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all geography including DSDP/ODP Sites and Legs
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Africa
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North Africa
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Algeria (1)
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Egypt (1)
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Sahara (1)
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Northern Cape Province South Africa
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Commonwealth of Independent States
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Russian Federation
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Oceania
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Pacific Ocean
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Equatorial Pacific (4)
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North Pacific
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Northeast Pacific
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Clarion fracture zone (5)
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South Pacific (3)
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South America
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Brazil
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United States
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California
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Colorado
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Iowa
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Missouri
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Pennsylvania (1)
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Tennessee
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Texas
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commodities
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lead-zinc deposits (1)
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manganese ores (15)
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polymetallic ores (6)
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mineral deposits, genesis (16)
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mineral exploration (11)
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petroleum
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shale oil (1)
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phosphate deposits (4)
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placers (3)
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elements, isotopes
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carbon
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C-13/C-12 (5)
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C-14 (2)
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organic carbon (2)
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chemical ratios (3)
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halogens
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fluorine (1)
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hydrogen
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D/H (1)
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deuterium (1)
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isotope ratios (8)
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isotopes
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radioactive isotopes
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C-14 (2)
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Rb-87/Sr-86 (1)
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Th-230 (1)
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Th-232/Th-230 (1)
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U-238/U-234 (1)
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stable isotopes
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C-13/C-12 (5)
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D/H (1)
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deuterium (1)
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Nd-144/Nd-143 (2)
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O-18/O-16 (7)
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Rb-87/Sr-86 (1)
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S-34/S-32 (2)
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metals
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actinides
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thorium
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Th-230 (1)
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Th-232/Th-230 (1)
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uranium
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U-238/U-234 (1)
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alkali metals
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potassium (2)
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rubidium
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Rb-87/Sr-86 (1)
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alkaline earth metals
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barium (1)
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calcium (1)
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magnesium (3)
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strontium
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Rb-87/Sr-86 (1)
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aluminum (1)
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arsenic (2)
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cadmium (1)
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chromium (1)
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cobalt (5)
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copper (8)
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iron (18)
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nickel (10)
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platinum (1)
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rare earths
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cerium (1)
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neodymium
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Nd-144/Nd-143 (2)
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samarium (1)
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titanium (2)
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zinc (3)
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oxygen
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O-18/O-16 (7)
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phosphorus (2)
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silicon (3)
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sulfur
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diatoms (4)
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Rhodophyta
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Corallinaceae (2)
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problematic fossils
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problematic microfossils (1)
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thallophytes (10)
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geochronology methods
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U/Pb (1)
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geologic age
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Cenozoic
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Quaternary
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Holocene
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upper Holocene (1)
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upper Pleistocene (1)
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Tertiary
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Neogene
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middle Miocene (1)
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upper Miocene (1)
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Pliocene (2)
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Paleogene
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Green River Formation (1)
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lower Eocene
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London Clay (1)
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Oligocene
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Paleocene
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lower Paleocene (1)
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Paleocene-Eocene Thermal Maximum (1)
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Tulare Formation (1)
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upper Cenozoic (1)
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Mesozoic
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Cretaceous
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Upper Cretaceous
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Jurassic
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Upper Jurassic
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Triassic
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Lower Triassic
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Permian-Triassic boundary (1)
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Paleozoic
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Cambrian
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Lower Cambrian (2)
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Carboniferous
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Mississippian
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Lower Mississippian
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Fort Payne Formation (2)
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Osagian
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Burlington Limestone (2)
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Tournaisian (1)
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Middle Mississippian (1)
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Upper Mississippian
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Meramecian
