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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
North Africa
-
Morocco (1)
-
-
West Africa
-
Nigeria
-
Niger Delta (1)
-
-
-
-
Amelia (1)
-
Antarctica
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Antarctic ice sheet
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East Antarctic ice sheet (1)
-
-
-
Arctic Ocean
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Mendeleyev Ridge (1)
-
-
Asia
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Central Asia
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Kazakhstan (1)
-
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Far East
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China (2)
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Indonesia
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Java (1)
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Japan (1)
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Indian Peninsula
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India (2)
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Kohistan (1)
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Pakistan (1)
-
-
Middle East
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Zagros (1)
-
-
Popigay Structure (2)
-
-
Atlantic Ocean
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North Atlantic
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Baltimore Canyon (1)
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Baltimore Canyon Trough (2)
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Bay of Biscay (1)
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Georges Bank (2)
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Great Meteor Seamount (1)
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Gulf of Mexico (4)
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Long Island Sound (1)
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Northwest Atlantic (7)
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Wilmington Canyon (3)
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-
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Atlantic region (2)
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Australasia
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Australia (3)
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New Zealand
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Otago New Zealand
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Oamaru New Zealand (1)
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-
-
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Avalon Zone (2)
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Bay of Islands (1)
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Beaver Creek (1)
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Canada
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Arctic Archipelago (1)
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Eastern Canada
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Maritime Provinces
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New Brunswick (2)
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Nova Scotia
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Minas Basin (1)
-
-
-
Newfoundland and Labrador
-
Newfoundland (3)
-
-
Ontario
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Ottawa Ontario (1)
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Simcoe County Ontario
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Borden Ontario (1)
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-
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Quebec
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Charlevoix (1)
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Gaspe-Est County Quebec
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Gaspe Quebec (1)
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Gatineau Valley (1)
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Montreal and Jesus Islands County Quebec
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Montreal Quebec (1)
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Mackenzie Mountains (2)
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Western Canada
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Alberta (3)
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British Columbia (4)
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Canadian Rocky Mountains (3)
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Northwest Territories (2)
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Yukon Territory (1)
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Caribbean region
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West Indies
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Antilles
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Greater Antilles
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Puerto Rico (2)
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Lesser Antilles
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Barbados (1)
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Virgin Islands (2)
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Bahamas (1)
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Central America
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Costa Rica (1)
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Guatemala (1)
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Panama (1)
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Chesapeake Bay impact structure (3)
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Chicxulub Crater (1)
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Coast Ranges (1)
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Commonwealth of Independent States
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Kazakhstan (1)
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Russian Federation
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Popigay Structure (2)
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Ukraine
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Podolia (1)
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Europe
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Baltic region
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Estonia (1)
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Central Europe
