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NARROW
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Central Africa
-
Congo (1)
-
-
North Africa
-
Morocco
-
Rif (1)
-
-
-
Southern Africa
-
Karoo Basin (2)
-
Namibia (1)
-
South Africa
-
Eastern Cape Province South Africa (1)
-
-
-
West Africa
-
Ghana (1)
-
Nigeria
-
Niger Delta (1)
-
-
-
-
Antarctica (1)
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Arctic Ocean
-
Alpha Cordillera (1)
-
Barents Sea (1)
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Lomonosov Ridge (1)
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Norwegian Sea
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Jan Mayen Ridge (1)
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More Basin (4)
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Voring Basin (4)
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Voring Plateau (5)
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Arctic region
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Greenland
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East Greenland (6)
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Kangerlussuaq (3)
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West Greenland (1)
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Jan Mayen (1)
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Russian Arctic
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Franz Josef Land (1)
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Svalbard (4)
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Asia
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Indian Peninsula
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India
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Andhra Pradesh India (1)
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Gujarat India
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Saurashtra (1)
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Indus Basin (1)
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Pakistan (1)
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Sakhalin Russian Federation
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Sakhalin (1)
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Atlantic Ocean
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East Atlantic (1)
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North Atlantic
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Faeroe-Shetland Basin (39)
-
Gulf of Guinea (1)
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Gulf of Mexico (2)
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Irish Sea (3)
-
Labrador Sea
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Labrador Shelf (1)
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North Sea
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East Shetland Basin (1)
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Forties Field (1)
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Norwegian Channel (1)
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Snorre Field (1)
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Viking Graben (1)
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Northeast Atlantic (21)
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Northwest Atlantic (1)
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Porcupine Basin (1)
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Reykjanes Ridge (1)
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Rockall Plateau (3)
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Rockall Trough (8)
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Scotian Shelf (1)
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Scotian Slope (1)
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South Atlantic
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Espirito Santo Basin (1)
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Atlantic Ocean Islands
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Faeroe Islands (21)
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Shetland Islands (13)
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Australasia
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Western Canada
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Central Graben (2)
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Commonwealth of Independent States
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Russian Federation
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Russian Arctic
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Denmark Strait (1)
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Scotland
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Mull Island (1)
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Great Glen Fault (1)
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Hebrides
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Inner Hebrides
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Isle of Skye (4)
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Mull Island (1)
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Highland region Scotland
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Ardnamurchan (1)
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Inverness-shire Scotland
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Isle of Skye (4)
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Moine thrust zone (2)
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Moray Firth (2)
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Orkney Islands (1)
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Scottish Highlands
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Grampian Highlands (1)
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Shetland Islands (13)
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Wales
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Glamorgan Wales
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Gower Peninsula (1)
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Welsh Basin (1)
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Northern Ireland (1)
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Highland Boundary Fault (1)
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Indian Ocean
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ODP Site 642 (1)
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West Pacific
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elements, isotopes
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isotopes
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stable isotopes
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metals
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calcium
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iron (1)
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lead (2)
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rare earths (3)
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nitrogen
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oxygen
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O-18 (1)
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O-18/O-16 (6)
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phosphorus (1)
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fossils
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Chordata
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Vertebrata
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Pisces
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Chondrichthyes
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Elasmobranchii (1)
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ichnofossils (1)
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Invertebrata
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Arthropoda
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Mandibulata
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Crustacea
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Ostracoda (1)
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Protista
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Foraminifera
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Rotaliina
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Cassidulinacea
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Cassidulina (1)
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-
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Radiolaria (3)
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-
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microfossils (13)
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palynomorphs
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Dinoflagellata (6)
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miospores
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pollen (1)
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Plantae
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algae
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Coccolithophoraceae (2)
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diatoms (2)
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geochronology methods
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geologic age
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lower Paleogene (2)
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Paleozoic
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Upper Carboniferous
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Devonian
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upper Precambrian
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Proterozoic
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Paleoproterozoic (1)
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Rhenohercynian (1)
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igneous rocks
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volcanic rocks
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tholeiite (1)
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trap rocks (1)
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dacites (1)
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pyroclastics
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rhyolites (1)
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trachyandesites (1)
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native elements
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silicates
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opal
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zeolite group (2)
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orthosilicates
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garnet group (1)
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zircon group
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zircon (2)
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sheet silicates
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clay minerals
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illite (1)
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mica group
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glauconite (1)
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-
-
-
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Primary terms
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absolute age (5)
-
Africa
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Central Africa
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Congo (1)
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North Africa
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Morocco
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Rif (1)
-
-
-
Southern Africa
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Karoo Basin (2)
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Namibia (1)
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South Africa
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Eastern Cape Province South Africa (1)
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-
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West Africa
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Ghana (1)
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Nigeria
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Niger Delta (1)
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-
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Antarctica (1)
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Arctic Ocean
