf (1)
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paleomagnetism (2)
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tephrochronology (1)
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U/Pb (4)
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geologic age
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Cenozoic
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Quaternary
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Holocene (4)
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Pleistocene (2)
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Tertiary
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Neogene
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Miocene
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middle Miocene (1)
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Pliocene (1)
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Mesozoic
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Cretaceous
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Comanchean
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Travis Peak Formation (1)
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Lower Cretaceous
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Mowry Shale (1)
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Travis Peak Formation (1)
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Upper Cretaceous
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Gulfian
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Austin Chalk (1)
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Eagle Ford Formation (2)
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Lance Formation (1)
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Lewis Shale (2)
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Mesaverde Group (1)
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Niobrara Formation (1)
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Rock Springs Formation (1)
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Jurassic
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Lower Jurassic (1)
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Upper Jurassic
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Bossier Formation (1)
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Haynesville Formation (1)
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Nugget Sandstone (1)
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Paleozoic
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Berea Sandstone (3)
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Cambrian
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Acadian (1)
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Conasauga Group (2)
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Lower Cambrian
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Rome Formation (1)
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Upper Cambrian
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Copper Ridge Dolomite (1)
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Mount Simon Sandstone (1)
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Carboniferous
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Lower Carboniferous
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Dinantian (1)
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Middle Carboniferous (1)
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Mississippian
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Barnett Shale (1)
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Borden Group (2)
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Logan Formation (1)
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Lower Mississippian
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Cuyahoga Formation (1)
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Fort Payne Formation (1)
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Kinderhookian (2)
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Osagian (3)
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Pocono Formation (2)
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Tournaisian (1)
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Middle Mississippian
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Visean (1)
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Price Formation (2)
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Sunbury Shale (2)
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Upper Mississippian
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Chesterian (1)
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Fayetteville Formation (1)
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Greenbrier Limestone (2)
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Hartselle Sandstone (1)
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Hinton Formation (1)
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Mauch Chunk Formation (3)
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Pennington Formation (3)
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Namurian (1)
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Pennsylvanian
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Conemaugh Group (6)
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Freeport Formation (1)
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Herrin Coal Member (1)
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Kittanning Formation (2)
