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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Central Africa
-
Congo Democratic Republic
-
Kasai (1)
-
-
-
North Africa
-
Atlas Mountains
-
Moroccan Atlas Mountains
-
High Atlas (1)
-
-
-
Egypt
-
Eastern Desert (1)
-
-
Morocco
-
Moroccan Atlas Mountains
-
High Atlas (1)
-
-
Rif (1)
-
-
-
Nubian Shield (2)
-
Southern Africa
-
Namibia
-
Kaoko Belt (1)
-
-
South Africa
-
Bushveld Complex (1)
-
Cape fold belt (1)
-
Merensky Reef (1)
-
-
Zimbabwe
-
Great Dyke (1)
-
-
-
-
Altiplano (6)
-
Antarctica
-
Antarctic Peninsula (3)
-
Transantarctic Mountains (1)
-
-
Arctic Ocean
-
Norwegian Sea
-
Haltenbanken (1)
-
-
-
Arctic region
-
Greenland
-
East Greenland (1)
-
Northern Greenland (1)
-
Skaergaard Intrusion (1)
-
-
-
Asia
-
Altai Mountains
-
Mongolian Altai (1)
-
-
Arabian Peninsula
-
Arabian Shield (3)
-
Saudi Arabia (1)
-
-
Far East
-
China
-
Da Hinggan Ling (1)
-
Hebei China
-
Beijing China (1)
-
-
Hong Kong (1)
-
Inner Mongolia China (1)
-
Jilin China (1)
-
Sichuan China (1)
-
-
Mongolia
-
Mongolian Altai (1)
-
-
Taiwan (1)
-
-
Gobi Desert (1)
-
Himalayas (2)
-
Indian Peninsula
-
India
-
Gujarat India
-
Kutch India (1)
-
-
Himachal Pradesh India
-
Spiti (1)
-
-
Uttar Pradesh India (1)
-
-
-
Middle East
-
Iran
-
Fars Iran (1)
-
-
Turkey
-
Amasra Basin (1)
-
Anatolia (1)
-
Taurus Mountains (1)
-
Zonguldak Turkey (1)
-
-
Zagros (1)
-
-
Siberia (1)
-
Tibetan Plateau (1)
-
-
Atlantic Ocean
-
North Atlantic
-
Caribbean Sea
-
Cariaco Basin (1)
-
-
Gulf of Mexico
-
Campeche Scarp (1)
-
Florida Escarpment (1)
-
-
-
South Atlantic (2)
-
-
Atlantic Ocean Islands
-
Canary Islands
-
Hierro (1)
-
-
Falkland Islands (1)
-
-
Atlantic region (1)
-
Austral Basin (4)
-
Australasia
-
Australia
-
Western Australia
-
Capricorn Orogen (1)
-
Pilbara Craton (1)
-
-
-
-
Caledonides (1)
-
Canada
-
Eastern Canada
-
Meguma Terrane (1)
-
Newfoundland and Labrador
-
Newfoundland (2)
-
-
-
Western Canada
-
British Columbia (1)
-
Canadian Rocky Mountains (1)
-
Manitoba
-
Tanco Pegmatite (2)
-
-
-
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
-
Cuba
-
Santiago de Cuba (1)
-
-
Hispaniola
-
Haiti (2)
-
-
Puerto Rico (1)
-
-
Lesser Antilles
-
Barbados (1)
-
Trinidad and Tobago
-
Trinidad (2)
-
-
-
-
-
-
Central America
-
Belize (1)
-
Guatemala (2)
-
Honduras (1)
-
-
Central Cordillera (1)
-
Colorado River (1)
-
Commonwealth of Independent States
-
Donets Basin (1)
-
Russian Federation
-
Central Urals (1)
-
-
Urals
-
Central Urals (1)
-
-
-
Cordillera de la Costa (2)
-
Europe
-
Alps
-
Central Alps (2)
-
Eastern Alps
-
Carnic Alps (1)
-
Dinaric Alps
-
Velebit Mountains (1)
-
-
Karawanken (1)
-
-
Western Alps
-
Mont Blanc (1)
-
-
-
Balkan Peninsula (1)
-
Carpathians (1)
-
Central Europe
-
Bohemian Massif (3)
-
Czech Republic
-
Barrandian Basin (1)
-
Moravia (1)
-
-
Poland
-
Dolnoslaskie Poland
-
Strzegom-Sobotka Massif (2)
-
-
Lower Silesia (1)
-
Polish Sudeten Mountains (2)
-
Sowie Mountains (1)
-
-
Sudeten Mountains
-
Polish Sudeten Mountains (2)
-
Sowie Mountains (1)
-
-
-
Donets Basin (1)
-
Jura Mountains (1)
-
Lublin Basin (1)
-
Pannonian Basin (1)
-
Pyrenees
-
Spanish Pyrenees (1)
-
-
Saar Basin (1)
-
Southern Europe
-
Croatia
-
Velebit Mountains (1)
-
-
Dinaric Alps
-
Velebit Mountains (1)
-
-
Dobruja Basin (1)
-
Iberian Peninsula
-
Central Iberian Zone (8)
-
Duero Basin (1)
-
Iberian Massif (15)
-
Iberian pyrite belt (1)
-
Ossa-Morena Zone (12)
-
Portugal
-
Tras-os-Montes (1)
-
-
Spain
-
Andalusia Spain
-
Almeria Spain (1)
-
Alpujarride Complex (3)
-
Cordoba Spain (3)
-
Granada Spain
-
Granada City Spain (1)
-
Granada Depression (2)
-
-
Huelva Spain (1)
-
Malaguide Complex (1)
-
Nevado-Filabride Complex (1)
-
Seville Spain (1)
-
-
Aragon Spain
-
Saragossa Spain (1)
-
-
Asturias Spain (1)
-
Basque Provinces Spain (2)
-
Betic Cordillera (5)
-
Betic Zone (1)
-
Cantabria Spain (1)
-
Cantabrian Mountains (5)
-
Castilla y Leon Spain
-
Leon Spain (1)
-
Salamanca Spain (1)
-
-
Castilla-La Mancha Spain
-
Toledo Spain (1)
-
-
Extremadura Spain (4)
-
Galicia Spain
-
Cabo Ortegal Complex (1)
-
-
Iberian Mountains (3)
-
Madrid Spain (1)
-
Murcia Spain (1)
-
Navarra Spain (1)
-
Sierra de Guadarrama (2)
-
Sierra Morena (1)
-
Spanish Pyrenees (1)
-
Subbetic Zone (2)
-
Valencia region
-
Alicante Spain (2)
-
-
-
Spanish Central System (2)
-
-
Italy
-
Apennines
-
Central Apennines (1)
-
-
Lombardy Italy
-
Sondrio Italy (2)
-
-
-
Serbia (1)
-
-
Variscides (5)
-
Volhynia (1)
-
Western Europe
-
France
-
Armorican Massif (5)
-
Central Massif (4)
-
Monts du Lyonnais (1)
-
-
Ireland
-
Galway Ireland
-
Galway Granite (1)
-
-
-
Scandinavia
-
Norway
-
Southern Norway (1)
-
-
-
United Kingdom
-
Great Britain (1)
-
-
-
-
Franklin Mountains (2)
-
Gulf of Mexico Basin (2)
-
Indian Ocean
-
Dampier Sub-basin (1)
-
-
Llanos (1)
-
Mediterranean region (2)
-
Mediterranean Sea
-
West Mediterranean
-
Alboran Sea (1)
-
Balearic Basin (1)
-
-
-
Meseta (3)
-
Mexico
-
Baja California (5)
-
Baja California Mexico
-
Mexicali Mexico (1)
-
-
Baja California Sur Mexico
-
Vizcaino Peninsula (1)
-
-
Chiapas Mexico (1)
-
Chihuahua Mexico (3)
-
Coahuila Mexico (1)
-
Guanajuato Mexico (1)
-
Guerrero Terrane (2)
-
Jalisco Block (5)
-
Jalisco Mexico
-
Colima (1)
-
Guadalajara Mexico (1)
-
-
Michoacan Mexico (1)
-
Oaxaca Mexico (1)
-
Popocatepetl (1)
-
Puebla Mexico
-
Los Humeros (1)
-
-
Queretaro Mexico (1)
-
Sierra Madre Oriental (1)
-
Sonora Mexico (3)
-
Tabasco Mexico (1)
-
Tamaulipas Mexico (1)
-
Trans-Mexican volcanic belt (4)
-
Veracruz Mexico (1)
-
-
North America
-
Appalachians
-
Central Appalachians (1)
-
Piedmont (1)
-
Southern Appalachians (1)
-
-
Basin and Range Province (2)
-
Hueco Bolson (1)
-
Mexicali Valley (1)
-
North American Cordillera (1)
-
Pedregosa Basin (1)
-
Rio Grande Rift (1)
-
Rocky Mountains
-
Canadian Rocky Mountains (1)
-
U. S. Rocky Mountains (1)
-
-
Shuswap Complex (1)
-
Western Overthrust Belt (1)
-
-
North West Shelf (1)
-
Pacific Ocean
-
East Pacific
-
Northeast Pacific
-
Gulf of California (7)
-
-
Peru-Chile Trench (2)
-
-
North Pacific
-
Northeast Pacific
-
Gulf of California (7)
-
-
-
-
Peninsular Ranges (2)
-
Permian Basin (1)
-
Puna (7)
-
Rio Blanco Basin (1)
-
Rio Grande (1)
-
San Andreas Fault (1)
-
San Jorge Basin (3)
-
Sierra de San Luis (9)
-
Sierra Nevada (4)
-
Sinai (1)
-
South America
-
Amazonian Craton (1)
-
Andes
-
Central Andes (13)
-
Eastern Cordillera (10)
-
Northern Andes (1)
-
Patagonian Andes (2)
-
Sierra de Perija (1)
-
Subandean Belt (1)
-
-
Argentina
-
Buenos Aires Argentina (5)
-
Catamarca Argentina (1)
-
Chubut Argentina (7)
-
Corrientes Argentina (3)
-
Entre Rios Argentina (2)
-
Jujuy Argentina (9)
-
La Pampa Argentina (3)
-
La Rioja Argentina (17)
-
Mendoza Argentina (16)
-
Neuquen Argentina (5)
-
Neuquen Basin (13)
-
Paganzo Basin (3)
-
Pampas (3)
-
Pampean Mountains (46)
-
Rio Negro Argentina (4)
-
Salta Argentina (12)
-
San Juan Argentina
-
Talacasto Argentina (1)
-
-
San Luis Argentina (10)
-
Santa Cruz Argentina
-
Deseado Massif (1)
-
-
Santiago del Estero Argentina (2)
-
Tucuman Argentina (2)
-
-
Bolivia (12)
-
Brazil
-
Borborema Province (1)
-
Brazilian Shield (2)
-
Minas Gerais Brazil (1)
-
Rio Grande do Norte Brazil (1)
-
Rio Grande do Sul Brazil (1)
-
Sao Paulo Brazil (1)
-
-
Chaco (1)
-
Chile
-
Aisen del General Carlos Ibanez del Campo Chile
-
Aisen Chile (1)
-
-
Antofagasta Chile (1)
-
Magallanes Chile (2)
-
-
Colombia
-
Antioquia Colombia (1)
-
La Venta (1)
-
-
Dom Feliciano Belt (1)
-
Ecuador (1)
-
Falkland Islands (1)
-
Guajira Peninsula (2)
-
Paraguay (1)
-
Parana Basin (1)
-
Parana River (1)
-
Patagonia
-
Patagonian Andes (2)
-
-
Patagonian Batholith (2)
-
Peru (5)
-
Precordillera (27)
-
Rio de la Plata (1)
-
Rio de la Plata Craton (3)
-
Tierra del Fuego
-
Tierra del Fuego Island (1)
-
-
Uruguay (4)
-
Venezuela
-
Maracaibo Basin (1)
-
Merida Venezuela (1)
-
Sucre Venezuela
-
Paria Peninsula (1)
