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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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Southern Africa
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Karoo Basin (1)
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Namibia
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Tsumeb Namibia (1)
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South Africa
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Bushveld Complex (3)
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Merensky Reef (2)
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North-West Province South Africa (1)
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Transvaal region (2)
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West Africa
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Nigeria (1)
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Antarctica
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Antarctic Peninsula (1)
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Queen Maud Land (1)
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Arctic Ocean
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Norwegian Sea
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Voring Basin (1)
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Voring Plateau (1)
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Arctic region
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Greenland
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East Greenland (3)
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Skaergaard Intrusion (1)
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Svalbard
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Arran (5)
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Asia
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Buryat Russian Federation (1)
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Far East
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China
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Indian Peninsula
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India (1)
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Middle East
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Cyprus
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Troodos Massif (1)
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Yakutia Russian Federation (1)
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Atlantic Ocean
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North Atlantic
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Faeroe-Shetland Basin (3)
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Gulf of Mexico
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Orca Basin (1)
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Jeanne d'Arc Basin (1)
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North Sea
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Forties Field (1)
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Northeast Atlantic (3)
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Rockall Trough (2)
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Atlantic Ocean Islands
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Atlantic region (1)
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Australasia
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Caledonides (9)
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Canada
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Eastern Canada
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Newfoundland and Labrador
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Commonwealth of Independent States
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Russian Federation
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East Pacific Ocean Islands
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Hawaii
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Europe
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Central Europe
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Switzerland
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Southern Europe
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Italy
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Western Europe
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France
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Iceland
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Ireland
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United Kingdom
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Great Britain
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England
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Scotland
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Argyllshire Scotland
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Islay (1)
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Mull Island (9)
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Ayrshire Scotland (2)
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Edinburgh Scotland (1)
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Great Glen Fault (9)
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Hebrides
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Inner Hebrides
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Islay (1)
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Isle of Skye (128)
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Mull Island (9)
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Raasay (11)
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Rhum (53)
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Outer Hebrides (3)
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Highland region Scotland
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Ardnamurchan (20)
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Caithness Scotland (29)
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Gairloch Scotland (7)
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Inverness-shire Scotland
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Inverness Scotland (7)
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Isle of Skye (128)
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Raasay (11)
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Rhum (53)
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Ross-shire Scotland (11)
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Sutherland Scotland
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Assynt (18)
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Scourie Scotland (13)
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Moine thrust zone (32)
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Moray Firth (10)
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Scottish Highlands
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Northern Ireland (2)
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Fair Isle (1)
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Harris (1)
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Jack Hills (1)
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Midland Valley (3)
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North America
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Basin and Range Province
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Canadian Shield
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Northern Highlands (2)
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Oceania
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Polynesia
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Hawaii
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Mauna Loa (1)
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Orcadian Basin (13)
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Raton Basin (3)
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Saint Kilda (1)
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South America
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Brazil
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Southern Uplands (1)
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United States
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California
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Mono County California
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Hawaii
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elements, isotopes
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carbon
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C-14 (4)
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organic carbon (3)
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chemical ratios (2)
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halogens
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chlorine (1)
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fluorine (1)
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hydrogen
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deuterium (1)
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isotope ratios (26)
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isotopes
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radioactive isotopes
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Be-10 (1)
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C-14 (4)
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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Rb-87/Sr-86 (1)
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stable isotopes
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C-13/C-12 (11)
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deuterium (1)
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He-4/He-3 (1)
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Nd-144/Nd-143 (5)
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O-18/O-16 (20)
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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Rb-87/Sr-86 (1)
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S-34/S-32 (3)
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Sr-87/Sr-86 (14)
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metals
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actinides
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thorium (2)
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uranium (2)
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alkali metals
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lithium (1)
