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Mesozoic
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Cretaceous
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Colorado Group (1)
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Dakota Formation (1)
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Lower Cretaceous
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Albian (6)
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Aptian (3)
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Barremian (1)
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Berriasian (1)
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Bluesky Formation (2)
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Cadomin Formation (1)
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Clearwater Formation (2)
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Gething Formation (4)
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Mannville Group (10)
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McMurray Formation (10)
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Mesa Rica Sandstone (1)
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Mowry Shale (1)
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Muderong Shale (1)
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Spirit River Formation (3)
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Wealden (2)
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Zubair Formation (1)
-
-
Mancos Shale (2)
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Nanushuk Group (1)
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Upper Cretaceous
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Belly River Formation (1)
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Campanian
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Dinosaur Park Formation (1)
-
-
Cardium Formation (2)
-
Castlegate Sandstone (1)
-
Cenomanian
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Dunvegan Formation (5)
-
-
Ferron Sandstone Member (2)
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Frontier Formation (3)
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Gulfian
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Austin Chalk (1)
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Eagle Ford Formation (1)
-
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Maestrichtian (1)
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Mesaverde Group (2)
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Montana Group (1)
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Niobrara Formation (3)
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Pierre Shale (3)
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Turonian (5)
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Viking Formation (4)
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Jurassic
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Lower Jurassic (2)
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Middle Jurassic
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Bathonian (1)
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Upper Jurassic
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Kimmeridge Clay (1)
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Kimmeridgian (2)
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Morrison Formation (1)
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Sundance Formation (1)
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Swift Formation (1)
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Tithonian (1)
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Volgian (1)
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-
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Triassic
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Charlie Lake Formation (1)
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Lower Triassic
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Induan (1)
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Permian-Triassic boundary (2)
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Middle Triassic
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Anisian (1)
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Doig Formation (1)
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Montney Formation (1)
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Upper Triassic (2)
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upper Mesozoic (1)
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Yanshanian (1)
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Paleozoic
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Cambrian
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Lower Cambrian
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Gog Group (1)
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Rome Formation (1)
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Middle Cambrian
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Burgess Shale (1)
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Upper Cambrian
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Eau Claire Formation (1)
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Mount Simon Sandstone (2)
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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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Barnett Shale (1)
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Lower Mississippian (2)
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Upper Mississippian
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Serpukhovian (1)
-
-
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Pennsylvanian
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Francis Creek Shale (1)
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Upper Pennsylvanian
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Virgilian
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Tonganoxie Sandstone (1)
-
-
-
-
-
Deadwood Formation (2)
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Devonian
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Keg River Formation (1)
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Lower Devonian (2)
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Middle Devonian
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Eifelian (1)
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Elk Point Group (1)
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Marcellus Shale (1)
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Prairie Evaporite (1)
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Sylvania Formation (1)
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Tully Limestone (1)
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Old Red Sandstone (4)
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Upper Devonian
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Famennian
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Wabamun Group (1)
-
-
Palliser Formation (1)
-
-
-
Exshaw Formation (1)
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Maroon Formation (1)
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Ordovician
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Lower Ordovician
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Beekmantown Group (1)
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Ellenburger Group (1)
-
-
Middle Ordovician
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Saint Peter Sandstone (1)
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Trenton Group (1)
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Upper Ordovician
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Katian (1)
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Red River Formation (1)
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Yeoman Formation (1)
-
-
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Permian
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Ecca Group (1)
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Lower Permian
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Cisuralian
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Artinskian (1)
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Kungurian (1)
-
-
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Lyons Sandstone (1)
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Rotliegendes (1)
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Upper Permian
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Permian-Triassic boundary (2)
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-
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Silurian
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Bass Islands Dolomite (1)
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Lower Silurian
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Grimsby Sandstone (1)
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Llandovery (2)
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Upper Silurian
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Cayugan
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Tonoloway Limestone (1)
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Salina Group (1)
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-
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upper Paleozoic
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Bakken Formation (6)
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Dwyka Formation (1)
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Kaskaskia Sequence (1)
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-
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Phanerozoic (2)
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Precambrian
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Animikie Group (1)
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Biwabik Iron Formation (1)
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Purcell System (2)
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Sokoman Formation (1)
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upper Precambrian
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Proterozoic
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Mesoproterozoic
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Belt Supergroup (6)
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Helena Formation (1)
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Miette Group (2)
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Neoproterozoic
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Cryogenian (1)
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Ediacaran (9)
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Riphean
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upper Riphean (2)
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Tonian (1)
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Vendian (2)
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Oronto Group (1)
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Paleoproterozoic
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Virginia Formation (1)
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Roan Supergroup (1)
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Windermere System (2)
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Ventersdorp Supergroup (1)
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-
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igneous rocks
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agglutinates (1)
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igneous rocks
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carbonatites (2)
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kimberlite (1)
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plutonic rocks
