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Format
Article Type
Journal
Publisher
Section
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
-
Africa
-
Central Africa
-
Central African Republic (1)
-
Congo Democratic Republic (1)
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Gabon (1)
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Congo Craton (1)
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East Africa
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Ethiopia (1)
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Kenya (1)
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Malawi (1)
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Mozambique (1)
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Sudan (1)
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Tanzania (1)
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Uganda (1)
-
-
Limpopo Belt (3)
-
North Africa
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Algeria
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Ahaggar (1)
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Gour Oumelalen (1)
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-
-
Sahara (1)
-
Southern Africa
-
Botswana (1)
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Kaapvaal Craton (1)
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Namaqualand (1)
-
Namaqualand metamorphic complex (2)
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Namibia (3)
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Orange River (1)
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South Africa
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KwaZulu-Natal South Africa (1)
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Northern Cape Province South Africa (1)
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Zimbabwe (1)
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West Africa
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Benin (1)
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Cameroon (2)
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Ghana (1)
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Ivory Coast (2)
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Nigeria (4)
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Sierra Leone (1)
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Togo (1)
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Zimbabwe Craton (2)
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Antarctica
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East Antarctica (4)
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Queen Maud Land
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Schirmacher Hills (1)
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Arctic region
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Greenland (1)
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Asia
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Amur Russian Federation (1)
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Dzhugdzhur region (1)
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Far East
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Burma (1)
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China
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Hebei China (1)
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North China Platform (2)
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South China Block (1)
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Vietnam (1)
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Indian Peninsula
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India
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Andhra Pradesh India
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Cuddapah Basin (1)
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Guntur India (1)
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Khammam India (1)
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Kondapalli India (1)
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Srikakulam India (2)
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Visakhapatnam India (8)
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Bihar India (1)
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Cauvery Basin (1)
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Deccan Plateau (1)
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Dharwar Craton (3)
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Ghats
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Eastern Ghats (20)
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Western Ghats (2)
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Karnataka India
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Chitradurga India (1)
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Closepet Granite (2)
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Kanara (2)
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Mysore India (3)
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Kerala India
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Trivandrum India (1)
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Maharashtra India
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Mumbai India (1)
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Orissa India (2)
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Rajasthan India
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Ajmer India (1)
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Aravalli Range (1)