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potassium (2)
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rubidium
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Rb-87/Sr-86 (1)
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sodium (1)
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alkaline earth metals
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barium (2)
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beryllium
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Be-10 (1)
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calcium
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Mg/Ca (1)
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Sr/Ca (1)
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magnesium
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Mg/Ca (1)
-
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strontium
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Rb-87/Sr-86 (1)
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Sr/Ca (1)
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Sr-87/Sr-86 (14)
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bismuth (1)
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cadmium (1)
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chromium (2)
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copper (1)
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iron (1)
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lead
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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manganese (1)
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platinum group
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iridium (1)
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platinum ores (3)
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rare earths
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lanthanum (1)
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neodymium
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Nd-144/Nd-143 (5)
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scandium (1)
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zinc (1)
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noble gases
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argon (1)
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helium
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He-4/He-3 (1)
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oxygen
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O-18/O-16 (20)
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phosphorus
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organic phosphorus (1)
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sulfur
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S-34/S-32 (3)
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fossils
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burrows (1)
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Chordata
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Vertebrata
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Pisces
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Acanthodii (2)
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Osteichthyes
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Sarcopterygii
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Dipnoi (2)
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Placodermi
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Arthrodira (2)
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Tetrapoda
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Mammalia
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Docodonta (1)
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Reptilia
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Diapsida
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Archosauria
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Crocodilia (1)
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dinosaurs
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Ornithischia
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Saurischia
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Sauropodomorpha
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Sauropoda (4)
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Theropoda
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Coelurosauria
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Dromaeosauridae (1)
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Tyrannosauridae (1)
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Pterosauria (1)
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Ichthyosauria
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Ichthyosaurus (1)
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Synapsida (1)
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-
-
-
-
eukaryotes (1)
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ichnofossils
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Eubrontes (1)
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Invertebrata
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Arthropoda
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Chelicerata (1)
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Mandibulata
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Crustacea
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Malacostraca (1)
-
Ostracoda
-
Podocopida
-
Cytherocopina
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Cytheracea
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Cyprideis (1)
-
-
-
-
-
-
-
-
Echinodermata
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Crinozoa
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Crinoidea (1)
-
-
Homalozoa
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Machaeridia (1)
-
-
-
Mollusca
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Bivalvia (2)
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Cephalopoda
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Ammonoidea
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Ammonites (1)
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-
Coleoidea
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Belemnoidea
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Belemnitidae (1)
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-
-
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Protista
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Foraminifera (2)
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Thecamoeba (1)
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microfossils (10)
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palynomorphs
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Dinoflagellata (1)
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miospores
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pollen (3)
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Plantae
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algae
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diatoms (1)
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Spermatophyta
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Angiospermae
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Dicotyledoneae (1)
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Gymnospermae
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Coniferae (1)
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prokaryotes (1)
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tracks (7)
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geochronology methods
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fission-track dating (4)
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K/Ar (5)
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paleomagnetism (13)
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radiation damage (1)
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Cenozoic
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upper Pleistocene
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upper Weichselian
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Tertiary
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Neogene
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Topopah Spring Member (1)
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Paleozoic
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Phanerozoic (1)
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Precambrian
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Lewisian Complex (20)
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upper Precambrian
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Proterozoic
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aikinite (1)
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greenockite (1)
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pyrite (1)
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sphalerite (1)
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sulfosalts
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-
-
tellurides
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tetradymite (1)
-
-
-
Primary terms
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absolute age (33)
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Africa
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Southern Africa
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Karoo Basin (1)
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Namibia
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Tsumeb Namibia (1)
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South Africa
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Bushveld Complex (3)
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Merensky Reef (2)
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North-West Province South Africa (1)
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Transvaal region (2)
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West Africa
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Nigeria (1)
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Antarctica
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Arctic Ocean
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Arctic region
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Greenland
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Asia
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Buryat Russian Federation (1)
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Far East
