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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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West Africa
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Ghana (3)
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Ivory Coast (4)
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Atlantic Ocean
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East Atlantic (1)
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Equatorial Atlantic (4)
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North Atlantic
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Cape Verde Basin (1)
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Cape Verde Rise (1)
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Gulf of Guinea (2)
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Northwest Atlantic
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Demerara Rise (1)
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South Atlantic
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Angola Basin (1)
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Walvis Ridge (1)
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West Atlantic (1)
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Indian Ocean (1)
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North America
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Western Interior
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Western Interior Seaway (1)
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Pacific Ocean (2)
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South America (1)
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elements, isotopes
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carbon
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C-13/C-12 (1)
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organic carbon (1)
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isotope ratios (2)
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isotopes
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stable isotopes
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C-13/C-12 (1)
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O-18/O-16 (2)
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metals
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iron (1)
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oxygen
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O-18/O-16 (2)
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fossils
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Invertebrata
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Protista
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Foraminifera
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Rotaliina
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Globigerinacea
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Globigerinidae
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Globigerinoides
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Globigerinoides sacculifer (1)
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Globorotaliidae
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Globorotalia (1)
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microfossils (4)
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palynomorphs
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Dinoflagellata (2)
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Plantae
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algae
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nannofossils (2)
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geochronology methods
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fission-track dating (1)
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geologic age
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Cenozoic
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Quaternary
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Pleistocene (1)
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Tertiary
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Neogene
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Miocene (2)
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Pliocene
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lower Pliocene (1)
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Paleogene
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Eocene
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middle Eocene (1)
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Oligocene (1)
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Mesozoic
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Cretaceous
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Coniacian (1)
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Santonian (1)
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minerals
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phosphates
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apatite (1)
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silicates
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framework silicates
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silica minerals
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quartz (1)
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sheet silicates
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clay minerals
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montmorillonite (1)
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smectite (1)
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mica group
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glauconite (1)
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Primary terms
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Africa
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West Africa
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Ghana (3)
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Ivory Coast (4)
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Atlantic Ocean
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East Atlantic (1)
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Equatorial Atlantic (4)
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North Atlantic
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Cape Verde Basin (1)
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Cape Verde Rise (1)
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Gulf of Guinea (2)
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Northwest Atlantic
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Demerara Rise (1)
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South Atlantic
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Angola Basin (1)
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Walvis Ridge (1)
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West Atlantic (1)
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carbon
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C-13/C-12 (1)
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organic carbon (1)
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Cenozoic
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Quaternary
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Pleistocene (1)
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Tertiary
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Neogene
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Miocene (2)
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Pliocene
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lower Pliocene (1)
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Paleogene
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Eocene
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middle Eocene (1)
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Oligocene (1)
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clay mineralogy (2)
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climate change (2)
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Deep Sea Drilling Project
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IPOD
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DSDP Site 603 (1)
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Leg 75
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DSDP Site 530 (1)
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Leg 14
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DSDP Site 144 (1)
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Leg 23
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DSDP Site 219 (1)
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Leg 39