-
-
-
-
United States
-
Alabama
-
Jackson County Alabama (1)
-
Jefferson County Alabama (1)
-
Shelby County Alabama (1)
-
-
Arizona
-
Cochise County Arizona (1)
-
-
California
-
Central California (1)
-
Fresno County California (1)
-
Imperial County California (1)
-
Kings Canyon National Park (1)
-
Salton Trough (3)
-
San Diego County California (1)
-
Sierra Nevada Batholith (1)
-
Southern California (3)
-
-
Colorado (1)
-
Colorado Plateau (2)
-
Idaho (1)
-
Maryland (1)
-
Montana (1)
-
New Mexico
-
Dona Ana County New Mexico (1)
-
Grant County New Mexico (1)
-
Hidalgo County New Mexico (1)
-
-
North Carolina
-
Macon County North Carolina (1)
-
-
Orogrande Basin (1)
-
Pennsylvania (1)
-
Sevier orogenic belt (1)
-
Southwestern U.S. (1)
-
Texas
-
Burnet County Texas (1)
-
Comal County Texas (1)
-
El Paso County Texas
-
El Paso Texas (1)
-
-
Grayson County Texas (1)
-
Parker County Texas (1)
-
Tarrant County Texas (1)
-
Travis County Texas (1)
-
West Texas (4)
-
-
U. S. Rocky Mountains (1)
-
Utah (1)
-
Virginia (1)
-
Western U.S. (3)
-
Wyoming
-
Big Horn County Wyoming (1)
-
-
-
Veracruz Basin (5)
-
Yucatan Peninsula (1)
-
-
commodities
-
bitumens
-
asphalt (1)
-
-
brines (1)
-
construction materials
-
cement materials (1)
-
dimension stone (1)
-
-
diamond deposits (1)
-
energy sources (1)
-
gems (1)
-
geothermal energy (2)
-
high-level geothermal energy (1)
-
magnesite deposits (1)
-
metal ores
-
arsenic ores (1)
-
base metals (1)
-
beryllium ores (1)
-
chromite ores (1)
-
copper ores (4)
-
gold ores (4)
-
lead ores (1)
-
lead-zinc deposits (1)
-
lithium ores (3)
-
molybdenum ores (1)
-
nickel ores (3)
-
niobium ores (5)
-
platinum ores (2)
-
polymetallic ores (2)
-
rare earth deposits (3)
-
silver ores (2)
-
tantalum ores (3)
-
thorium ores (1)
-
tin ores (2)
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tungsten ores (1)
-
uranium ores (1)
-
zinc ores (1)
-
-
mineral deposits, genesis (12)
-
mineral exploration (5)
-
mineral resources (1)
-
nonmetal deposits (1)
-
oil and gas fields (6)
-
ornamental materials (1)
-
petroleum
-
natural gas (6)
-
shale oil (1)
-
-
placers (1)
-
tight sands (1)
-
water resources (3)
-
-
elements, isotopes
-
boron
-
B-11/B-10 (2)
-
-
carbon
-
C-13/C-12 (8)
-
C-14 (1)
-
organic carbon (2)
-
-
chemical ratios (2)
-
halogens
-
fluorine (5)
-
-
isotope ratios (34)
-
isotopes
-
radioactive isotopes
-
Be-10 (1)
-
Be-10/Be-9 (1)
-
C-14 (1)
-
Pb-206/Pb-204 (3)
-
Pb-207/Pb-204 (3)
-
Pb-208/Pb-204 (3)
-
Rb-87/Sr-86 (1)
-
Re-187/Os-188 (1)
-
Sm-147/Nd-144 (2)
-
U-238/Pb-206 (1)
-
-
stable isotopes
-
B-11/B-10 (2)
-
Be-10/Be-9 (1)
-
C-13/C-12 (8)
-
Hf-177/Hf-176 (6)
-
Nd-144/Nd-143 (7)
-
O-18/O-16 (9)
-
Pb-206/Pb-204 (3)
-
Pb-207/Pb-204 (3)
-
Pb-208/Pb-204 (3)
-
Rb-87/Sr-86 (1)
-
Re-187/Os-188 (1)
-
S-34/S-32 (1)
-
Sm-147/Nd-144 (2)
-
Sr-87/Sr-86 (7)
-
U-238/Pb-206 (1)
-
-
-
large-ion lithophile elements (1)
-
Lu/Hf (4)
-
metals
-
actinides
-
thorium (1)
-
uranium
-
U-238/Pb-206 (1)
-
-
-
alkali metals
-
cesium (1)
-
lithium (4)
-
potassium (1)
-
rubidium
-
Rb-87/Sr-86 (1)
-
-
sodium (3)
-
-
alkaline earth metals
-
barium (1)
-
beryllium
-
Be-10 (1)
-
Be-10/Be-9 (1)
-
-
calcium (2)
-
strontium
-
Rb-87/Sr-86 (1)
-
Sr-87/Sr-86 (7)
-
-
-
aluminum (2)
-
arsenic (2)
-
bismuth (2)
-
chromium (1)
-
germanium (1)
-
hafnium
-
Hf-177/Hf-176 (6)
-
-
indium (1)
-
iron (2)
-
lead
-
Pb-206/Pb-204 (3)
-
Pb-207/Pb-204 (3)
-
Pb-208/Pb-204 (3)
-
U-238/Pb-206 (1)
-
-
manganese (2)
-
niobium (8)
-
platinum group
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iridium (1)
-
osmium
-
Re-187/Os-188 (1)
-
-
palladium (2)
-
platinum (1)
-
platinum ores (2)
-
ruthenium (1)
-
-
precious metals (1)
-
rare earths
-
europium (1)
-
neodymium
-
Nd-144/Nd-143 (7)
-
Sm-147/Nd-144 (2)
-
-
samarium
-
Sm-147/Nd-144 (2)
-
-
yttrium (4)
-
-
rhenium
-
Re-187/Os-188 (1)
-
-
tantalum (2)
-
tin (1)
-
titanium (1)
-
zinc (2)
-
zirconium (1)
-
-
oxygen
-
O-18/O-16 (9)
-
-
phosphorus (1)
-
selenium (1)
-
sulfur
-
S-34/S-32 (1)
-
-
tellurium (2)
-
-
fossils
-
borings (1)
-
burrows (1)
-
Chordata
-
Vertebrata
-
Tetrapoda
-
Mammalia
-
Theria
-
Eutheria
-
Artiodactyla
-
Ruminantia
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Tylopoda
-
Camelidae (1)
-
-
-
-
Carnivora
-
Fissipeda
-
Felidae
-
Smilodon (1)
-
-
Ursidae (1)
-
-
-
Edentata
-
Xenarthra
-
Cingulata (2)
-
-
-
Rodentia
-
Caviomorpha (1)
-
Myomorpha
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Cricetidae (1)
-
-
-
-
-
-
Reptilia
-
Diapsida
-
Archosauria
-
dinosaurs
-
Saurischia
-
Sauropodomorpha
-
Sauropoda (1)
-
-
-
-
-
Ichthyosauria (1)
-
Lepidosauria
-
Rhynchocephalia (1)
-
-
Sauropterygia
-
Plesiosauria (1)
-
-
-
Synapsida
-
Therapsida
-
Cynodontia (1)
-
-
-
-
-
-
-
Cloudina (1)
-
coprolites (2)
-
cyanobacteria (1)
-
Graptolithina
-
Graptoloidea (1)
-
-
Hemichordata (2)
-
ichnofossils
-
Cruziana (1)
-
Rusophycus (1)
-
-
Invertebrata
-
Archaeocyatha (2)
-
Arthropoda
-
Mandibulata
-
Insecta
-
Pterygota
-
Neoptera
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Endopterygota
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Hymenoptera (1)
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-
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-
-
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Trilobitomorpha
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Trilobita
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Phacopida (4)
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Ptychopariida
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Olenidae (1)
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Brachiopoda
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Articulata
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Strophomenida (2)
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Inarticulata
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Lingula (1)
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Cnidaria
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Anthozoa
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Rugosa (1)
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Echinodermata
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Crinozoa
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Crinoidea (1)
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Mollusca
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Bivalvia
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Heterodonta
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Veneroida
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Carditidae (1)
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Cephalopoda
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Ammonoidea (3)
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Gastropoda
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Naticidae (1)
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Hyolithes (2)
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Porifera (3)
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Protista
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Metazoa (1)
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microfossils
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Conodonta
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Neognathodus (1)
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problematic microfossils (1)
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palynomorphs
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acritarchs (2)
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Cicatricosisporites (1)
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pollen (7)
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Plantae
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algae
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Chlorophyta (1)
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nannofossils (1)
