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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Limpopo Belt (1)
-
Southern Africa (1)
-
-
Alpine Fault (3)
-
Asia
-
Central Asia
-
Kazakhstan
-
Almaty Kazakhstan (1)
-
-
Pamirs (2)
-
-
Far East
-
China
-
Altun Mountains (1)
-
Altyn Tagh Fault (2)
-
Qaidam Basin (1)
-
Qilian Mountains (1)
-
Qinghai China (1)
-
Tangshan China (1)
-
Tarim Platform (1)
-
Xizang China
-
Lhasa Block (3)
-
-
-
Japan
-
Honshu
-
Kii Peninsula (1)
-
Tohoku (1)
-
-
Kyushu (1)
-
Shikoku (1)
-
Shimanto Belt (1)
-
-
-
Himalayas (9)
-
Indian Peninsula
-
India
-
Rajasthan India
-
Aravalli Range (1)
-
Mangalwar Complex (1)
-
-
-
Kohistan (1)
-
Nepal (1)
-
Pakistan
-
North-West Frontier Pakistan (1)
-
-
-
Indus-Yarlung Zangbo suture zone (2)
-
Karakoram (1)
-
Novosibirsk Russian Federation (1)
-
Qiangtang Terrane (4)
-
Russian Pacific region (1)
-
Sakhalin Russian Federation
-
Kuril Islands
-
Kunashir Island (1)
-
-
Sakhalin (1)
-
-
Tajikistan
-
Garm Tajikistan (1)
-
Tajik Depression (1)
-
-
Tibetan Plateau (7)
-
-
Atlantic Ocean
-
North Atlantic
-
Barbados Ridge (2)
-
Caribbean Sea (1)
-
Puerto Rico Trench (1)
-
-
-
Austral Basin (1)
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Australasia
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Australia
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Queensland Australia (1)
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New Zealand (3)
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Papua New Guinea (1)
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Canada
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Eastern Canada
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Newfoundland and Labrador
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Newfoundland (1)
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Ontario (1)
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Quebec
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Manicouagan Crater (1)
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-
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Ungava (1)
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Western Canada
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Alberta
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Alberta Basin (1)
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British Columbia
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Queen Charlotte Islands (1)
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Canadian Cordillera (1)
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Canadian Rocky Mountains (2)
-
-
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Caribbean region
-
West Indies
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Antilles
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Greater Antilles
-
Hispaniola (1)
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Jamaica (1)
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Puerto Rico (1)
-
-
-
-
-
Cascade Range (1)
-
Cascadia subduction zone (1)
-
Central America
-
Costa Rica
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Nicoya Peninsula (1)
-
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Panama (4)
-
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Central Valley (1)
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Coast Ranges (1)
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Colombian Basin (1)
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Commonwealth of Independent States
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Kazakhstan
-
Almaty Kazakhstan (1)
-
-
Russian Federation
-
Moscow Russian Federation (1)
-
Novosibirsk Russian Federation (1)
-
Russian Pacific region (1)
-
Sakhalin Russian Federation
-
Kuril Islands
-
Kunashir Island (1)
-
-
Sakhalin (1)
-
-
-
Tajikistan
-
Garm Tajikistan (1)
-
Tajik Depression (1)
-
-
-
Eurasia (1)
-
Europe
-
Alps
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Prealps (1)
-
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Carpathian Foredeep (1)
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Carpathians (1)
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Central Europe
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Bohemian Massif (2)
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Germany
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Brandenburg Germany
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Potsdam Germany (1)
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-
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Silesia (1)
-
-
Moscow Russian Federation (1)
-
Pyrenees (1)
-
Southern Europe
-
Greece
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Crete (1)
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Epirus Greece (1)
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Greek Macedonia (1)
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Hellenides (2)
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Pindus Mountains (2)
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Thessaly Greece (2)
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-
Iberian Peninsula
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Iberian Massif (1)
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Spain
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Basque Provinces Spain (1)
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Cantabrian Mountains (1)
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Galicia Spain
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La Coruna Spain (1)
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Lugo Spain (1)
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Ordenes Complex (1)
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-
-