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Barents Sea (1)
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Norwegian Sea
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Arctic region
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Jan Mayen (1)
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Asia
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Indus Basin (1)
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Sakhalin Russian Federation
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Atlantic Ocean
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East Atlantic (1)
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North Atlantic
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Faeroe-Shetland Basin (39)
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Gulf of Guinea (1)
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Gulf of Mexico (2)
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Irish Sea (3)
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Labrador Sea
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Labrador Shelf (1)
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North Sea
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East Shetland Basin (1)
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Forties Field (1)
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Norwegian Channel (1)
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Snorre Field (1)
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Viking Graben (1)
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Northeast Atlantic (21)
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Northwest Atlantic (1)
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Porcupine Basin (1)
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Reykjanes Ridge (1)
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Rockall Plateau (3)
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Rockall Trough (8)
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Scotian Shelf (1)
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Scotian Slope (1)
-
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South Atlantic
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Espirito Santo Basin (1)
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Southeast Atlantic (1)
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Atlantic Ocean Islands
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Faeroe Islands (21)
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Shetland Islands (13)
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Australasia
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Australia
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Adelaide Geosyncline (1)
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bibliography (2)
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Canada
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Eastern Canada
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Western Canada
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carbon
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C-13/C-12 (4)
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C-14 (2)
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organic carbon (1)
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Cenozoic
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lower Cenozoic (1)
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middle Cenozoic (1)
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Quaternary
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Holocene (4)
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Pleistocene
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upper Pleistocene
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Devensian
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upper Devensian (1)
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Wisconsinan
-
upper Wisconsinan (1)
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-
-
-
upper Quaternary (1)
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-
Tertiary
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lower Tertiary (2)
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Neogene
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Miocene (4)
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Pliocene (4)
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Paleogene
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Eocene
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lower Eocene
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Ypresian (3)
-
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middle Eocene
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Bartonian (1)
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Lutetian (1)
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-
upper Eocene
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Priabonian (1)
-
-
-
lower Paleogene (2)
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Oligocene (3)
-
Paleocene
-
lower Paleocene
-
Danian (1)
-
-
upper Paleocene
-
Thanetian (2)
-
-
-
Paleocene-Eocene Thermal Maximum (1)
-
-
-
upper Cenozoic (4)
-
-
Chordata
-
Vertebrata
-
Pisces
-
Chondrichthyes
-
Elasmobranchii (1)
-
-
-
-
-
clay mineralogy (1)
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crust (16)
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data processing (8)
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Deep Sea Drilling Project
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IPOD
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Leg 81
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deformation (10)
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diagenesis (9)
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earthquakes (2)
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Europe
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Pyrenees (1)
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Southern Europe
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Greece (1)
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Spain
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Variscides (1)
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Western Europe
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France (1)
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Vesteralen (1)
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United Kingdom
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England
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London Basin (1)
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Wessex Basin (1)
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Scotland
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Argyllshire Scotland
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Mull Island (1)
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-
Great Glen Fault (1)
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Hebrides
-
Inner Hebrides
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Isle of Skye (4)
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Mull Island (1)
-
-
-
Highland region Scotland
-
Ardnamurchan (1)
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Inverness-shire Scotland
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Isle of Skye (4)
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-
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Moine thrust zone (2)
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Moray Firth (2)
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Orkney Islands (1)
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Scottish Highlands
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Grampian Highlands (1)
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Shetland Islands (13)
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-
Wales
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Glamorgan Wales
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Welsh Basin (1)
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Northern Ireland (1)
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faults (25)
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plutonic rocks
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diabase (2)
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granites (1)
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ultramafics (1)
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volcanic rocks
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basalts
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flood basalts (8)
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mid-ocean ridge basalts (4)
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tholeiite (1)
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trap rocks (1)
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dacites (1)
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pyroclastics
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hyaloclastite (2)
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tuff (2)
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rhyolites (1)
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trachyandesites (1)
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trachytes (1)
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inclusions
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fluid inclusions (1)
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Indian Ocean
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Arabian Sea
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Indus Fan (1)
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Bay of Bengal (2)
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Integrated Ocean Drilling Program
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Expeditions 303/306
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Expedition 306 (1)
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intrusions (23)
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Invertebrata
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Arthropoda
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Mandibulata
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Crustacea
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Ostracoda (1)
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-
-
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Protista
-
Foraminifera
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Rotaliina
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Cassidulinacea
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Cassidulina (1)
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Radiolaria (3)
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isostasy (2)
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isotopes
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radioactive isotopes
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C-14 (2)
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Faeroe-Shetland Channel
Circulation changes in the Faeroe-Shetland Channel correlating with cold events during the last glacial period (58–10 ka)
Structural and Stratigraphic Evolution of the Faeroe-Shetland Channel and Northern Rockall Trough
Abstract Beneath the continental shelf north and west of Scotland, the upper crust consists of half-graben basins formed by extension and subsidence during the Devonian to Carboniferous and Permian to Jurassic periods. They developed on listric faults which dip southeastward and sole into a detachment surface previously used to emplace thrust sheets during the Caledonian orogeny, and subsequently used to invert the basins in the Tertiary. West of the shelf is the deep Rockall Trough, which overlies a rift basin floored by intruded and very thin continental crust; this rift is a branch of the North Atlantic system, and extension began in the late Middle Jurassic. The rift continues north-ward and underlies the Faeroe-Shetland Channel, but is offset at the Orkney-Faeroe alignment, a cross-cutting tectonic element of early Paleozoic age or older. Sediment distribution, thickness, and fades were strongly influenced by faulting, uplift, and subsidence. Regional paleorelief became lower with time, and prevailing conditions evolved from continental during the Devonian to marine during the Late Jurassic to Tertiary.
