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metals
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Rb-87/Sr-86 (1)
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Sr-87/Sr-86 (8)
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Nd-144/Nd-143 (9)
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samarium
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Sm-147/Nd-144 (2)
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noble gases
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oxygen
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fossils
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Chordata
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Tetrapoda
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Mammalia
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Notoungulata (1)
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Rodentia
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Ungulata (1)
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Reptilia (1)
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Cloudina (2)
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coprolites (1)
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Invertebrata
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Arthropoda
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Brachiopoda (2)
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Echinodermata
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Crinozoa
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Mollusca
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Porifera
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Protista
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Foraminifera
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Rotaliina
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Globigerinoides
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Globigerinoides ruber (1)
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-
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-
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Radiolaria (1)
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Metazoa (1)
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microfossils
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Conodonta
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palynomorphs
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miospores
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Plantae
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algae
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diatoms (2)
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nannofossils (2)
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problematic fossils (5)
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geochronology methods
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Ar/Ar (3)
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fission-track dating (1)
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infrared stimulated luminescence (1)
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U/Pb (31)
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U/Th/Pb (2)
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geologic age
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Cenozoic
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Quaternary
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upper Pleistocene (6)
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upper Quaternary (1)
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Stone Age
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Tertiary
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lower Tertiary (1)
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middle Tertiary
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Neogene
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lower Miocene (1)
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Pliocene (9)
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Paleogene
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lower Paleogene (1)
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Oligocene
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upper Oligocene
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Chattian (1)
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Paleocene (1)
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upper Paleogene (1)
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Sarmiento Formation (1)
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-
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Dalradian (3)
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Mesozoic
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Cretaceous
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Lower Cretaceous
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Albian (1)
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Yingcheng Formation (1)
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Middle Cretaceous (1)
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Dawson Canyon Formation (1)
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La Luna Formation (2)
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Maestrichtian (1)
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Senonian (2)
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Wyandot Formation (1)
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Jurassic
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middle Liassic (1)
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Middle Jurassic
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Norphlet Formation (1)
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Upper Jurassic
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Kimmeridgian (2)
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Triassic
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Lower Triassic
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Permian-Triassic boundary (2)
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Middle Triassic
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Upper Triassic
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Chinle Formation (1)
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Paleozoic
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Carboniferous
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Devonian
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Guilmette Formation (2)
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Cedar Valley Formation (1)
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Upper Devonian (1)
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Hunton Group (1)
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lower Paleozoic (1)
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middle Paleozoic (1)
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Ordovician
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Upper Ordovician
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Katian (1)
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Permian
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Phosphoria Formation (1)
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Upper Permian
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Permian-Triassic boundary (2)
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Zechstein (1)
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Silurian
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Llandovery (1)
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Tensleep Sandstone (1)
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upper Paleozoic (1)
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Phanerozoic (3)
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Precambrian
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Yellowknife Group (1)
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upper Precambrian
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Proterozoic
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Mesoproterozoic
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Calymmian (1)
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Neoproterozoic
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Ediacaran (9)
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Tonian (1)
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Paleoproterozoic
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Statherian (1)
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Sinian
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Dengying Formation (2)
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Doushantuo Formation (1)
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igneous rocks
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igneous rocks
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feldspathoid rocks (3)
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kimberlite (2)
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plutonic rocks
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anorthosite (1)
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diabase (4)
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trondhjemite (1)
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gabbros (3)
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granites
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alkali granites (2)
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granite porphyry (1)
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I-type granites (1)
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monzogranite (1)
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S-type granites (1)
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granodiorites (2)
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ijolite (1)
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pegmatite (3)
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syenites
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nepheline syenite
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agpaite (1)
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quartz syenite (1)
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ultramafics
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urtite (1)
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volcanic rocks
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flood basalts (1)
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mid-ocean ridge basalts (1)
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ocean-island basalts (2)
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tholeiite (2)
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dacites (2)
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pyroclastics
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ignimbrite (1)
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rhyolites (4)
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-
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ophiolite (5)
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volcanic ash (1)
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metamorphic rocks
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metamorphic rocks
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amphibolites
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orthoamphibolite (1)
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cataclasites (1)
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eclogite (2)