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Saint Louis Limestone (1)
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Warsaw Formation (2)
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Pennsylvanian
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Paradox Formation (1)
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Pottsville Group (1)
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Upper Pennsylvanian
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Virgilian
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Devonian
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Lower Devonian (1)
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Permian
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Guadalupian
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Capitanian (1)
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Seven Rivers Formation (1)
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Tansill Formation (1)
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Upper Permian
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Permian-Triassic boundary (1)
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Yates Formation (1)
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Silurian
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Phanerozoic (1)
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Precambrian
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Archean
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upper Precambrian
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Proterozoic
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manganese minerals (5)
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minerals (23)
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native elements
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epidote group
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ring silicates
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tourmaline group (2)
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sheet silicates
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chlorite group
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chlorite (2)
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clay minerals
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illite (3)
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mica group
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glauconite (4)
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muscovite (1)
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phlogopite (1)
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palygorskite (1)
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sulfates
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anhydrite (2)
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sulfides
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Primary terms
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Transvaal region (1)
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asteroids (1)
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carbon
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C-13/C-12 (5)
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organic carbon (2)
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Caribbean region
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Cenozoic
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Quaternary
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Tertiary
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Oligocene
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Paleocene
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Paleocene-Eocene Thermal Maximum (1)
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Tulare Formation (1)
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chemical analysis (2)
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Chordata
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Vertebrata
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clay mineralogy (5)
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Deep Sea Drilling Project
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Leg 17
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DSDP Site 164 (1)
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DSDP Site 166 (1)
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deformation (2)
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diagenesis (33)
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Europe
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Scotland
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Highland region Scotland
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faults (2)
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igneous rocks
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ultramafics
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pyroxenite
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clinopyroxenite (1)
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volcanic rocks
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basalts (3)
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glasses (2)
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pyroclastics (1)
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inclusions
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fluid inclusions (1)
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Indian Ocean
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industrial minerals (1)
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intrusions (5)
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Invertebrata
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Arthropoda
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Trilobita (1)
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Brachiopoda (4)
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Cnidaria
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Hydrozoa (1)
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Echinodermata
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Crinozoa
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Crinoidea (4)
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Mollusca
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Cephalopoda
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Ammonoidea (1)
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Gastropoda (1)
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Porifera (2)
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Protista
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Foraminifera
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Textulariina (1)
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Radiolaria (5)
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-
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isotopes
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radioactive isotopes
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C-14 (2)
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Rb-87/Sr-86 (1)
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Th-230 (1)
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stable isotopes
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C-13/C-12 (5)
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D/H (1)
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deuterium (1)
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Nd-144/Nd-143 (2)
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O-18/O-16 (7)
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Rb-87/Sr-86 (1)
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S-34/S-32 (2)
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-
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magmas (2)
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mantle (4)
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maps (1)
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marine geology (8)
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Mediterranean region
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Aegean Islands
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Greek Aegean Islands (1)
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Mediterranean Sea
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West Mediterranean
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Tyrrhenian Sea (1)
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-
-
Mesozoic
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Cretaceous
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Lower Cretaceous
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Aptian (1)
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Upper Cretaceous
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Coniacian (1)
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Maestrichtian (1)
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Santonian (1)
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Senonian (2)
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-
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Jurassic
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Upper Jurassic
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Oxfordian (1)
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Portlandian (1)
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Tithonian (1)
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-
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Triassic
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Lower Triassic
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Permian-Triassic boundary (1)
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-
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metal ores
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aluminum ores (1)
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base metals (1)
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cobalt ores (2)
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copper ores (3)
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gold ores (1)
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lead ores (3)