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Southern Granulite Terrain (10)
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Tamil Nadu India
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Chennai India (4)
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Kodaikanal India (1)
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-
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Indian Shield (2)
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Irkutsk Russian Federation (2)
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Siberian Platform (1)
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Sri Lanka (2)
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Stanovoy Range (1)
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Atlantic Ocean
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North Atlantic (1)
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Atlantic Ocean Islands
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Shetland Islands (1)
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Australasia
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Australia
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Western Australia (1)
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Canada
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Eastern Canada
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Newfoundland and Labrador
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Labrador
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Nain Massif (1)
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Voisey's Bay Deposit (1)
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Newfoundland (1)
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Ontario
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Muskoka District Ontario (1)
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Quebec
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Charlevoix (1)
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Lac-Saint-Jean-Est County Quebec (1)
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Lac-Saint-Jean-Ouest County Quebec (1)
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Morin Complex (2)
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Saguenay County Quebec (1)
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Ungava (1)
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Western Canada
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Saskatchewan (1)
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Commonwealth of Independent States
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Russian Federation
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Amur Russian Federation (1)
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Dzhugdzhur region (1)
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Irkutsk Russian Federation (2)
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Karelia Russian Federation (1)
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Murmansk Russian Federation
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Kola Peninsula (1)
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Siberian Platform (1)
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Stanovoy Range (1)
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Europe
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Alps
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Central Alps (1)
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Fennoscandia (1)
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Fennoscandian Shield (2)
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Karelia Russian Federation (1)
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Murmansk Russian Federation
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Kola Peninsula (1)
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Pyrenees (2)
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Southern Europe
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Iberian Peninsula
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Spain (2)
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Spanish Central System (1)
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Western Europe
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France
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Ariege France (1)
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Armorican Massif (1)
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Central Massif (1)
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Pyrenees-Orientales France
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Agly Massif (1)
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-
-
Scandinavia
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Finland (2)
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Norway
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Rogaland Norway (1)
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Telemark Norway
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Bamble Norway (1)
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-
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Sweden (1)
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United Kingdom
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Great Britain
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Scotland
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Shetland Islands (1)
-
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-
-
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Krishna-Godavari Basin (1)
