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all geography including DSDP/ODP Sites and Legs
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carbon
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C-13/C-12 (1)
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chemical ratios (1)
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Pb-206/Pb-204 (3)
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Pb-207/Pb-204 (4)
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Pb-208/Pb-204 (4)
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stable isotopes
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C-13/C-12 (1)
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D/H (2)
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deuterium (1)
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Hf-177/Hf-176 (2)
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N-15/N-14 (2)
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Nd-144/Nd-143 (3)
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O-18/O-16 (2)
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Pb-206/Pb-204 (3)
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Pb-207/Pb-204 (4)
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Pb-208/Pb-204 (4)
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Sr-87/Sr-86 (4)
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metals
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cobalt (1)
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Hf-177/Hf-176 (2)
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Pb-206/Pb-204 (3)
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Pb-207/Pb-204 (4)
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Pb-208/Pb-204 (4)
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nitrogen
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oxygen
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O-18/O-16 (2)
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sulfur
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S-34/S-32 (4)
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fossils
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Chordata
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Vertebrata
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Tetrapoda
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Mammalia
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Theria
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Pinnipedia (1)
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Notoungulata (2)
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Invertebrata
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Plantae
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Spermatophyta
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Gymnospermae
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Coniferales (1)
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tracks (1)
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geochronology methods
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Ar/Ar (8)
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fission-track dating (3)
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infrared stimulated luminescence (1)
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optically stimulated luminescence (1)
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geologic age
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Cenozoic
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Quaternary
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Tertiary
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Paleogene
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middle Eocene (1)
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Oligocene
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Sarmiento Formation (1)
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upper Cenozoic (3)
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Mesozoic
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Cretaceous
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Upper Cretaceous (4)
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Paleozoic
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pyroclastics
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rhyolites (2)
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metamorphic rocks
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orthosilicates
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zircon group
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zircon (14)
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sorosilicates
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ring silicates
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sheet silicates
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chlorite group
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Primary terms
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absolute age (25)
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Asia
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Far East
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China
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Guangdong China
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Guangzhou China (1)
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Zhujiang River (1)
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Himalayas
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Indian Peninsula
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India
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Kutch India (1)
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Jammu and Kashmir
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Nanga Parbat (1)
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Karakoram (1)
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biogeography (1)
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boron
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B-11/B-10 (1)
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brines (1)
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carbon
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C-13/C-12 (1)
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C-14 (1)
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Caribbean region
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West Indies
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Antilles
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Greater Antilles
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Hispaniola
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Haiti (1)
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Lesser Antilles (1)
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Cenozoic
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Quaternary
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Holocene
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upper Holocene (1)
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Pleistocene (1)
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Tertiary
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middle Tertiary
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Deseadan (2)
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Neogene
