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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Antarctica
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Antarctic Peninsula (1)
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Arctic Ocean
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Barents Sea (1)
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Atlantic Ocean
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North Atlantic
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Bay of Biscay (1)
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Gulf of Cadiz (1)
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Northeast Atlantic (1)
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Porcupine Basin (1)
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Europe (1)
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Mediterranean Sea
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West Mediterranean
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Alboran Sea (1)
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Southern Ocean
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Bellingshausen Sea (1)
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Bransfield Strait (1)
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Weddell Sea (1)
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fossils
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Invertebrata
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Cnidaria
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Anthozoa (1)
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Protista
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Foraminifera (1)
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microfossils (2)
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palynomorphs
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Dinoflagellata (1)
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Plantae
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Pteridophyta
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Lycopsida
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Lycopodium (1)
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geochronology methods
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paleomagnetism (1)
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Th/U (1)
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geologic age
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Cenozoic
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Quaternary
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Holocene (1)
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Pleistocene
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middle Pleistocene (1)
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Tertiary
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Neogene
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Miocene
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lower Miocene (1)
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middle Miocene (1)
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Mesozoic
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Cretaceous
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Middle Cretaceous (1)
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Upper Cretaceous (1)
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Primary terms
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absolute age (1)
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Antarctica
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Antarctic Peninsula (1)
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Arctic Ocean
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Barents Sea (1)
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Atlantic Ocean
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North Atlantic
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Bay of Biscay (1)
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Gulf of Cadiz (1)
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Northeast Atlantic (1)
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Porcupine Basin (1)
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biogeography (1)
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Cenozoic
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Quaternary
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Holocene (1)
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Pleistocene
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middle Pleistocene (1)
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Tertiary
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Neogene
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Miocene
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lower Miocene (1)
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middle Miocene (1)
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climate change (1)
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continental slope (1)
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Europe (1)
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geophysical methods (3)
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glacial geology (1)
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Integrated Ocean Drilling Program
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Expedition 307
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IODP Site U1318 (1)
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Invertebrata
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Cnidaria
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Anthozoa (1)
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Protista
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Foraminifera (1)
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Mediterranean Sea
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West Mediterranean
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Alboran Sea (1)
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Mesozoic
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Cretaceous
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Middle Cretaceous (1)
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Upper Cretaceous (1)
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ocean basins (1)
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ocean circulation (2)
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ocean floors (1)
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paleoclimatology (3)
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paleoecology (3)
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paleomagnetism (1)
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palynomorphs
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Dinoflagellata (1)
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Plantae
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Pteridophyta
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Lycopsida
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Lycopodium (1)
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reefs (1)
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sea water (1)
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sedimentation (2)
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sediments
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marine sediments (2)
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Southern Ocean
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Bellingshausen Sea (1)
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Bransfield Strait (1)
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Weddell Sea (1)
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sedimentary rocks
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contourite (2)
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sedimentary structures
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mounds (1)
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sediments
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contourite (2)
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sediments
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marine sediments (2)
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Deep-water circulation in the northeast Atlantic during the mid- and Late Cretaceous
Episodic postglacial deltaic pulses in the Gulf of Cadiz: Implications for the development of a transgressive shelf and driving environmental conditions
Oceanographic consequences of the Bransfield Strait (Antarctica) opening
Contourites along the Iberian continental margins: conceptual and economic implications
Abstract This work uses seismic records to document and classify contourite features around the Iberian continental margin to determine their implications for depositional systems and petroleum exploration. Contourites include depositional features (separated, sheeted, plastered and confined drifts), erosional features (abraded surfaces, channels, furrows and moats) and mixed features (contourite terraces). Drifts generally show high- to moderate-amplitude reflectors, which are cyclically intercalated with transparent layers. Transparent layers may represent finer-grained deposits, which can serve as seal rocks. High-amplitude reflectors (HARs) are likely to represent sandier layers, which could form hydrocarbon reservoirs. HARs occur on erosive features (moats and channels), and are clearly developed on contourite terraces and overflow features. Most of the contourite features described here are influenced by Mediterranean water masses throughout their Pliocene and Quaternary history. They specifically record Mediterranean Outflow Water, following its exit through the Gibraltar Strait. This work gives a detailed report on the variation of modern contourite deposits, which can help inform ancient contourite reservoir interpretation. Further research correlating 2D and 3D seismic anomalies with core and well-logging data is needed to develop better diagnostic criteria for contourites. This can help to clarify the role of contourites in petroleum systems.