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Marcy Massif (4)
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Mexico
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Guanajuato Mexico (1)
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Michoacan-Guanajuato volcanic field (1)
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Sierra Madre Occidental (1)
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Trans-Mexican volcanic belt (1)
-
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North America
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Canadian Shield
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Churchill Province
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Rae Province (1)
-
-
Grenville Province
-
Central Gneiss Belt (1)
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Central Metasedimentary Belt (1)
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Superior Province (1)
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Keweenawan Rift (1)
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Rocky Mountains
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U. S. Rocky Mountains
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Laramie Mountains (1)
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Russian Platform (1)
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South America
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Brazil
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Aracuai Belt (1)
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Minas Gerais Brazil (1)
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Venezuela (1)
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-
United States
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Alabama (1)
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Delaware
-
New Castle County Delaware (1)
-
-
Georgia (1)
-
Idaho
-
Snake River plain (1)
-
-
Minnesota
-
Duluth Complex (1)
-
-
Nevada
-
Clark County Nevada (1)
-
-
New York
-
Adirondack Mountains (11)
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Essex County New York (2)
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Hamilton County New York (1)
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Warren County New York (1)
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-
U. S. Rocky Mountains
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Laramie Mountains (1)
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Wyoming (1)
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-
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commodities
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aggregate (1)
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bauxite deposits (1)
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construction materials (1)
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diamond deposits (1)
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gems (1)
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industrial minerals (1)
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kaolin deposits (1)
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metal ores
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aluminum ores (1)
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chromite ores (1)
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copper ores (2)
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iron ores (1)
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nickel ores (1)
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platinum ores (1)
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rare earth deposits (2)
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silver ores (1)
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thorium ores (1)
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titanium ores (1)
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zinc ores (1)
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mineral deposits, genesis (4)
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mineral exploration (1)
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monazite deposits (1)
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oil and gas fields (1)
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petroleum (1)
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phosphate deposits (1)
-
placers
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beach placers (1)
-
-
ruby (2)
-
water resources (1)
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (2)
-
-
chemical ratios (1)
-
halogens
-
chlorine (1)
-
fluorine (1)
-
-
isotope ratios (14)
-
isotopes
-
radioactive isotopes
-
Pb-206/Pb-204 (1)
-
Rb-87/Sr-86 (1)
-
Sm-147/Nd-144 (1)
-
-
stable isotopes
-
C-13/C-12 (2)
-
Hf-177/Hf-176 (3)
-
Nd-144/Nd-143 (10)
-
O-18 (1)
-
O-18/O-16 (1)
-
Pb-206/Pb-204 (1)
-
Pb-207/Pb-206 (2)
-
Pb-208 (1)
-
Rb-87/Sr-86 (1)
-
Sm-147/Nd-144 (1)
-
Sr-87/Sr-86 (6)
-
-
-
large-ion lithophile elements (1)
-
Lu/Hf (4)
-
metals
-
actinides
-
thorium (1)
-
uranium (1)
-
-
alkali metals
-
rubidium
-
Rb-87/Sr-86 (1)
-
-
-
alkaline earth metals
-
barium (2)
-
calcium (2)
-
magnesium (1)
-
strontium
-
Rb-87/Sr-86 (1)
-
Sr-87/Sr-86 (6)
-
-
-
aluminum (1)
-
hafnium
-
Hf-177/Hf-176 (3)
-
-
iron
-
ferric iron (1)
-
-
lead
-
Pb-206/Pb-204 (1)
-
Pb-207/Pb-206 (2)
-
Pb-208 (1)
-
-
manganese (1)
-
niobium (1)
-
platinum group
-
platinum ores (1)
-
-
rare earths
-
cerium (1)
-
europium (1)
-
neodymium
-
Nd-144/Nd-143 (10)
-
Sm-147/Nd-144 (1)
-
-
samarium
-
Sm-147/Nd-144 (1)
-
-
-