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Bohemian Massif (1)
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Germany
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Franconia (1)
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Saxony Germany (1)
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-
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Pyrenees (2)
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Southern Europe
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Iberian Peninsula
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Spain (2)
-
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Italy
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Calabria Italy (1)
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Ivrea-Verbano Zone (1)
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Sicily Italy
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Lipari Islands
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Vulcano (1)
-
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Pantelleria (1)
-
-
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Yugoslavia (1)
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Ukraine
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Podolia (1)
-
-
Western Europe
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Ireland
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Galway Ireland (1)
-
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Netherlands (1)
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Scandinavia
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Denmark (1)
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Norway (1)
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Sweden (1)
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United Kingdom
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Great Britain
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England (1)
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Scotland (1)
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Fall Line (4)
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False Cape (1)
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Fire Island (1)
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Front Range (1)
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Grandfather Mountain (2)
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Great South Bay (1)
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Hartford Basin (6)
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Hunter Valley (2)
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Indian Ocean (1)
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James River (4)
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Long Island (1)
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Mediterranean Sea (1)
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Mexico
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Tabasco Mexico (1)
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-
Mount Jefferson (1)
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New River (1)
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Newport Bay (1)
-
North America
-
Appalachian Basin (22)
-
Appalachians
-
Allegheny Mountains (1)
-
Appalachian Plateau (6)
-
Blue Ridge Mountains (11)
-
Blue Ridge Province (26)
-
Carolina slate belt (2)
-
Central Appalachians (48)
-
Cumberland Plateau (1)
-
Great Appalachian Valley (6)
-
Northern Appalachians (1)
-
Piedmont
-
Inner Piedmont (1)
-
-
Southern Appalachians (16)
-
Valley and Ridge Province (54)
-
-
Eastern Overthrust Belt (2)
-
Gulf Coastal Plain (5)
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Michigan Basin (1)
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Rocky Mountains
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Canadian Rocky Mountains (3)
-
-
-
Northern Hemisphere (1)
-
Oceania
-
Micronesia
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Marshall Islands
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Enewetak Atoll (1)
-
-
-
-
Outer Banks (1)
-
Pacific Ocean
-
East Pacific
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Northeast Pacific (1)
-
-
North Pacific
-
Northeast Pacific (1)
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Northwest Pacific
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Shatsky Rise (1)
-
-
-
West Pacific
-
Northwest Pacific
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Shatsky Rise (1)
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-
-
-
Pine Mountain Fault (2)
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Pulaski Fault (2)
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Richmond Basin (9)
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Rome Trough (1)
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Saltville Fault (2)
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Savage River (1)
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Sierra Nevada (1)
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South America
-
Argentina
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Pampean Mountains (1)
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Brazil
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Sao Paulo Brazil (1)
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-
Peru (1)
-
Venezuela
-
Orinoco Delta (1)
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-
-
South Island (1)
-
South Mountain (1)
-
Southern Ocean
-
Weddell Sea
-
Maud Rise (1)
-
-
-
United States
-
Alabama (22)
-
Alaska
-
Aleutian Islands (1)
-
-
Allegheny Front (1)
-
Allegheny Mountains (1)
-
Allegheny Plateau (3)
-
Aquia Aquifer (2)
-
Arizona
-
Pima County Arizona
-
Tucson Arizona (1)
-
-
-
Arkansas (3)
-
Arkoma Basin (1)
-
Atlantic Coastal Plain
-
Central Atlantic Coastal Plain (17)
-
-
Bighorn Basin (1)
-
Blue Ridge Mountains (11)
-
Bronson Hill Anticlinorium (1)
-
California
-
Los Angeles County California
-
Los Angeles California (1)
-
-
San Diego County California
-
San Diego California (1)
-
-
Santa Clara County California
-
San Jose California (1)
-
-
-
Carolina Terrane (1)
-
Catskill Delta (2)
-
Chesapeake Bay (46)
-
Cincinnati Arch (3)
-
Colorado (2)
-
Columbia Plateau (1)
-
Connecticut
-
Hartford County Connecticut (1)
-
-
Culpeper Basin (14)
-
Dan River basin (4)
-
Delaware
-
Kent County Delaware
-