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Indian Peninsula
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Middle East
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Yakutia Russian Federation (1)
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Atlantic Ocean
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North Atlantic
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Faeroe-Shetland Basin (3)
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Jeanne d'Arc Basin (1)
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North Sea
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Forties Field (1)
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Northeast Atlantic (3)
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Rockall Trough (2)
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Atlantic region (1)
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Australasia
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biogeography (2)
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biography (2)
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boron (2)
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boron deposits (1)
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Canada
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Newfoundland and Labrador
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-
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carbon
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C-13/C-12 (11)
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C-14 (4)
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organic carbon (3)
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Cenozoic
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Quaternary
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Holocene
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Neoglacial (1)
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upper Holocene (1)
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Pleistocene
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upper Pleistocene
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Devensian
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upper Devensian (2)
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Weichselian
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Loch Lomond Stade (1)
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upper Weichselian
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Younger Dryas (3)
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-
-
-
-
-
Tertiary
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Neogene
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Miocene
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Topopah Spring Member (1)
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Pliocene
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Cimmerian (1)
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-
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Paleogene
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Eocene
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lower Eocene (2)
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Oligocene (2)
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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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-
-
-
chemical analysis (1)
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Chordata
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Vertebrata
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Pisces
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Acanthodii (2)
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Osteichthyes
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Sarcopterygii
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Dipnoi (2)
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Placodermi
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Arthrodira (2)
-
-
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Tetrapoda
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Mammalia
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Docodonta (1)
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Reptilia
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Diapsida
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Archosauria
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Crocodilia (1)
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dinosaurs
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Ornithischia
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Saurischia
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Sauropodomorpha
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Sauropoda (4)
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Theropoda
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Coelurosauria
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Dromaeosauridae (1)
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Tyrannosauridae (1)
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-
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-
Pterosauria (1)
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Ichthyosauria
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Ichthyosaurus (1)
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Synapsida (1)
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clay mineralogy (7)
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Europe
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Western Europe
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Scotland
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Isle of Skye (128)
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Raasay (11)
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Rhum (53)
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Outer Hebrides (3)
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Highland region Scotland
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Ardnamurchan (20)
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Caithness Scotland (29)
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Gairloch Scotland (7)
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Inverness-shire Scotland
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Inverness Scotland (7)
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Isle of Skye (128)
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Raasay (11)
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Rhum (53)
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Ross-shire Scotland (11)
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Sutherland Scotland
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Assynt (18)
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Scourie Scotland (13)
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-
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Moine thrust zone (32)
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Moray Firth (10)
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Orkney Islands (9)
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Scottish Highlands
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Grampian Highlands (3)
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Scottish Northern Highlands (3)
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Shetland Islands (4)
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Northern Ireland (2)
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faults (57)
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ichnofossils
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Eubrontes (1)
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igneous rocks
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gabbros
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granites
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A-type granites (1)
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granodiorites (2)
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pegmatite (3)
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alkali syenites (1)
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microsyenite (1)
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ultramafics
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chromitite (2)
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peridotites (12)
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pyroxenite (2)
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porphyry
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vitrophyre (1)
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volcanic rocks
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flood basalts (2)
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mid-ocean ridge basalts (1)
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shoshonite (1)
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tholeiite (2)
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trap rocks (1)
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pyroclastics
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ignimbrite (4)
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tuff (4)
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welded tuff (1)
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rhyodacites (6)
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rhyolites (4)
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vitrophyre (1)
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-
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inclusions
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fluid inclusions (3)
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intrusions (117)
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Invertebrata
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Arthropoda
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Chelicerata (1)
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Mandibulata
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Crustacea
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Malacostraca (1)
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Ostracoda
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Podocopida
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Cytherocopina
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Cytheracea
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Cyprideis (1)
-
-
-
-
-
-
-
-
Echinodermata
