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all geography including DSDP/ODP Sites and Legs
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Africa
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East Africa
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Mozambique (1)
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Madagascar (1)
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Egypt
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Southern Africa
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Western Europe
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Scandinavia
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United States
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Georgia
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Indiana (1)
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Iowa
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Kansas
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Kentucky (3)
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Massachusetts
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Middle Atlantic Bight (1)
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Mississippi
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Tippah County Mississippi (1)
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Mississippi Valley (2)
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Missouri
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Nevada
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New England (2)
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New Hampshire
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Cheshire County New Hampshire (1)
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New Jersey
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Somerset County New Jersey (1)
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Sussex County New Jersey
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Sterling Hill (1)
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New Madrid region (1)
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New Mexico (2)
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New York
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Broome County New York
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Binghamton New York (1)
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Suffolk County New York (3)
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North Carolina
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Albemarle Sound (2)
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Anson County North Carolina (1)
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Beaufort County North Carolina
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Lee Creek Mine (4)
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Bertie County North Carolina (3)
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Bladen County North Carolina (3)
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Brunswick County North Carolina (4)
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Carteret County North Carolina
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Beaufort North Carolina (6)
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Chatham County North Carolina (3)
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Columbus County North Carolina (1)
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Craven County North Carolina (4)
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Cumberland County North Carolina (1)
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Currituck County North Carolina (2)
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Dare County North Carolina
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Cape Hatteras (18)
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Duplin County North Carolina (3)
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Durham County North Carolina (4)
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Franklin County North Carolina (1)
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Granville County North Carolina (3)
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Greene County North Carolina (1)
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Halifax County North Carolina (2)
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Harnett County North Carolina (1)
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Hertford County North Carolina (2)
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Hyde County North Carolina (2)
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Jones County North Carolina (1)
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Lee County North Carolina (1)
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Lenoir County North Carolina (3)
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Macon County North Carolina (1)
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Montgomery County North Carolina (3)
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Moore County North Carolina (3)
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Nash County North Carolina (1)
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Neuse River (2)
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New Hanover County North Carolina
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Castle Hayne North Carolina (5)
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Wilmington North Carolina (3)
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Onslow Bay (14)
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Onslow County North Carolina (8)
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Orange County North Carolina (4)
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Pamlico River (2)
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Pamlico Sound (10)
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Pender County North Carolina (5)
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Person County North Carolina (2)
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Pitt County North Carolina (2)
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Randolph County North Carolina (5)
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Robeson County North Carolina (4)
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Rockingham County North Carolina (1)
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Stanly County North Carolina (2)
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Surry County North Carolina (1)
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Union County North Carolina (1)
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Vance County North Carolina (4)
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Wake County North Carolina (8)
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Wayne County North Carolina (1)
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Ohio
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Salisbury Embayment (2)
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Aiken County South Carolina
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Aiken South Carolina (2)
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Clarendon County South Carolina (2)
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Darlington County South Carolina (2)
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Florence County South Carolina (3)
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Horry County South Carolina (5)
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Lexington County South Carolina (1)
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Marion County South Carolina (4)
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Saluda County South Carolina (1)
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Sumter County South Carolina (1)
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Williamsburg County South Carolina (1)
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Southern U.S. (2)
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Susquehanna River (2)
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Tennessee
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Humphreys County Tennessee (1)
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Polk County Tennessee
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Ducktown Tennessee (2)
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-
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Texas
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Galveston County Texas
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Galveston Texas (1)
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Kaufman County Texas (1)
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U. S. Rocky Mountains
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Utah
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Virginia
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Amelia County Virginia (10)
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Bedford County Virginia (3)
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Patrick County Virginia (1)
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commodities
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chemical ratios (1)
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chlorine
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fluorine (1)
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hydrogen
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deuterium (2)