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diabase (1)
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ultramafics
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peridotites
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-
-
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volcanic rocks
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basalts
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mid-ocean ridge basalts (1)
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pyroclastics (1)
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-
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ophiolite (2)
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metamorphic rocks
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metamorphic rocks
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metasedimentary rocks (4)
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ophiolite (2)
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minerals
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martite (1)
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niobates
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phosphates
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apatite (1)
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silicates
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opal
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opal-A (2)
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opal-CT (1)
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quartz (3)
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orthosilicates
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nesosilicates
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olivine group
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zircon group
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zircon (4)
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-
-
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sheet silicates
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chlorite group
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clinochlore (1)
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clay minerals
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illite (2)
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mica group
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glauconite (2)
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serpentine group
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serpentine (1)
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-
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sulfates
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anhydrite (2)
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sulfides
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covellite (1)
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sulfosalts
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sulfarsenites
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tennantite (1)
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-
-
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Primary terms
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absolute age (8)
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Africa
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Congo Democratic Republic
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East Africa
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Southern Africa
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Antarctica
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Asia
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West Siberia
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Yakutia Russian Federation
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Atlantic Ocean
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Australasia
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Western Australia
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New Zealand (3)
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bacteria (1)
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Canada
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Newfoundland and Labrador
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Ontario
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Quebec
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carbon
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C-13/C-12 (14)
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Caribbean region
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Cenozoic
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Quaternary
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lower Pleistocene
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Tertiary
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Pliocene
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lower Pliocene (2)
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Paleogene
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Chadron Formation (1)
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Eocene
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Green River Formation (3)
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middle Eocene (1)
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upper Eocene
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La Meseta Formation (1)
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Oligocene
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Brule Formation (1)
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lower Oligocene
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Rupelian (1)
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upper Oligocene (1)
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Paleocene (3)
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White River Group (1)
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upper Tertiary (1)
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Chordata
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Vertebrata
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Reptilia
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Archosauria
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dinosaurs
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-
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Synapsida
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Therapsida (1)
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clay mineralogy (1)
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Invertebrata
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isotopes
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mantle (1)
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maps (1)
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Mediterranean Sea
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East Mediterranean
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Levantine Basin (1)
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Mesozoic
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Cretaceous
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Colorado Group (1)
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Dakota Formation (1)
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Lower Cretaceous
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Albian (6)
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Aptian (3)
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Barremian (1)
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Berriasian (1)
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Bluesky Formation (2)
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Cadomin Formation (1)
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Clearwater Formation (2)
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Gething Formation (4)
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Mannville Group (10)
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McMurray Formation (10)
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Mesa Rica Sandstone (1)
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Mowry Shale (1)
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Muderong Shale (1)
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Spirit River Formation (3)
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Wealden (2)
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Zubair Formation (1)
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Mancos Shale (2)
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Nanushuk Group (1)
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Upper Cretaceous
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Belly River Formation (1)
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Campanian
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Dinosaur Park Formation (1)
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Cardium Formation (2)
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Castlegate Sandstone (1)
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Cenomanian
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Dunvegan Formation (5)
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Ferron Sandstone Member (2)
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Frontier Formation (3)
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Gulfian
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Austin Chalk (1)
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Eagle Ford Formation (1)
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Maestrichtian (1)
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Mesaverde Group (2)
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Montana Group (1)
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Niobrara Formation (3)
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Pierre Shale (3)
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Turonian (5)
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Viking Formation (4)
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Jurassic
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Lower Jurassic (2)
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Middle Jurassic
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Bathonian (1)
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Upper Jurassic
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Kimmeridge Clay (1)
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Kimmeridgian (2)
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Morrison Formation (1)
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Oxfordian (2)
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Portlandian (1)
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Sundance Formation (1)
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Swift Formation (1)
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Tithonian (1)
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Volgian (1)
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Triassic
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Charlie Lake Formation (1)
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Lower Triassic
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Induan (1)
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Permian-Triassic boundary (2)
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Middle Triassic
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Anisian (1)
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Doig Formation (1)
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Montney Formation (1)
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Upper Triassic (2)
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upper Mesozoic (1)