Figure 2. (A) Map of the Faeroe-Shetland channel (bathy metric contours in ...
Figure 3. (A) Map of the Faeroe-Shetland channel (bathymetric contours in m...
Regional 2-D seismic display along the axis of the Faeroe–Shetland Channel ...
Mapping hydrate stability zones offshore Scotland
Abstract One practical method to reduce environmentally damaging greenhouse gas emissions is through the geological storage of carbon dioxide. Deep, warm storage of carbon dioxide is currently taking place at Sleipner, North Sea and Weyburn, Canada. It is, however, also possible to store carbon dioxide as a liquid and hydrate in cool, sub-seabed sediments. Offshore north and west of Scotland seafloor pressures and temperatures are suitable for hydrate formation. In addition to the possibility of natural methane hydrate being present in this region, conditions may also be favourable for carbon dioxide storage as a liquid and hydrate. A computer program has been developed to calculate the depth to the base of the carbon dioxide and methane hydrate stability zones in two offshore regions: the Faeroe–Shetland Channel and the northern Rockall Trough. Results predict that methane hydrate remains stable to a maximum depth of 650 m below the seabed in the Faeroe–Shetland Channel, and 600 m below the seabed in the northern Rockall Trough; the carbon dioxide hydrate stability zone extends below the seabed to a depth of 345 and 280 m, respectively. No physical evidence for the existence of natural hydrate in these regions has been confirmed. Suitable conditions for carbon dioxide storage as a liquid and hydrate exist, and should this storage method be developed further, a more refined program and greater offshore investigations to improve data sets would be necessary to scope the full potential.
Abstract The late Neogene (Pliocene–Holocene) interval witnessed a significant change in sedimentation style across the UK Atlantic margin that culminated in its present morphological expression. The onset of change is marked by the creation of a regional, angular, erosional unconformity that can be traced from the Hebrides and West Shetland margins into the adjacent deep-water basins of the Rockall Trough and Faeroe-Shetland Channel. In the Rockall Trough, the unconformity is a submarine erosion surface that is dated as early Pliocene in age, between c. 3.85 and 4.5 Ma. On the Hebrides and West Shetland margins, the dating of the unconformity is slightly less well constrained and spans the latest Miocene(?)–early Pliocene (c. 5.5-3.8 Ma) interval. The formation of this unconformity may have resulted from the seaward tilting and subsidence of the shelf margin, which may have further modified the oceanographic circulation pattern in the adjacent basins. The sedimentary response to this event was relatively quick in the deep-water basins, which preserve a record of early Pliocene (post 3.85 Ma) to Holocene sediment-drift accumulation, albeit with a shift in the focus of sedimentation relative to the underlying strata. In contrast, major prograding wedges, which have contributed extensively to the construction of the Hebrides and West Shetland margins and to a lesser extent the Rockall Bank, date essentially from late Pliocene time and largely correlate with the influx of ice-rafted material to the margin. However, indications for a restricted lower Pliocene component to the shelf-margin succession suggest that this apparent delay or lag in sedimentation, relative to the basins, may be a natural response to the rate of denudation of the adjacent landmasses. The regional observations off NW Britain support the concept of Neogene tectonic uplift.
Abstract Considerable crustal stretching is required to create a basin that has water depths in excess of 500m. The character, magnitude, and timing of crustal stretching has important implications for the petroleum system particularly with respect to basin structuring, heat flow and source-rock distribution, quality, and maturity. Nowhere does understanding the crustal-stretching history have more importance than in deep water basins, such as the West Shetland basin-system, where the source rocks were deposited before the main rift-events.