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isotope ratios (20)
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stable isotopes
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deuterium (2)
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O-18/O-16 (17)
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metals
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bismuth (1)
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iron
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lead
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manganese (2)
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nickel (1)
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platinum group
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osmium
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precious metals (1)
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rare earths
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neodymium
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Nd-144/Nd-143 (1)
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Sm-147/Nd-144 (1)
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samarium
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Sm-147/Nd-144 (1)
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silver (1)
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nitrogen (1)
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helium (1)
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neon
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radon (1)
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oxygen
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O-18/O-16 (17)
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selenium (1)
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fossils
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Tetrapoda
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Mammalia
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Reptilia
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Insecta
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Pteridophyta (1)
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-
problematic fossils
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problematic microfossils (1)
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-
thallophytes (6)
-
-
geochronology methods
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Ar/Ar (3)
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fission-track dating (1)
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K/Ar (2)
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paleomagnetism (6)
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Pb/Th (1)
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Rb/Sr (12)
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sclerochronology (1)
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Sr/Sr (1)
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thermoluminescence (1)
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U/Pb (15)
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U/Th/Pb (3)
-
-
geologic age
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Cenozoic
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Quaternary
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Holocene
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Atlantic (1)
-
upper Holocene (8)
-
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Pleistocene
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Aftonian (1)
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lower Pleistocene
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Gelasian (1)
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Waccamaw Formation (2)
-
-
Old Crow Tephra (1)
-
upper Pleistocene
-
Sangamonian (2)
-
Wisconsinan (2)
-
-
-
upper Quaternary (5)
-
-
Tertiary
-
Neogene
-
Miocene
-
Calvert Formation (6)
-
lower Miocene
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Burdigalian (2)
-
Chipola Formation (1)
-
-
middle Miocene
-
Choptank Formation (4)
-
-
Pungo River Formation (9)
-
Saint Marys Formation (7)
-
upper Miocene
-
Duplin Formation (2)
-
Eastover Formation (6)
-
Santa Margarita Formation (1)
-
-
-
Pliocene
-
middle Pliocene (1)
-
upper Pliocene
-
Chowan River Formation (6)
-
Piacenzian (1)
-
-
Yorktown Formation (17)
-
-
-
Paleogene
-
Eocene
-
Castle Hayne Limestone (14)
-
Jacksonian (1)
-
lower Eocene
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Ypresian (1)
-
-
middle Eocene
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Bartonian (1)
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Lutetian (2)
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Santee Limestone (1)
-
-
upper Eocene
-
Dry Branch Formation (1)
-
Priabonian (2)
-
-
-
Oligocene
-
lower Oligocene
-
Rupelian (1)
-
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middle Oligocene
-
Byram Formation (1)
-
-
upper Oligocene
-
Chattian (1)
-
-
-
Paleocene
-
lower Paleocene
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Danian (1)
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K-T boundary (1)
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-
upper Paleocene
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Thanetian (1)
-
-
-
Wilcox Group (1)
-
-
-
upper Cenozoic
-
Chesapeake Group (1)
-
Tamiami Formation (1)
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-
-
Laurentide ice sheet (1)
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Mesozoic
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Carrara Marble (1)
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Cretaceous
-
Lower Cretaceous
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Albian (1)
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Aptian (1)
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Middle Cretaceous (1)
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Potomac Group (3)
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Upper Cretaceous
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Blackhawk Formation (1)
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Campanian
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Dinosaur Park Formation (1)
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Cenomanian (1)
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Judith River Formation (1)
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K-T boundary (1)
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Maestrichtian (2)
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Middendorf Formation (1)
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Peedee Formation (6)
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Ripley Formation (1)
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Senonian (3)
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Tuscaloosa Formation (1)
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-
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Jurassic
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Lower Jurassic
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Triassic-Jurassic boundary (1)
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-
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lower Mesozoic (1)
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Newark Supergroup (4)
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Triassic
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Lower Triassic (1)
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Upper Triassic
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Carnian (2)
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Norian (4)
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Triassic-Jurassic boundary (1)
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-
-
-
Paleozoic
-
Cambrian
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Lower Cambrian
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Chilhowee Group (1)
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Murphy Marble (1)
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-
-
Carboniferous
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Lower Carboniferous
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Dinantian (1)
-
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Mississippian
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Upper Mississippian
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Meramecian (1)
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-
-
Pennsylvanian
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Middle Pennsylvanian
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Allegheny Group (1)
-
-
Upper Pennsylvanian (1)
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-
-
Devonian (3)
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lower Paleozoic
-
Ashe Formation (4)
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Chopawamsic Formation (1)
-
-
middle Paleozoic
-
Hillabee Chlorite Schist (1)
-
-
Ordovician
-
Middle Ordovician (1)
-
-
Permian
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Upper Permian (2)
-
-
Petersburg Granite (2)
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Silurian (2)
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Talladega Group (1)
-
upper Paleozoic (4)
-
-
Phanerozoic (2)
-
Precambrian
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Archean
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Neoarchean (1)
-
-
Catoctin Formation (1)
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Eocambrian (1)
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Great Smoky Group (3)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (3)