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Italy
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Apennines
-
Apuane Alps (1)
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Northern Apennines (2)
-
-
Emilia-Romagna Italy (1)
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Liguria Italy (1)
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Tuscany Italy
-
Apuane Alps (1)
-
-
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Macedonia
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Greek Macedonia (1)
-
-
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Variscides (1)
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Western Europe
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France
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Aquitaine Basin (1)
-
-
United Kingdom
-
Great Britain
-
Scotland
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Perthshire Scotland (1)
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Scottish Highlands
-
Grampian Highlands (1)
-
-
-
-
-
-
-
Makran (1)
-
Mediterranean region (1)
-
North America
-
Appalachians
-
Northern Appalachians (1)
-
-
Basin and Range Province
-
Great Basin (1)
-
-
Canadian Shield
-
Churchill Province
-
Cape Smith fold belt (1)
-
-
Grenville Province (1)
-
Superior Province
-
Abitibi Belt (1)
-
-
-
Coast plutonic complex (1)
-
Denali Fault (1)
-
North American Cordillera
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Canadian Cordillera (1)
-
-
North American Craton (1)
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Omineca Belt (1)
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Rocky Mountains
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Canadian Rocky Mountains (2)
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Selkirk Mountains (1)
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-
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Olympus (1)
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Pacific Coast (2)
-
Pacific Ocean
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East Pacific
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Carnegie Ridge (1)
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Cocos Ridge (2)
-
Northeast Pacific
-
Cascadia Basin (1)
-
Middle America Trench (2)
-
Queen Charlotte Basin (1)
-
-
Peru-Chile Trench (1)
-
Southeast Pacific
-
Chile Ridge (1)
-
-
-
North Pacific
-
Northeast Pacific
-
Cascadia Basin (1)
-
Middle America Trench (2)
-
Queen Charlotte Basin (1)
-
-
Northwest Pacific
-
Japan Trench (1)
-
Nankai Trough (3)
-
Shikoku Basin (2)
-
-
-
South Pacific
-
Southeast Pacific
-
Chile Ridge (1)
-
-
-
West Pacific
-
Northwest Pacific
-
Japan Trench (1)
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Nankai Trough (3)
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Shikoku Basin (2)
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Pacific region (1)
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Queen Charlotte Fault (1)
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Rand Mountains (1)
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Roberts Mountains (1)
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Round Mountain (1)
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South America
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Andes
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Eastern Cordillera (1)
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Patagonian Andes (2)
-
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Argentina (1)
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Bolivia (1)
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Chile
-
Magallanes Chile (1)
-
-
Colombia
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Magdalena Delta (1)
-
-
Ecuador (1)
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Patagonia
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Patagonian Andes (2)
-
-
-
South Island (3)
-
Southern Alps (3)
-
United States
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Alabama (1)
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Alaska
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Alaska Range (1)
-
Kodiak Island (1)
-
-
Arizona
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Yuma County Arizona (1)
-
-
Arkansas
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Polk County Arkansas (1)
-
-
Benton Uplift (1)
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California
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Imperial County California (1)
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Kern County California (1)
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Los Angeles County California (1)
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Mendocino County California (1)
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Northern California (2)
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Riverside County California (2)
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San Bernardino County California (1)
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San Francisco Bay region (1)
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Southern California (2)
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Tehama County California (2)
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Transverse Ranges (2)
-
-
Georgia (1)
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Great Basin (1)
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Mojave Desert (2)
-
Nevada
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Elko County Nevada (1)
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Eureka County Nevada (1)
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Nye County Nevada (1)
-
-
Oregon
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Lincoln County Oregon (1)
