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all geography including DSDP/ODP Sites and Legs
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geochronology methods
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Ar/Ar (2)
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U/Pb (7)
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geologic age
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Cenozoic
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Quaternary
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upper Holocene
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Pleistocene
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Blackwater Draw Formation (1)
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Matuyama Chron (1)
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upper Pleistocene
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Devensian (1)
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upper Weichselian
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Allerod (1)
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Wisconsinan (4)
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upper Quaternary (3)
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Siwalik System (1)
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Stone Age
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Tertiary
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lower Tertiary (1)
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Neogene
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Capistrano Formation (1)
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Miocene
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Ash Hollow Formation (1)
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upper Miocene (5)
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Zia Formation (2)
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Ogallala Formation (1)
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Pliocene
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Gauss Chron (1)
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lower Pliocene (3)
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upper Neogene (1)
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Paleogene
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Eocene
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Green River Formation (1)
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lower Eocene
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Ypresian
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London Clay (1)
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middle Eocene
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Claiborne Group (1)
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Tallahatta Formation (1)
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upper Eocene
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Jackson Group (1)
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Oligocene
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upper Oligocene (1)
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Paleocene (2)
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upper Cenozoic (1)
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Mesozoic
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Cretaceous
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Comanchean
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Washita Group (1)
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Dakota Formation (1)
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Lower Cretaceous
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Albian
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lower Albian (1)
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Aptian (1)
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Muddy Sandstone (1)
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Muderong Shale (1)
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Lower Greensand (1)
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Natih Formation (1)
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Jurassic
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Upper Jurassic
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Serra Geral Formation (1)
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Triassic
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Upper Triassic
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Luning Formation (2)
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MIS 2 (1)
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Paleozoic
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Berea Sandstone (2)
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Cambrian
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Upper Cambrian
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Mount Simon Sandstone (1)
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Carboniferous
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Lower Carboniferous
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Mississippian
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Hartselle Sandstone (1)
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Pennsylvanian (1)
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Devonian
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Onondaga Limestone (2)
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Upper Devonian (1)
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Exshaw Formation (1)
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Ordovician
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Middle Ordovician
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Saint Peter Sandstone (2)
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Upper Ordovician (1)
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Permian
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Coconino Sandstone (1)
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Khuff Formation (2)
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Lower Permian (1)
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Unayzah Formation (1)
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Upper Permian (1)
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upper Paleozoic
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Dwyka Formation (1)
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Precambrian
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Transvaal Supergroup (1)
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upper Precambrian
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Proterozoic
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Paleoproterozoic
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Rustenburg Layered Suite (1)
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Pretoria Group (1)
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igneous rocks
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igneous rocks
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kimberlite (2)
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plutonic rocks
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diabase (1)
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diorites
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granites
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volcanic rocks
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rhyolites (3)
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volcanic ash (3)
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marbles (1)
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phosphates
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silicates
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pyroxene group
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clinopyroxene
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framework silicates
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nepheline group
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silica minerals
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quartz (16)
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orthosilicates
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nesosilicates
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garnet group
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olivine group
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olivine (1)
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zircon group
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zircon (9)
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sorosilicates
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epidote group
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epidote (1)
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ring silicates
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tourmaline group (1)
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sheet silicates
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chlorite group
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chlorite (3)
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clay minerals
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allophane (1)
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beidellite (1)
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kaolinite (4)
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montmorillonite (2)
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vermiculite (2)
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illite (4)
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mica group
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biotite (1)
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palygorskite (2)
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sulfates
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gypsum (1)
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sulfides
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bornite (1)
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Primary terms
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absolute age (17)
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Africa
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South Africa
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West Africa
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Antarctica
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Arctic Ocean
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Asia
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Indonesia (2)
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Australasia
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New Zealand (2)
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Northwest Territories
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Yukon Territory