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gneisses
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orthogneiss (1)
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granulites (1)
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lapis lazuli (1)
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metabasite (1)
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metadacite (1)
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serpentinite (2)
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metasedimentary rocks
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metasomatic rocks
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greisen (1)
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metavolcanic rocks (1)
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ophiolite (5)
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turbidite (5)
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meteorites
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meteorites
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achondrites
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ureilite (1)
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Yamato Meteorites (1)
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minerals
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alloys
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kamacite (1)
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arsenates (1)
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borates
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carbonates
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calcite (1)
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cancrinite (10)
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halides
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fluorides
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minerals (5)
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native elements
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diamond (2)
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oxalates (2)
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rutile (3)
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amphibole group
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pyroxene group
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clinopyroxene
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aegirine (2)
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diopside (3)
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omphacite (1)
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spodumene (1)
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orthopyroxene
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enstatite (1)
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wollastonite group
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pectolite (1)
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-
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feldspathoids (3)
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framework silicates
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cancrinite (10)
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danburite (1)
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feldspar group
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alkali feldspar
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K-feldspar (2)
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microcline (1)
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sanidine (1)
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plagioclase (1)
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nepheline group
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nepheline (2)
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scapolite group
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scapolite (1)
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silica minerals
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quartz (2)
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sodalite group
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hauyne (3)
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lazurite (4)
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nosean (2)
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sodalite (4)
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zeolite group
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erionite (1)
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faujasite (1)
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gmelinite (1)
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-
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orthosilicates
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nesosilicates
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braunite (1)
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datolite group
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gadolinite (2)
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dumortierite (1)
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garnet group
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pyrope (1)
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humite (1)
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olivine group
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olivine (1)
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sillimanite (1)
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staurolite (2)
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stillwellite (1)
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titanite group
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titanite (1)
-
-
zircon group
-
zircon (25)
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-
-
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ring silicates
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beryl (3)
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cordierite (1)
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eudialyte (1)
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labuntsovite (1)
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milarite group
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milarite (1)
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tourmaline group
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dravite (1)
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schorl (1)
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-
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sheet silicates
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chlorite group
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chlorite (1)
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clay minerals
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beidellite (1)
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imogolite (1)
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kaolinite (1)
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smectite (5)
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illite (2)
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mica group
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annite (1)
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biotite (2)
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muscovite (2)
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phlogopite (2)
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palygorskite (3)
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sepiolite (6)
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serpentine group
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antigorite (1)
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stilpnomelane (1)
-
-
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sulfates
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alunite (1)
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anhydrite (5)
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barite (2)
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bassanite (7)
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gypsum (5)
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jarosite (1)
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lazurite (4)
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pickeringite (1)
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polyhalite (2)
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sulfides
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acanthite (1)
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arsenopyrite (1)
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bismuthinite (2)
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bornite (1)
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chalcopyrite (3)
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cinnabar (1)
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galena (3)
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lazurite (4)
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metacinnabar (1)
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molybdenite (2)
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pyrite (4)
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pyrrhotite (1)
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realgar (8)
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sulfosalts
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sulfobismuthites
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berryite (1)
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gustavite (1)
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matildite (1)
-
-
-
tellurides (1)
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vanadates (1)
-
-
Primary terms
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absolute age (41)
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Africa
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Central Africa
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Angola (2)
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Congo Democratic Republic (1)
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East Africa
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East African Rift (2)
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North Africa
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Egypt
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Libya (1)
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Nubian Shield (3)
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Southern Africa
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Namibia (8)
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West Africa
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Asia
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Central Asia
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Far East
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Japan
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Laos (1)
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Indian Peninsula
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India
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Trans-Aravalli Vindhyan Basin (1)
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Irkutsk Russian Federation
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associations (1)
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asteroids (1)
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