-
-
Ouachita Mountains (1)
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Utah (1)
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Washington (1)
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Western U.S. (2)
-
-
-
commodities
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oil and gas fields (1)
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petroleum (3)
-
-
elements, isotopes
-
isotope ratios (1)
-
isotopes
-
stable isotopes
-
Hf-177/Hf-176 (1)
-
-
-
metals
-
hafnium
-
Hf-177/Hf-176 (1)
-
-
lead (1)
-
rare earths (1)
-
-
-
fossils
-
microfossils
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Conodonta (1)
-
-
-
geochronology methods
-
(U-Th)/He (1)
-
Ar/Ar (4)
-
fission-track dating (1)
-
paleomagnetism (1)
-
Pb/Pb (1)
-
thermochronology (2)
-
U/Pb (11)
-
-
geologic age
-
Cenozoic
-
Quaternary
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Pleistocene (2)
-
-
Tertiary
-
Neogene
-
Miocene
-
lower Miocene
-
Aquitanian (1)
-
-
middle Miocene (1)
-
-
Pliocene (2)
-
-
Paleogene
-
Eocene (6)
-
Oligocene
-
upper Oligocene (1)
-
-
Paleocene (2)
-
-
-
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous (1)
-
Upper Cretaceous
-
Kodiak Formation (1)
-
-
-
Franciscan Complex (3)
-
Great Valley Sequence (1)
-
Jurassic
-
Coast Range Ophiolite (1)
-
Upper Jurassic (1)
-
-
Orocopia Schist (3)
-
Shimanto Group (2)
-
-
Moldanubian (1)
-
Paleozoic
-
Carboniferous
-
Mississippian
-
Lower Mississippian (1)
-
-
-
Devonian
-
Lower Devonian (1)
-
-
lower Paleozoic (1)
-
Ordovician (1)
-
Permian (1)
-
-
Precambrian
-
Archean (3)
-
upper Precambrian
-
Proterozoic
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Neoproterozoic (1)
-
Paleoproterozoic (1)
-
-
-
-
Rhenohercynian (1)
-
Saxothuringian (1)
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks
-
diabase (1)
-
diorites
-
tonalite (1)
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trondhjemite (1)
-
-
gabbros (2)
-
granites
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S-type granites (1)
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granodiorites (1)
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ultramafics (1)
-
-
volcanic rocks
-
adakites (3)
-
andesites
-
boninite (1)
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basalts
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shoshonite (1)
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pyroclastics
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tuff (1)
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rhyodacites (1)
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-
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ophiolite (2)
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volcanic ash (1)
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metamorphic rocks
-
metamorphic rocks
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amphibolites (1)
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eclogite (2)
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gneisses
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biotite gneiss (1)
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orthogneiss (2)
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granulites (2)
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metaigneous rocks
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metabasite (1)
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metaperidotite (1)
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serpentinite (2)
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metasedimentary rocks
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metasomatic rocks
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mylonites
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slates (1)
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ophiolite (2)
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minerals
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oxides
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phosphates
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apatite (1)
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monazite (2)
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silicates
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framework silicates
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feldspar group
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alkali feldspar
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K-feldspar (1)
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sanidine (2)
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plagioclase (1)
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silica minerals
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quartz (1)
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orthosilicates
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nesosilicates
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garnet group (2)
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titanite group
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titanite (1)
-
-
zircon group
-
zircon (9)
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-
-
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sheet silicates
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mica group
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biotite (1)
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-
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Primary terms
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absolute age (14)
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Africa
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Limpopo Belt (1)
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Southern Africa (1)
-
-
Asia
-
Central Asia