-
Neoproterozoic
-
Ediacaran (2)
-
Lynchburg Formation (2)
-
Vendian (2)
-
Walden Creek Group (2)
-
-
Paleoproterozoic (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
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plutonic rocks
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anorthosite (1)
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diabase (7)
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diorites
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quartz diorites (1)
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tonalite (1)
-
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gabbros (3)
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granites
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aplite (1)
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monzogranite (1)
-
-
granodiorites (3)
-
lamproite (1)
-
lamprophyres
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minette (2)
-
-
pegmatite (14)
-
syenites (1)
-
ultramafics
-
chromitite (1)
-
peridotites
-
dunite (2)
-
-
-
-
volcanic rocks
-
basalts
-
mid-ocean ridge basalts (1)
-
-
glasses (3)
-
komatiite (1)
-
pyroclastics
-
tuff (1)
-
-
rhyolites (1)
-
-
-
ophiolite (2)
-
volcanic ash (1)
-
-
metamorphic rocks
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metamorphic rocks
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amphibolites (5)
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cataclasites (1)
-
gneisses
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biotite gneiss (1)
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orthogneiss (2)
-
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granulites (1)
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impactites
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impact breccia
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suevite (8)
-
-
-
marbles (2)
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metaigneous rocks
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metagabbro (1)
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metagranite (3)
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metaperidotite (1)
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serpentinite (1)
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metaplutonic rocks (1)
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metasedimentary rocks
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meta-arkose (1)
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metapelite (1)
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metasomatic rocks
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serpentinite (1)
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skarn (1)
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metavolcanic rocks (8)
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migmatites (1)
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mylonites
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ultramylonite (1)
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quartzites
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ferruginous quartzite (1)
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-
schists
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greenstone (1)
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-
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ophiolite (2)
-
-
meteorites
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meteorites
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stony meteorites
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achondrites
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eucrite
-
Moore County Meteorite (1)
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-
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chondrites
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ordinary chondrites (1)
-
-
-
-
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minerals
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alloys
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electrum (1)
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carbonates
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aragonite (1)
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calcite (2)
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cerussite (1)
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dolomite (1)
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magnesite (1)
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siderite (1)
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-
halides
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chlorides (1)
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fluorides
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topaz (1)
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-
-
manganese minerals (2)
-
minerals (33)
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oxides
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anatase (1)
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boehmite (1)
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cassiterite (1)
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chromite (1)
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corundum (3)
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gahnite (1)
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gibbsite (1)
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goethite (1)
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hematite (1)
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hoegbomite (2)
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hollandite (1)
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hydroxides
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iron hydroxides (1)
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oxyhydroxides (1)
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ilmenite (1)
-
iron oxides (2)
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jacobsite (1)
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lithiophorite (1)
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magnetite (1)
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manganese oxides (2)
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manganosite (1)
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niobates (1)
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psilomelane (1)
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rutile (1)
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spinel (2)
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tantalates
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tantalite (1)
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uraninite (1)
-
-
phosphates
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apatite (2)
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francolite (2)
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monazite (7)
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rhabdophane (1)
-
-
silicates
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aluminosilicates (1)
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asbestos (1)
-
chain silicates
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amphibole group
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clinoamphibole
-
hornblende (2)
-
-
orthoamphibole
-
anthophyllite (1)
-
gedrite (2)
-
-
-
pyroxene group
-
clinopyroxene
-
augite (1)
-
diopside (1)
-
pigeonite (1)
-
spodumene (1)
-
-
orthopyroxene
-
enstatite (1)
-
-
-
-
framework silicates
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feldspar group
-
plagioclase
-
albite (4)
-
anorthite (1)
-
-
-
silica minerals
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cristobalite (1)
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opal (1)
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quartz (7)
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tridymite (1)
-
-
zeolite group
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heulandite (1)
-
-
-
hyalite (1)
-
orthosilicates
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nesosilicates
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andalusite (1)
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chloritoid (2)
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garnet group
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almandine (1)
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grossular (1)
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pyrope (1)
-
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kyanite (2)
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olivine group
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olivine (2)
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-
phenakite group
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eucryptite (1)
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staurolite (2)
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titanite group
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titanite (1)
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-
topaz (1)
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zircon group
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zircon (12)
-
-
-
sorosilicates
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epidote group
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allanite (1)
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zoisite (1)
-
-
-
-
ring silicates