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La Salle Limestone (1)
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Lower Pennsylvanian
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Bashkirian (1)
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Caseyville Formation (1)
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Lee Formation (3)
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Morrowan (3)
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New River Formation (3)
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Pocahontas Formation (5)
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Middle Pennsylvanian
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Allegheny Group (11)
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Atokan
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Atoka Formation (3)
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Breathitt Formation (6)
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Desmoinesian (6)
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Kanawha Formation (5)
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Moscovian (1)
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Monongahela Group (3)
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Morrow Formation (1)
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Pittsburgh Coal (2)
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Pottsville Group (9)
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Upper Pennsylvanian
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Ames Limestone (2)
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Glenshaw Formation (2)
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Missourian (4)
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Virgilian (2)
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Upper Carboniferous
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Westphalian (3)
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Catskill Formation (3)
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Chattanooga Shale (5)
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Deadwood Formation (1)
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Devonian
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Genesee Group (4)
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Lower Devonian
-
Coeymans Formation (1)
-
Emsian (4)
-
Oriskany Sandstone (3)
-
-
Middle Devonian
-
Boyle Dolomite (1)
-
Columbus Limestone (1)
-
Detroit River Group (1)
-
Dundee Limestone (1)
-
Eifelian (8)
-
Givetian (8)
-
Hamilton Group (13)
-
Ludlowville Formation (3)
-
Mahantango Formation (6)
-
Marcellus Shale (47)
-
Moscow Formation (3)
-
Onondaga Limestone (14)
-
Tioga Bentonite (4)
-
Tully Limestone (7)
-
-
Millboro Shale (1)
-
Traverse Group (1)
-
Upper Devonian
-
Brallier Shale (3)
-
Canadaway Group (2)
-
Chemung Formation (2)
-
Cleveland Member (2)
-
Famennian (8)
-
Frasnian
-
upper Frasnian (1)
-
-
Hampshire Formation (2)
-
Huron Member (8)
-
Kellwasser event (3)
-
Ohio Shale (13)
-
West Falls Formation (1)
-
-
-
Dunkard Group (2)
-
Helderberg Group (2)
-
Keyser Limestone (1)
-
Knox Group (5)
-
lower Paleozoic
-
Rose Run Sandstone (4)
-
-
New Albany Shale (7)
-
Ordovician
-
Clays Ferry Formation (1)
-
Lexington Limestone (1)
-
Lower Ordovician
-
Arenigian (1)
-
Beekmantown Group (2)
-
-
Martinsburg Formation (2)
-
Middle Ordovician
-
Black River Group (2)
-
Deicke Bentonite Bed (1)
-
Dolgeville Formation (1)
-
Simpson Group (1)
-
-
Montoya Group (1)
-
Trenton Group (11)
-
Upper Ordovician
-
Cincinnatian (2)
-
Edenian (1)
-
Fairview Formation (1)
-
Juniata Formation (2)
-
Katian (2)
-
Mohawkian (2)
-
Trentonian (8)
-
-
Utica Shale (12)
-
Viola Limestone (1)
-
-
Permian
-
Lower Permian (2)
-
Upper Permian (1)
-
-
Rondout Formation (1)
-
Silurian
-
Lockport Formation (1)
-
Lower Silurian
-
Grimsby Sandstone (1)
-
Llandovery (2)
-
Tuscarora Formation (8)
-
Whirlpool Sandstone (1)
-
-
Middle Silurian
-
Clinton Group (5)
-
McKenzie Formation (1)
-
Rochester Formation (1)
-
-
Niagaran (2)
-
Upper Silurian
-
Cayugan
-
Tonoloway Limestone (2)
-
-
Salina Group (4)
-
-
-
upper Paleozoic
-
Antrim Shale (6)
-
Kaskaskia Sequence (1)
-
-
Woodford Shale (1)
-
-
Phanerozoic (2)
-
Precambrian
-
upper Precambrian
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Proterozoic
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Mesoproterozoic (1)
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Neoproterozoic (2)
-
-
-
-
-
igneous rocks
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igneous rocks
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volcanic rocks
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basalts (1)
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pyroclastics
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tuff (1)
-
-
-
-
volcanic ash (1)
-
-
metamorphic rocks
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K-bentonite (6)
-
metabentonite (7)
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metamorphic rocks
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metasedimentary rocks (4)
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turbidite (4)
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minerals
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carbonates
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calcite (5)
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dolomite (6)
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halides
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chlorides