Dover Air Force Base (4)
-
-
New Castle County Delaware (12)
-
Sussex County Delaware
-
Bethany Beach Delaware (3)
-
-
-
Delaware Basin (2)
-
Delaware Bay (6)
-
Delaware River (1)
-
Delmarva Peninsula (11)
-
District of Columbia (22)
-
Eastern U.S.
-
Southeastern U.S. (3)
-
-
Florida
-
Duval County Florida (2)
-
Franklin County Florida
-
Apalachicola Bay (1)
-
-
-
Georgia (24)
-
Gettysburg Basin (2)
-
Hudson River (3)
-
Idaho (1)
-
Illinois
-
Johnson County Illinois (1)
-
-
Illinois Basin (1)
-
Indiana
-
Jackson County Indiana (1)
-
-
Iowa (1)
-
Kentucky
-
Rowan County Kentucky (1)
-
-
Little Missouri River basin (1)
-
Louisiana (5)
-
Magothy Aquifer (1)
-
Maine
-
York County Maine (1)
-
-
Maryland
-
Allegany County Maryland
-
Cumberland Maryland (3)
-
-
Anne Arundel County Maryland (4)
-
Baltimore County Maryland
-
Baltimore Maryland (10)
-
-
Calvert County Maryland (25)
-
Carroll County Maryland (5)
-
Cecil County Maryland (6)
-
Charles County Maryland (9)
-
Dorchester County Maryland (3)
-
Frederick County Maryland (4)
-
Garrett County Maryland (4)
-
Harford County Maryland
-
Aberdeen Proving Ground (4)
-
-
Howard County Maryland (2)
-
Montgomery County Maryland (13)
-
Patuxent River (3)
-
Prince Georges County Maryland (16)
-
Queen Anne's County Maryland (1)
-
Saint Mary's County Maryland (9)
-
Somerset County Maryland (1)
-
Talbot County Maryland (1)
-
Washington County Maryland (12)
-
Wicomico County Maryland (4)
-
Worcester County Maryland (9)
-
-
Massachusetts
-
Barnstable County Massachusetts
-
Cape Cod (1)
-
-
Suffolk County Massachusetts
-
Boston Massachusetts (1)
-
-
-
Michigan
-
Michigan Lower Peninsula
-
Calhoun County Michigan (1)
-
-
-
Midwest (4)
-
Minnesota (2)
-
Mississippi (10)
-
Mississippi Delta (2)
-
Mississippi Embayment (1)
-
Mississippi Valley
-
Upper Mississippi Valley (1)
-
-
Missouri (4)
-
Montana
-
Silver Bow County Montana
-
Butte Montana (1)
-
-
-
Nashville Dome (1)
-
Nebraska (1)
-
Nevada
-
Elko County Nevada (1)
-
Nevada Test Site (1)
-
-
New England (5)
-
New Hampshire (1)
-
New Jersey
-
Atlantic County New Jersey
-
Atlantic City New Jersey (1)
-
-
Burlington County New Jersey (4)
-
Camden County New Jersey (1)
-
Cape May County New Jersey (2)
-
Cumberland County New Jersey (3)
-
Mercer County New Jersey (1)
-
Millville New Jersey (1)
-
Monmouth County New Jersey (3)
-
Ocean County New Jersey (1)
-
Salem County New Jersey (5)
-
Somerset County New Jersey (1)
-
-
New Madrid region (4)
-
New Mexico (3)
-
New York
-
Adirondack Mountains (1)
-
Saint Lawrence County New York
-
Balmat-Edwards mining district (1)
-
-
Westchester County New York (1)
-
-
Newark Basin (5)
-
North Carolina
-
Carteret County North Carolina (1)
-
Dare County North Carolina
-
Cape Hatteras (1)
-
-
Hertford County North Carolina (1)
-
New Hanover County North Carolina (1)
-
Pamlico Sound (1)
-
-
Ohio (37)
-
Ohio River valley (1)
-
Oklahoma (4)
-
Oregon (2)
-
Pennsylvania
-
Blair County Pennsylvania (2)
-
Cambria County Pennsylvania (2)
-
Chester County Pennsylvania (4)
-
Delaware County Pennsylvania (1)
-
Fayette County Pennsylvania (1)
-
Huntingdon County Pennsylvania (1)
-
Indiana County Pennsylvania (1)
-
Lancaster County Pennsylvania (3)
-
Mifflin County Pennsylvania (1)
-
Perry County Pennsylvania (1)
-
Somerset County Pennsylvania (2)
-
York County Pennsylvania (2)
-
-
Potomac River (16)
-
Potomac River basin (6)
-
Pulaski thrust sheet (2)
-
Rhode Island (2)
-
Rock Creek Park (1)
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Salisbury Embayment (8)
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Shenandoah Valley (10)
-
South Carolina
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Charleston County South Carolina
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Charleston South Carolina (1)
-
-
-
South Dakota
-
Hughes County South Dakota (1)
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Hyde County South Dakota (1)
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Lyman County South Dakota (1)
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Southern U.S. (1)
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Susquehanna River (3)
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Tennessee
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Loudon County Tennessee (1)
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-
Texas (7)
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Utah (3)
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Vermont (3)
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Virginia
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Accomack County Virginia (2)
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Albemarle County Virginia (7)
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Alleghany County Virginia (1)
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Arlington County Virginia (1)
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Augusta County Virginia (11)
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Bath County Virginia (2)
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Botetourt County Virginia (1)
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Buckingham County Virginia (1)
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Caroline County Virginia (2)
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Clarke County Virginia (3)
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Craig County Virginia (1)
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Culpeper County Virginia (8)
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Fairfax County Virginia (13)
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Fauquier County Virginia (7)
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Fluvanna County Virginia (1)
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Frederick County Virginia (1)
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Giles County Virginia (1)
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Goochland County Virginia (1)
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Henrico County Virginia (2)
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Highland County Virginia (5)
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King George County Virginia (4)
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King William County Virginia (1)
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Loudoun County Virginia (9)