tantalum (1)
-
titanium (1)
-
-
noble gases
-
radon (1)
-
-
oxygen
-
O-18 (1)
-
O-18/O-16 (1)
-
-
silicon (1)
-
-
geochronology methods
-
Ar/Ar (1)
-
K/Ar (1)
-
Lu/Hf (4)
-
Pb/Pb (8)
-
Rb/Sr (14)
-
Sm/Nd (9)
-
Th/U (2)
-
U/Pb (30)
-
U/Th/Pb (2)
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Holocene (1)
-
-
Tertiary
-
Paleogene
-
Eocene (3)
-
-
Warkalli Formation (1)
-
-
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous (1)
-
-
Triassic (1)
-
-
Paleozoic
-
Cambrian (3)
-
Carboniferous
-
Upper Carboniferous (1)
-
-
Devonian
-
Upper Devonian (1)
-
-
lower Paleozoic
-
Wilmington Complex (1)
-
-
Ordovician
-
Upper Ordovician (1)
-
-
Permian (2)
-
-
Phanerozoic (1)
-
Precambrian
-
Adirondack Anorthosite (1)
-
Archean
-
Mesoarchean (4)
-
Napier Complex (1)
-
Neoarchean
-
Dharwar Supergroup (1)
-
-
Paleoarchean (1)
-
Peninsular Gneiss (2)
-
-
Laramie anorthosite complex (1)
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (7)
-
Neoproterozoic
-
Ediacaran (1)
-
-
Paleoproterozoic (8)
-
-
-
-
-
igneous rocks
-
extrusive rocks (1)
-
igneous rocks
-
carbonatites (4)
-
granophyre (1)
-
kimberlite (2)
-
plutonic rocks
-
anorthosite (22)
-
diabase (1)
-
diorites
-
ferrodiorite (1)
-
tonalite
-
enderbite (8)
-
-
trondhjemite (2)
-
-
gabbros
-
norite (5)
-
troctolite (1)
-
-
granites
-
A-type granites (1)
-
biotite granite (2)
-
charnockite (200)
-
I-type granites (2)
-
leucogranite (2)
-
monzogranite
-
farsundite (1)
-
-
rapakivi (3)
-
-
granodiorites
-
granodiorite porphyry (1)
-
-
jotunite (2)
-
lamproite (1)
-
lamprophyres (4)
-
monzodiorite (4)
-
monzonites
-
mangerite (15)
-
-
pegmatite (6)
-
syenites
-
shonkinite (1)
-
-
ultramafics
-
peridotites
-
dunite (1)
-
lherzolite (1)
-
-
pyroxenite
-
clinopyroxenite (1)
-
-
-
-
volcanic rocks
-
adakites (1)
-
basalts
-
alkali basalts
-
hawaiite (1)
-
-
mid-ocean ridge basalts (1)
-
tholeiite (1)
-
-
leucitite (1)
-
melilitite (1)
-
rhyolites (3)
-
-
-
ophiolite (1)
-
-
metamorphic rocks
-
metamorphic rocks
-
amphibolites (5)
-
eclogite (1)
-
gneisses
-
augen gneiss (1)
-
biotite gneiss (1)
-
granite gneiss (2)
-
orthogneiss (6)
-
paragneiss (2)
-
-
granulites
-
leptite (1)
-
-
impactites
-
impact breccia
-
suevite (1)
-
-
-
marbles (1)
-
metaigneous rocks (4)
-
metaplutonic rocks (1)
-
metasedimentary rocks
-
khondalite (17)
-
metagraywacke (1)
-
metapelite (5)
-
paragneiss (2)
-
-
metasomatic rocks
-
fenite (1)
-
-
migmatites (9)
-
mylonites
-
pseudotachylite (1)
-
-
quartzites (3)
-
schists
-
greenstone (1)
-
-
-
ophiolite (1)
-
-
minerals
-
carbonates
-
calcite (1)
-
magnesite (1)
-
-
hydrates (1)
-
minerals (12)
-
oxides
-
aluminum oxides (1)
-
corundum (1)
-
ilmenite (2)
-
iron oxides (1)
-
magnetite (3)
-
sapphire (1)
-
spinel (2)
-
spinel group (1)
-
-
phosphates
-
apatite (2)
-
monazite (5)
-
-
silicates
-
chain silicates
-
aenigmatite group
-
sapphirine (6)
-
-
amphibole group
-
clinoamphibole
-
arfvedsonite (1)
-
hastingsite (1)
-
hornblende (6)
-
pargasite (2)
-
-
orthoamphibole
-
anthophyllite (1)
-
-
-
jade (1)
-
pyroxene group
-
clinopyroxene
-
aegirine (1)
-
-
orthopyroxene
-
hypersthene (2)
-
-
-
wollastonite group
-
wollastonite (2)
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
K-feldspar (5)
-
perthite (2)
-
-
plagioclase
-
albite (1)
-
anorthite (1)
-
-
-
myrmekite (5)
-
nepheline group
-
kalsilite (1)
-
nepheline (1)
-
-
scapolite group
-
scapolite (1)
-
-
silica minerals
-
quartz (8)
-
-
-
orthosilicates
-
nesosilicates
-
garnet group
-
almandine (1)
-
grossular (1)
-
-
larnite (1)
-
olivine group
-
olivine (2)
-
-
sillimanite (4)
-
titanite group
-
titanite (2)
-
-
zircon group
-
zircon (28)
-
-
-
sorosilicates
-
chevkinite group
-
perrierite (1)
-
-
epidote group
-
allanite (1)
-
-
kornerupine (1)
-
melilite group
-
melilite (1)
-
-
-
-
ring silicates
-
cordierite (4)
-
-
sheet silicates
-
clay minerals
-
kaolinite (1)
-
-
mica group
-
biotite (9)
-
phlogopite (1)
-
-
-
-
sulfides
-
chalcopyrite (1)
-
pyrrhotite (2)
-
-
ultrabasite (1)
-
-
Primary terms
-
absolute age (50)
-
Africa
-
Central Africa
-
Central African Republic (1)
-
Congo Democratic Republic (1)
-
Gabon (1)
-
-
Congo Craton (1)
-
East Africa
-
Ethiopia (1)
-
Kenya (1)
-
Malawi (1)
-
Mozambique (1)
-
Sudan (1)
-
Tanzania (1)
-
Uganda (1)
-
-
Limpopo Belt (3)
-
North Africa
-
Algeria
-
Ahaggar (1)
-
Gour Oumelalen (1)
-
-
-
Sahara (1)
-
Southern Africa
-
Botswana (1)
-
Kaapvaal Craton (1)
-
Namaqualand (1)
-
Namaqualand metamorphic complex (2)
-
Namibia (3)
-
Orange River (1)
-
South Africa
-
KwaZulu-Natal South Africa (1)
-
Northern Cape Province South Africa (1)
-
-
Zimbabwe (1)
-
-
West Africa
-
Benin (1)
-
Cameroon (2)
-
Ghana (1)
-
Ivory Coast (2)
-
Nigeria (4)
-
Sierra Leone (1)
-
Togo (1)
-
-
Zimbabwe Craton (2)
-
-
Antarctica
-
East Antarctica (4)
-
Queen Maud Land
-
Schirmacher Hills (1)
-
-
-
Arctic region
-
Greenland (1)
-
-
Asia
-
Amur Russian Federation (1)
-
Dzhugdzhur region (1)
-
Far East
-
Burma (1)
-
China
-
Hebei China (1)
-
North China Platform (2)
-
South China Block (1)
-
-
Vietnam (1)
-
-
Indian Peninsula
-
India
-
Andhra Pradesh India
-
Cuddapah Basin (1)
-
Guntur India (1)
-
Khammam India (1)
-
Kondapalli India (1)
-
Srikakulam India (2)
-
Visakhapatnam India (8)
-
-
Bihar India (1)
-
Cauvery Basin (1)
-
Deccan Plateau (1)
-
Dharwar Craton (3)
-
Ghats
-
Eastern Ghats (20)
-
Western Ghats (2)
-
-
Karnataka India
-
Chitradurga India (1)
-
Closepet Granite (2)
-
Kanara (2)
-
Mysore India (3)
-
-
Kerala India
-
Trivandrum India (1)
-
-
Maharashtra India
-
Mumbai India (1)
-
-
Orissa India (2)
-
Rajasthan India
-
Ajmer India (1)
-
Aravalli Range (1)
-