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beryl (1)
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cordierite (1)
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emerald (1)
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tourmaline group (2)
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sheet silicates
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chlorite group
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chlorite (3)
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clay minerals
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kaolinite (4)
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montmorillonite (2)
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smectite (1)
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vermiculite (2)
-
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corrensite (1)
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hydromica (1)
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illite (4)
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margarite (1)
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mica group
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biotite (6)
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glauconite (8)
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muscovite (1)
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paragonite (1)
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phlogopite (2)
-
-
pyrophyllite (4)
-
serpentine group
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chrysotile (1)
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talc (3)
-
-
-
sulfates
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bassanite (1)
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jarosite (1)
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sulfides
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pyrite (4)
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pyrrhotite (1)
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sphalerite (1)
-
-
sulfosalts
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sulfantimonites
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kobellite (1)
-
-
-
-
Primary terms
-
absolute age (42)
-
Africa
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East Africa
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Mozambique (1)
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Zambia (1)
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Madagascar (1)
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North Africa
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Egypt
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Tunisia (1)
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Southern Africa
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Zimbabwe (1)
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West Africa
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Ivory Coast (1)
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Asia
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Kazakhstan (1)
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Far East
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China
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Yunnan China (1)
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Indian Peninsula
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Afghanistan (1)
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India (2)
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Pakistan (1)
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Popigay Structure (3)
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asteroids (2)
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Atlantic Ocean
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Mid-Atlantic Ridge (1)
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North Atlantic
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Baltimore Canyon (2)
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Baltimore Canyon Trough (2)
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Blake Plateau (2)
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Georges Bank (3)
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Gulf of Mexico (1)
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Hatteras abyssal plain (1)
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Northeast Atlantic
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Iberian abyssal plain (1)
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-
Northwest Atlantic (9)
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Scotian Shelf (1)
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Wilmington Canyon (1)
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-
-
Atlantic Ocean Islands
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Bermuda (1)
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-
atmosphere (1)
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Australasia
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Australia (1)
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New Zealand (1)
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bacteria (4)
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barite deposits (1)
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bibliography (1)
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biogeography (4)
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Canada
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Eastern Canada
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Newfoundland and Labrador
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Newfoundland (1)
-
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Ontario (2)
-
-
Nunavut
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Haughton impact structure (1)
-
-
Western Canada
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British Columbia (2)
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Northwest Territories (1)
-
Yukon Territory (1)
-
-
-
carbon
-
C-13/C-12 (11)
-
C-14 (9)
-
organic carbon (2)
-
-
Caribbean region
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West Indies
-
Bahamas (4)
-
-
-
catalogs (1)
-
Cenozoic
-
Quaternary
-
Holocene
-
Atlantic (1)
-
upper Holocene (8)
-
-
Pleistocene
-
Aftonian (1)
-
lower Pleistocene
-
Gelasian (1)
-
Waccamaw Formation (2)
-
-
Old Crow Tephra (1)
-
upper Pleistocene
-
Sangamonian (2)
-
Wisconsinan (2)
-
-
-
upper Quaternary (5)
-
-
Tertiary
-
Neogene
-
Miocene
-
Calvert Formation (6)
-
lower Miocene
-
Burdigalian (2)
-
Chipola Formation (1)
-
-
middle Miocene
-
Choptank Formation (4)
-
-
Pungo River Formation (9)
-
Saint Marys Formation (7)
-
upper Miocene
-
Duplin Formation (2)
-
Eastover Formation (6)
-
Santa Margarita Formation (1)
-
-
-
Pliocene
-
middle Pliocene (1)
-
upper Pliocene
-
Chowan River Formation (6)
-
Piacenzian (1)
-
-
Yorktown Formation (17)
-
-
-
Paleogene
-
Eocene
-
Castle Hayne Limestone (14)
-
Jacksonian (1)
-
lower Eocene
-
Ypresian (1)
-
-
middle Eocene
-
Bartonian (1)
-
Lutetian (2)
-
Santee Limestone (1)
-
-
upper Eocene
-
Dry Branch Formation (1)
-
Priabonian (2)
-
-
-
Oligocene
-
lower Oligocene
-
Rupelian (1)
-
-
middle Oligocene
-
Byram Formation (1)
-
-
upper Oligocene
-
Chattian (1)
-
-
-
Paleocene
-
lower Paleocene
-
Danian (1)
-
K-T boundary (1)
-
-
upper Paleocene
-
Thanetian (1)
-
-
-
Wilcox Group (1)
-
-
-
upper Cenozoic
-
Chesapeake Group (1)
-
Tamiami Formation (1)
-
-
-
chemical analysis (1)
-
Chordata
-
Vertebrata
-
Pisces
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Chondrichthyes
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Elasmobranchii (1)
-
-
Osteichthyes (1)
-
-
Tetrapoda
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Amphibia (1)
-
Mammalia
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Theria
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Eutheria
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Cetacea
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Archaeoceti (1)
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Mysticeti (1)
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Odontoceti (1)
-
-
-
-
-
Reptilia
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Anapsida
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Testudines
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Chelonia (1)
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Cryptodira (1)
-
-
-
Diapsida
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Archosauria
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Thecodontia
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Aetosauria (1)
-
-
-
Lepidosauria
-
Rhynchocephalia (1)
-
-
-
-
-
-
-
clay mineralogy (12)
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climate change (2)
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conservation (1)
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construction materials
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crushed stone (1)
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dimension stone (1)
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continental drift (2)
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continental shelf (38)
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continental slope (10)
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coprolites (2)
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crust (12)
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crystal chemistry (11)
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crystal growth (6)
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crystal structure (14)