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Louisa County Virginia (41)
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Madison County Virginia (5)
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Nelson County Virginia (3)
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New Kent County Virginia (1)
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Northampton County Virginia (4)
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Northumberland County Virginia (1)
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Orange County Virginia (5)
-
Page County Virginia (1)
-
Pamunkey River (1)
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Powhatan County Virginia (1)
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Prince William County Virginia (7)
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Pulaski County Virginia (1)
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Rappahannock County Virginia (4)
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Rappahannock River (1)
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Richmond Virginia (1)
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Roanoke County Virginia (1)
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Rockbridge County Virginia (4)
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Rockingham County Virginia (8)
-
Shenandoah County Virginia (5)
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Shenandoah National Park (1)
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Spotsylvania County Virginia (1)
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Stafford County Virginia (7)
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Tazewell County Virginia (1)
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Warren County Virginia (5)
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Waynesboro Virginia (1)
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Westmoreland County Virginia (4)
-
-
Washington
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Hanford Site (2)
-
-
West Virginia
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Berkeley County West Virginia (2)
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Grant County West Virginia (7)
-
Hampshire County West Virginia (2)
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Hardy County West Virginia (3)
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Jefferson County West Virginia (2)
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Mineral County West Virginia (3)
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Monongalia County West Virginia (1)
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Monroe County West Virginia (1)
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Morgan County West Virginia (4)
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Pendleton County West Virginia (8)
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Pocahontas County West Virginia (2)
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Preston County West Virginia (3)
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Randolph County West Virginia (1)
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Tucker County West Virginia (1)
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Upshur County West Virginia (1)
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Wayne County West Virginia (1)
-
-
Western U.S. (3)
-
Wisconsin (4)
-
Wyoming (4)
-
Yellowstone National Park (1)
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-
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commodities
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barite deposits (1)
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brines (2)
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ceramic materials (1)
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construction materials
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building stone (4)
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cement materials (1)
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dimension stone (1)
-
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energy sources (14)
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gems (1)
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glass materials (1)
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gravel deposits (1)
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heavy mineral deposits (1)
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kyanite deposits (1)
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marble deposits (2)
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metal ores
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base metals (2)
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cobalt ores (1)
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copper ores (3)
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gold ores (1)
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iron ores (2)
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lead ores (2)
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lead-zinc deposits (1)
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manganese ores (3)
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nickel ores (1)
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polymetallic ores (1)
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tin ores (1)
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titanium ores (2)
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zinc ores (4)
-
-
mineral deposits, genesis (31)
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mineral exploration (8)
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mineral resources (1)
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oil and gas fields (11)
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ornamental materials (1)
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petroleum
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natural gas
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coalbed methane (1)
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shale gas (1)
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-
-
placers (2)
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slate deposits (1)
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soapstone (1)