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Pteridophyta
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Lycopsida (2)
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Equisetales (1)
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Spermatophyta
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Angiospermae
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Gymnospermae
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Coniferales (1)
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problematic fossils
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problematic microfossils (1)
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Pterobranchia (1)
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thallophytes (1)
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geochronology methods
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(U-Th)/He (3)
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Ar/Ar (13)
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fission-track dating (7)
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K/Ar (7)
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Lu/Hf (4)
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paleomagnetism (10)
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Pb/Pb (1)
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Rb/Sr (2)
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Sm/Nd (2)
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thermochronology (9)
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U/Pb (67)
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U/Th/Pb (3)
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geologic age
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Cenozoic
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Quaternary
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Holocene
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upper Holocene (3)
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Pleistocene
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Tertiary
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Neogene
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Hemphillian (1)
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Miocene
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Pliocene
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middle Pliocene (1)
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Paleogene
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Eocene
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middle Eocene (2)
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upper Eocene
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Priabonian (1)
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-
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Oligocene
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upper Oligocene (1)
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Paleocene
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lower Paleocene
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Danian (2)
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-
-
-
Sarmiento Formation (2)
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upper Cenozoic (1)
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Mesozoic
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Cretaceous
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Comanchean (2)
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Lower Cretaceous
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Agrio Formation (3)
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Albian (4)
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Aptian (1)
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Barremian (1)
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Berriasian (2)
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Hauterivian (1)
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Valanginian (2)
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Middle Cretaceous (1)
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Upper Cretaceous
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Coniacian (1)
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Maestrichtian (2)
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Neuquen Group (2)
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Yacoraite Formation (1)
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Glen Canyon Group (1)
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Jurassic
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Lower Jurassic
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Hettangian (1)
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middle Liassic (1)
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Pliensbachian (3)
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Sinemurian (1)
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Toarcian (3)
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upper Liassic (1)
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Middle Jurassic
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Bajocian (1)
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San Rafael Group (1)
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Upper Jurassic
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Kimmeridgian (2)
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Tithonian (4)
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-
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Triassic
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Lower Triassic
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Olenekian (2)
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Permian-Triassic boundary (2)
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Middle Triassic (1)
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Upper Triassic
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Carnian (3)
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Chinle Formation (1)
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Norian (1)
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-
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Vaca Muerta Formation (6)
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Yanshanian (1)
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Moldanubian (1)
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Paleozoic
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Cambrian
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Conasauga Group (1)
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Lower Cambrian
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Terreneuvian (4)
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Middle Cambrian
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Burgess Shale (1)
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Upper Cambrian
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Furongian (2)
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Carboniferous
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Lower Carboniferous
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Dinantian (4)
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Mississippian
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Lower Mississippian
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Tournaisian (1)
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Middle Mississippian
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Visean
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upper Visean (2)
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Upper Mississippian
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Hartselle Sandstone (1)