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halite (1)
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K-bentonite (6)
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metabentonite (7)
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minerals (1)
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oxides
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phosphates
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apatite (1)
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monazite (2)
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silicates
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framework silicates
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feldspar group
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alkali feldspar
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sanidine (1)
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silica minerals
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chalcedony (1)
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quartz (3)
-
-
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orthosilicates
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nesosilicates
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zircon group
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zircon (6)
-
-
-
-
sheet silicates
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chlorite group
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chamosite (1)
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chlorite (1)
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clay minerals
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kaolinite (1)
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smectite (4)
-
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illite (6)
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mica group
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glauconite (1)
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muscovite (1)
-
-
-
-
sulfates
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anhydrite (1)
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barite (1)
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sulfides
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marcasite (1)
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pyrite (6)
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-
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Primary terms
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absolute age (9)
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Africa
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Egypt
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Sinai Egypt (1)
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Asia
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Far East
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Atlantic Ocean
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Australasia
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bacteria (1)
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Canada
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Ontario
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Western Canada
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carbon
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C-13 (1)
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C-13/C-12 (21)
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organic carbon (11)
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Caribbean region
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West Indies
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Bahamas (1)
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catalogs (1)
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Cenozoic
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Quaternary
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Tertiary
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Neogene
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Miocene
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middle Miocene (1)
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Pliocene (1)
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-
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Chordata
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Vertebrata
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Tetrapoda
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Mammalia
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Theria
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Eutheria
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Perissodactyla
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Hippomorpha
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Equidae (1)
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-
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-
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clay mineralogy (11)
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climate change (3)
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coal deposits (3)
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coprolites (1)
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crust (2)
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crystal structure (2)
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data processing (3)
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deformation (11)