-
Southern Granulite Terrain (10)
-
Tamil Nadu India
-
Chennai India (4)
-
Kodaikanal India (1)
-
-
-
Indian Shield (2)
-
-
Irkutsk Russian Federation (2)
-
Siberian Platform (1)
-
Sri Lanka (2)
-
Stanovoy Range (1)
-
-
associations (1)
-
Atlantic Ocean
-
North Atlantic (1)
-
-
Atlantic Ocean Islands
-
Shetland Islands (1)
-
-
Australasia
-
Australia
-
Western Australia (1)
-
-
-
bauxite deposits (1)
-
biography (1)
-
Canada
-
Eastern Canada
-
Newfoundland and Labrador
-
Labrador
-
Nain Massif (1)
-
Voisey's Bay Deposit (1)
-
-
Newfoundland (1)
-
-
Ontario
-
Muskoka District Ontario (1)
-
-
Quebec
-
Charlevoix (1)
-
Lac-Saint-Jean-Est County Quebec (1)
-
Lac-Saint-Jean-Ouest County Quebec (1)
-
Morin Complex (2)
-
Saguenay County Quebec (1)
-
-
-
Ungava (1)
-
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
charnockite
Ultrahigh-temperature crustal anatexis and final cratonization in Eastern Hebei, North China Craton: Insights from ca. 2.46 Ga Taipingzhai enderbites Available to Purchase
Pervasive Neoarchean melting of subducted sediments generating sanukitoid and associated magmatism in the North China Craton, with implications for the operation of plate tectonics Available to Purchase
Geochemistry of Stream Sediments from Eastern Ghats Mobile Belt, India: Implications on Sediment Type, Maturity, Source-area Weathering and Provenance Available to Purchase
Tracing the crustal evolution of the Precambrian Southern Granulite terrane in East Gondwana: New insights from zircon U-Pb/Hf geochronology Available to Purchase
Timing of Garnet Growth in Granulites from Southern India: Insights from Zircon-monazite-garnet REE Partition Modeling Available to Purchase
Petrologic constraints on the origin of Proterozoic ferroan granites of the Laurentian margin Available to Purchase
ABSTRACT Ferroan granite is a characteristic rock type of the Laurentian margin. It is commonly associated with anorthosite and related rocks. Ferroan granites are strongly enriched in iron, are alkalic to alkali-calcic, and are generally metaluminous. These geochemical characteristics reflect their tholeiitic parental magma source and relatively reducing and anhydrous conditions of crystallization. Their compositions distinguish them from arc magmas, which are magnesian and calcic to calc-alkalic. Ferroan granite magmas are hot, which promotes partial melting of their crustal wall rocks. Assimilation of these silica-rich and peraluminous melts drives the resulting magmas to higher silica and aluminum saturation values. Where Proterozoic ferroan granites intrude Archean crust, their mantle component is readily identified isotopically, but this is more difficult where they intrude relatively juvenile crust. Ferroan granite forms in tectonic environments that allow partial melts of tholeiitic mantle to pond and differentiate at or near the base of the crust. Phanerozoic examples occur in plume settings, such as the Snake River Plain and Yellowstone, or under certain conditions involving slab rollback, such as those that formed the Cenozoic topaz rhyolites of the western United States or ferroan rhyolites of the Sierra Madre Occidental. It is possible that the long-lived supercontinent Nuna-Rodinia, of which Laurentia was a part, formed an insulating lid that raised underlying mantle temperatures and created a unique environment that enabled emplacement of large volumes of mafic melt at the base of the crust. Ascent of felsic differentiates accompanied by variable crustal assimilation may have created large volumes of Proterozoic ferroan granite and related rocks.
Geon 14 to early Geon 13 granitoid magmatism in the Grenville Province of Canada, northeastern Laurentia: Distribution, geochemical patterns, and links with an active-margin setting Available to Purchase
ABSTRACT Mesoproterozoic crust is widely exposed in the Grenville Province portion of northeastern Laurentia, where it is interpreted as an assemblage of two continental-arc segments separated by a composite arc belt (Quebecia) with island-arc remnants. A synthesis of the geologic context, types, and geochemical patterns of 1.5–1.35 Ga granitoids reveals a regional distribution in each segment, with dioritic to granitic plutonism variably associated with arc-related volcano-sedimentary belts in the south and inboard monzonitic to granitic plutonism in the north. In addition, belts of dioritic to granitic orthogneisses occupy intermediate positions in Quebecia and in the west. The inboard granites are consistently old in all segments (1.5–1.45 Ga), but the preserved volcano-sedimentary belts are older in the east and in Quebecia (1.5–1.45 Ga) and younger in the west (1.39? and 1.36 Ga), while the belts of orthogneisses show a large spread of ages at 1.45–1.37 Ga. Granitoids in the volcano-sedimentary belts and the orthogneisses include magnesian, calcic to calc-alkalic components to ferroan, alkali-calcic components. In contrast, the inboard plutons are dominantly ferroan and alkali-calcic to alkalic in the continental-arc segments, where they are locally associated with anorthosite-mangerite-charnockite-granite (AMCG) suites. Collectively, the different types of granitoid magmatism can be linked to an active margin, with subduction under northeastern Laurentia, involving arc building, arc rifting, back-arc opening and inboard extension, and amalgamation processes variably operating at different parts of the margin and at different times. In addition, the data provide a basis for comparison with other parts of the eastern to southwestern Laurentian margin in the 1.5–1.35 Ga time frame.