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crystallography (2)
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dams (2)
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data processing (11)
-
Deep Sea Drilling Project
-
IPOD
-
Leg 95
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DSDP Site 612 (1)
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deformation (18)
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diagenesis (14)
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earthquakes (21)
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ecology (12)
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economic geology (50)
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education (1)
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electron microscopy (2)
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energy sources (5)
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environmental geology (3)
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Europe
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Alps
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Mont Blanc (1)
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Savoy Alps (1)
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Central Europe
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Austria (2)
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Czech Republic
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Germany
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Bavaria Germany (1)
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Southern Europe
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Iberian Peninsula
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Spain (1)
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Italy (1)
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Ukraine
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Boltyshka Depression (1)
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Western Europe
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France
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Central Massif (1)
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Haute-Savoie France
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Savoy Alps (1)
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Rochechouart Crater (1)
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Scandinavia
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Denmark (1)
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Norway (1)
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United Kingdom
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Great Britain
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England
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Devon England
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Dartmoor (1)
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Scotland (1)
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Wales (1)
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-
-
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explosions (1)
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faults (40)
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folds (12)
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foliation (9)
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gems (2)
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geochemistry (31)
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geochronology (18)
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geomorphology (41)
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geophysical methods (53)
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geothermal energy (1)
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government agencies
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survey organizations (1)
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ground water (28)
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heat flow (6)
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heavy mineral deposits (2)
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hydrogen
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D/H (2)
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deuterium (2)
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hydrogeology (2)
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hydrology (8)
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ichnofossils (8)
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igneous rocks
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plutonic rocks
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anorthosite (1)
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diabase (7)
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diorites
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quartz diorites (1)
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tonalite (1)
-
-
gabbros (3)
-
granites
-
aplite (1)
-
monzogranite (1)
-
-
granodiorites (3)
-
lamproite (1)
-
lamprophyres
-
minette (2)
-
-
pegmatite (14)
-
syenites (1)
-
ultramafics
-
chromitite (1)
-
peridotites
-
dunite (2)
-
-
-
-
volcanic rocks
-
basalts
-
mid-ocean ridge basalts (1)
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-
glasses (3)
-
komatiite (1)
-
pyroclastics
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tuff (1)
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rhyolites (1)
-
-
-
inclusions
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fluid inclusions (4)
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Indian Ocean Islands
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Madagascar (1)
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industrial minerals (1)
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interplanetary space (1)
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intrusions (23)
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Invertebrata
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Arthropoda
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Mandibulata
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Crustacea
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Cirripedia (3)
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Malacostraca
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Callianassa (1)
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Ostracoda
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Myodocopida
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Myodocopina (1)
-
-
-
-
Insecta
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Pterygota
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Neoptera
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Exopterygota
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Orthoptera (1)
-
-
-
-
-
-
Trilobitomorpha
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Trilobita (1)
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-
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Bryozoa (5)
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Cnidaria
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Anthozoa
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Zoantharia
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Actiniaria (1)
-
-
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Scyphozoa
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Conulariida (1)
-
-
-
Echinodermata
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Asterozoa
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Stelleroidea
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Asteroidea (1)
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-
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Crinozoa (1)
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Echinozoa
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Echinoidea (5)
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-
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Mollusca
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Bivalvia
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Glycymeris (1)
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Heterodonta
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Rudistae (1)
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Veneroida
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Astartidae
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Astarte (1)
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Carditidae (1)
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Veneridae
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Chione (3)
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Mercenaria (5)
-
-
-
-
Ostreoidea
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Ostreidae
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Crassostrea
-
Crassostrea virginica (7)
-
-
-
-
Pterioida
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Pteriina
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Pectinacea
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Pectinidae (1)
-
-
-
-
-
Cephalopoda
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Coleoidea (1)
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Nautiloidea
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Aturia (1)
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-
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Gastropoda
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Naticidae (2)
