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all geography including DSDP/ODP Sites and Legs
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Africa
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Nunavut
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Caribbean region
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Russian Federation
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Arkhangelsk Russian Federation
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Irkutsk Russian Federation (2)
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Novosibirsk Russian Federation (2)
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Russian Arctic
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Lithothamnium (1)
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Bryophyta
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Musci
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Sphagnum (2)
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Pteridophyta
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Lycopsida
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Lycopodium (1)
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Spermatophyta
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Angiospermae
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Dicotyledoneae
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Artemisia (1)
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Fagus (1)
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Gymnospermae
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Bennettitales (1)
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Coniferales
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Pinaceae (1)
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Ginkgoales (1)
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problematic fossils (2)
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Pterobranchia (1)
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geochronology methods
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(U-Th)/He (2)
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Ar/Ar (22)
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exposure age (4)
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fission-track dating (1)
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I/Xe (1)
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K/Ar (5)
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lichenometry (1)
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optically stimulated luminescence (6)
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paleomagnetism (60)
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Pb/Pb (2)
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racemization (2)
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radiation damage (1)
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Rb/Sr (1)
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Re/Os (3)
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sclerochronology (1)
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Sm/Nd (2)
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Sr/Sr (1)
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tephrochronology (2)
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Th/U (2)
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thermochronology (2)
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thermoluminescence (1)
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tree rings (6)
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U/Pb (22)
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U/Th/Pb (4)
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uranium disequilibrium (1)
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geologic age
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Cenozoic
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Bronze Age (3)
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Quaternary
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Holocene
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lower Holocene (6)
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Medieval Warm Period (6)
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Middle Ages (2)
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middle Holocene (7)
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Neoglacial
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Little Ice Age (3)
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Neolithic (1)
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upper Holocene
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Little Ice Age (3)
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Roman period (1)
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Innuitian ice sheet (1)
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lower Quaternary (1)
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Pleistocene
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Bishop Tuff (1)
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Blackwater Draw Formation (1)
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Lake Lahontan (1)
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lower Pleistocene (2)
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Matuyama Chron (1)
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middle Pleistocene (2)
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upper Pleistocene
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Eemian (1)
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Lake Lisan (1)
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Lisan Formation (1)
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Weichselian
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Loch Lomond Stade (2)
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Oldest Dryas (1)
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upper Weichselian
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Allerod (2)
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Bolling (2)
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Older Dryas (1)
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Younger Dryas (7)
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Wisconsinan
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upper Wisconsinan (1)
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Wurm (1)
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upper Quaternary
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Brunhes Chron (1)
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Bull Lake Glaciation (1)
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Pinedale Glaciation (1)
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Stone Age
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Neolithic (1)
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Tertiary
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lower Tertiary (1)
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middle Tertiary (1)
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Neogene
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Etchegoin Formation (1)
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Miocene
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lower Miocene (1)
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upper Miocene
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Messinian (2)
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Tortonian (1)
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Pliocene
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Gauss Chron (1)
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lower Pliocene (2)
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upper Pliocene (3)
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Paleogene
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Chadron Formation (1)
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Eocene
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Bracklesham Group (1)
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lower Eocene
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Ypresian
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London Clay (2)
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middle Eocene (2)
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upper Eocene (5)
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Oligocene
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Brule Formation (1)
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lower Oligocene (2)
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Paleocene
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lower Paleocene
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Danian (2)
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K-T boundary (5)
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Tullock Member (1)
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upper Paleocene (1)
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Paleocene-Eocene Thermal Maximum (7)
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White River Group (1)
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Shahejie Formation (1)
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upper Cenozoic (2)
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Laurentide ice sheet (6)
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Mesozoic
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Cretaceous
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Dakota Formation (1)
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Lower Cretaceous
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Albian
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lower Albian (2)
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Aptian
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lower Aptian (1)
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Barremian (1)
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Cedar Mountain Formation (1)
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Yingcheng Formation (1)
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Nanushuk Group (1)
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Upper Cretaceous
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Bridge Creek Limestone Member (1)
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Cenomanian
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upper Cenomanian (1)
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Colville Group (1)
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Coniacian (1)
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Gulfian
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Eagle Ford Formation (1)
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Hell Creek Formation (1)
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K-T boundary (5)
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Maestrichtian (1)
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Senonian (1)
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Turonian
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lower Turonian (1)