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manganese ores (15)
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polymetallic ores (6)
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silver ores (1)
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metals
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actinides
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thorium
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Th-230 (1)
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Th-232/Th-230 (1)
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uranium
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U-238/U-234 (1)
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alkali metals
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potassium (2)
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rubidium
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Rb-87/Sr-86 (1)
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alkaline earth metals
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barium (1)
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magnesium (3)
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strontium
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Rb-87/Sr-86 (1)
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-
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aluminum (1)
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arsenic (2)
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cadmium (1)
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chromium (1)
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cobalt (5)
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copper (8)
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iron (18)
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platinum (1)
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rare earths
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cerium (1)
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neodymium
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Nd-144/Nd-143 (2)
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samarium (1)
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titanium (2)
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zinc (3)
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metamorphic rocks
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eclogite (2)
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metamorphism (5)
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Mexico
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La Popa Basin (1)
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mineral deposits, genesis (16)
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minerals (23)
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North America
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Rocky Mountains (1)
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Northern Hemisphere (1)
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ocean basins (2)
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Ocean Drilling Program
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Leg 139 (1)
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Leg 169 (1)
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Leg 208
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ODP Site 1262 (1)
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ocean floors (23)
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Oceania
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Polynesia
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French Polynesia
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Tuamotu Islands (1)
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Hawaii (1)
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oceanography (29)
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oxygen
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O-18/O-16 (7)
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Pacific Ocean
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Central Pacific (2)
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East Pacific
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Carnegie Ridge (1)
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Northeast Pacific
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Clarion fracture zone (5)
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Clipperton fracture zone (5)
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Juan de Fuca Ridge (1)
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Panama Basin (1)
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Equatorial Pacific (4)
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North Pacific
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Northeast Pacific
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Clarion fracture zone (5)
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Clipperton fracture zone (5)
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Juan de Fuca Ridge (1)
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South Pacific (3)
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paleobotany (2)
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Paleozoic
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Cambrian
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Lower Cambrian (2)
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Carboniferous
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Mississippian
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Lower Mississippian
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Fort Payne Formation (2)
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Osagian
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Burlington Limestone (2)
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Tournaisian (1)
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Middle Mississippian (1)
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Upper Mississippian
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Meramecian
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Saint Louis Limestone (1)
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Warsaw Formation (2)
-
-
-
-
Pennsylvanian
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Hermosa Group (1)
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Middle Pennsylvanian
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Paradox Formation (1)
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Pottsville Group (1)
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Upper Pennsylvanian
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Virgilian
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Douglas Group (1)
-
-
-
-
-
Devonian
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Lower Devonian (1)
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Middle Devonian (1)
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Permian
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Guadalupian
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Capitanian (1)
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Seven Rivers Formation (1)
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Tansill Formation (1)
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-
Upper Permian
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Permian-Triassic boundary (1)
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Yates Formation (1)
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Silurian
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Middle Silurian (1)
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Niagaran (1)
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paragenesis (3)
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petroleum
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natural gas (1)
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petrology (7)
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Phanerozoic (1)
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phase equilibria (3)
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phosphate deposits (4)
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phosphorus (2)
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placers (3)
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Plantae
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algae
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calcareous algae (1)
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Chlorophyta
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Chlorophyceae
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Codiaceae (1)
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Chrysophyta (1)
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Coccolithophoraceae (3)
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diatoms (4)
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Rhodophyta
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Corallinaceae (2)
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-
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plate tectonics (2)
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pollution (1)
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Precambrian
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Archean
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Mesoarchean (1)
-
-
upper Precambrian
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Proterozoic
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Great Oxidation Event (1)
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Mesoproterozoic (1)
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Neoproterozoic (1)
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-
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Witwatersrand Supergroup (1)
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-
problematic fossils
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problematic microfossils (1)
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sea water (4)
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sea-floor spreading (4)