-
Kazakhstan
-
Almaty Kazakhstan (1)
-
-
Pamirs (2)
-
-
Far East
-
China
-
Altun Mountains (1)
-
Altyn Tagh Fault (2)
-
Qaidam Basin (1)
-
Qilian Mountains (1)
-
Qinghai China (1)
-
Tangshan China (1)
-
Tarim Platform (1)
-
Xizang China
-
Lhasa Block (3)
-
-
-
Japan
-
Honshu
-
Kii Peninsula (1)
-
Tohoku (1)
-
-
Kyushu (1)
-
Shikoku (1)
-
Shimanto Belt (1)
-
-
-
Himalayas (9)
-
Indian Peninsula
-
India
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Rajasthan India
-
Aravalli Range (1)
-
Mangalwar Complex (1)
-
-
-
Kohistan (1)
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Nepal (1)
-
Pakistan
-
North-West Frontier Pakistan (1)
-
-
-
Indus-Yarlung Zangbo suture zone (2)
-
Karakoram (1)
-
Novosibirsk Russian Federation (1)
-
Qiangtang Terrane (4)
-
Russian Pacific region (1)
-
Sakhalin Russian Federation
-
Kuril Islands
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Kunashir Island (1)
-
-
Sakhalin (1)
-
-
Tajikistan
-
Garm Tajikistan (1)
-
Tajik Depression (1)
-
-
Tibetan Plateau (7)
-
-
Atlantic Ocean
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North Atlantic
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Barbados Ridge (2)
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Caribbean Sea (1)
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Puerto Rico Trench (1)
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Australasia
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Canada
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Ungava (1)
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British Columbia
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Canadian Cordillera (1)
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-
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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 (1)
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Jamaica (1)
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Puerto Rico (1)
-
-
-
-
-
Cenozoic
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Quaternary
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Pleistocene (2)
-
-
Tertiary
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Neogene
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Miocene
-
lower Miocene
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Aquitanian (1)
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middle Miocene (1)
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Pliocene (2)
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Paleogene
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Eocene (6)
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Oligocene
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upper Oligocene (1)
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Paleocene (2)
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-
-
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Central America
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Costa Rica
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Nicoya Peninsula (1)
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Panama (4)
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continental shelf (1)
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crust (30)
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crystal growth (1)
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data processing (2)
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Deep Sea Drilling Project
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IPOD
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Leg 56
-
DSDP Site 436 (1)
-
-
Leg 78A
-
DSDP Site 541 (1)
-
DSDP Site 542 (1)
-
DSDP Site 543 (1)
-
-
Leg 84
-
DSDP Site 565 (1)
-
DSDP Site 566 (1)
-
DSDP Site 567 (1)
-
DSDP Site 568 (1)
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DSDP Site 569 (1)
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DSDP Site 570 (1)
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deformation (19)
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Earth (1)
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economic geology (2)
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Europe
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Carpathian Foredeep (1)
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Central Europe
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Bohemian Massif (2)
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Germany
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Potsdam Germany (1)
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Silesia (1)
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Moscow Russian Federation (1)
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Southern Europe
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Greece
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Crete (1)
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Epirus Greece (1)
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Greek Macedonia (1)
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Pindus Mountains (2)
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Italy
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Emilia-Romagna Italy (1)
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faults (91)
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Integrated Ocean Drilling Program
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Mesozoic
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Cretaceous
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Lower Cretaceous (1)
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Upper Cretaceous
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Kodiak Formation (1)
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-
-
Franciscan Complex (3)