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carbon
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C-13/C-12 (5)
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C-14 (9)
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organic carbon (5)
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Caribbean region
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West Indies
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Antilles
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Cenozoic
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Quaternary
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Holocene
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upper Holocene
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Little Ice Age (1)
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Pleistocene
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Blackwater Draw Formation (1)
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lower Pleistocene (1)
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upper Pleistocene
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Devensian (1)
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upper Weichselian
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Wisconsinan (4)
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upper Quaternary (3)
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Siwalik System (1)
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Stone Age
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Tertiary
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lower Tertiary (1)
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Neogene
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Capistrano Formation (1)
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Miocene
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Ash Hollow Formation (1)
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upper Miocene (5)
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Zia Formation (2)
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Ogallala Formation (1)
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Pliocene
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Gauss Chron (1)
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upper Neogene (1)
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Paleogene
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Eocene
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Green River Formation (1)
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lower Eocene
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Ypresian
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London Clay (1)
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middle Eocene
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Claiborne Group (1)
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upper Eocene
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Jackson Group (1)
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Oligocene
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upper Oligocene (1)
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upper Cenozoic (1)
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Deep Sea Drilling Project
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IPOD
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Leg 76
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DSDP Site 533 (1)
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Leg 11 (1)
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deformation (5)
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Europe
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Integrated Ocean Drilling Program
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Expedition 346
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IODP Site U1425 (1)
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intrusions (6)
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Invertebrata
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Arthropoda
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Mandibulata
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Crustacea
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Ostracoda (2)
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Cnidaria
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Anthozoa (1)
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Mollusca
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Bivalvia
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Pterioida
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Pteriina
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Inocerami
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Inoceramidae (1)
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Gastropoda (1)
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Protista
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Foraminifera
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Rotaliina
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Globigerinacea
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Neogloboquadrina
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Neogloboquadrina dutertrei (1)
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Radiolaria (1)
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isostasy (1)
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isotopes
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radioactive isotopes
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C-14 (9)
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Cs-137 (2)
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Pb-210 (2)
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stable isotopes
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C-13/C-12 (5)
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O-18/O-16 (4)
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Sr-87/Sr-86 (1)
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land subsidence (2)
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land use (1)
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limestone deposits (1)
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lineation (1)
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magmas (2)
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Malay Archipelago
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Borneo (1)
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mantle (2)
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marble deposits (1)
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marine geology (2)
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mathematical geology (1)
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Mediterranean region
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Aegean Islands
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Greek Aegean Islands
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Cyclades
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Thera (1)
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Calabrian Arc (1)
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Mediterranean Sea
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East Mediterranean
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Ionian Sea (2)
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West Mediterranean
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Gulf of Lion (1)
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Mesozoic
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Cretaceous
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Comanchean
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Washita Group (1)
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Dakota Formation (1)
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Lower Cretaceous
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Albian
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lower Albian (1)
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Aptian (1)
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Muddy Sandstone (1)
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Muderong Shale (1)
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Lower Greensand (1)
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Middle Cretaceous (1)
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Natih Formation (1)
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Upper Cretaceous (3)
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Jurassic
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Ferrar Group (1)
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Lower Jurassic (1)
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Middle Jurassic
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Bathonian (1)
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Callovian (1)
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Upper Jurassic
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Kimmeridgian (1)
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Oxfordian (1)
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Tithonian (1)
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Serra Geral Formation (1)
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Triassic
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Lower Triassic (1)
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Upper Triassic
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Luning Formation (2)
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metal ores
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copper ores (2)
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gold ores (4)
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lead ores (1)
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manganese ores (1)
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molybdenum ores (1)
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nickel ores (1)
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uranium ores (1)
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zinc ores (2)
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metals
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alkali metals
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cesium
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Cs-137 (2)
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alkaline earth metals
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magnesium (1)
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strontium
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Sr-87/Sr-86 (1)
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antimony (1)
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cadmium (1)
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chromium (1)
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iron