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Yanshanian (1)
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metal ores
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metals
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rare earths
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cerium (1)
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tantalum (1)
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metamorphic rocks
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cataclasites (1)
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impactites
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metasedimentary rocks (4)
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North America
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Appalachians
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Valley and Ridge Province (2)
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Basin and Range Province (1)
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Canadian Shield
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Glacier National Park (1)
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Great Lakes
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North American Cordillera
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Purcell Mountains (1)
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Rocky Mountains
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U. S. Rocky Mountains
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Laramie Mountains (1)
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Sweetgrass Arch (2)
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Western Canada Sedimentary Basin (7)
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Western Interior
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Western Interior Seaway (8)
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Williston Basin (9)
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ocean basins (1)
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ocean circulation (1)
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ocean floors (3)
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ocean waves (1)
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oil and gas fields (21)
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orogeny (5)
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oxygen
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O-18/O-16 (13)
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Pacific Ocean
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East Pacific
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Northeast Pacific
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Bristol Bay (1)
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North Pacific
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Bering Sea
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Bristol Bay (1)
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Northeast Pacific
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Bristol Bay (1)
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Northwest Pacific
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East China Sea (1)
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Japan Sea (1)
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South Pacific
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Southwest Pacific
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Great South Basin (3)
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West Pacific
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Northwest Pacific
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Southwest Pacific
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paleoclimatology (15)
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paleoecology (23)
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paleogeography (34)
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paleomagnetism (3)
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paleontology (1)
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Paleozoic
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Cambrian
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Lower Cambrian
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Gog Group (1)
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Rome Formation (1)
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Middle Cambrian
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Burgess Shale (1)
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Upper Cambrian
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Eau Claire Formation (1)
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Mount Simon Sandstone (2)
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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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Barnett Shale (1)
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Lower Mississippian (2)
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Upper Mississippian
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Serpukhovian (1)
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Pennsylvanian
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Francis Creek Shale (1)
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Upper Pennsylvanian
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Virgilian
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Tonganoxie Sandstone (1)
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-
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Deadwood Formation (2)
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Devonian
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Keg River Formation (1)
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Lower Devonian (2)
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Middle Devonian
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Eifelian (1)
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Elk Point Group (1)
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Givetian (1)
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Marcellus Shale (1)
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Prairie Evaporite (1)
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Sylvania Formation (1)
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Tully Limestone (1)
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Old Red Sandstone (4)
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Upper Devonian
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Famennian
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Wabamun Group (1)
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Palliser Formation (1)
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Exshaw Formation (1)
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Maroon Formation (1)
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Ordovician
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Lower Ordovician
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Beekmantown Group (1)
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Ellenburger Group (1)
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Middle Ordovician
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Saint Peter Sandstone (1)
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Trenton Group (1)
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Upper Ordovician
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Katian (1)
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Red River Formation (1)
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Yeoman Formation (1)
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Permian
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Ecca Group (1)
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Lower Permian
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Cisuralian
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Artinskian (1)
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Kungurian (1)
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-
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Lyons Sandstone (1)
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Rotliegendes (1)
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Upper Permian
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Permian-Triassic boundary (2)
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Silurian
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Bass Islands Dolomite (1)
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Lower Silurian
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Grimsby Sandstone (1)
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Llandovery (2)
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Upper Silurian
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Cayugan
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Tonoloway Limestone (1)
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Salina Group (1)
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upper Paleozoic
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Bakken Formation (6)
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Dwyka Formation (1)
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Kaskaskia Sequence (1)
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palynology (1)
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palynomorphs
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acritarchs (2)
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Dinoflagellata (2)
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miospores
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pollen (4)
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paragenesis (5)
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petroleum
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natural gas
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shale gas (2)
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shale oil (1)
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petrology (2)
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Phanerozoic (2)
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phase equilibria (1)
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Plantae
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algae
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diatoms (2)
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Spermatophyta
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Gymnospermae
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Glossopteridales
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Gangamopteris (1)
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-
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plate tectonics (5)
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pollution (1)
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Precambrian
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Animikie Group (1)
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Archean
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Neoarchean (1)
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Paleoarchean (1)
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Swaziland Supergroup (1)
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Biwabik Iron Formation (1)
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Brockman Iron Formation (1)
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Gunflint Iron Formation (1)
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Hamersley Group (1)
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Johnnie Formation (1)
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Purcell System
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