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sea-level changes (2)
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sedimentary petrology (34)
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sedimentary rocks
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bauxite (1)
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carbonate rocks
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dolostone (1)
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grainstone (1)
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limestone
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calcarenite (2)
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micrite (1)
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-
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chemically precipitated rocks
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chert (13)
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duricrust (1)
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evaporites (7)
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ironstone (1)
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phosphate rocks (10)
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weathering crust (1)
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clastic rocks
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black shale (5)
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claystone (2)
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conglomerate (1)
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marl (1)
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mudstone (2)
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porcellanite (1)
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radiolarite (4)
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red beds (3)
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shale (4)
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coal (1)
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oil shale (1)
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sedimentary structures
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bedding plane irregularities
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sand waves (1)
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biogenic structures
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algal structures
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algal mats (3)
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bioturbation (2)
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planar bedding structures
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bedding (2)
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cross-stratification (1)
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rhythmic bedding (1)
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secondary structures
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concretions (18)
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geodes (1)
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soft sediment deformation
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turbidity current structures
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load casts (1)
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sedimentation (35)
-
sediments
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carbonate sediments (4)
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clastic sediments
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clay (4)
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loess (1)
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mud (1)
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ooze (1)
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sand (1)
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marine sediments (13)
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silicon (3)
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slope stability (1)
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soils
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South America
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Amazon Basin (1)
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Brazil
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Para Brazil (1)
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Chile (1)
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stratigraphy (10)
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sulfur
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S-34/S-32 (2)
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tectonics (1)
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United States
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Alaska (1)
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California
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Merced County California (1)
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Colorado
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Delaware Basin (1)
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Florida
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Iowa
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Kansas
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Kentucky
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Louisiana
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New Mexico (1)
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Texas
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Utah (1)
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Washington (1)
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weathering (6)
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X-ray analysis (5)
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rock formations
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Siberian Traps (1)
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sedimentary rocks
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calcrete (1)
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caliche (1)
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oolite (2)
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sedimentary rocks
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carbonate rocks
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grainstone (1)
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limestone
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micrite (1)
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chemically precipitated rocks
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chert (13)
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duricrust (1)
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evaporites (7)
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ironstone (1)
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phosphate rocks (10)
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weathering crust (1)
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clastic rocks
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black shale (5)
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claystone (2)
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conglomerate (1)
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marl (1)
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mudstone (2)
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1-20 OF 195 RESULTS FOR
nodules
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Journal Article
Origin and paleo-oceanic conditions of Guadalupian bedded chert in the northern margin of the Upper Yangtze region: Implication for marine anoxia and the Permian Chert Event Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 08 January 2025
GSA Bulletin (2025) 137 (5-6): 2545–2564.
Journal Article
A Glimpse at Some Momentous Recent Discoveries and Developments in Geosciences Available to Purchase
Publisher: Geological Society of India
Published: 01 January 2025
Jour. Geol. Soc. India (2025) 101 (1): 5–9.
Journal Article
Alterations of High-Carbon (Shungite) Rocks by the Lake Onega Waters: Mineralogy and Geochemistry of the Process Available to Purchase
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 July 2024
Russ. Geol. Geophys. (2024) 65 (7): 848–858.
Journal Article
HIGHLY BIOERODED RHODOLITHS FROM THE VITÓRIA-TRINDADE SEAMOUNT CHAIN (BRAZIL, SOUTHWESTERN ATLANTIC) Available to Purchase
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
Published: 11 June 2024
PALAIOS (2024) 39 (5): 161–173.
Journal Article
Mineralogy of the 1.45 Ga Wafangzi manganese deposit in North China: Implications for pulsed Mesoproterozoic oxygenation events Available to Purchase
Hao Yan, Lingang Xu, Jingwen Mao, Dongjie Tang, Xiuqing Yang, Yinzeng Bai, Chao Li, Kurt O. Konhauser, Leslie J. Robbins
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 April 2024
American Mineralogist (2024) 109 (4): 764–784.
Includes: Supplemental Content
Journal Article
The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part V. Zilbermintsite-(La), (CaLa 5 )(Fe 3+ Al 3 Fe 2+ )[Si 2 O 7 ][SiO 4 ] 5 O(OH) 3 , a new mineral with ET2 type structure and a definition of the radekškodaite group Available to Purchase
Anatoly V. Kasatkin, Natalia V. Zubkova, Radek Škoda, Igor V. Pekov, Atali A. Agakhanov, Vladislav V. Gurzhiy, Dmitriy A. Ksenofontov, Dmitriy I. Belakovskiy, Aleksey M. Kuznetsov
Journal: Mineralogical Magazine
Published: 21 March 2024
Mineralogical Magazine (2024) 88 (3): 302–311.
Journal Article
Pedostratigraphic age model for Devonian red beds of NW China Available to Purchase
Journal: Journal of the Geological Society
Publisher: Geological Society of London
Published: 21 February 2024
Journal of the Geological Society (2024) 181 (2): jgs2023-096.
Journal Article
Dr John Grant Malcolmson and a reconciliation of the Middle Devonian Lethen Bar and Lethen House fish-bearing nodule localities, with notes on the Middle Devonian nodule beds of the Moray Firth area Open Access
Journal: Scottish Journal of Geology
Publisher: Geological Society of London
Published: 08 January 2024
Scottish Journal of Geology (2024) 60 (1): sjg2023-011.
