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oxygen
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Aves (1)
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Mammalia
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Primates
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Rodentia
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Reptilia
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Synapsida
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Thelodonti (1)
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Invertebrata
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Candona (1)
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-
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Insecta
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Pterygota
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Neoptera
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Endopterygota
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Coleoptera (1)
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-
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-
-
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Trilobitomorpha
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Trilobita
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Corynexochida (1)
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Phacopida (1)
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-
-
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Brachiopoda
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Articulata
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Spiriferida
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Terebratulida (1)
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Inarticulata
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Cnidaria
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Echinodermata
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Crinozoa
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-
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Mollusca
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Bivalvia
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Veneroida
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-
-
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Cephalopoda
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Coleoidea
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Belemnitidae (1)
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-
-
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Gastropoda (4)
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Polyplacophora (1)
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Tentaculitida (1)
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Porifera
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Demospongea (1)
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Protista
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Foraminifera
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Rotaliina
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Globorotalia (1)
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Lagenidae (1)
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Vermes
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microfossils
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Conodonta (3)
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Dinoflagellata (2)
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Plantae
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Rhodophyta (1)
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Spermatophyta
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Angiospermae
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Monocotyledoneae (1)
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Gymnospermae
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Coniferales (1)
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problematic fossils
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problematic microfossils (1)
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-
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geochronology methods
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(U-Th)/He (1)
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Ar/Ar (6)
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exposure age (1)
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fission-track dating (1)
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Lu/Hf (1)
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Re/Os (2)
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thermochronology (1)
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U/Pb (16)
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U/Th/Pb (1)
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geologic age
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Cenozoic
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Quaternary
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Cordilleran ice sheet (1)
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Holocene
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lower Holocene (1)
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upper Holocene (2)
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Pleistocene
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lower Pleistocene (2)
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middle Pleistocene (1)
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upper Pleistocene
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Devensian (1)
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Wisconsinan (2)
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-
-
-
Siwalik System (1)
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Tertiary
-
John Day Formation (1)
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Neogene
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Miocene
-
Columbia River Basalt Group (1)
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lower Miocene (1)
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middle Miocene (2)
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Picture Gorge Basalt (1)
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upper Miocene
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Messinian (1)
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Puente Formation (1)
-
-
-
Pliocene
-
upper Pliocene (2)
-
-
-
Paleogene
-
Eocene
-
Jacksonian (1)
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middle Eocene
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Lutetian (1)
-
-
upper Eocene
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La Meseta Formation (1)
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Piney Point Formation (1)
-
-
-
Oligocene
-
lower Oligocene (2)
-
middle Oligocene (1)
-
-
Paleocene
-
lower Paleocene (1)
-
-
Renova Formation (1)
-
Yahuarango Formation (1)
-
-
-
upper Cenozoic
-
Chesapeake Group (1)
-
-
-
Laurentide ice sheet (3)
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Mesozoic
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Cretaceous
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Chonta Formation (1)
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Comanchean (1)
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Lower Cretaceous
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Albian (2)
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Barremian (1)
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Berriasian (1)
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Hauterivian (1)
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McMurray Formation (1)
-
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Mancos Shale (1)
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Upper Cretaceous
