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Format
Article Type
Journal
Publisher
Section
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
-
East Africa
-
Ethiopia
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Fantale (1)
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West Africa
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Nigeria (1)
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-
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Arctic region
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Greenland (2)
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Asia
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Indian Peninsula
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India
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Andhra Pradesh India
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Hyderabad India (1)
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Bihar India (2)
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Godavari Valley (1)
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Jharkhand India
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Hazaribagh India (1)
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Karnataka India
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Mysore India (1)
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Maharashtra India (1)
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Uttar Pradesh India (1)
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Uttarakhand India (1)
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-
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Atlantic Ocean
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North Atlantic
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Gulf of Mexico (1)
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Australasia
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Australia
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Western Australia (1)
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New Zealand (1)
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Avalon Zone (2)
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Black Hills (1)
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Black Mountain (1)
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Canada
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Eastern Canada
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Maritime Provinces
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New Brunswick (2)
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Newfoundland and Labrador
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Newfoundland (1)
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Ontario
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Sudbury igneous complex (1)
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Quebec (2)
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Western Canada
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Alberta (1)
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British Columbia (4)
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Manitoba (1)
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Northwest Territories
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Yellowknife Northwest Territories (1)
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Cascade Range (2)
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Central America
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Guatemala (1)
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Panama (1)
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Chocolate Mountains (1)
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Cross Lake (1)
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Diablo Platform (1)
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East Pacific Ocean Islands
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Hawaii
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Maui County Hawaii
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Maui (1)
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Europe
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France
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Ireland (1)
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United Kingdom
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Great Britain
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England
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Cornwall England (1)
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Scotland
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Highland region Scotland
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Front Range (1)
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Green Lake (1)
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James River (1)
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Mediterranean Sea
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North America
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Appalachians
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Northern Appalachians (2)
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Canadian Shield
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Grenville Province (1)
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Superior Province
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Quetico Belt (1)
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Wabigoon Belt (1)
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Great Lakes region (1)
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Rocky Mountains
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U. S. Rocky Mountains