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ferric iron (1)
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ferrous iron (1)
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lead
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Pb-210 (2)
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mercury (1)
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nickel (1)
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rare earths
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yttrium (1)
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zinc (2)
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metamorphic rocks
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gneisses
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granite gneiss (1)
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impactites
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impact breccia
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suevite (1)
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marbles (1)
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metasedimentary rocks
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metapelite (1)
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schists (1)
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metamorphism (3)
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metasomatism (4)
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Mexico
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Veracruz Mexico (1)
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mineral deposits, genesis (5)
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mineral exploration (10)
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mineral resources (2)
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mineralogy (4)
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minerals (5)
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mining geology (2)
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Mohorovicic discontinuity (1)
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mud volcanoes (1)
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nitrogen
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organic nitrogen (1)
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North America
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Appalachians (1)
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Basin and Range Province (1)
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Canadian Shield
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Flin Flon Belt (1)
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Grenville Province (1)
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Superior Province (1)
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Great Lakes
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Lake Huron (1)
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Lake Ontario (1)
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Lake Superior (1)
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Great Plains
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Southern Great Plains (1)
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Gulf Coastal Plain (4)
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Juan de Fuca Strait (1)
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Pedregosa Basin (1)
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Rio Grande Rift (1)
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Rocky Mountains (1)
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Saint Lawrence River (1)
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Yukon River (1)
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Northern Hemisphere (1)
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ocean circulation (1)
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Ocean Drilling Program
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Leg 105
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ODP Site 645 (1)
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Leg 164
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ODP Site 994 (1)
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ODP Site 995 (1)
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ODP Site 997 (1)
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Leg 172 (1)
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ocean floors (3)
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ocean waves (1)
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Oceania
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Kiribati (1)
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Micronesia (1)
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Polynesia
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Hawaii
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Hawaii County Hawaii
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Hawaii Island
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Kilauea (1)
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Honolulu County Hawaii
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Oahu (1)
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oceanography (15)
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oil and gas fields (4)
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oxygen
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O-18/O-16 (4)
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Pacific Coast (1)
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Pacific Ocean
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East Pacific
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Northeast Pacific
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Gulf of Alaska (1)
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Mendocino fracture zone (1)
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Peru-Chile Trench (1)
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Equatorial Pacific (1)
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North Pacific
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Aleutian Trench (1)
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Bering Sea (1)
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Northeast Pacific
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Gulf of Alaska (1)
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Mendocino fracture zone (1)
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Northwest Pacific
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Japan Sea
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Yamato Rise (1)
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South China Sea (1)
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West Pacific
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Northwest Pacific
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Japan Sea
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Yamato Rise (1)
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South China Sea (1)
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paleoclimatology (22)
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paleoecology (1)
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paleogeography (11)
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paleomagnetism (8)
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Paleozoic
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Berea Sandstone (2)
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Cambrian
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Tapeats Sandstone (1)
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Upper Cambrian
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Mount Simon Sandstone (1)
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Carboniferous
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Lower Carboniferous
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Dinantian (1)
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Mississippian
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Upper Mississippian
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Hartselle Sandstone (1)
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Pennsylvanian (1)
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Upper Carboniferous (1)
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Devonian
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Middle Devonian
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Onondaga Limestone (2)
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Upper Devonian (1)
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Exshaw Formation (1)
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Ordovician
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Middle Ordovician
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Saint Peter Sandstone (2)
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Upper Ordovician (1)
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Permian
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Coconino Sandstone (1)
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Khuff Formation (2)
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Lower Permian (1)
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Unayzah Formation (1)
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Upper Permian (1)
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upper Paleozoic
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Dwyka Formation (1)
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palynology (1)
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palynomorphs
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miospores
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pollen (2)
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paragenesis (4)
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permafrost (2)
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petroleum (15)
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petrology (7)
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placers (2)
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Plantae
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algae
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Chlorophyta
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Chlorophyceae
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Codiaceae
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Halimeda (1)
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Coccolithophoraceae (1)
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diatoms (3)
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Rhodophyta (1)
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plate tectonics (8)
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pollution (8)
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potash (1)
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