-
water resources (5)
-
-
elements, isotopes
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carbon
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C-13/C-12 (9)
-
C-14 (10)
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organic carbon (6)
-
-
chemical ratios (1)
-
halogens
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bromine
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bromide ion (1)
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chlorine
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chloride ion (3)
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-
-
hydrogen (1)
-
isotope ratios (18)
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isotopes
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radioactive isotopes
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Be-10 (4)
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Be-10/Be-9 (1)
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C-14 (10)
-
Cs-137 (3)
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Pb-206/Pb-204 (1)
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Pb-210 (3)
-
Rn-222 (1)
-
-
stable isotopes
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Be-10/Be-9 (1)
-
C-13/C-12 (9)
-
Hf-177/Hf-176 (1)
-
Nd-144/Nd-143 (3)
-
O-18/O-16 (10)
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Os-188/Os-187 (1)
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Pb-206/Pb-204 (1)
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S-34/S-32 (1)
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Sr-87/Sr-86 (11)
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-
-
metals
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actinides
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thorium (2)
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uranium (2)
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alkali metals
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cesium
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Cs-137 (3)
-
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potassium (2)
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sodium (1)
-
-
alkaline earth metals
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barium (1)
-
beryllium
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Be-10 (4)
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Be-10/Be-9 (1)
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calcium
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Mg/Ca (1)
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magnesium
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Mg/Ca (1)
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strontium
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Sr-87/Sr-86 (11)
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aluminum (1)
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chromium (1)
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copper (5)
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gold (1)
-
hafnium
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Hf-177/Hf-176 (1)
-
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iron
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ferric iron (2)
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lead
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Pb-206/Pb-204 (1)
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Pb-210 (3)
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manganese (4)
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mercury (1)
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niobium (1)
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platinum group
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osmium
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Os-188/Os-187 (1)
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rare earths
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neodymium
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Nd-144/Nd-143 (3)
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silver (1)
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tin (2)
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titanium (4)
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zinc (6)
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noble gases
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radon
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Rn-222 (1)
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oxygen
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dissolved oxygen (1)
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O-18/O-16 (10)
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phosphorus (2)
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sulfur
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S-34/S-32 (1)
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trace metals (2)
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fossils
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borings (7)
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burrows (4)
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Chordata
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Vertebrata
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Pisces
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Osteichthyes
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Actinopterygii
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Tetrapoda
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Amphibia
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Lissamphibia
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Aves (1)
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Mammalia
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Multituberculata (1)
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Theria
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Eutheria
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Suiformes (1)
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Rodentia (1)
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Metatheria
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Reptilia
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Diapsida
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Archosauria
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Crocodilia