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Miocene
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lower Miocene (5)
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middle Miocene (1)
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upper Miocene (7)
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Vallesian (1)
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Pliocene
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lower Pliocene (1)
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Paleogene
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Eocene
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middle Eocene (1)
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upper Eocene (1)
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Oligocene
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upper Oligocene (3)
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-
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Sarmiento Formation (1)
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upper Cenozoic (3)
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-
ceramic materials (1)
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Chordata
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Vertebrata
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Tetrapoda
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Mammalia
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Theria
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Eutheria
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Carnivora
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Pinnipedia (1)
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Notoungulata (2)
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-
-
-
-
-
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clay mineralogy (1)
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climate change (1)
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crystallography (1)
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data processing (3)
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deformation (8)
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earthquakes (4)
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Europe
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Czech Republic
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Bohemia
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Germany
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Saar-Nahe Basin (1)
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Poland (1)
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Upper Silesian coal basin (1)
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Donets Basin (1)
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Pyrenees
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Spanish Pyrenees (2)
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Southern Europe
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Iberian Peninsula
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Duero Basin (2)
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Spain
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Betic Cordillera (1)
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Western Europe
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hydrogen
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D/H (2)
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deuterium (1)
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hydrogeology (1)
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ichnofossils (1)
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igneous rocks
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hypabyssal rocks (1)
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plutonic rocks
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diorites
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tonalite (1)
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-
granites
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monzogranite (1)
-
-
granodiorites (1)
-
monzodiorite (1)
-
monzonites (1)
-
quartz monzonite (1)
-
-
porphyry (1)
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volcanic rocks
-
andesites (4)
-
basalts
-
mid-ocean ridge basalts (1)
-
-
pyroclastics
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tuff (1)
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rhyolites (2)
-
-
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inclusions
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fluid inclusions (3)
-
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Indian Ocean
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Arabian Sea
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Indus Fan (1)
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intrusions (13)
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Invertebrata
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Cnidaria (1)
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Mollusca
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Cephalopoda
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Ammonoidea (1)
-
-
-
-
isotopes
-
radioactive isotopes
-
C-14 (1)
-
Pb-206/Pb-204 (3)
-
Pb-207/Pb-204 (4)
-
Pb-208/Pb-204 (4)
-
-
stable isotopes
-
B-11/B-10 (1)
-
C-13/C-12 (1)
-
D/H (2)
-
deuterium (1)
-
Hf-177/Hf-176 (2)
-
N-15/N-14 (2)
-
Nd-144/Nd-143 (3)
-
O-18/O-16 (2)
-
Pb-206/Pb-204 (3)
-
Pb-207/Pb-204 (4)
-
Pb-208/Pb-204 (4)
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S-34/S-32 (4)
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Sr-87/Sr-86 (4)
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land use (1)
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lava (1)
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magmas (12)
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Malay Archipelago
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New Guinea (1)
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mantle (1)
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Mediterranean Sea (1)
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Mesozoic
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Cretaceous
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Lower Cretaceous
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Berriasian (1)
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Upper Cretaceous (4)
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Jurassic
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Upper Jurassic
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Tithonian (1)
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Triassic
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Upper Triassic (1)
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metal ores
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copper ores (17)
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gold ores (7)
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molybdenum ores (9)
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metals
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actinides
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uranium (1)
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alkaline earth metals
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strontium