Journal Article
NEW QUANTITATIVE DESCRIPTORS (SHAPE AND MACROBORING) OF BIOGENIC NODULES: EXAMPLES FROM THE LESSER ANTILLES AND NEW ZEALAND Available to Purchase
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
Published: 20 December 2023
PALAIOS (2023) 38 (12): 491–505.
Journal Article
U-Pb dating of pedogenic calcite near the Permian–Triassic boundary, Karoo Basin, South Africa Available to Purchase
Heriberto Rochín-Bañaga, Robert A. Gastaldo, Donald W. Davis, Johann Neveling, Sandra L. Kamo, Cindy V. Looy, John W. Geissman
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 23 August 2023
GSA Bulletin (2024) 136 (3-4): 1689–1700.
Journal Article
Another Look at Marine Minerals Available to Purchase
Journal: SEG Discovery
Publisher: Society of Economic Geologists
Published: 01 July 2023
SEG Discovery (2023) (134): 19–30.
Journal Article
Manganese carbonate-bearing mudstone of the Witwatersrand-Mozaan succession in southern Africa as evidence for bacterial manganese respiration and availability of free molecular oxygen in Mesoarchaean oceans Available to Purchase
Journal: South African Journal of Geology
Publisher: Geological Society of South Africa
Published: 01 March 2023
South African Journal of Geology (2023) 126 (1): 29–48.
Journal Article
Oxidation of arcs and mantle wedges by reduction of manganese in pelagic sediments during seafloor subduction Available to Purchase
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 03 October 2022
American Mineralogist (2022) 107 (10): 1850–1857.
Journal Article
Interaction between Basaltic Melt and Coal Xenoliths in the Trap Intrusion of Mt. Ozernaya (Siberian Platform) Available to Purchase
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 August 2022
Russ. Geol. Geophys. (2022) 63 (8): 915–925.
Journal Article
Orbicular and Nodular Structures in Carbonatite of the Sung Valley Ultramafic-Alkaline-Carbonatite Complex, Shillong Plateau, Meghalaya, NE India: Their Petrogenetic Implications Available to Purchase
Publisher: Geological Society of India
Published: 01 May 2022
Jour. Geol. Soc. India (2022) 98 (5): 635–640.
Journal Article
Processing of seismic diffractions from carbonate nodules in clay formations Available to Purchase
Cinzia Bellezza, Flavio Poletto, Biancamaria Farina, Giorgia Pinna, Laurent Wouters, Noël Vandenberghe, Elio Poggiagliolmi
Journal: Geophysics
Publisher: Society of Exploration Geophysicists
Published: 15 February 2022
Geophysics (2022) 87 (2): D67–D81.
Journal Article
Biogeochemical formation of metalliferous laminations in surficial environments Available to Purchase
Anicia Henne, Dave Craw, Jessica Hamilton, Anat Paz, Gemma Kerr, David Paterson, Jeremiah Shuster, Gordon Southam
Journal: Mineralogical Magazine
Published: 28 January 2021
Mineralogical Magazine (2021) 85 (1): 49–67.
Journal Article
In situ rare earth element analysis of a lower Cambrian phosphate nodule by LA-ICP-MS Available to Purchase
Journal: Geological Magazine
Publisher: Cambridge University Press
Published: 04 September 2020
Geological Magazine (2021) 158 (4): 749–758.
Journal Article
Silica diagenesis promotes early primary hydrocarbon migration Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 18 March 2020
Geology (2020) 48 (5): 483–487.
Journal Article
Environmental predictors of deep-sea polymetallic nodule occurrence in the global ocean Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 03 January 2020
Geology (2020) 48 (3): 293–297.
1
GeoRef Thesaurus
nodules
Scope Notes: As of 1981, restricted to nodules on the ocean floor, nodules within sediments in the ocean, and nodules in lakes. For nodules in non-sedimentary formations, use xenoliths. For nodules within sedimentary formations, such as chert nodules, use concretions. As of 2001, also see ferromanganese crusts.
See Also:
Use For Term:
manganese nodules
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