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Tobacco Root Mountains (1)
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Uinta Mountains (2)
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Wasatch Range (1)
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Oceania
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Melanesia
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Vanuatu (1)
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Polynesia
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Hawaii
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Maui County Hawaii
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Maui (1)
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Pacific Ocean
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East Pacific (1)
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Equatorial Pacific (1)
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North Pacific
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Northwest Pacific
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Japan Sea
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Yamato Basin (1)
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West Pacific
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Northwest Pacific
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Japan Sea
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Platte River (1)
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South America
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Andes (1)
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Brazil
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Peru (1)
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United States
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Alabama (1)
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Arizona
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Gila County Arizona (1)
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Arkansas (2)
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Arkansas River (1)
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California
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Inyo County California
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Panamint Range (1)
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San Luis Obispo County California (1)
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Canadian River (1)
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Colorado
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Boulder County Colorado (1)
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Chaffee County Colorado (1)
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Idaho (2)
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Maine (2)
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Michigan (2)
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Minnesota (3)
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Missouri
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Saint Francois County Missouri (1)
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Montana
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Madison County Montana
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Tobacco Root Mountains (1)
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Nebraska (1)
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Nevada (2)
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New Hampshire
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Carroll County New Hampshire (1)
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New Jersey (1)
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New Mexico
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Otero County New Mexico (1)
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Valencia County New Mexico (1)
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New York
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Adirondack Mountains (2)
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Essex County New York (1)
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Franklin County New York (1)
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Hamilton County New York (1)
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Saint Lawrence County New York (1)
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Westchester County New York (1)
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North Carolina (1)
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Ohio
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Scioto County Ohio (1)
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Oklahoma (2)
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Ouachita Mountains (1)
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Pennsylvania (2)
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Rhode Island (2)
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South Dakota (2)
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Texas
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Hudspeth County Texas (1)
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Taylor County Texas (1)
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Trans-Pecos (1)
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U. S. Rocky Mountains
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Tobacco Root Mountains (1)
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Uinta Mountains (2)
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Utah
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Salt Lake County Utah (1)
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Summit County Utah (1)