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Sr-87/Sr-86 (4)
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cobalt (1)
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hafnium
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Hf-177/Hf-176 (2)
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lead
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Pb-206/Pb-204 (3)
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Pb-207/Pb-204 (4)
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Pb-208/Pb-204 (4)
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nickel (1)
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rare earths
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neodymium
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Nd-144/Nd-143 (3)
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yttrium (1)
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silver (1)
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tin (1)
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zinc (1)
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metamorphic rocks
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metaigneous rocks
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metabasite (2)
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metasedimentary rocks (1)
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metamorphism (3)
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metasomatism (6)
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Mexico
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Baja California (1)
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Popocatepetl (1)
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Trans-Mexican volcanic belt (1)
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mineral deposits, genesis (17)
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mineral exploration (6)
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Mohorovicic discontinuity (1)
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nitrogen
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N-15/N-14 (2)
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North America
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North American Cordillera (1)
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Rocky Mountains
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U. S. Rocky Mountains
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Wasatch Range (1)
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oceanography (1)
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orogeny (5)
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oxygen
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O-18/O-16 (2)
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Pacific Ocean
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East Pacific
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Carnegie Ridge (1)
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Southeast Pacific
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Nazca Ridge (1)
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North Pacific
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Northwest Pacific
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South China Sea
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Zhujiangkou Basin (1)
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South Pacific
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Southeast Pacific
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Nazca Ridge (1)
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West Pacific
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Northwest Pacific
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South China Sea
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Zhujiangkou Basin (1)
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paleoecology (2)
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paleogeography (6)
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paleomagnetism (1)
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Paleozoic
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1-20 OF 136 RESULTS FOR
Abanico Formation
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Image
Common lithologies observed within the Abanico Formation. (A) 40+ mafic-to-... Available to Purchase
in Late Cretaceous to Miocene volcanism, sedimentation, and upper-crustal faulting and folding in the Principal Cordillera, central Chile: Field and geochronological evidence for protracted arc volcanism and transpressive deformation
> GSA Bulletin
Published: 12 July 2018
Figure 6. Common lithologies observed within the Abanico Formation. (A) 40+ mafic-to-intermediate lava flows with subordinate tuff and volcaniclastic intervals (Guanaco member). Individual lava flows observed in the photograph are 2–20 m thick. (B) Andesitic block-and-ash flow deposit. Hammer
Image
Schematic stratigraphic sections of the Abanico Formation west and east of ... Available to Purchase
in Late Cretaceous to Miocene volcanism, sedimentation, and upper-crustal faulting and folding in the Principal Cordillera, central Chile: Field and geochronological evidence for protracted arc volcanism and transpressive deformation
> GSA Bulletin
Published: 12 July 2018
Figure 7. Schematic stratigraphic sections of the Abanico Formation west and east of the El Baule fault zone. Sections were derived from map relationships and do not represent detailed measured sections. 40 Ar/ 39 Ar ages are recalculated relative to the Fish Canyon Tuff (FCT) sanidine. Map unit
Journal Article
Late Cretaceous to Miocene volcanism, sedimentation, and upper-crustal faulting and folding in the Principal Cordillera, central Chile: Field and geochronological evidence for protracted arc volcanism and transpressive deformation Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 12 July 2018
GSA Bulletin (2019) 131 (1-2): 252–273.
...Figure 6. Common lithologies observed within the Abanico Formation. (A) 40+ mafic-to-intermediate lava flows with subordinate tuff and volcaniclastic intervals (Guanaco member). Individual lava flows observed in the photograph are 2–20 m thick. (B) Andesitic block-and-ash flow deposit. Hammer...
Journal Article
Tertiary volcanism during extension in the Andean foothills of central Chile (33°15′–33°45′S) Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 01 December 2003
GSA Bulletin (2003) 115 (12): 1523–1537.
...Jan Olov Nyström; Mario Vergara; Diego Morata; Beatriz Levi Abstract This lithologic and geochemical study treats two Tertiary volcanic formations in the Andean foothills of central Chile deposited during and after an inferred culmination of crustal attenuation. The Abanico and Farellones...
Journal Article
Regional Geochemistry of Tertiary Igneous Rocks in Central Chile: Implications for the Geodynamic Environment of Giant Porphyry Copper and Epithermal Gold Mineralization Available to Purchase
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 August 2005
Economic Geology (2005) 100 (5): 887–904.
.../Sm n ratios of 1.8 to 2.5 and Sm/Yb n of 1.8 to 2.8. The upper Oligocene to lower Miocene Abanico Formation (variously defined as the Los Pelambres, Abanico, or Coya Machalí Formations) ranges from basalt to rhyolite in composition and exhibits a broad southward transition from calc-alkaline...