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Serpukhovian (2)
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Pennsylvanian
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Upper Pennsylvanian (1)
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Upper Carboniferous (4)
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Devonian
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Pragian (2)
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Middle Devonian
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Eifelian (1)
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Upper Devonian
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Famennian (1)
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Zlichovian (1)
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Itarare Subgroup (2)
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Knox Group (1)
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lower Paleozoic (6)
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middle Paleozoic (1)
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Ordovician
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Lower Ordovician
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Arenigian (2)
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Tremadocian (6)
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Middle Ordovician
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Dapingian (1)
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Darriwilian (3)
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Upper Ordovician
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Caradocian (1)
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Hirnantian (1)
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Sandbian (2)
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-
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Paganzo Group (2)
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Permian
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Guadalupian (1)
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Lower Permian
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Cisuralian (1)
-
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Upper Permian
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Lopingian
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Changhsingian (1)
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Permian-Triassic boundary (2)
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Silurian
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Upper Silurian (1)
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upper Paleozoic (8)
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Wissahickon Formation (1)
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Phanerozoic (2)
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Precambrian
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Stillwater Complex (1)
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upper Precambrian
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Proterozoic
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Mesoproterozoic (5)
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Neoproterozoic
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Cryogenian (1)
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Ediacaran (9)
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Maranon Complex (1)
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Vendian (3)
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Paleoproterozoic
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Birimian (1)
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-
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Saxothuringian (1)
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igneous rocks
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igneous rocks
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carbonatites (1)
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plutonic rocks
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diabase (1)
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tonalite (6)
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trondhjemite (1)
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gabbros (3)
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granites
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alkali granites (1)
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aplite (1)
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A-type granites (3)
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granosyenite (1)
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I-type granites (1)
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leucogranite (4)
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micropegmatite (1)
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monzogranite (3)
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S-type granites (4)
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granodiorites (7)
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lamprophyres
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minette (1)
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monzodiorite (2)
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monzonites (1)
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pegmatite (35)
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quartz monzonite (1)
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syenites
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granosyenite (1)
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ultramafics
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chromitite (3)
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peridotites
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dunite (2)
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harzburgite (1)
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pyroxenite
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clinopyroxenite (1)
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porphyry (2)
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volcanic rocks
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adakites (1)
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andesites (4)
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basalts
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alkali basalts
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spilite (1)
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flood basalts (1)
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mid-ocean ridge basalts (2)
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ocean-island basalts (1)
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tholeiitic basalt (1)
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dacites (1)
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pyroclastics
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ignimbrite (3)
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tuff (3)
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rhyodacites (1)
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rhyolites (3)
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ophiolite (5)
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metamorphic rocks
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metamorphic rocks
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amphibolites (6)
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gneisses
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orthogneiss (4)
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paragneiss (1)
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listwanite (1)
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marbles (1)
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metaigneous rocks