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Vermont (1)
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Washington
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Golden Horn Batholith (1)
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West Virginia
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Marshall County West Virginia (1)
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Mason County West Virginia (1)
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Wayne County West Virginia (1)
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Wood County West Virginia (1)
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Wisconsin (3)
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Wyoming (3)
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Yellowstone National Park (2)
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White Mountains (1)
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White River (1)
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commodities
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metal ores
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base metals (1)
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bismuth ores (1)
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copper ores (1)
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lead ores (1)
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molybdenum ores (1)
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polymetallic ores (2)
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tungsten ores (1)
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mineral deposits, genesis (16)
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mineral exploration (1)
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mineral resources (1)
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placers (1)
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potash (8)
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elements, isotopes
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hydrogen
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D/H (1)
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deuterium (1)
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isotope ratios (1)
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isotopes
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radioactive isotopes
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Pb-204 (1)
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stable isotopes
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D/H (1)
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deuterium (1)
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O-18/O-16 (1)
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Sr-87/Sr-86 (1)
-
-
-
metals
-
actinides
-
uranium (2)
-
-
alkali metals
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potassium (2)
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rubidium (1)
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sodium (1)
-
-
alkaline earth metals
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barium (2)
-
calcium (1)
-
strontium
-
Sr-87/Sr-86 (1)
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-
-
aluminum (1)
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copper (1)
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gold (5)
-
iron (2)
-
lead
-
Pb-204 (1)
-
-
rare earths (1)
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silver (1)
-
titanium (1)
-
-
oxygen
-
O-18/O-16 (1)
-
-
-
fossils (1)
-
geochronology methods
-
Ar/Ar (1)
-
K/Ar (3)
-
paleomagnetism (1)
-
Pb/Pb (1)
-
Rb/Sr (4)
-
thermoluminescence (2)
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Holocene (2)
-
Pleistocene
-
Champlain Sea (1)
-
-
-
Tertiary
-
Neogene
-
Miocene
-
Temblor Formation (1)
-
-
Pliocene (1)
-
-
Paleogene
-
Oligocene (1)
-
-
-
-
Coal Measures (1)
-
Mesozoic
-
Cretaceous (3)
-
Jurassic (2)
-
Navajo Sandstone (1)
-
Triassic (1)
-
-
Paleozoic
-
Berea Sandstone (1)
-
Cambrian
-
Upper Cambrian
-
Eau Claire Formation (1)
-
Mount Simon Sandstone (1)
-
Wonewoc Formation (1)
-
-
-
Carboniferous
-
Mississippian (1)
-
Pennsylvanian
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Middle Pennsylvanian (1)
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Strawn Series (1)
-
Upper Pennsylvanian (1)
-
-
Upper Carboniferous (1)
-
-
Devonian (1)
-
lower Paleozoic
-
Rose Run Sandstone (2)
-
-
Ordovician
-
Middle Ordovician
-
Saint Peter Sandstone (1)
-
-
-
Permian
-
Lower Permian (1)
-
-
upper Paleozoic (1)
-
Weber Sandstone (1)
-
-
Phanerozoic (1)
-
Precambrian
-
Archean (3)
-
Uinta Mountain Group (1)
-
upper Precambrian
-
Proterozoic
-
Huronian (1)
-
Mesoproterozoic (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
hypabyssal rocks (1)
-
plutonic rocks
-
diabase (1)
-
diorites
-
tonalite (1)
-
-
gabbros
-
norite (1)
-
-
granites
-
adamellite (1)
-
alaskite (1)
-
aplite (1)
-
biotite granite (1)
-
rapakivi (2)
-
-
granodiorites (4)
-
lamprophyres (1)
-
monzonites (5)
-
pegmatite (7)
-
syenites
-
quartz syenite (1)
-
-
ultramafics
-
peridotites
-
dunite (1)
-
-
-
-
porphyry (3)
-
volcanic rocks
-
andesites (1)
-
basalts
-
alkali basalts
-
alkali olivine basalt (1)
-
-
-
glasses
-
obsidian (2)
-
-
pyroclastics
-
tuff (4)
-
-
quartz latite (1)
-
rhyolites
-
pantellerite (1)
-
-
trachytes (2)
-
-
-
volcanic ash (1)
-
-
metamorphic rocks
-
metamorphic rocks
-
gneisses
-
granite gneiss (4)
-
-
metaigneous rocks
-
metabasalt (1)
-
-
metasedimentary rocks
-
metaconglomerate (1)
-
metasandstone (1)
-
-
metasomatic rocks
-
greisen (2)
-
-
schists (4)
-
slates (1)
-
-
turbidite (1)
-
-
minerals
-
carbonates
-
ankerite (1)
-
calcite (2)
-
dolomite (1)
-
-
halides
-
fluorides