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Great Valley Sequence (1)
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Jurassic
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Coast Range Ophiolite (1)
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Upper Jurassic (1)
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-
Orocopia Schist (3)
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Shimanto Group (2)
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metals
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lead (1)
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orthogneiss (2)
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metaperidotite (1)
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serpentinite (2)
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GeoRef Categories
Era and Period
Epoch and Age
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underthrust faults
Lithospheric Structure of the Central Altyn Tagh Fault System Revealed by Teleseismic Travel‐Time Tomography
Deposition, deformation, and flexure in a transpressional trough, Queen Charlotte fault, offshore Haida Gwaii (British Columbia, Canada)
Subduction initiation recorded in the Dadeville Complex of Alabama and Georgia, southeastern United States
Rift propagation in south Tibet controlled by under-thrusting of India: a case study of the Tangra Yumco graben (south Tibet)
Progressive Development of a Distributed Ductile Shear Zone beneath the Patagonian Retroarc Fold-Thrust Belt, Chile
Role of rift-inheritance and segmentation for orogenic evolution: example from the Pyrenean-Cantabrian system
940 Ma Anatexis in 1726 Ma Orthogneiss in the Northern Margin of the Bhilwara Belt and Significance for the Precambrian Evolution in Northwest India
Underthrusting and duplexing beneath the northern Tibetan Plateau and the evolution of the Himalayan-Tibetan orogen
Tectonostratigraphy and processes of frontal accretion with horst-graben subduction at the Japan Trench
ABSTRACT Recent seismic reflection data across the Japan Trench show that frontal accretion involves offscraping sediments on top of horsts and scooping-up sediment from grabens. However, seismic profiling does not illuminate the structure within the accretionary prism, and thus the processes of accretion and prism growth are unknown. Key data from scientific drilling at Integrated Ocean Drilling Program Site C0019 that penetrated the prism in the region of large displacement during the 2011 Tohoku earthquake support a model in which frontal accretion occurs by imbricate thrusting, folding, and stacking of thrust sheets that are composed of semicoherent-sediment strata. Using palinspastic restoration techniques, we conclude that out-of-sequence thrusting and duplex development during the underthrusting of horsts can form and displace hanging-wall ramps along the plate-boundary detachment, which helps to explain the formation of some unexpected tectonostratigraphic relations at C0019, such as the emplacement of a thick section of the youngest sediments at the base of the accretionary prism, and numerous juxtapositions of different-age sediments within the basal plate-boundary fault zone.
Provenance and metamorphism of the Swakane Gneiss: Implications for incorporation of sediment into the deep levels of the North Cascades continental magmatic arc, Washington
The Triassic Qiangtang metamorphic belt in central Tibet consists of eclogite- and blueschist-bearing tectonic mélange exposed in an intracontinental setting. Study of the belt has yielded insight about the tectonic history and crustal architecture of the Qiangtang terrane. Weakly deformed mafic blocks exhibiting high-pressure, low-temperature metamorphic mineral assemblages are exposed within a greenschist facies sedimentary-matrix mélange over an east-west distance of ~600 km and north-south distance of ~150 km. Everywhere it has been mapped, the Qiangtang mélange is exposed in the footwalls of Late Triassic–Early Jurassic domal, low-angle normal faults. The hanging walls of these normal faults are composed of late Paleozoic to early Mesozoic metasedimentary and crystalline rocks; similar lithologies are exposed in footwall mélange rocks. High-pressure metamorphism occurred during Middle Triassic time. Regional geological mapping and provenance of detrital zircon crystals from late Paleozoic to Mesozoic supracrustal rocks of the Qiangtang terrane indicate that Qiangtang crust exposed on the north and south sides of the metamorphic belt are of Gondwanan affinity. This is at odds with the widely held belief that the Qiangtang metamorphic belt marks a suture between a Gondwanan affinity southern and/ or western Qiangtang terrane and a Cathayasian affinity northern and/or eastern Qiangtang terrane. Furthermore, metasedimentary rocks exposed within the metamorphic belt yield detrital zircon age probability distributions consistent with derivation from Qiangtang terrane supracrustal strata and Paleo-Tethys affinity rocks exposed north of the Qiangtang terrane. These data, along with the significant north-south surface exposure of the metamorphic belt, suggest that a large part of the lower to middle crust is composed of silica-rich metasedimentary-dominated mélange rock that formed during Middle Triassic southward subduction along the Jinsha suture on the northern edge of the Qiangtang terrane. The implied crustal structure, which is also defined by geophysical experiments, provides an explanation for the apparent deviation from Airy isostasy from the Lhasa terrane to the Qiangtang terrane. We suggest that the replacement or partial incorporation of mafic crystalline middle to lower crust with less dense metasedimentary mélange rock led to a significant contribution of Pratt isostasy across central Tibet.