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metabasalt (1)
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metabasite (2)
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metagabbro (2)
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serpentinite (2)
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metasedimentary rocks
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metaconglomerate (1)
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metasandstone (1)
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paragneiss (1)
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metasomatic rocks
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fenite (1)
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greisen (2)
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serpentinite (2)
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skarn (1)
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migmatites
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anatexite (1)
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mylonites (4)
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phyllites (1)
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quartzites (1)
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schists
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tourmalinite (1)
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-
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ophiolite (5)
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turbidite (2)
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minerals
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alloys (1)
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arsenates (3)
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bismuthides (1)
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carbonates
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calcite (3)
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cancrinite (1)
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dawsonite (1)
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kutnohorite (1)
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rhodochrosite (1)
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siderite (1)
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halides
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fluorides
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triplite (2)
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zinnwaldite (1)
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minerals (1)
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molybdates (1)
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oxides
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cassiterite (2)
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chrysoberyl (1)
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gahnite (2)
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goethite (1)
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ilmenite (2)
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magnetite (5)
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niobates
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columbite (10)
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ixiolite (2)
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pyrochlore (3)
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samarskite (1)
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pyrophanite (1)
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rutile (3)
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sapphire (1)
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spinel (1)
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spinel group (2)
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tantalates
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ixiolite (2)
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microlite (3)
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tantalite (2)
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wodginite (3)
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titanomagnetite (1)
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uraninite (1)
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phosphates
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amblygonite (2)
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apatite (11)
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britholite (1)
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crandallite (1)
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fluorapatite (4)
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goyazite (1)
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graftonite (1)
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lithiophilite (1)
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monazite (5)
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montebrasite (2)
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sarcopside (1)
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triphylite (1)
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selenides (1)
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silicates
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chain silicates
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amphibole group
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clinoamphibole
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tschermakite (1)
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orthoamphibole
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holmquistite (1)
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pyroxene group
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clinopyroxene
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hedenbergite (1)
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orthopyroxene (1)
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framework silicates
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cancrinite (1)
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feldspar group
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alkali feldspar
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amazonite (2)
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K-feldspar (4)
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microcline (1)
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sanidine (1)
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plagioclase
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albite (3)
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oligoclase (1)
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-
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nepheline group
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nepheline (1)
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silica minerals
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chalcedony (1)
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quartz (5)
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sodalite group
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helvite (2)
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sodalite (1)
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zeolite group
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analcime (1)
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pollucite (2)
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-
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orthosilicates
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nesosilicates
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britholite group
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britholite (1)