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diagenesis (22)
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earthquakes (6)
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epeirogeny (1)
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Europe
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Germany (1)
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Donets Basin (2)
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Southern Europe
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Romania (1)
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Western Europe
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Scandinavia
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England
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-
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-
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faults (26)
-
folds (8)
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fractures (22)
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geochemistry (44)
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geochronology (3)
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geomorphology (1)
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geophysical methods (28)
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geosynclines (1)
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geothermal energy (1)
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glacial geology (3)
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glossaries (1)
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Graptolithina (2)
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ground water (10)
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gypsum deposits (1)
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heat flow (5)
-
hydrogen
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D/H (6)
-
tritium (1)
-
-
hydrology (1)
-
ichnofossils (9)
-
igneous rocks
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volcanic rocks
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basalts (1)
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pyroclastics
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tuff (1)
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-
-
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inclusions
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fluid inclusions (7)
-
-
Indian Ocean
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Arabian Sea
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Persian Gulf (1)
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-
-
intrusions (2)
-
Invertebrata
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Arthropoda
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Chelicerata
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Arachnida (1)
-
Merostomata
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Eurypterida (2)
-
-
-
Mandibulata
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Crustacea
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Copepoda (1)
-
Ostracoda
-
Podocopida
-
Bairdiomorpha
-
Bairdiacea
-
Bairdiidae
-
Bairdia (1)
-
-
-
-
-
-
-
Insecta (1)
-
-
Trilobitomorpha
-
Trilobita (7)
-
-
-
Brachiopoda
-
Articulata
-
Pentamerida (1)
-
Rhynchonellida (1)
-
Spiriferida
-
Spiriferidina (1)
-
-
-
-
Bryozoa (4)
-
Cnidaria
-
Anthozoa (4)
-
-
Echinodermata
-
Crinozoa
-
Crinoidea (2)
-
-
Echinozoa
-
Echinoidea (1)
-
-
-
Mollusca
-
Bivalvia
-
Pterioida (1)
-
-
Cephalopoda
-
Ammonoidea
-
Goniatitida
-
Goniatitidae
-
Goniatites (1)
-
-
-
-
-
Gastropoda
-
Turritellidae (1)
-
-
Polyplacophora (2)
-
-
Porifera (1)
-
Protista
-
Foraminifera
-
Fusulinina
-
Fusulinidae (2)
-
-
-
-
-
isostasy (2)
-
isotopes
-
radioactive isotopes
-
Ra-228/Ra-226 (1)
-
tritium (1)
-
-
stable isotopes
-
Ar-36 (1)
-
Ar-40 (1)
-
C-13 (1)
-
C-13/C-12 (21)
-
D/H (6)
-
He-4 (1)
-
Hf-177/Hf-176 (1)
-
Kr-84 (1)
-
N-15/N-14 (1)
-
Ne-21 (1)
-
O-18/O-16 (11)
-
S-34/S-32 (3)
-
Sr-87/Sr-86 (2)
-
-
-
land subsidence (2)
-
maps (7)
-
mathematical geology (1)
-
Mediterranean Sea
-
East Mediterranean
-
Black Sea (1)
-
-
-
Mesozoic
-
Cretaceous
-
Comanchean
-
Travis Peak Formation (1)
-
-
Lower Cretaceous
-
Mowry Shale (1)
-
Travis Peak Formation (1)
-
-
Upper Cretaceous
-
Gulfian
-
Austin Chalk (1)
-
Eagle Ford Formation (2)
-
-
Lance Formation (1)
-
Lewis Shale (2)
-
Mesaverde Group (1)
-
Niobrara Formation (1)
-
Rock Springs Formation (1)
-
-
-
Jurassic
-
Lower Jurassic (1)
-
Upper Jurassic
-
Bossier Formation (1)
-
Haynesville Formation (1)
-
-
-
Nugget Sandstone (1)
-
-
metal ores
-
lead ores (1)
-
lead-zinc deposits (2)
-
uranium ores (1)
-
zinc ores (1)
-
-
metals
-
alkali metals
-
sodium (1)
-
-
alkaline earth metals
-
calcium (2)
-
radium
-
Ra-228/Ra-226 (1)
-
-
strontium
-
Sr-87/Sr-86 (2)
-
-
-
antimony (1)
-
arsenic (2)
-
hafnium
-
Hf-177/Hf-176 (1)
-
-
iron (3)
-
manganese (1)
-
molybdenum (1)
-
rare earths (1)
-
tungsten (1)
-
-
metamorphic rocks
-
metasedimentary rocks (4)
-
-
metamorphism (6)
-
metasomatism (5)
-
Mexico
-
Baja California (1)
-
-
mineral deposits, genesis (1)
-
minerals (1)
-
mining geology (2)
-
nitrogen
-
N-15/N-14 (1)
-
-
noble gases
-
argon
-
Ar-36 (1)
-
Ar-40 (1)
-
-
helium
-
He-4 (1)
-
-
krypton
-
Kr-84 (1)
-
-
neon
-
Ne-21 (1)
-
-
radon (1)
-
-
North America
-
Appalachian Basin (342)
-
Appalachians
-
Appalachian Plateau (8)
-
Blue Ridge Mountains (1)
-
Blue Ridge Province (1)
-
Catskill Mountains (1)
-
Central Appalachians (12)
-
Northern Appalachians (12)
-