Image
Overview of the map units. (A) View southwest across the Río Tinguiririca v... Available to Purchase
in Late Cretaceous to Miocene volcanism, sedimentation, and upper-crustal faulting and folding in the Principal Cordillera, central Chile: Field and geochronological evidence for protracted arc volcanism and transpressive deformation
> GSA Bulletin
Published: 12 July 2018
Figure 5. Overview of the map units. (A) View southwest across the Río Tinguiririca valley showing the Abanico Formation’s lower stratigraphic members Kll, Kga, Kgz, KTc, Ttl, and Ttu, and upper stratigraphic member Tg. Río Tinguiririca and reservoir labeled for scale. (B) Upper stratigraphic
Image
Deformation style at the inverted eastern margin of the Abanico Basin. A. E... Available to Purchase
in Structural Evolution of the Rio Blanco-Los Bronces District, Andes of Central Chile: Controls on Stratigraphy, Magmatism, and Mineralization
> Economic Geology
Published: 01 December 2015
Fig. 7 Deformation style at the inverted eastern margin of the Abanico Basin. A. E-vergent anticline-syncline pair affecting Abanico Formation lava flows. View north from 399397mE, 6349379mN. B. Immediately to the east of (A), the Tertiary volcanic rocks are in fault contact with Mesozoic
Image
(A) Plot of all geochronology data obtained in this study, sorted by age. ... Available to Purchase
in Late Cretaceous to Miocene volcanism, sedimentation, and upper-crustal faulting and folding in the Principal Cordillera, central Chile: Field and geochronological evidence for protracted arc volcanism and transpressive deformation
> GSA Bulletin
Published: 12 July 2018
Figure 8. (A) Plot of all geochronology data obtained in this study, sorted by age. 40 Ar/ 39 Ar ages are shown in black, and U-Pb zircon ages are in gray. The dashed line represents the oldest reliable age reported for the Abanico Formation prior to this study (ca. 36.2 Ma). Ages above
Image
Three schematic end-member models depicting the evolution of an intra-arc b... Available to Purchase
in Late Cretaceous to Miocene volcanism, sedimentation, and upper-crustal faulting and folding in the Principal Cordillera, central Chile: Field and geochronological evidence for protracted arc volcanism and transpressive deformation
> GSA Bulletin
Published: 12 July 2018
strata west of an active, west-dipping extensional fault system (proto–El Baule fault zone), or a relict fault-bounded range front (buttress unconformity). (B) Deposition of the lower Abanico Formation, followed by normal faulting, erosion of footwall strata, and accumulation of volcanic
Image
Figure 13. Fertile MORB mantle (FMM) normalized diagrams for mantle-derived... Available to Purchase
in Tertiary volcanism during extension in the Andean foothills of central Chile (33°15′–33°45′S)
> GSA Bulletin
Published: 01 December 2003
Figure 13. Fertile MORB mantle (FMM) normalized diagrams for mantle-derived elements in basic lavas from the Abanico Formation and the upper member of the Farellones Formation. Normalization factors from Pearce and Parkinson (1993) . SiO 2 contents (wt%) of the samples in parentheses.
Image
Figure 2. Geologic sketch map of the study area that includes the type loca... Available to Purchase
in Tertiary volcanism during extension in the Andean foothills of central Chile (33°15′–33°45′S)
> GSA Bulletin
Published: 01 December 2003
Figure 2. Geologic sketch map of the study area that includes the type localities of the Abanico (Oligocene; dark pattern) and Farellones (lower Miocene; light pattern) Formations east of Santiago, central Chile (white—alluvium, crosses—Tertiary granitoids). Modified from Thiele (1980) , Beccar
Image
General stratigraphic framework of the central Principal Cordillera between... Available to Purchase
in Late Cretaceous to Miocene volcanism, sedimentation, and upper-crustal faulting and folding in the Principal Cordillera, central Chile: Field and geochronological evidence for protracted arc volcanism and transpressive deformation
> GSA Bulletin
Published: 12 July 2018
Figure 3. General stratigraphic framework of the central Principal Cordillera between ∼33°S and 36°S latitude, after Charrier et al. (1996) . Results reported herein significantly revise the age of volcanic deposits previously mapped as the Abanico Formation in the Río Tinguiririca area. Fm
Image
Figure 3. Generalized lithostratigraphic column for the Abanico and Farello... Available to Purchase
in Tertiary volcanism during extension in the Andean foothills of central Chile (33°15′–33°45′S)