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DSDP Site 356 (1)
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Leg 40
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DSDP Site 361 (1)
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DSDP Site 364 (1)
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Leg 41
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DSDP Site 367 (1)
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DSDP Site 368 (1)
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Leg 9
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DSDP Site 78 (1)
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faults (1)
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geochronology (1)
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geophysical methods (1)
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Indian Ocean (1)
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Invertebrata
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Protista
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Foraminifera
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Rotaliina
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Globigerinacea
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Globigerinidae
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Globigerinoides
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Globigerinoides sacculifer (1)
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Globorotaliidae
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Globorotalia (1)
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isotopes
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stable isotopes
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C-13/C-12 (1)
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O-18/O-16 (2)
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Mesozoic
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Cretaceous
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Upper Cretaceous
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Coniacian (1)
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Santonian (1)
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Senonian (1)
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metals
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iron (1)
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metamorphism (2)
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North America
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Western Interior
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Western Interior Seaway (1)
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Ocean Drilling Program
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Leg 130
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ODP Site 806 (1)
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Leg 138
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ODP Site 851 (1)
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Leg 143
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ODP Site 865 (1)
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Leg 144
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ODP Site 871 (1)
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ODP Site 872 (1)
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ODP Site 873 (1)
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Leg 154
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ODP Site 925 (1)
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Leg 159
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ODP Site 959 (9)
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ODP Site 960 (2)
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ODP Site 961 (1)
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ODP Site 962 (1)
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Leg 207
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ODP Site 1257 (1)
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oxygen
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O-18/O-16 (2)
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Pacific Ocean (2)
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paleoclimatology (2)
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paleoecology (1)
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palynomorphs
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Dinoflagellata (2)
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Plantae
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algae
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nannofossils (2)
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plate tectonics (1)
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sedimentary rocks
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clastic rocks
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black shale (2)
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sediments
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marine sediments (1)
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South America (1)
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tectonics (1)
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sedimentary rocks
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sedimentary rocks
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clastic rocks
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black shale (2)
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sediments
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sediments
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marine sediments (1)
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ODP Site 959
Millennial- to centennial-scale record of African climate variability and organic carbon accumulation in the Coniacian–Santonian eastern tropical Atlantic (Ocean Drilling Program Site 959, off Ivory Coast and Ghana)
A DEEP-WATER GLAUCONITIZATION PROCESS ON THE IVORY COAST–GHANA MARGINAL RIDGE (ODP SITE 959): DETERMINATION OF Fe 3+ -RICH MONTMORILLONITE IN GREEN GRAINS
Cyclical distribution of dispersed organic matter and dinocysts, ODP Site 959 (early Oligocene-early Miocene, Cote d'Ivoire-Ghana transform margin)
THE RATE AND MECHANISM OF DEEP-SEA GLAUCONITE FORMATION AT THE IVORY COAST–GHANA MARGINAL RIDGE
Harmful algae and export production collapse in the equatorial Atlantic during the zenith of Middle Eocene Climatic Optimum warmth
Transform tectonics and thermal rejuvenation on the Côte d’Ivoire-Ghana margin, west Africa
MUTABELLA MIRABILIS GEN. ET SP. NOV., A MIOCENE MICROPERFORATE PLANKTONIC FORAMINIFER WITH AN EXTREME LEVEL OF INTRASPECIFIC VARIABILITY
Abstract Post-Turonian (Late Cretaceous) rudist-bearing limestones of the Nurra region in northwestern Sardinia (northern Tethyan margin) and in the central-southern Apennines and Apulia (central Tethyan domain) have recorded relevant changes in the characteristics of the carbonate platforms following the “middle” Cretaceous crisis events which affected the peri-Tethyan region as well as other regions worldwide. Rudist bivalves became the dominant lithogenetic taxon owing to their proliferation in shallow-water environments and strong dominance of Late Cretaceous carbonate factories. Their inception, evolution, and demise were seemingly controlled by a complex interplay of environmental processes that, acting on a global scale, profoundly modified the Early Cretaceous hydrosphere-atmosphere system and forced Tethyan depositional systems to change their organization, internal architecture, and facies patterns. As a result, wide, open shelves developed where the almost ubiquitous mode of carbonate fixation was that of foramol factories. In this paper, evidence of the remarkable regional variability in the rudist-bearing carbonate platforms of the Mediterranean Tethys is presented. The analysis of the resulting shallow-water facies has demonstrated that, in spite of several stratigraphic similarities and common sedimentological features, some remarkable differences occurred between the northern Tethyan margin and the central Tethyan banks as regards the areal partitioning of the main paleoecologic controlling factors. This resulted in the deposition of rhodalgal successions in Sardinia (northern Tethyan margin) and rudist-rich foramol facies in the Apennine-Apulia (central Tethys) regions, respectively. Such Late Cretaceous carbonate systems can be viewed as geological products which have closely and coherently recorded the globally changing environmental conditions of the oceanic realm. In spite of this, the difference of the facies partitioning in different Tethyan regions according to a latitudinal gradient is interpreted as derived mainly from local variable paleoceanographic and paleoclimatic conditions.