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datolite group
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gadolinite (1)
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dumortierite (1)
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garnet group
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andradite (1)
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grossular (1)
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kyanite (1)
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olivine group
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olivine (1)
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phenakite group
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phenakite (1)
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staurolite (1)
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titanite group
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titanite (1)
-
-
topaz (1)
-
zircon group
-
zircon (55)
-
-
-
sorosilicates
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bertrandite (1)
-
epidote group
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allanite (1)
-
epidote (1)
-
-
-
-
ring silicates
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aquamarine (1)
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beryl (7)
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cordierite (2)
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tourmaline group
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dravite (1)
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elbaite (2)
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schorl (1)
-
-
-
sheet silicates
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chlorite group
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chlorite (2)
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clay minerals
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kaolinite (3)
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smectite (4)
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illite (5)
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mica group
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biotite (2)
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glauconite (1)
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lepidolite (2)
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muscovite (3)
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phlogopite (1)
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polylithionite (1)
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zinnwaldite (1)
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palygorskite (1)
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petalite (3)
-
-
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sulfates
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anhydrite (1)
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barite (1)
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copiapite (1)
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gypsum (1)
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halotrichite (1)
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jarosite (2)
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pickeringite (1)
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rozenite (1)
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sulfides
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acanthite (1)
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aikinite (1)
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bismuthinite (2)
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bornite (1)
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chalcocite (1)
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chalcopyrite (2)
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copper sulfides (1)
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covellite (1)
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galena (3)
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greenockite (1)
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helvite (2)
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iron sulfides (1)
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joseite (1)
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millerite (1)
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molybdenite (1)
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nickel sulfides (1)
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pyrite (3)
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pyrrhotite (1)
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sphalerite (2)
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tetradymite (1)
-
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sulfosalts
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sulfantimonites
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geocronite (1)
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polybasite (1)
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tetrahedrite (2)
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sulfarsenites
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geocronite (1)
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pearceite (1)
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tennantite (1)
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sulfobismuthites
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berryite (1)
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emplectite (1)
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matildite (1)
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wittichenite (1)
-
-
-
tellurides
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hessite (1)
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joseite (1)
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tetradymite (1)
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tungstates
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ferberite (1)
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scheelite (1)
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wolframite (1)
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uranium minerals (2)
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vanadates (2)
-
-
Primary terms
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absolute age (77)
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Africa
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Central Africa
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Congo Democratic Republic
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Kasai (1)
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North Africa
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Atlas Mountains
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Moroccan Atlas Mountains
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High Atlas (1)
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Egypt
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Morocco
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Rif (1)
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Nubian Shield (2)
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Southern Africa
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Kaoko Belt (1)
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South Africa
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Bushveld Complex (1)
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Cape fold belt (1)
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Merensky Reef (1)
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Zimbabwe
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Great Dyke (1)
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Antarctica
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Antarctic Peninsula (3)