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dinosaurs
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Ornithischia
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Lepidosauria
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Squamata
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Lacertilia
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Mosasauridae (2)
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-
-
-
-
-
-
-
-
Graptolithina
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Graptoloidea (2)
-
-
Hemichordata (1)
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ichnofossils
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Thalassinoides (1)
-
-
Invertebrata
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Arthropoda
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Chelicerata
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Merostomata
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Eurypterida (1)
-
-
-
Mandibulata
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Crustacea
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Branchiopoda (1)
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Cirripedia (3)
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Malacostraca
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Callianassa (1)
-
-
Ostracoda (8)
-
-
Insecta
-
Pterygota
-
Neoptera
-
Exopterygota
-
Thysanoptera (1)
-
-
-
-
-
-
Trilobitomorpha
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Trilobita
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Agnostida (2)
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Lichida (1)
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Phacopida
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Phacopina (1)
-
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Ptychopariida
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Asaphidae (1)
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Cryptolithus (1)
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Proetidae (1)
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-
-
-
-
Brachiopoda
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Articulata
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Orthida (1)
-
Rhynchonellida (1)
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Spiriferida
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Atrypidae (2)
-
-
Terebratulida (1)
-
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Inarticulata (1)
-
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Bryozoa (2)
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Cnidaria
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Anthozoa (3)
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Hydrozoa (1)
-
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Echinodermata
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Crinozoa
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Crinoidea (4)
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Cystoidea (1)
-
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Echinozoa
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Echinoidea (1)
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Edrioasteroidea (1)
-
-
-
Mollusca
-
Bivalvia
-
Heterodonta
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Veneroida
-
Astartidae
-
Astarte (3)
-
-
-
-
Ostreoidea (3)
-
Pterioida
-
Pteriina
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Pectinacea
-
Pectinidae (2)
-
-
-
-
-
Cephalopoda
-
Ammonoidea (5)
-
-
Gastropoda
-
Naticidae (4)
-
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Hyolithes (1)
-
-
Porifera
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Stromatoporoidea (2)
-
-
Protista
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Foraminifera
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Rotaliina
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Buliminacea
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Bulimina (1)
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Uvigerinidae
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Uvigerina (1)
-
-
-
Rotaliacea
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Elphidium
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Elphidium excavatum (1)
-
-
-
-
Textulariina
-
Lituolacea
-
Ammobaculites (1)
-
-
-
-
Radiolaria
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Osculosida
-
Nassellina (1)
-
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Spumellina (1)
-
-
Silicoflagellata (3)
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Thecamoeba (1)
-
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Vermes
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Annelida (1)
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scolecodonts (1)
-
-
-
microfossils
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Conodonta (7)
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scolecodonts (1)
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palynomorphs
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acritarchs (2)
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Dinoflagellata (11)
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megaspores (2)
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miospores
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pollen (7)
-
-
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Plantae
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algae
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diatoms (11)
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Epiphyton (1)
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nannofossils (2)
-
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Bryophyta
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Hepaticae (1)
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Pteridophyta
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Lycopsida (2)
-
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Spermatophyta
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Angiospermae
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Dicotyledoneae (1)
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Monocotyledoneae (1)
-
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Gymnospermae
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Coniferales
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Taxodium (1)
-
-
-