> GSA Bulletin
Published: 01 December 2003
Figure 3. Generalized lithostratigraphic column for the Abanico and Farellones Formations in their type localities east of Santiago, central Chile (location of type localities shown in Fig. 2 ; subordinate rock types within parentheses), with approximate positions of the analyzed samples
Image
View of the NE-striking Saladillo fault system. About 800 m of Abanico Form... Available to Purchase
in Structural Evolution of the Rio Blanco-Los Bronces District, Andes of Central Chile: Controls on Stratigraphy, Magmatism, and Mineralization
> Economic Geology
Published: 01 December 2015
Fig. 10 View of the NE-striking Saladillo fault system. About 800 m of Abanico Formation pyroclastic rocks were accumulated in a tectonic basin to the northwest of the fault system. The same structures were later reactivated as dextral-reverse faults and controlled the emplacement of andesitic
Image
Examples of syntectonic intrusions emplaced during E-W compression. In both... Available to Purchase
in Structural Evolution of the Rio Blanco-Los Bronces District, Andes of Central Chile: Controls on Stratigraphy, Magmatism, and Mineralization
> Economic Geology
Published: 01 December 2015
Fig. 12 Examples of syntectonic intrusions emplaced during E-W compression. In both cases the host rocks are basaltic-andesitic lava flows of the Abanico Formation. A. Gabbro-diorite dike emplaced in a dilational jog within a sinistral, NW- striking fault, at 383791mE, 6349678mN. The outcrop
Image
Generalized geologic map spanning Chile and western Argentina between 34°S ... Available to Purchase
in Late Cretaceous to Miocene volcanism, sedimentation, and upper-crustal faulting and folding in the Principal Cordillera, central Chile: Field and geochronological evidence for protracted arc volcanism and transpressive deformation
> GSA Bulletin
Published: 12 July 2018
-and-thrust belt (FTB). Geologic map is modified after the Mapa Geológico de Chile ( SERNAGEOMIN, 2003 ) and the Mapa Geológico de la República Argentina ( SEGEMAR, 1997 ), with the age of the Abanico Formation deriving from results presented herein. Fm.—Formation.
Image
Figure 1. Location of the study area in central Chile. (A) Main physiograph... Available to Purchase
in Tertiary volcanism during extension in the Andean foothills of central Chile (33°15′–33°45′S)
> GSA Bulletin
Published: 01 December 2003
Miocene rocks in the Central Valley graben, Tab—the Oligocene Abanico Formation, Tfa—the lower Miocene Farellones Formation, Tabe—Oligocene rocks usually referred to as the Abanico East Formation (not treated in this paper), and Q—Quaternary volcanic complexes. Regional unconformities and major faults
Image
Simplified geologic map of central Chile, showing approximate locations of ... Available to Purchase
in Regional Geochemistry of Tertiary Igneous Rocks in Central Chile: Implications for the Geodynamic Environment of Giant Porphyry Copper and Epithermal Gold Mineralization
> Economic Geology
Published: 01 August 2005
of central Chile, referred to as the Abanico Formation herein (see text for discussion). Age data in right-hand column from Vergara et al. (1988) . Map modified after Rivano et al. (1993) , Rivano and Sepulveda (1986) , and Thiele (1979) .
Image
Same-scale regional plan view maps of (A) the New Guinea fold belt in Irian... Available to Purchase
in The Role of Preexisting Geologic Architecture in the Formation of Giant Porphyry-Related Cu ± Au Deposits: Examples from New Guinea and Chile
> Economic Geology
Published: 01 August 2005
Limestone and Farellones Formation in the center of the New Guinea and central Chilean fold and thrust belts, respectively. The units immediately underlying the competent plates comprise Mesozoic clastic packages in New Guinea and the Coya-Machalí and Abanico Formation volcaniclastic packages in central
Journal Article
Structural Evolution of the Rio Blanco-Los Bronces District, Andes of Central Chile: Controls on Stratigraphy, Magmatism, and Mineralization Available to Purchase
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 December 2015
Economic Geology (2015) 110 (8): 1995–2023.
...Fig. 7 Deformation style at the inverted eastern margin of the Abanico Basin. A. E-vergent anticline-syncline pair affecting Abanico Formation lava flows. View north from 399397mE, 6349379mN. B. Immediately to the east of (A), the Tertiary volcanic rocks are in fault contact with Mesozoic...
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