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Ferron Sandstone Member (1)
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Maestrichtian (1)
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Pierre Shale (1)
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Turonian (3)
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Vivian Formation (1)
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-
Viking Formation (2)
-
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Jurassic
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Lower Jurassic
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Dunlin Group (1)
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Hettangian (1)
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lower Liassic (1)
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Middle Jurassic (3)
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Solnhofen Limestone (1)
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Upper Jurassic
-
Kimmeridgian
-
upper Kimmeridgian (1)
-
-
Sarayaquillo Formation (1)
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Tithonian (1)
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-
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Pucara Group (1)
-
Triassic
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Lower Triassic
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Induan (2)
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Olenekian (1)
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Middle Triassic
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Anisian (1)
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Upper Triassic (1)
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-
-
Paleozoic
-
Acatlan Complex (1)
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Cambrian
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Middle Cambrian
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Burgess Shale (2)
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Wheeler Formation (1)
-
-
Upper Cambrian
-
Furongian (1)
-
-
-
Carboniferous
-
Benxi Formation (1)
-
Lower Carboniferous (1)
-
Mississippian
-
Lower Mississippian (2)
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Middle Mississippian
-
Visean
-
upper Visean (1)
-
-
-
Price Formation (1)
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Redwall Limestone (1)
-
Upper Mississippian
-
Serpukhovian (2)
-
-
-
Pennsylvanian
-
Francis Creek Shale (1)
-
-
-
Catskill Formation (1)
-
Devonian
-
Lower Devonian
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Emsian (2)
-
-
Middle Devonian
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Eifelian (1)
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Marcellus Shale (1)
-
-
Upper Devonian
-
Famennian (1)
-
-
-
Ellis Bay Formation (1)
-
lower Paleozoic
-
Cape Phillips Formation (1)
-
-
Ordovician
-
Lower Ordovician
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Ellenburger Group (1)
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Tremadocian (1)
-
-
Upper Ordovician
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Cincinnatian (1)
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Katian (1)
-
-
-
Permian
-
Blaine Formation (1)
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Guadalupian
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Capitanian (1)
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Roadian (1)
-
-
Kaibab Formation (1)
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Lower Permian (2)
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Middle Permian (3)
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Mitu Group (1)
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Rotliegendes (1)
-
Upper Permian
-
Zechstein (1)
-
-
-
Silurian
-
Lower Silurian
-
Brassfield Formation (1)
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Llandovery (1)
-
Wenlock (1)
-
-
Middle Silurian (3)
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Niagaran (1)
-
Upper Silurian (1)
-
-
Supai Formation (1)
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Taiyuan Formation (1)
-
upper Paleozoic
-
Shanxi Formation (2)
-
-
-
Phanerozoic (2)
-
Precambrian
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Archean
-
Mesoarchean (1)
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Neoarchean (3)
-
-
Biwabik Iron Formation (1)
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Lewisian Complex (2)
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Pongola Supergroup (1)
-
upper Precambrian
-
Proterozoic
-
Lewisian (1)
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Mesoproterozoic (6)
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Neoproterozoic
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Tonian (1)
-
-
Paleoproterozoic
-
Rustenburg Layered Suite (1)
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-
-
-
-
-
igneous rocks
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extrusive rocks (1)
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igneous rocks
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carbonatites (4)
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hypabyssal rocks (1)
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kimberlite (4)
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picrite (1)
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plutonic rocks
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anorthosite (3)
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appinite (1)
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diabase (4)
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diorites
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microdiorite (1)
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gabbros (3)
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granites
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A-type granites (2)
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charnockite (1)
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monzogranite (1)
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S-type granites (1)
-
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granodiorites (1)
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lamproite (4)
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lamprophyres
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kersantite (1)
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minette (1)
-
-
monzodiorite (1)
-
monzonites
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mangerite (1)
-
-
pegmatite (4)
-
syenites
-
nepheline syenite
-
naujaite (1)
-
-
-
ultramafics
-
peridotites
-
dunite (2)
-
-
-
-
volcanic rocks
-
andesites
-
boninite (1)
-
-
basalts
-
mid-ocean ridge basalts (1)
-
-
dacites (2)
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glasses (3)
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komatiite (1)
-
pyroclastics
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ignimbrite (2)
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scoria (1)
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tuff (2)
-
-
rhyodacites (2)
-
rhyolites (4)
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trachyandesites (1)
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trachytes (1)
-
-
-
ophiolite (2)
-
-
metamorphic rocks
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K-bentonite (1)
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metamorphic rocks
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amphibolites (2)
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cataclasites (1)
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gneisses
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augen gneiss (1)
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orthogneiss (1)