-
fluorite (2)
-
topaz (1)
-
-
-
minerals (46)
-
native elements (1)
-
oxides
-
armalcolite (1)
-
baddeleyite (1)
-
cassiterite (1)
-
gibbsite (1)
-
ilmenite (2)
-
magnetite (2)
-
pitchblende (1)
-
spinel (1)
-
-
phosphates
-
apatite (4)
-
-
silicates
-
chain silicates
-
aenigmatite group
-
aenigmatite (1)
-
-
amphibole group
-
clinoamphibole
-
arfvedsonite (1)
-
hornblende (6)
-
richterite (1)
-
-
-
pyroxene group
-
clinopyroxene
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augite (1)
-
diopside (1)
-
spodumene (1)
-
-
orthopyroxene
-
hypersthene (1)
-
-
-
wollastonite group
-
wollastonite (1)
-
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
adularia (3)
-
anorthoclase (3)
-
K-feldspar (8)
-
microcline (11)
-
orthoclase (8)
-
perthite (4)
-
sanidine (3)
-
-
antiperthite (1)
-
barium feldspar (2)
-
plagioclase
-
albite (11)
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anorthite (1)
-
oligoclase (1)
-
-
-
leucite (1)
-
myrmekite (1)
-
nepheline group
-
nepheline (3)
-
-
silica minerals
-
quartz (33)
-
-
sodalite group
-
sodalite (1)
-
-
zeolite group
-
analcime (3)
-
heulandite (1)
-
laumontite (1)
-
-
-
orthosilicates
-
nesosilicates
-
andalusite (1)
-
garnet group (2)
-
olivine group
-
monticellite (1)
-
olivine (9)
-
-
staurolite (1)
-
topaz (1)
-
zircon group
-
zircon (3)
-
-
-
sorosilicates
-
epidote group
-
epidote (1)
-
-
-
-
ring silicates
-
cordierite (1)
-
tourmaline group (1)
-
-
sheet silicates
-
chlorite group
-
chlorite (3)
-
-
clay minerals
-
dickite (1)
-
halloysite (3)
-
kaolinite (9)
-
montmorillonite (1)
-
smectite (1)
-
-
illite (3)
-
mica group
-
biotite (8)
-
glauconite (1)
-
muscovite (3)
-
-
rectorite (1)
-
serpentine group
-
serpentine (1)
-
-
-
-
sulfates
-
anhydrite (1)
-
-
sulfides
-
galena (1)
-
pyrite (2)
-
troilite (1)
-
-
-
Primary terms
-
absolute age (8)
-
Africa
-
East Africa
-
Ethiopia
-
Fantale (1)
-
-
-
West Africa
-
Nigeria (1)
-
-
-
Arctic region
-
Greenland (2)
-
-
Asia
-
Indian Peninsula
-
India
-
Andhra Pradesh India
-
Hyderabad India (1)
-
-
Bihar India (2)
-
Godavari Valley (1)
-
Jharkhand India
-
Hazaribagh India (1)
-
-
Karnataka India
-
Mysore India (1)
-
-
Maharashtra India (1)
-
Uttar Pradesh India (1)
-
Uttarakhand India (1)
-
-
-
-
Atlantic Ocean
-
North Atlantic
-
Gulf of Mexico (1)
-
-
-
Australasia
-
Australia
-
Western Australia (1)
-
-
New Zealand (1)
-
-
bibliography (4)
-
Canada
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick (2)
-
-
Newfoundland and Labrador
-
Newfoundland (1)
-
-
Ontario
-
Sudbury igneous complex (1)
-
-
Quebec (2)
-
-
Western Canada
-
Alberta (1)
-
British Columbia (4)
-
Manitoba (1)
-
Northwest Territories
-
Yellowknife Northwest Territories (1)
-
-
-
-
catalogs (1)
-
Cenozoic
-
Quaternary
-
Holocene (2)
-
Pleistocene
-
Champlain Sea (1)
-
-
-
Tertiary
-
Neogene
-
Miocene
-
Temblor Formation (1)
-
-
Pliocene (1)
-
-
Paleogene
-
Oligocene (1)
-
-
-
-
Central America
-
Guatemala (1)
-
Panama (1)
-
-
chemical analysis (6)
-
clay mineralogy (7)
-
crust (1)
-
crystal chemistry (8)
-
crystal growth (9)
-
crystal structure (18)
-
crystallography (14)
-
data processing (2)
-
Deep Sea Drilling Project
-
Leg 31
-
DSDP Site 299 (1)
-
DSDP Site 301 (1)
-
-
-
deformation (6)
-
diagenesis (14)
-
East Pacific Ocean Islands
-
Hawaii
-
Maui County Hawaii
-
Maui (1)
-
-
-
-
economic geology (16)
-
electron microscopy (1)
-
Europe
-
Western Europe
-
France
-
Paris Basin (1)
-
-
Ireland (1)
-
United Kingdom
-
Great Britain
-
England
-
Cornwall England (1)
-
-
Scotland
-
Highland region Scotland
-
Sutherland Scotland
-
Scourie Scotland (1)
-
-
-
-
-
-
-
-
faults (3)
-
folds (6)
-
fractures (2)
-
geochemistry (24)
-
geochronology (5)
-
hydrogen
-
D/H (1)
-
deuterium (1)
-
-
igneous rocks
-
hypabyssal rocks (1)
-
plutonic rocks
-
diabase (1)
-
diorites
-
tonalite (1)
-
-
gabbros
-
norite (1)
-
-
granites
-
adamellite (1)
-
alaskite (1)
-
aplite (1)
-
biotite granite (1)
-
rapakivi (2)
-
-
granodiorites (4)
-
lamprophyres (1)
-
monzonites (5)
-
pegmatite (7)
-
syenites
-
quartz syenite (1)
-
-
ultramafics
-
peridotites
-
dunite (1)
-
-
-
-
porphyry (3)
-
volcanic rocks
-
andesites (1)
-
basalts
-
alkali basalts
-
alkali olivine basalt (1)
-
-
-
glasses
-
obsidian (2)
-
-
pyroclastics
-
tuff (4)
-
-
quartz latite (1)
-
rhyolites
-
pantellerite (1)
-
-
trachytes (2)
-
-
-
inclusions (2)
-
intrusions (25)
-
isotopes
-
radioactive isotopes
-
Pb-204 (1)
-
-
stable isotopes
-
D/H (1)
-
deuterium (1)
-
O-18/O-16 (1)
-
Sr-87/Sr-86 (1)
-
-
-
lava (6)
-
magmas (26)
-
mantle (1)
-
maps (9)
-
Mediterranean Sea
-
West Mediterranean (1)
-
-
Mesozoic
-
Cretaceous (3)
-
Jurassic (2)
-
Navajo Sandstone (1)
-
Triassic (1)
-
-
metal ores
-
base metals (1)
-
bismuth ores (1)
-
copper ores (1)
-
lead ores (1)
-
molybdenum ores (1)
-
polymetallic ores (2)
-
tungsten ores (1)
-
-
metals
-
actinides
-
uranium (2)
-
-
alkali metals
-
potassium (2)
-
rubidium (1)
-
sodium (1)
-
-
alkaline earth metals
-
barium (2)
-
calcium (1)
-
strontium
-
Sr-87/Sr-86 (1)
-
-
-
aluminum (1)
-
copper (1)
-
gold (5)
-
iron (2)
-
lead
-
Pb-204 (1)
-
-
rare earths (1)
-
silver (1)
-
titanium (1)
-
-
metamorphic rocks
-
gneisses
-
granite gneiss (4)
-
-
metaigneous rocks
-
metabasalt (1)
-
-
metasedimentary rocks
-
metaconglomerate (1)
-
metasandstone (1)
-
-
metasomatic rocks
-
greisen (2)
-
-
schists (4)
-
slates (1)
-
-
metamorphism (20)
-
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1-20 OF 216 RESULTS FOR
feldspar
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Journal Article
Selected area electron diffraction (SAED) and convergent beam electron diffraction (CBED)
Publisher: Mineralogical Society of America
Published: 01 January 1992
Reviews in Mineralogy and Geochemistry (1992) 27 (1): 37–84.