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Neogastropoda
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Muricidae (1)
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Turritellidae
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Turritella (1)
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Porifera (2)
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Protista
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Foraminifera
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Miliolina
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Miliolacea
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Quinqueloculina (1)
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Rotaliina
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Buliminacea
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Uvigerinidae
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Uvigerina (1)
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Globigerinacea
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Globigerinidae
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Globigerina (1)
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Nodosariacea
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Nodosariidae
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Lenticulina (1)
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Orbitoidacea
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Cibicides (1)
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Textulariina (1)
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Radiolaria (1)
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isostasy (2)
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isotopes
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radioactive isotopes
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C-14 (9)
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Cs-137 (3)
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Pb-210 (4)
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Sm-147/Nd-144 (1)
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stable isotopes
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Ar-40/Ar-36 (1)
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C-13/C-12 (11)
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D/H (2)
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deuterium (2)
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Nd-144/Nd-143 (1)
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Ne-22/Ne-20 (1)
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O-18/O-16 (17)
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Os-188/Os-187 (1)
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S-34/S-32 (3)
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Sm-147/Nd-144 (1)
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Sr-87/Sr-86 (3)
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kaolin deposits (1)
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land use (6)
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lineation (1)
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magmas (6)
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mantle (1)
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maps (13)
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marine geology (12)
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marine installations (2)
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Mesozoic
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Carrara Marble (1)
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Cretaceous
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Lower Cretaceous
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Albian (1)
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Aptian (1)
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Middle Cretaceous (1)
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Potomac Group (3)
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Upper Cretaceous
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Blackhawk Formation (1)
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Campanian
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Dinosaur Park Formation (1)
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Cenomanian (1)
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Judith River Formation (1)
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K-T boundary (1)
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Maestrichtian (2)
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Middendorf Formation (1)
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Peedee Formation (6)
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Ripley Formation (1)
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Senonian (3)
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Tuscaloosa Formation (1)
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Jurassic
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Lower Jurassic
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Triassic-Jurassic boundary (1)
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lower Mesozoic (1)
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Newark Supergroup (4)
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Triassic
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Lower Triassic (1)
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Upper Triassic
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Carnian (2)
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Norian (4)
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Triassic-Jurassic boundary (1)
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metal ores
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base metals (3)
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copper ores (3)
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gold ores (6)
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iron ores (2)
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manganese ores (1)
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mercury ores (1)
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molybdenum ores (1)
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polymetallic ores (2)
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strontium ores (1)
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tungsten ores (5)
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uranium ores (3)
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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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rubidium (1)
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sodium (1)
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alkaline earth metals
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beryllium (2)
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strontium
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Sr-87/Sr-86 (3)
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bismuth (1)
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chromium (1)
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copper (8)
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gold (1)
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iron
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ferric iron (1)
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lead
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Pb-210 (4)
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manganese (2)
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mercury (1)
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molybdenum (1)
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nickel (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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precious metals (1)
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rare earths
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neodymium
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Nd-144/Nd-143 (1)
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Sm-147/Nd-144 (1)
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samarium
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Sm-147/Nd-144 (1)
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terbium (1)
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yttrium (1)
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silver (1)
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tin (2)
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tungsten (1)
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vanadium (1)
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zinc (1)
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zirconium (1)
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metamorphic rocks
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amphibolites (5)
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cataclasites (1)
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gneisses
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biotite gneiss (1)
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orthogneiss (2)
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granulites (1)
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impactites
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impact breccia
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suevite (8)
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marbles (2)
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metaigneous rocks