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paragneiss (1)
-
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granulites (2)
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marbles (3)
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metaigneous rocks
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metabasite (1)
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serpentinite (1)
-
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metasedimentary rocks
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metapelite (1)
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paragneiss (1)
-
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metasomatic rocks
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fenite (1)
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serpentinite (1)
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skarn (1)
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metavolcanic rocks (1)
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schists
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blueschist (1)
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slates (2)
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ophiolite (2)
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turbidite (2)
-
-
meteorites
-
meteorites
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Allan Hills Meteorites (1)
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Graves Nunataks Meteorites
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GRA 95209 (1)
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iron meteorites
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ataxite (1)
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hexahedrite (1)
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octahedrite (1)
-
-
stony irons
-
lodranite
-
GRA 95209 (1)
-
-
-
stony meteorites
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acapulcoite (2)
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achondrites
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angrite (1)
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eucrite (1)
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ureilite (1)
-
-
chondrites
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carbonaceous chondrites
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CI chondrites
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Orgueil Meteorite (1)
-
-
CV chondrites (1)
-
-
ordinary chondrites
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L chondrites (2)
-
LL chondrites
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Semarkona Meteorite (1)
-
-
-
-
-
-
-
minerals
-
alloys
-
awaruite (1)
-
plessite (1)
-
-
arsenides
-
gersdorffite (1)
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nickeline (1)
-
-
carbonates
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bastnaesite (1)
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calcite (2)
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siderite (2)
-
-
halides
-
chlorides
-
eudialyte (1)
-
-
fluorides
-
bastnaesite (1)
-
-
-
K-bentonite (1)
-
minerals (2)
-
native elements
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graphite (2)
-
-
organic minerals
-
amber (1)
-
-
oxides
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baddeleyite (1)
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chromite (2)
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franklinite (1)
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hematite (1)
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hydroxides (1)
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iron oxides (1)
-
magnetite (3)
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niobates
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columbite (1)
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pyrochlore (3)
-
-
rutile (2)
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spinel (3)
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spinel group (1)
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titanium oxides (1)
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ulvospinel (1)
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uraninite (1)
-
-
phosphates
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apatite (4)
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britholite (1)
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monazite (3)
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sarcopside (1)
-
-
platinum minerals (1)
-
silicates
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aluminosilicates
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maskelynite (1)
-
-
chain silicates
-
amphibole group
-
alkalic amphibole (1)
-
clinoamphibole
-
actinolite (1)
-
arfvedsonite (2)
-
glaucophane (1)
-
hastingsite (1)
-
pargasite (1)
-
richterite (2)
-
-
orthoamphibole
-
gedrite (1)
-
-
-
pyroxene group
-
clinopyroxene
-
jadeite (1)
-
-
orthopyroxene
-
enstatite (2)
-
-
-
wollastonite group
-
wollastonite (1)
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
K-feldspar (1)
-
sanidine (1)
-
-
plagioclase (2)
-
-
leucite (1)
-
nepheline group
-
nepheline (1)
-
-
pseudoleucite (2)
-
silica minerals
-
coesite (1)
-
opal (1)
-
quartz (3)
-
-
-
orthosilicates
-
nesosilicates
-
britholite group
-
britholite (1)
-
-
garnet group
-
pyrope (1)
-
-
olivine group
-
forsterite (2)
-
olivine (4)
-
ringwoodite (1)
-
-
titanite group
-
titanite (1)
-
-
zircon group
-
zircon (15)
-
-
-
sorosilicates
-
epidote group
-
allanite (2)
-
-
melilite group
-
melilite (1)
-
-
-
-
ring silicates
-
eudialyte (1)
-
tourmaline group
-
elbaite (1)
-
foitite (1)
-
-
-
sheet silicates
-
clay minerals
-
beidellite (1)
-
montmorillonite (1)
-
nontronite (1)
-
saponite (1)
-
smectite (1)
-
vermiculite (1)
-
-
illite (2)
-
mica group
-
celadonite (1)
-
glauconite (1)
-
phlogopite (6)
-
-
serpentine group
-
serpentine (1)
-
-
talc (1)
-
-
-
sulfates
-
alunite (1)
-
barite (3)
-
celestine (1)
-
-
sulfides
-
chalcopyrite (1)
-
copper sulfides (1)
-
gersdorffite (1)
-
heazlewoodite (1)
-
molybdenite (1)
-
oldhamite (1)
-
pentlandite (1)
-
pyrite (1)
-
pyrrhotite (2)
-
troilite (1)
-
zinc sulfides (1)
-
-
tungstates
-
scheelite (1)
-
-
-
Primary terms
-
absolute age (22)
-
Africa
-
Central Africa
-
Rwanda (1)
-
-
East Africa
-
Ethiopia
-
Tigray Ethiopia (1)
-
-
Malawi (1)
-
Tanzania (1)
-
-
Madagascar (1)
-
North Africa
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Algeria
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Constantine Algeria (1)
-
-
Egypt
-
Eastern Desert (1)
-
Nile Delta (1)
-
Sinai Egypt (1)
-
-
Morocco (4)
-
-
Southern Africa
-
Barberton greenstone belt (1)
-
Kaapvaal Craton (1)
-
South Africa
-
Bushveld Complex (1)
-
Eastern Cape Province South Africa (1)
-
Gauteng South Africa (1)
-
KwaZulu-Natal South Africa (1)
-
North-West Province South Africa (1)
-
-
Zimbabwe (1)
-
-
West Africa
-
Ghana (2)
-
-
-
Antarctica
-
Antarctic ice sheet (1)
-
Antarctic Peninsula (1)
-
Ellsworth Land
-
Ellsworth Mountains (1)
-
-
West Antarctica (1)
-
-
Arctic Ocean
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Amerasia Basin (1)
-
Beaufort Sea (1)
-
-
Arctic region
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Greenland
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Ilimaussaq (1)
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South Greenland (1)
-
West Greenland (1)
-
-
-
Asia
-
Arabian Peninsula
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Arabian Shield (1)
-
Oman (1)
-
Saudi Arabia
-
Riyadh Saudi Arabia (1)
-
-
-
Central Asia
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Deep Sea Drilling Project
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Leg 28
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DSDP Site 272 (1)
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