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Crinozoa
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Crinoidea (1)
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-
Homalozoa
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Machaeridia (1)
-
-
-
Mollusca
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Bivalvia (2)
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Cephalopoda
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Ammonoidea
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Ammonites (1)
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-
Coleoidea
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Belemnoidea
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Belemnitidae (1)
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-
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Protista
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Foraminifera (2)
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Thecamoeba (1)
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isotopes
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radioactive isotopes
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Be-10 (1)
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C-14 (4)
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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Rb-87/Sr-86 (1)
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stable isotopes
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C-13/C-12 (11)
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deuterium (1)
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He-4/He-3 (1)
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Nd-144/Nd-143 (5)
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O-18/O-16 (20)
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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Rb-87/Sr-86 (1)
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S-34/S-32 (3)
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Sr-87/Sr-86 (14)
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-
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lava (11)
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lineation (6)
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magmas (43)
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mantle (4)
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maps (1)
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Mesozoic
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Cretaceous
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Lower Cretaceous (1)
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Upper Cretaceous (1)
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Jurassic
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Lower Jurassic
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Sinemurian (1)
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Middle Jurassic
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Aalenian (1)
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Bajocian (3)
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Bathonian (12)
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Callovian (2)
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Oxford Clay (1)
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Upper Jurassic
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Kimmeridge Clay (1)
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Kimmeridgian
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lower Kimmeridgian (1)
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Oxfordian (3)
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Sundance Formation (1)
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-
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Triassic (1)
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metal ores
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base metals (1)
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metals
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alkali metals
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lithium (1)
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rubidium
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Rb-87/Sr-86 (1)
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sodium (1)
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alkaline earth metals
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barium (2)
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beryllium
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Be-10 (1)
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calcium
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Mg/Ca (1)
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Sr/Ca (1)
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magnesium
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Mg/Ca (1)
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strontium
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Rb-87/Sr-86 (1)
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Sr/Ca (1)
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Sr-87/Sr-86 (14)
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-
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bismuth (1)
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cadmium (1)
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chromium (2)
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copper (1)
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iron (1)
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lead
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Pb-206/Pb-204 (2)
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Pb-207/Pb-204 (2)
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Pb-208/Pb-204 (2)
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manganese (1)
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niobium (1)
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platinum group
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iridium (1)
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platinum ores (3)
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rare earths
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lanthanum (1)
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neodymium
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Nd-144/Nd-143 (5)
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-
scandium (1)
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-
zinc (1)
-
-
metamorphic rocks
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amphibolites (3)
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cataclasites (1)
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gneisses
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augen gneiss (1)
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granite gneiss (1)
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orthogneiss (1)
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granulites (4)
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impactites
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impact breccia
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suevite (1)
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-
-
marbles (2)
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metaigneous rocks
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metagabbro (1)
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metagranite (1)
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metapyroxenite (1)
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serpentinite (1)
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metasedimentary rocks
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meta-arkose (1)
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metapelite (1)
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metasandstone (1)
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metasomatic rocks
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fenite (1)
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serpentinite (1)
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skarn (6)
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migmatites (3)
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mylonites
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pseudotachylite (3)
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quartzites (5)
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slates (1)
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metamorphism (37)
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mineral deposits, genesis (3)
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minerals (7)
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noble gases
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argon (1)
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helium
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He-4/He-3 (1)
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nodules (1)
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North America
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Basin and Range Province
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Great Basin (1)
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Canadian Shield
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Grenville Province (1)
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Superior Province (1)
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-
-
Ocean Drilling Program
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Leg 104 (1)
-
-
ocean floors (2)
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Oceania
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Polynesia
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Hawaii
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Mauna Loa (1)
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-
-
-
oil and gas fields (3)
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orogeny (7)
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oxygen
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O-18/O-16 (20)
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paleobotany (2)
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paleoclimatology (10)
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paleoecology (7)
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paleogeography (11)
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paleomagnetism (13)
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paleontology (2)