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Two Medicine Formation (1)
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Franciscan Complex (1)
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Jurassic
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Clarens Formation (1)
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Ferrar Group (1)
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Lower Jurassic
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Hettangian (1)
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lower Liassic (1)
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middle Liassic (2)
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Pliensbachian (5)
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Toarcian
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lower Toarcian (2)
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Triassic-Jurassic boundary (1)
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upper Liassic (2)
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Middle Jurassic
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Bajocian (1)
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Bathonian (1)
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Upper Jurassic (1)
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Navajo Sandstone (2)
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Triassic
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Lower Triassic
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Permian-Triassic boundary (2)
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Smithian (1)
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Spathian (1)
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Middle Triassic
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Anisian (1)
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Montney Formation (1)
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Upper Triassic
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Chinle Formation (1)
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Rhaetian (1)
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Triassic-Jurassic boundary (1)
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MIS 6 (1)
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MIS 7 (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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Tommotian (1)
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Middle Cambrian (2)
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Upper Cambrian
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Furongian (1)
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Carboniferous
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Lower Carboniferous (1)
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Middle Carboniferous (1)
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Mississippian
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Upper Mississippian (1)
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Pennsylvanian
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Middle Pennsylvanian (1)
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Upper Pennsylvanian (2)
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Upper Carboniferous (3)
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Devonian
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Lower Devonian (1)
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Middle Devonian
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Marcellus Shale (1)
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Onondaga Limestone (1)
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Old Red Sandstone (1)
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Upper Devonian (1)
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Itarare Subgroup (1)
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lower Paleozoic
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Conococheague Formation (1)
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Ordovician
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Lower Ordovician (2)
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Middle Ordovician (2)
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Trenton Group (1)
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Upper Ordovician
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Ashgillian (1)
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Caradocian
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Borrowdale Volcanic Group (1)
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Cincinnatian (1)
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Mohawkian (1)
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Wufeng Formation (1)
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Utica Shale (1)
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Permian
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Chase Group (1)
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Council Grove Group (1)
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Ecca Group (1)
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Guadalupian (1)
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Lower Permian
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Cisuralian
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Asselian (1)
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Sakmarian (1)
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Middle Permian (1)
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Upper Permian
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Permian-Triassic boundary (2)
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Silurian
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Lower Silurian
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Llandovery (1)
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Tuscarora Formation (1)
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Wenlock (1)
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Middle Silurian
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Clinton Group (1)
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Rose Hill Formation (1)
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Upper Silurian
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Ludlow (1)
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upper Paleozoic (2)
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Phanerozoic (20)
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Precambrian
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Archean
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Mesoarchean (1)
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Paleoarchean (5)
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Chuar Group (1)
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Hadean (6)
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Levack Gneiss (1)
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upper Precambrian
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Proterozoic
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Huronian
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Onaping Formation (1)
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Hutuo Group (1)
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Lewisian (1)
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Mesoproterozoic
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Belt Supergroup (1)
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Laxfordian (1)
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Revett Quartzite (1)
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Neoproterozoic
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Cryogenian (1)
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Ediacaran (5)
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Marinoan (1)
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Sturtian (1)
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Tonian (1)
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Torridonian (1)
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Vendian (3)
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Paleoproterozoic
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Chelmsford Formation (1)
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Whitewater Group (1)
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igneous rocks
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igneous rocks
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carbonatites (3)
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granophyre (2)
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kimberlite (2)
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plutonic rocks
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diabase (5)
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diorites
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tonalite (1)
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trondhjemite (1)
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gabbros
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norite (1)
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granites
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I-type granites (2)
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S-type granites (1)
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granodiorites (5)
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pegmatite (1)
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ultramafics
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chromitite (2)
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peridotites (1)
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porphyry
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vitrophyre (1)
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volcanic rocks
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andesites (4)
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basalts
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columnar basalt (1)
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flood basalts (5)
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mid-ocean ridge basalts (5)
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ocean-island basalts (2)
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tholeiite (1)
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trap rocks (1)
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dacites (1)
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glasses
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obsidian (1)
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komatiite (5)
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pyroclastics
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ash-flow tuff (1)
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pumice (1)
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scoria (1)
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tuff (8)
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rhyolites (3)
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vitrophyre (1)
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