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Lower Jurassic
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Triassic
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Paleozoic
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Primary terms
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Oligocene
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Paleocene (6)
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Shahejie Formation (5)
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Chordata
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Lower Jurassic
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Nordegg Member (2)
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upper Liassic (2)
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Mic Mac Formation (1)
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Middle Jurassic
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Posidonia Shale (1)
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Upper Jurassic
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Arab Formation (1)
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Triassic
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Bohai Bay (3)
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South Pacific
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Southwest Pacific
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Coral Sea
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Great Barrier Reef (1)
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West Pacific
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Northwest Pacific
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Yellow Sea
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Bohai Sea
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Bohai Bay (3)
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Southwest Pacific
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Coral Sea
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Great Barrier Reef (1)
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paleoclimatology (5)
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paleoecology (4)
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paleogeography (7)
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paleomagnetism (2)
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paleontology (4)
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Paleozoic
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Cambrian
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Middle Cambrian
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Burgess Shale (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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Barnett Shale (1)
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Lower Mississippian
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Kinderhookian
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Banff Formation (1)
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Lodgepole Formation (1)
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Tournaisian (1)
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Macumber Formation (1)
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Madison Group (1)
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Upper Mississippian
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Chesterian (1)
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Windsor Group (1)
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Pennsylvanian
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Herrin Coal Member (1)
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Middle Pennsylvanian
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Paradox Formation (1)
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Springer Formation (1)
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Chattanooga Shale (1)
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Devonian
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Upper Devonian
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Famennian
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Wabamun Group (1)
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Frasnian (2)
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Grosmont Formation (5)
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Nisku Formation (2)
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Exshaw Formation (6)
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Horton Group (2)
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lower Paleozoic (1)
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Ordovician (4)
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Permian
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Cutler Formation (1)
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Hennessey Formation (1)
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Kaibab Formation (1)
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Khuff Formation (1)
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Lower Permian
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Autunian (1)
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Meade Peak Member (1)
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Park City Formation (1)
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Retort Phosphatic Shale Member (1)
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Upper Permian
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Zechstein (2)
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Sauk Sequence (1)
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Silurian
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Middle Silurian
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Racine Dolomite (1)
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Niagaran (1)
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Tippecanoe Sequence (1)
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upper Paleozoic
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Antrim Shale (1)
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Bakken Formation (3)
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Kaskaskia Sequence (1)
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Woodford Shale (4)
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palynomorphs
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miospores
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pollen (1)
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paragenesis (2)
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petroleum
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natural gas
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coalbed methane (3)
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shale oil (1)
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phase equilibria (1)
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Plantae
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algae
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Coccolithophoraceae (1)
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diatoms (3)
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Pteridophyta
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Lycopsida (1)
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Spermatophyta
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Angiospermae (2)
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Gymnospermae
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Coniferae (1)
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Coniferales (2)
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plate tectonics (1)
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pollution (62)
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Precambrian
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Chuar Group (1)
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upper Precambrian
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Proterozoic
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Mesoproterozoic
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Roper Group (1)
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Neoproterozoic
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Infracambrian (1)
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Vendian (2)
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reclamation (5)
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Red Sea region (1)
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reefs (4)
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rock mechanics (1)
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sea water (2)
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sea-level changes (6)
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sedimentary petrology (4)
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sedimentary rocks
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carbonate rocks
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chalk (1)
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dolostone (5)
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grainstone (1)
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limestone
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micrite (1)
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packstone (1)
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wackestone (1)
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chemically precipitated rocks
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chert (1)
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duricrust (2)
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evaporites (3)
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clastic rocks
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bentonite (2)
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black shale (4)
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conglomerate (2)
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marl (2)
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mudstone (7)
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porcellanite (1)
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red beds (1)
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sandstone (20)
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shale (11)
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siltstone (3)
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coal (6)
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oil sands (11)
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oil shale (2)
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sedimentary structures
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biogenic structures
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algal structures
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algal mats (2)
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bioherms (1)
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bioturbation (2)
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stromatolites (1)
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planar bedding structures
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cross-bedding (1)
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secondary structures
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concretions (2)
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sedimentation (15)
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sediments
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carbonate sediments (1)
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clastic sediments
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clay (1)
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loess (1)
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mud (1)
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ooze (1)
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sand (4)
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marine sediments (4)
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peat (2)
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silicon (1)
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soils (30)
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South America
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Andes
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Eastern Cordillera (4)
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Northern Andes (1)
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Argentina
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Neuquen Basin (1)
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Brazil
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Chile (1)
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Colombia
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Venezuela
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springs (1)
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stratigraphy (2)
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sulfur
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organic sulfur (1)
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S-34/S-32 (6)
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sulfur deposits (2)
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tectonics
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salt tectonics (2)
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thallophytes (10)
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underground installations (1)
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United States
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Alabama
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Baldwin County Alabama (1)
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Alaska
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Prudhoe Bay Field (1)
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Anadarko Basin (2)
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California
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Hosgri Fault (1)
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Kern County California
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Mono County California
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Delaware
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Florida (2)
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Idaho
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Illinois
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Michigan
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Midwest (1)
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Minnesota
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Mississippi
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Montana
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Oklahoma
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Pennsylvania
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Allegheny County Pennsylvania (1)
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South Dakota (1)
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Texas
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Liberty County Texas (1)
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