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Jurassic
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Carmel Formation (2)
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Fernie Formation (1)
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Heather Formation (1)
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Middle Jurassic
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Aalenian (1)
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Bajocian
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Brent Group (1)
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Callovian (2)
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Opalinus Clay (2)
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Upper Jurassic
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Entrada Sandstone (1)
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Haynesville Formation (1)
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Josephine Ophiolite (1)
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Kimmeridge Clay (2)
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Oxfordian (2)
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Tithonian (1)
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Navajo Sandstone (1)
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Triassic
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Sherwood Sandstone (1)
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Vaca Muerta Formation (1)
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metal ores
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antimony ores (1)
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copper ores (1)
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gold ores (1)
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silver ores (1)
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metals
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alkaline earth metals
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strontium
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Sr-87/Sr-86 (2)
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-
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iron
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ferric iron (1)
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ferrous iron (1)
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rare earths
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neodymium
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Nd-144/Nd-143 (2)
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-
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metamorphic rocks
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amphibolites (1)
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cataclasites (2)
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eclogite (2)
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gneisses
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granite gneiss (1)
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granulites (1)
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impactites
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impact breccia
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lunar breccia (1)
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marbles (2)
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metaigneous rocks
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serpentinite (1)
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metasedimentary rocks
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metaconglomerate (1)
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metagraywacke (1)
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metasomatic rocks
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serpentinite (1)
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mylonites
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pseudotachylite (4)
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ultramylonite (1)
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quartzites (3)
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schists (3)
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metamorphism (9)
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Mohorovicic discontinuity (1)
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Moon (1)
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mud volcanoes (2)
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museums (1)
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North America
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Appalachian Basin (1)
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Appalachians
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Appalachian Plateau (1)
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Northern Appalachians (1)
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Southern Appalachians (1)
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Valley and Ridge Province (1)
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Basin and Range Province
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Great Basin (2)
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Canadian Shield
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Grenville Province (1)
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Slave Province (1)
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Superior Province (1)
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Coast plutonic complex (1)
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Great Lakes region (1)
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Grenville Front (1)
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Gulf Coastal Plain (1)
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Keweenawan Rift (1)
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North American Cordillera (1)
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Rio Grande Rift (2)
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Rocky Mountains
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Southern Rocky Mountains (1)
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U. S. Rocky Mountains
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Gore Range (1)
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Sawatch Range (1)
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Spanish Peaks (1)
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nuclear facilities (1)
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ocean basins (1)
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ocean circulation (1)
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Ocean Drilling Program
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Leg 110
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ODP Site 671 (1)
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Leg 111 (1)
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Leg 137 (1)
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Leg 140 (1)
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Leg 146 (1)
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Leg 148 (1)
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Leg 153
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ODP Site 920 (1)
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Leg 156
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ODP Site 947 (1)
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ODP Site 948 (1)
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ODP Site 949 (1)
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Leg 170
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ODP Site 1039 (2)
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ODP Site 1040 (2)
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ODP Site 1043 (2)
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Leg 190 (2)
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Leg 194
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ODP Site 1192 (1)
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ODP Site 1193 (1)
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ODP Site 1194 (1)
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ODP Site 1195 (1)
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Leg 196 (1)
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ocean floors (6)
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Oceania
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Melanesia
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Vanuatu (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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Mauna Kea (1)
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oceanography (5)
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oil and gas fields (9)
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orogeny (16)
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oxygen
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O-18/O-16 (3)
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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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Gorda Rise (1)
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Gulf of Alaska (1)
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Loihi Seamount (1)
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Middle America Trench (2)
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Peru-Chile Trench (1)
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Southeast Pacific (2)
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Equatorial Pacific (2)
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North Pacific
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Aleutian Trench (1)
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Northeast Pacific
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Gorda Rise (1)
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Gulf of Alaska (1)
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Loihi Seamount (1)
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Middle America Trench (2)
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Northwest Pacific
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Nankai Trough (2)
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South Pacific
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Southeast Pacific (2)
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Southwest Pacific
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Coral Sea
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Marion Plateau (1)
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West Pacific
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Northwest Pacific
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Nankai Trough (2)
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Southwest Pacific
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Coral Sea
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Marion Plateau (1)
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paleoecology (1)
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paleogeography (3)
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Paleozoic
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Berea Sandstone (1)
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Cambrian
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Conasauga Group (1)
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Upper Cambrian
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Eau Claire Formation (1)
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Goldenville Formation (1)
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Mount Simon Sandstone (2)
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Carboniferous
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Lower Carboniferous
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Dinantian (1)
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Mississippian
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Barnett Shale (5)
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Middle Mississippian
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Visean (1)
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Pennsylvanian
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Pottsville Group (1)
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Devonian
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Keg River Formation (1)
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Middle Devonian
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Mahantango Formation (1)
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Marcellus Shale (2)
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Upper Devonian (2)
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lower Paleozoic
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Rose Run Sandstone (1)
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New Albany Shale (1)
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Ordovician
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Chickamauga Group (1)
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Lower Ordovician
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Tremadocian
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Halifax Formation (1)
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Meguma Group (1)
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Trenton Group (1)
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Upper Ordovician (1)
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Permian
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Lower Permian
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Wolfcampian (1)
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Rotliegendes (1)
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Upper Permian
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Zechstein (2)
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Vryheid Formation (1)
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Silurian (1)
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Tippecanoe Sequence (1)
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upper Paleozoic
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Dwyka Formation (1)
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Woodford Shale (1)
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palynomorphs
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miospores
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pollen (1)
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permafrost (1)
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petroleum
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natural gas
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coalbed methane (1)
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shale gas (1)
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petrology (4)
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Plantae
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algae
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diatoms (1)
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plate tectonics (33)
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pollution (2)
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Precambrian
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Archean (4)
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upper Precambrian
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Proterozoic
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Mesoproterozoic (1)
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Neoproterozoic
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Torridonian (1)
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Ortega Group (1)
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Paleoproterozoic (3)
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reclamation (3)
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remote sensing (6)
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reservoirs (1)
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roads (3)
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rock mechanics (54)
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sea water (1)
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sea-floor spreading (5)
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sea-level changes (2)
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sedimentary petrology (3)
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sedimentary rocks
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carbonate rocks
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chalk (3)
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dolostone (2)
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limestone
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calcarenite (2)
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chemically precipitated rocks
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chert (2)
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evaporites
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salt (6)
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flint (1)
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clastic rocks
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arenite
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quartz arenite (2)
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bentonite (5)
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black shale (2)
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claystone (2)
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conglomerate (1)
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marl (2)
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mudstone (14)
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sandstone (22)
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shale (10)
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siltstone (2)
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coal (2)
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gas shale (3)
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oil shale (1)
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sedimentary structures
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bedding plane irregularities
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planar bedding structures
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bedding (3)
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cross-bedding (1)
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laminations (1)
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