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Transantarctic Mountains (1)
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Arctic Ocean
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Norwegian Sea
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Arctic region
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Asia
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Altai Mountains
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Arabian Peninsula
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Far East
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China
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Hebei China
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Mongolia
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Indian Peninsula
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India
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Middle East
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Iran
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Turkey
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Zagros (1)
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Siberia (1)
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Tibetan Plateau (1)
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Atlantic Ocean
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North Atlantic
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Caribbean Sea
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Cariaco Basin (1)
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Gulf of Mexico
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Campeche Scarp (1)
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South Atlantic (2)
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Atlantic Ocean Islands
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Atlantic region (1)
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Australasia
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Australia
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Western Australia
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Capricorn Orogen (1)
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bibliography (1)
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biogeography (24)
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biography (2)
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bitumens
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asphalt (1)
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boron
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B-11/B-10 (2)
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brines (1)
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Canada
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Western Canada
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British Columbia (1)
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Manitoba
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Tanco Pegmatite (2)
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carbon
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C-13/C-12 (8)
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C-14 (1)
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organic carbon (2)
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Caribbean region
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West Indies
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Antilles
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catalogs (1)
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Cenozoic
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Quaternary
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Pleistocene
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Tertiary
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Neogene
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Hemphillian (1)
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Honda Group (1)
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Pliocene
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middle Pliocene (1)
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Paleogene
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Eocene
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middle Eocene (2)
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upper Eocene
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Priabonian (1)
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-
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Oligocene
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upper Oligocene (1)
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Paleocene
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lower Paleocene
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Danian (2)
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Sarmiento Formation (2)
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upper Cenozoic (1)
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Central America
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Belize (1)
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Chordata
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Vertebrata
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Ruminantia
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Carnivora
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Felidae
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Edentata
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Rodentia
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Cricetidae (1)
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Reptilia
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Diapsida
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Mesozoic
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Jurassic
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Paganzo Group (2)
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Silurian
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Sierra de Cordoba
Geochronology of igneous rocks in the Sierra Norte de Córdoba (Argentina): Implications for the Pampean evolution at the western Gondwana margin Open Access
Oxidation processes and their effects on the magnetic remanence of Early Cretaceous subaerial basalts from Sierra Chica de Córdoba, Argentina Available to Purchase
Abstract We carried out magnetic analyses on a sequence of Cretaceous alkaline–transitional subaerial basalts of Córdoba Province, Argentina, which have high-Ti magnetite as the main opaque phase. Three different groups are identified based on the degree of high-temperature oxidation during the lava extrusion, combined with superimposed maghemitization and hematization. In the first group, titanomagnetites are optically homogeneous or exhibit coarse intergrowths with ilmenite. The magnetic susceptibility and its variation with temperature and magnetic field point to Ti-poorer compositions than those indicated by electron microprobe, which is interpreted as due to low-temperature oxidation with subsolvus microexsolution. The second group of basalts suffered moderate high-temperature oxidation, with crowded exsolved ilmenite laths within a Ti-poor magnetite ss host, followed by maghemitization and hematite replacement. The third group shows a strongly advanced degree of low-temperature alteration, with the virtual disappearance of magnetite. Based on magnetic properties and field tests applied to the magnetic remanence, we interpret that maghemitization and hematization must have been responsible for the acquisition of a stable magnetic remanence, in the presence of hydrothermal fluids coeval with volcanism. The most advanced degree of alteration, typical of highly porous amygdaloidal lava flows and volcanic breccias, occurred later, probably due to weathering.