Abstract This paper summarizes the current knowledge on the nature, kinematics and timing of movement along major tectonic boundaries in the Bohemian Massif and demonstrates how the Variscan plutonism and deformation evolved in space and time. Four main episodes are recognized: (1) Late Devonian–early Carboniferous subduction and continental underthrusting of the Saxothuringian Unit beneath the Teplá–Barrandian Unit resulted in the orogen-perpendicular shortening and growth of an inboard magmatic arc during c. 354–346 Ma; (2) the subduction-driven shortening was replaced by collapse of the Teplá–Barrandian upper crust, exhumation of the high-grade (Moldanubian) core of the orogen at c. 346–337 Ma and by dextral strike-slip along orogen-perpendicular NW–SE shear zones; (3) following closure of a Rhenohercynian Ocean basin, the Brunia microplate was underthrust beneath the eastern flank of the Saxothuringian/Teplá–Barrandian/Moldanubian ‘assemblage’; this process commenced at c. 346 Ma in the NE and ceased at c. 335 Ma in the SW; and (4) late readjustments within the amalgamated Bohemian Massif included crustal exhumation and mainly S-type granite plutonism along the edge of the Brunia indentor at c. 330–327 Ma, and peripheral tectonothermal activity driven by strike-slip faulting and possibly mantle delamination around the consolidated Bohemian Massif's interior until late Carboniferous–earliest Permian times.
Foreland basin subsidence driven by topographic growth versus plate subduction
Crustal–lithospheric structure and continental extrusion of Tibet
Tectonic and sedimentary evolution of the frontal part of an ancient subduction complex at the transition from accretion to erosion: The case of the Ligurian wedge of the northern Apennines, Italy
Do Cenozoic analogues support a plate tectonic origin for Earth's earliest continental crust?
A low-velocity zone with weak reflectivity along the Nankai subduction zone
Detrital zircon evidence for progressive underthrusting in Franciscan metagraywackes, west-central California
Abstract This field guide describes a two-and-one-half day transect, from east to west across southern California, from the Colorado River to the San Andreas fault. Recent geochronologic results for rocks along the transect indicate the spatial and temporal relationships between subarc and retroarc shortening and Cordilleran arc magmatism. The transect begins in the Jurassic(?) and Cretaceous Maria retroarc fold-and-thrust belt, and continues westward and structurally downward into the Triassic to Cretaceous magmatic arc. At the deepest structural levels exposed in the southwestern part of the transect, the lower crust of the Mesozoic arc has been replaced during underthrusting by the Maastrichtian and/or Paleocene Orocopia schist.
Geophysical and geological observations document that beneath the submerged forearc, processes of sediment subduction and subduction erosion move large volumes of material toward the mantle. The conveying system is the subduction channel separating the upper plate from the underthrusting ocean plate. Globally, the zero-porosity or solid-volume rate at which continental debris is shuttled toward the mantle is estimated to be ∼2.5 km 3 /yr. To deliver this volume, the average thickness of the subduction channel is ∼1.0 km. Some deeply subducted material is returned to the surface of Earth as a component of arc magma or as tracks of high- P/T crustal underplates. But over long periods of time (>50 m.y.), most of the removed material is evidently recycled to the mantle. Applying Cenozoic recycling rates to the past astonishingly implies that since 2.5 Ga a volume of continental crust equal to the standing inventory of ∼6 × 10 9 km 3 has been removed from the surface of Earth. This minimum estimate does not include crustal material recycled at continental collision zones nor reliable estimates of recycling where large accretionary bodies form. The volume of demolished crust is so large that recycling must have been a major factor determining the areal pattern and age distribution of continental crust. The small areal exposure of Archean rock is thus probably more a consequence of long-term crustal survival than the volume originally produced. Reconstruction of older supercontinents is made difficult if not unachievable by the progressive truncation of continental edges effected by subduction zone recycling, in particular by subduction erosion.