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Paleozoic
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Cambrian
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Lower Cambrian (1)
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Upper Cambrian (1)
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Carboniferous
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Upper Carboniferous (1)
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Devonian
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Middle Devonian
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Eifelian (3)
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Givetian (4)
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-
Old Red Sandstone (11)
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Upper Devonian (1)
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Upper Old Red Sandstone (1)
-
-
lower Paleozoic (2)
-
Ordovician
-
Lower Ordovician
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Arenigian (1)
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Tremadocian (1)
-
-
-
Permian
-
Lower Permian (1)
-
-
Sauk Sequence (1)
-
Silurian
-
Lower Silurian (2)
-
-
-
palynomorphs
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acritarchs (2)
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Dinoflagellata (1)
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miospores
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pollen (3)
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-
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paragenesis (2)
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petroleum
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natural gas (3)
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petrology (82)
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Phanerozoic (1)
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phase equilibria (6)
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phosphorus
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organic phosphorus (1)
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Plantae
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algae
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diatoms (1)
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Spermatophyta
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Angiospermae
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Dicotyledoneae (1)
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Gymnospermae
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Coniferae (1)
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-
-
-
plate tectonics (9)
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pollution (2)
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Precambrian
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Archean (7)
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Lewisian Complex (20)
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upper Precambrian
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Proterozoic
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Lewisian (24)
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Mesoproterozoic
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Laxfordian (8)
-
-
Neoproterozoic
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Infracambrian (1)
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Moine Supergroup (9)
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Moinian (10)
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Torridonian (25)
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Vendian (1)
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Paleoproterozoic (7)
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rock mechanics (1)
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sea water (1)
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sea-floor spreading (1)
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sea-level changes (8)
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sedimentary petrology (4)
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sedimentary rocks
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chemically precipitated rocks
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chert (3)
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phosphate rocks (1)
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clastic rocks
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arkose (2)
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black shale (1)
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claystone (1)
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conglomerate (3)
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marl (1)
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mudstone (4)
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orthoquartzite (1)
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red beds (1)
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sandstone (24)
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shale (5)
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-
-
sedimentary structures
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bedding plane irregularities
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ripple marks (1)
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biogenic structures
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planar bedding structures
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secondary structures
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soft sediment deformation
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turbidity current structures (1)
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sedimentation (16)
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Podzols (1)
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South America
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Brazil
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stratigraphy (12)
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structural geology (20)
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sulfur
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S-34/S-32 (3)
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tectonics
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United States
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California
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volcanology (3)
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rock formations
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sedimentary rocks
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clastic rocks
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arkose (2)
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siliciclastics (1)
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planar bedding structures
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cross-bedding (2)
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laminations (2)
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secondary structures
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concretions (2)
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soft sediment deformation
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clastic dikes (1)
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turbidity current structures (1)
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stratification (1)
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striations (1)
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tracks (7)
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sediments
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sediments
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dust (1)
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gravel (2)
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GeoRef Categories
Era and Period
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Highland region Scotland
A lectotype for the Scottish Middle Devonian (Givetian) fish Osteolepis panderi and the historical problems of the genus Osteolepis Available to Purchase
Archean–Paleoproterozoic: formation of the crystalline basement Available to Purchase
Old Red Sandstone: continental sedimentation on the eroding Caledonian Orogen Available to Purchase
Permian and Triassic: changing climates in the centre of Pangaea Available to Purchase
Paleogene and Neogene sedimentation: development of deep ocean circulation around the Atlantic and Arctic margins Available to Purchase
Paleogene igneous activity: North Atlantic plume-related magmatism Available to Purchase
Quaternary: glaciations, sea-level change and palaeoenvironmental reconstruction Available to Purchase
Mapping intragranular microstructures in quartz: the significance of Dauphiné twinning Open Access
Abstract Mapping on the microstructural scale can contribute significantly to conventional field and larger scale mapping and understanding of spatial, temporal and process-oriented relationships. Here, electron backscattered diffraction (EBSD)-based microstructural maps are presented of subgrain and Dauphiné twin boundaries in undeformed sedimentary quartzite. ‘Plane matching’ analysis permits determination of the complete orientation of boundaries. A workflow is presented to facilitate the necessary crystallographic calculations. The resulting maps indicate: (1) boundary plane rotation angle/axis pairs, including tilt–twist components; (2) boundary migration vectors; and (3) conventional EBSD misorientation angle/axis pairs. Subgrain boundaries are general with small misorientations and boundary plane normal directions sub-parallel to grain boundary stress concentrations; rotation axes are oriented sub-parallel to the bedding dip (017°/10°E). Most exhibit bi-direction boundary migration vectors parallel to bedding normal. The EBSD misorientation analysis results are different as they only recognize the parallelism of adjacent crystal lattices. The differences are especially apparent for Dauphiné twin boundaries. Maps are presented of twin boundaries using matched plane analysis, including explanation for lateral twin migration. Driving forces to move twin boundaries are also estimated by mapping variations in Young's modulus between parents and twins; differences are significant, indicating that the Young's modulus and driving forces do not need to be large, explaining the propensity for twinning in many quartzites.