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metagabbro (1)
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metagranite (3)
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metaperidotite (1)
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serpentinite (1)
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metaplutonic rocks (1)
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metasedimentary rocks
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meta-arkose (1)
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metapelite (1)
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metasomatic rocks
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serpentinite (1)
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skarn (1)
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metavolcanic rocks (8)
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migmatites (1)
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mylonites
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ultramylonite (1)
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quartzites
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ferruginous quartzite (1)
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schists
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greenstone (1)
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metamorphism (38)
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metasomatism (20)
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meteorites
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stony meteorites
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achondrites
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eucrite
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Moore County Meteorite (1)
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chondrites
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ordinary chondrites (1)
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Mexico
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Baja California (1)
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mineral deposits, genesis (32)
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mineral exploration (7)
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mineral resources (4)
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mineralogy (51)
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minerals (33)
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nitrogen (1)
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noble gases
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argon
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Ar-40/Ar-36 (1)
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helium (1)
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krypton (1)
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neon
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Ne-22/Ne-20 (1)
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radon (1)
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North America
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Appalachian Basin (4)
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Appalachians
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Blue Ridge Mountains (6)
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Blue Ridge Province (14)
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Carolina slate belt (15)
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Central Appalachians (5)
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Cumberland Plateau (1)
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Piedmont (43)
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Southern Appalachians (22)
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Valley and Ridge Province (3)
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Eastern Overthrust Belt (2)
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Grenville Front (1)
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Gulf Coastal Plain (4)
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Rocky Mountains
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U. S. Rocky Mountains
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Wind River Range (1)
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nuclear facilities (1)
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ocean floors (2)
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ocean waves (1)
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oceanography (23)
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oil and gas fields (2)
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orogeny (11)
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oxygen
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O-18/O-16 (17)
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paleoclimatology (11)
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paleoecology (30)
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paleogeography (8)
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paleomagnetism (6)
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paleontology (42)
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Paleozoic
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Cambrian
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Lower Cambrian
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Chilhowee Group (1)
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Murphy Marble (1)
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Carboniferous
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Lower Carboniferous
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Dinantian (1)
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Mississippian
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Upper Mississippian
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Meramecian (1)
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Pennsylvanian
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Middle Pennsylvanian
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Allegheny Group (1)
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Upper Pennsylvanian (1)
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Devonian (3)
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lower Paleozoic
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Ashe Formation (4)
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Chopawamsic Formation (1)
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middle Paleozoic
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Hillabee Chlorite Schist (1)
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Ordovician
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Middle Ordovician (1)
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Permian
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Upper Permian (2)
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Petersburg Granite (2)
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Silurian (2)
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Talladega Group (1)
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upper Paleozoic (4)
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palynomorphs
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acritarchs (1)
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Dinoflagellata (5)
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miospores
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pollen (2)
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paragenesis (4)
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petroleum
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natural gas (12)
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petrology (34)
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Phanerozoic (2)
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phase equilibria (10)
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phosphate deposits (1)
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placers (1)
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Plantae
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algae
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Coccolithophoraceae (1)
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diatoms (2)
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nannofossils
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Discoasteridae (1)
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Pteridophyta (1)
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plate tectonics (18)
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pollution (16)
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potash (1)
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Precambrian
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Archean
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Neoarchean (1)
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Catoctin Formation (1)
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Eocambrian (1)
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Great Smoky Group (3)
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upper Precambrian
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Proterozoic
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Mesoproterozoic (3)
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Neoproterozoic
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Ediacaran (2)
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Lynchburg Formation (2)
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