Simplified geologic map of Sierra Norte and the northern Sierras de Córdoba... Available to Purchase
Geological map of the Sierras de Córdoba and location of the ecandrewsite-b... Available to Purchase
Geological map of the Sierras de Córdoba, showing the traces of the main br... Available to Purchase
Main traces of thrust faults recognized in the Sierras de Córdoba highlight... Available to Purchase
Ecandrewsite (ZnTiO 3 ) in Amphibolites, Sierras de Córdoba, Argentina: Mineral Chemistry and Comparison with Different Worldwide Paragenetic Occurrences Available to Purchase
Reactivation, inversion and basement faulting and thrusting in the Sierras Pampeanas of Córdoba (Argentina) during Andean flat-slab deformation Available to Purchase
Precambrian-Cambrian boundary and correlation from southwestern and central part of Spain Free
Timing and Duration of the Calc-Alkaline Arc of the Pampean Orogeny: Implications for the Late Neoproterozoic to Cambrian Evolution of Western Gondwana Available to Purchase
Geochemical evolution of granites from the Achala batholith of the Sierras Pampeanas, Argentina Available to Purchase
The Achala batholith is a post-orogenic intrusion of probable Silurian age exposed in the Sierra de Cordoba in the eastern Sierras Pampeanas of central Argentina (31°6′S to 32°2′S; 64°29′W to 65°7′W). The batholith was emplaced into late Precambrian amphibolite- and granulite-facies metamorphic rocks. Five comagmatic granitoid facies, all monzogranite in composition, have been recognized. Geochemical data suggest these granitoids formed by a magmatic differentiation process that began with porphyritic and fine-grained facies B, C, and D, and ended with leucogranite facies A. Biotite-apatite enclaves that are interpreted as cumulates and tonalitic nodules occur in facies B. Less abundant rock types are quartz-muscovite greisens, feldspathic episyenites, pegmatites, and aplites. The granitoids have S-type chemical affinities and are consistent with a within-plate granite tectonic setting.
X-ray measurements on brackebuschite and hematolite Available to Purchase
Sketch of the Tertiary tectonic structure (block uplift) of the Sierras de ... Available to Purchase
Geological map of the central parts of the Sierra Norte de Córdoba (modifie... Open Access
Generalized geologic map of the Eastern Sierras Pampeanas (after Simpson et... Available to Purchase
Geotectonic provinces of South America (modified from Cordani et al . 200... Available to Purchase
(a) Schematic geological map of the Sierras Pampeanas and the Precordillera... Available to Purchase
Sequential ductile to brittle reactivation of major fault zones along the accretionary margin of Gondwana in Central Argentina Available to Purchase
Abstract Metamorphic and plutonic basement rocks and cover sequences of the Eastern Sierras Pampeanas, Argentina, have undergone multiple episodes of fault reactivation. Faults take advantage of mid- to late Cambrian, NW-SE-striking, steeply east-dipping foliations in Vendian-aged accretionary prism metasedimentary rocks. Foliations in peraluminous schists, paragneisses and migmatites are deflected into late Cambrian amphibolite-grade high-strain zones. Greenschist-grade mylonite zones and thick retrogressed ultramylonite zones with mainly NNW strikes, easterly dips, and east-over-west movement, affect the metasedimentary rocks and Ordovician-aged intrusive rocks and are presumably related to early Devonian accretion of terranes to the west of Gondwana. pseudotachylyte veins occur in nearly all mylonite zones. Brittle deformation during Carboniferous to Triassic time produced major pull-apart basins located above terrane boundaries. Outcrop patterns of Triassic to Cretaceous sedimentary rocks are consistent with transtensional pull-apart basins followed by Andean transpressional deformation. The theoretical basis for fault reactivation and production of ‘short cuts’ is examined in the context of Tertiary to Recent basin inversion faults. The inversion faults follow the Palaeozoic trends and produce the present-day NNW-oriented, deep sedimentary basins and intervening ranges of basement rocks.