Piedmont
-
Inner Piedmont (1)
-
-
Southern Appalachians (3)
-
Valley and Ridge Province (8)
-
-
Canadian Shield
-
Grenville Province (1)
-
-
Champlain Valley (1)
-
Great Lakes region (2)
-
Gulf Coastal Plain (4)
-
Keweenawan Rift (1)
-
Michigan Basin (29)
-
Rocky Mountains (2)
-
Saint Lawrence Lowlands (1)
-
Western Canada Sedimentary Basin (2)
-
Western Interior
-
Western Interior Seaway (1)
-
-
Williston Basin (2)
-
-
oceanography (2)
-
oil and gas fields (13)
-
orogeny (13)
-
oxygen
-
O-18/O-16 (11)
-
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific
-
Cascadia Basin (1)
-
-
-
North Pacific
-
Northeast Pacific
-
Cascadia Basin (1)
-
-
-
South Pacific
-
Southwest Pacific
-
Java Sea (1)
-
-
-
West Pacific
-
Indonesian Seas
-
Java Sea (1)
-
-
Southwest Pacific
-
Java Sea (1)
-
-
Sunda Shelf (1)
-
-
-
paleobotany (4)
-
paleoclimatology (28)
-
paleoecology (30)
-
paleogeography (19)
-
paleomagnetism (2)
-
paleontology (13)
-
Paleozoic
-
Berea Sandstone (3)
-
Cambrian
-
Acadian (1)
-
Conasauga Group (2)
-
Lower Cambrian
-
Rome Formation (1)
-
-
Upper Cambrian
-
Copper Ridge Dolomite (1)
-
Mount Simon Sandstone (1)
-
-
-
Carboniferous
-
Lower Carboniferous
-
Dinantian (1)
-
-
Middle Carboniferous (1)
-
Mississippian
-
Barnett Shale (1)
-
Borden Group (2)
-
Logan Formation (1)
-
Lower Mississippian
-
Cuyahoga Formation (1)
-
Fort Payne Formation (1)
-
Kinderhookian (2)
-
Osagian (3)
-
Pocono Formation (2)
-
Tournaisian (1)
-
-
Middle Mississippian
-
Visean (1)
-
-
Price Formation (2)
-
Sunbury Shale (2)
-
Upper Mississippian
-
Chesterian (1)
-
Fayetteville Formation (1)
-
Greenbrier Limestone (2)
-
Hartselle Sandstone (1)
-
Hinton Formation (1)
-
Mauch Chunk Formation (3)
-
Pennington Formation (3)
-
-
-
Namurian (1)
-
Pennsylvanian
-
Conemaugh Group (6)
-
Freeport Formation (1)
-
Herrin Coal Member (1)
-
Kittanning Formation (2)
-
La Salle Limestone (1)
-
Lower Pennsylvanian
-
Bashkirian (1)
-
Caseyville Formation (1)
-
Lee Formation (3)
-
Morrowan (3)
-
New River Formation (3)
-
Pocahontas Formation (5)
-
-
Middle Pennsylvanian
-
Allegheny Group (11)
-
Atokan
-
Atoka Formation (3)
-
-
Breathitt Formation (6)
-
Desmoinesian (6)
-
Kanawha Formation (5)
-
Moscovian (1)
-
-
Monongahela Group (3)
-
Morrow Formation (1)
-
Pittsburgh Coal (2)
-
Pottsville Group (9)
-
Upper Pennsylvanian
-
Ames Limestone (2)
-
Glenshaw Formation (2)
-
Missourian (4)
-
Virgilian (2)
-
-
-
Upper Carboniferous
-
Westphalian (3)
-
-
-
Catskill Formation (3)
-
Chattanooga Shale (5)
-
Deadwood Formation (1)
-
Devonian
-
Genesee Group (4)
-
Lower Devonian
-
Coeymans Formation (1)
-
Emsian (4)
-
Oriskany Sandstone (3)
-
-
Middle Devonian
-
Boyle Dolomite (1)
-
Columbus Limestone (1)
-
Detroit River Group (1)
-
Dundee Limestone (1)
-
Eifelian (8)
-
Givetian (8)
-
Hamilton Group (13)
-
Ludlowville Formation (3)
-
Mahantango Formation (6)
-
Marcellus Shale (47)
-
Moscow Formation (3)
-
Onondaga Limestone (14)
-
Tioga Bentonite (4)
-
Tully Limestone (7)
-
-
Millboro Shale (1)
-
Traverse Group (1)
-
Upper Devonian
-
Brallier Shale (3)
-
Canadaway Group (2)
-
Chemung Formation (2)
-
Cleveland Member (2)
-
Famennian (8)
-
Frasnian
-
upper Frasnian (1)
-
-
Hampshire Formation (2)
-
Huron Member (8)
-
Kellwasser event (3)
-
Ohio Shale (13)
-
West Falls Formation (1)
-
-
-
Dunkard Group (2)
-
Helderberg Group (2)
-
Keyser Limestone (1)
-
Knox Group (5)
-
lower Paleozoic
-
Rose Run Sandstone (4)
-
-
New Albany Shale (7)
-
Ordovician
-
Clays Ferry Formation (1)
-
Lexington Limestone (1)
-
Lower Ordovician
-
Arenigian (1)
-
Beekmantown Group (2)
-
-
Martinsburg Formation (2)
-
Middle Ordovician
-
Black River Group (2)
-
Deicke Bentonite Bed (1)
-
Dolgeville Formation (1)
-
Simpson Group (1)
-
-
Montoya Group (1)
-
Trenton Group (11)
-
Upper Ordovician
-
Cincinnatian (2)
-
Edenian (1)
-
Fairview Formation (1)
-
Juniata Formation (2)
-
Katian (2)
-
Mohawkian (2)
-
Trentonian (8)
-
-
Utica Shale (12)
-
Viola Limestone (1)
-
-
Permian
-
Lower Permian (2)
-
Upper Permian (1)
-
-
Rondout Formation (1)
-
Silurian
-
Lockport Formation (1)
-
Lower Silurian
-
Grimsby Sandstone (1)
-
Llandovery (2)
-
Tuscarora Formation (8)
-
Whirlpool Sandstone (1)
-
-
Middle Silurian
-
Clinton Group (5)
-
McKenzie Formation (1)
-
Rochester Formation (1)
-
-
Niagaran (2)
-
Upper Silurian
-
Cayugan
-
Tonoloway Limestone (2)
-
-
Salina Group (4)
-
-
-
upper Paleozoic
-
Antrim Shale (6)
-
Kaskaskia Sequence (1)
-
-
Woodford Shale (1)
-
-
palynology (2)
-
palynomorphs
-
acritarchs (1)
-
Chitinozoa (1)
-
miospores
-
pollen (2)
-
-
-
paragenesis (2)
-
petroleum
-
natural gas
-
coalbed methane (3)
-
shale gas (12)
-
-
shale oil (2)
-
-
petrology (3)
-
Phanerozoic (2)
-
phosphorus (1)
-
Plantae
-
algae
-
Chlorophyta
-
Tasmanites (1)
-
-
-
Pteridophyta
-
Filicopsida (1)
-
Lycopsida
-
Stigmaria (1)
-
-
-
Spermatophyta
-
Angiospermae (1)
-
Gymnospermae
-
Coniferae (1)
-
Coniferales (2)
-
Pteridospermae (1)
-
-
-
-
plate tectonics (4)
-
pollution (9)
-
Precambrian
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (1)
-
Neoproterozoic (2)
-
-
-
-
problematic fossils (4)
-
reclamation (1)
-
reefs (4)
-
reservoirs (1)
-
rock mechanics (2)
-
sea water (2)
-
sea-level changes (31)
-
sedimentary petrology (24)
-
sedimentary rocks
-
carbonate rocks
-
dolostone (6)
-
limestone
-
biosparite (1)
-
micrite (1)
-
-
-
chemically precipitated rocks
-
chert (3)
-
evaporites
-
salt (2)
-
-
ironstone (1)
-
phosphate rocks (1)
-
silcrete (1)
-
-
clastic rocks
-
arenite
-
quartz arenite (4)
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