-
-
problematic fossils (1)
-
Pterobranchia (1)
-
thallophytes (5)
-
-
geochronology methods
-
(U-Th)/He (1)
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Ar/Ar (5)
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exposure age (2)
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fission-track dating (2)
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K/Ar (5)
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Nd/Nd (1)
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optically stimulated luminescence (1)
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paleomagnetism (8)
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Pb/Pb (1)
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Pb/Th (1)
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Rb/Sr (8)
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Sm/Nd (1)
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tephrochronology (1)
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thermochronology (2)
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tree rings (1)
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U/Pb (12)
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U/Th/Pb (1)
-
-
geologic age
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Cenozoic
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Quaternary
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Holocene
-
Atlantic (1)
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lower Holocene (1)
-
upper Holocene (9)
-
-
Pleistocene
-
upper Pleistocene
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Wisconsinan (3)
-
-
-
upper Quaternary (3)
-
-
Tertiary
-
Arikareean (1)
-
lower Tertiary (2)
-
Neogene
-
Cohansey Formation (1)
-
Miocene
-
Barstovian (1)
-
Calvert Formation (27)
-
lower Miocene
-
Burdigalian (1)
-
Hemingfordian (1)
-
-
middle Miocene
-
Choptank Formation (17)
-
-
Saint Marys Formation (18)
-
upper Miocene
-
Eastover Formation (6)
-
Tortonian (2)
-
-
-
Pliocene
-
upper Pliocene
-
Chowan River Formation (5)
-
-
Yorktown Formation (15)
-
-
-
Paleogene
-
Eocene
-
Castle Hayne Limestone (1)
-
Jacksonian (1)
-
lower Eocene
-
Aquia Formation (13)
-
Hatchetigbee Formation (1)
-
-
middle Eocene
-
Claiborne Group (1)
-
Cook Mountain Formation (1)
-
Lisbon Formation (2)
-
Santee Limestone (1)
-
-
Nanjemoy Formation (9)
-
upper Eocene
-
Jackson Group (1)
-
Moodys Branch Formation (2)
-
Piney Point Formation (6)
-
Yazoo Clay (1)
-
-
-
Oligocene
-
lower Oligocene (1)
-
upper Oligocene (1)
-
-
Paleocene
-
lower Paleocene
-
Danian (2)
-
K-T boundary (3)
-
-
upper Paleocene
-
Landenian (1)
-
Thanetian (2)
-
-
-
Paleocene-Eocene Thermal Maximum (3)
-
-
upper Tertiary (1)
-
-
upper Cenozoic
-
Chesapeake Group (17)
-
-
-
Coal Measures (2)
-
Laurentide ice sheet (1)
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous
-
Albian (3)
-
Aptian (4)
-
Barremian (2)
-
-
Potomac Group (10)
-
Upper Cretaceous
-
Campanian
-
upper Campanian (1)
-
-
Cenomanian
-
lower Cenomanian (2)
-
-
K-T boundary (3)
-
Maestrichtian (8)
-
Magothy Formation (2)
-
Marshalltown Formation (4)
-
Monmouth Group (1)
-
Navesink Formation (6)
-
Niobrara Formation (1)
-
Pierre Shale (1)
-
Raritan Formation (2)
-
Santonian (2)
-
Senonian (12)
-
Sharon Springs Member (1)
-
Tuolumne Intrusive Suite (1)
-
Turonian (1)
-
-
-
Jurassic
-
Lower Jurassic
-
Feltville Formation (1)
-
Hampden Basalt (1)
-
Holyoke Basalt (1)
-
Portland Formation (1)
-
Toarcian (1)
-
upper Liassic (1)
-
-
Middle Jurassic (1)
-
Upper Jurassic
-
Morrison Formation (1)
-
-
-
lower Mesozoic (2)
-
Newark Supergroup (10)
-
Triassic
-
Middle Triassic
-
Ladinian (1)
-
-
Upper Triassic
-
Carnian (5)
-
Chinle Formation (1)
-
Norian (3)
-
Rhaetian (2)
-
-
-
-
Paleozoic
-
Bedford Shale (1)
-
Berea Sandstone (2)
-
Cambrian
-
Conasauga Group (2)
-
Lower Cambrian
-
Antietam Formation (4)
-
Chilhowee Group (4)
-
Rome Formation (4)
-
Shady Dolomite (1)
-
-
Pioche Shale (1)
-
Upper Cambrian
-
Copper Ridge Dolomite (2)
-
-
-
Carboniferous
-
Mississippian
-
Logan Formation (1)
-
Lower Mississippian
-
Cuyahoga Formation (1)
-
Kinderhookian (1)
-
Osagian (1)
-
Pocono Formation (4)
-
-
Price Formation (2)
-
Sunbury Shale (1)
-
Upper Mississippian
-
Chesterian (4)
-
Greenbrier Limestone (3)
-
Hinton Formation (1)
-
Mauch Chunk Formation (2)
-
-
-
Pennsylvanian
-
Conemaugh Group (2)
-
Lower Pennsylvanian
-
Lee Formation (2)
-
New River Formation (1)
-
Pocahontas Formation (5)
-
-
Middle Pennsylvanian
-
Allegheny Group (2)
-
-
Pottsville Group (2)
-
Upper Pennsylvanian (2)
-
-
Upper Carboniferous (3)
-
-
Catskill Formation (3)
-
Devonian
-
Lower Devonian
-
Emsian (1)
-
Lochkovian (2)
-
Oriskany Sandstone (9)
-
Pragian (1)
-
-
Middle Devonian
-
Eifelian (1)
-
Hamilton Group (3)
-
Mahantango Formation (2)
-
Marcellus Shale (5)
-
Onondaga Limestone (2)
-
Tully Limestone (2)
-
-
Millboro Shale (2)
-
Upper Devonian
-
Brallier Shale (3)
-
Chemung Formation (1)
-
Cleveland Member (1)
-
Famennian (1)
-
Frasnian (1)
-
Hampshire Formation (2)
-
Huron Member (1)
-
Ohio Shale (2)
-
West Falls Formation (1)
-
-
-
Helderberg Group (4)
-
Keyser Limestone (4)
-
Knox Group (6)
-
lower Paleozoic
-
Ashe Formation (2)
-
Chopawamsic Formation (3)
-
Conococheague Formation (13)
-
Glenarm Series (8)
-
Wilmington Complex (6)
-
-
Ordovician
-
Clays Ferry Formation (1)
-
Eureka Quartzite (1)
-
Lexington Limestone (1)
-
Lower Ordovician
-
Beekmantown Group (5)
-
Kingsport Formation (1)
-
Mascot Dolomite (1)
-
-
Martinsburg Formation (6)
-
Middle Ordovician
-
Black River Group (1)
-
Blackriverian (1)
-
Bromide Formation (1)
-
Chazyan (1)
-
Deicke Bentonite Bed (2)
-
Millbrig Bentonite Bed (2)
-
Normanskill Formation (1)
-
Schenectady Formation (1)
-
-
Trenton Group (2)
-
Upper Ordovician
-
Cincinnatian (1)
-
Fairview Formation (1)
-
Juniata Formation (6)
-
Katian (2)
-
Mohawkian (1)
-
Reedsville Formation (1)
-
Sandbian (1)
-
Trentonian (5)
-
-
Utica Shale (1)
-
Viola Limestone (1)
-
-
Permian
-
Lower Permian (1)
-
-
Rondout Formation (3)
-
Silurian
-
Clinch Sandstone (1)
-
Lower Silurian
-
Llandovery (2)
-
Tuscarora Formation (7)
-
Wenlock (1)
-
-
Middle Silurian
-
Clinton Group (2)
-
Keefer Sandstone (1)
-
McKenzie Formation (2)
-
Rose Hill Formation (3)
-
-
Upper Silurian
-
Bloomsburg Formation (1)
-
Cayugan
-
Tonoloway Limestone (1)
-
-
Pridoli (1)
-
-
-
upper Paleozoic (2)
-
Wissahickon Formation (7)
-
-
Phanerozoic (4)
-
Precambrian
-
Baltimore Gneiss (10)
-
Catoctin Formation (14)
-
Eocambrian (2)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (8)
-
Neoproterozoic
-
Ediacaran (1)
-
Lynchburg Formation (3)
-
-
-
-
-
-
igneous rocks
-
igneous rocks
-
hypabyssal rocks (1)
-
plutonic rocks
-
anorthosite (2)
-
diabase (5)
-
diorites
-
quartz diorites (1)
-
-
gabbros
-
norite (1)
-
-
granites
-
A-type granites (1)
-
charnockite (1)
-
-
granodiorites (2)
-
pegmatite (4)
-
quartz monzonite (1)
-
ultramafics
-
chromitite (1)
-
peridotites
-
dunite (1)
-
lherzolite (1)
-
-
pyroxenite
-
websterite (1)
-
-
-
-
volcanic rocks
-
adakites (1)
-
andesites (2)
-
basalts
-
mid-ocean ridge basalts (1)
-
olivine basalt (1)
-
tholeiite (1)
-
-
pyroclastics
-
tuff (1)
-
-
rhyolites (1)
-
-
-
ophiolite (3)
-
volcanic ash (4)
-
-
metamorphic rocks
-
K-bentonite (3)
-
metamorphic rocks
-
amphibolites (1)
-
cataclasites (1)
-
gneisses
-
augen gneiss (2)
-
biotite gneiss (1)
-
orthogneiss (1)
-
-
granulites (2)
-
impactites
-
impact breccia (1)
-
-
marbles (6)
-
metaigneous rocks
-
metabasalt (2)
-
metagabbro (2)
-
metagranite (2)
-
serpentinite (3)
-
-
metaplutonic rocks (1)
-
metasedimentary rocks
-
metapelite (2)
-
metasandstone (1)
-
-
metasomatic rocks
-
greisen (1)
-
serpentinite (3)
-
-
metavolcanic rocks (5)
-
migmatites (1)
-
mylonites
-
pseudotachylite (1)
-
-
phyllites (4)
-
quartzites (4)
-
schists
-
greenstone (1)
-
-
slates (3)
-
-
ophiolite (3)
-
turbidite (3)
-
-
meteorites
-
meteorites
-
stony meteorites
-
achondrites (1)
-
chondrites
-
ordinary chondrites (1)
-
-
-
-
-
minerals
-
alloys
-
electrum (1)
-
-
carbonates
-
ankerite (1)
-
aragonite (1)
-
bastnaesite (1)
-
calcite (4)
-
dolomite (9)
-
pyroaurite (1)
-
sphaerosiderite (1)
-
strontianite (1)
-
-
halides
-
fluorides
-
bastnaesite (1)
-
-
-
K-bentonite (3)
-
minerals (15)
-
native elements
-
graphite (2)
-
-
oxides
-
anatase (1)
-
chromite (3)
-
cryptomelane (1)
-
gahnite (2)
-
goethite (2)
-
hematite (4)
-
hoegbomite (2)
-
hollandite (1)
-
hydroxides
-
iron hydroxides (1)
-
-
ilmenite (3)
-
iron oxides (3)
-
magnetite (1)
-
manganese oxides (1)
-
martite (1)
-
rutile (4)
-
spinel (1)
-
-
phosphates
-
apatite (6)
-
brushite (1)
-
cacoxenite (1)
-
monazite (2)
-
rhabdophane (1)
-
vivianite (4)
-
wavellite (1)
-
-
silicates
-
asbestos (2)
-
chain silicates
-
amphibole group
-
clinoamphibole
-
hornblende (2)
-
tremolite (1)
-
-
-
pyroxene group
-
clinopyroxene
-
clinoenstatite (1)
-
diopside (1)
-
-
orthopyroxene
-
hypersthene (2)
-
-
-
rhodonite group
-
babingtonite (1)
-
-
xonotlite (1)
-
-
framework silicates
-
feldspar group
-
plagioclase (1)
-
-
silica minerals
-
cristobalite (1)
-
quartz (4)
-
tridymite (1)
-
-
zeolite group
-
epistilbite (1)
-
stilbite (2)
-
-
-
orthosilicates
-
nesosilicates
-
chloritoid (1)
-
garnet group (1)
-
kyanite (3)
-
olivine group
-
fayalite (1)
-
laihunite (1)
-
-
phenakite group
-
phenakite (1)
-
-
staurolite (4)
-
titanite group
-
titanite (1)
-
-
zircon group
-
zircon (15)
-
-
-
sorosilicates
-
epidote group
-
allanite (2)
-
epidote (1)
-
-
-
-
ring silicates
-
tourmaline group (1)
-
-
sheet silicates
-
chlorite group
-
chlorite (5)
-
-
clay minerals
-
kaolinite (2)
-
smectite (1)
-
vermiculite (1)
-
-
illite (2)
-
margarite (1)
-
mica group
-
biotite (1)
-
glauconite (6)
-
muscovite (3)
-
-
serpentine group
-
berthierine (1)
-
-
talc (3)
-
-
-
sulfates
-
barite (2)
-
gypsum (1)
-
-
sulfides
-
bornite (1)
-
iron sulfides (1)
-
pyrite (3)
-
pyrrhotite (1)
-
sphalerite (1)
-
-
sulfosalts
-
sulfantimonites
-
tetrahedrite (1)
-
-
sulfarsenites
-
tennantite (1)
-
-
-
-
Primary terms
-
absolute age (43)
-
Africa
-
North Africa
-
Morocco (1)
-
-
West Africa
-
Nigeria
-
Niger Delta (1)
-
-
-
-
Antarctica
-
Antarctic ice sheet
-
East Antarctic ice sheet (1)
-
-
-
Arctic Ocean
-
Mendeleyev Ridge (1)
-
-
Asia
-
Central Asia
-
Kazakhstan (1)
-
-
Far East
-
China (2)
-
Indonesia
-
Java (1)
-
-
Japan (1)
-
-
Indian Peninsula
-
India (2)
-
Kohistan (1)
-
Pakistan (1)
-
-
Middle East
-
Zagros (1)
-
-
Popigay Structure (2)
-
-
asteroids (1)
-
Atlantic Ocean
-
North Atlantic
-
Baltimore Canyon (1)
-
Baltimore Canyon Trough (2)
-
Bay of Biscay (1)
-
Georges Bank (2)
-
Great Meteor Seamount (1)
-
Gulf of Mexico (4)
-
Long Island Sound (1)
-
Northwest Atlantic (7)
-
Wilmington Canyon (3)
-
-
-
Atlantic region (2)
-
atmosphere (2)
-
Australasia
-
Australia (3)
-
New Zealand
-
Otago New Zealand
-
Oamaru New Zealand (1)
-
-
-
-
barite deposits (1)
-
bibliography (6)
-
biogeography (8)
-
biography (1)
-
brines (2)
-
Canada
-
Arctic Archipelago (1)
-
Eastern Canada
-
Maritime Provinces
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New Brunswick (2)
-
Nova Scotia
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Minas Basin (1)
-
-
-
Newfoundland and Labrador
-
Newfoundland (3)
-
-
Ontario
-
Ottawa Ontario (1)
-
Simcoe County Ontario
-
Borden Ontario (1)
-
-
-
Quebec
-
Charlevoix (1)
-
Gaspe-Est County Quebec
-
Gaspe Quebec (1)
-
-
Gatineau Valley (1)
-
Montreal and Jesus Islands County Quebec
-
Montreal Quebec (1)
-
-
-
-
Mackenzie Mountains (2)
-
Western Canada
-
Alberta (3)
-
British Columbia (4)
-
Canadian Rocky Mountains (3)
-
Northwest Territories (2)
-
Yukon Territory (1)
-
-
-
carbon
-
C-13/C-12 (9)
-
C-14 (10)
-
organic carbon (6)
-
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
-
Puerto Rico (2)
-
-
Lesser Antilles
-
Barbados (1)
-
Virgin Islands (2)
-
-
-
Bahamas (1)
-
-
-
Cenozoic
-
Quaternary
-
Holocene
-
Atlantic (1)
-
lower Holocene (1)
-
upper Holocene (9)
-
-
Pleistocene
-
upper Pleistocene
-
Wisconsinan (3)
-
-
-
upper Quaternary (3)
-
-
Tertiary
-
Arikareean (1)
-
lower Tertiary (2)
-
Neogene
-
Cohansey Formation (1)
-
Miocene
-
Barstovian (1)
-
Calvert Formation (27)
-
lower Miocene
-
Burdigalian (1)
-
Hemingfordian (1)
-
-
middle Miocene
-
Choptank Formation (17)
-
-
Saint Marys Formation (18)
-
upper Miocene
-
Eastover Formation (6)
-
Tortonian (2)
-
-
-
Pliocene
-
upper Pliocene
-
Chowan River Formation (5)
-
-
Yorktown Formation (15)
-
-
-
Paleogene
-
Eocene
-
Castle Hayne Limestone (1)
-
Jacksonian (1)
-
lower Eocene
-
Aquia Formation (13)
-
Hatchetigbee Formation (1)
-
-
middle Eocene
-
Claiborne Group (1)
-
Cook Mountain Formation (1)
-
Lisbon Formation (2)
-
Santee Limestone (1)
-
-
Nanjemoy Formation (9)
-
upper Eocene
-
Jackson Group (1)
-
Moodys Branch Formation (2)
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