Journal Article
Feldspar Diagenesis in Neogene Sediments, Northern Gulf of Mexico: ABSTRACT
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 February 1985
AAPG Bulletin (1985) 69 (2): 288.
...K. L. Milliken; P. B. Gold; L. S. Land ABSTRACT Alteration of feldspars in the youngest of the Gulf Coast Cenozoic sands and sandstones is dominated by dissolution and albitization. Volumetrically significant amounts of alteration are only observed below burial depths of about 4.5 km in sands...
Journal Article
Strain partitioning and magnetic fabrics in particulate flow
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 01 June 1984
Canadian Journal of Earth Sciences (1984) 21 (6): 694–697.
...Graham J. Borradaile; Don Tarling Abstract Strongly deformed Archean sandstones and conglomerates in northwestern Ontario show extreme heterogeneity of strain, with pebbles deformed more than feldspar grains, which are more deformed than quartz grains. Despite the heterogeneous changes of shape...
Journal Article
Sedimentary features of the Nunarssuit and Klokken syenites, S Greenland
Journal: Journal of the Geological Society
Publisher: Geological Society of London
Published: 01 June 1981
Journal of the Geological Society (1981) 138 (3): 289–305.
... the presence of >3 m of crystal mush. The Klokken Laminated Syenites are slightly more fractionated than Nunarssuit and approach the water-rich termination of fractionation of olivine, clinopyroxene and ternary feldspar. Cumulus phases in Nunarssuit layers are chemically less fractionated than those...
Journal Article
The transformation of feldspars and muscovite to clay minerals in (Ca,Mg)-carbonate bearing hydrothermal media
Journal: Clay Minerals
Published: 01 September 1980
Clay Minerals (1980) 15 (3): 263–274.
Journal Article
The timing of early and main stage ore mineralization in Southwest Cornwall
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 August 1980
Economic Geology (1980) 75 (5): 752–759.
...A. N. Halliday Abstract The exact timing of main stage mineralization in southwest England has never been certain. K-Ar ages for micas and feldspars from a metallized pegmatite are discordant but suggest formation at about 285 m.y. The K-Ar ages of micas from greisens are also discordant...
Journal Article
Precambrian(?) Crystallization and Permian(?) Metamorphism of Hypersolvus Granite in the Avalonian Terrane of Rhode Island
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 01 July 1980
GSA Bulletin (1980) 91 (7_Part_II): 1669–1741.
... and deformation has caused complete recrystallization of the feldspars in parts of the granite. Some of this metamorphism occurred during Permian time, but the effects of earlier episodes cannot be evaluated. Geologic Setting We have studied the Scituate Granite Gneiss (SGG), Hope Valley Alaskite Gneiss (HVA...
Journal Article
Precambrian (?) crystallization and Permian (?) metamorphism of hypersolvus granite in the Avalonian terrane of Rhode Island: Summary
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 01 July 1980
GSA Bulletin (1980) 91 (7): 389–391.
Journal Article
The crystal structure of a ternary (Ba,K,Na)-feldspar and its significance
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 June 1980
American Mineralogist (1980) 65 (5-6): 472–476.
...K. Viswanathan; K. Brandt Abstract The crystal structure of a monoclinic ternary barium feldspar with the formula ( Ba 0.19 K 0.59 Na 0.22 ) ( Si 2.82 Al 1.13 Fe 0.05 3 + ) O 8 [ a = 8.516 ( 1 ) , b = 13.023 ( 2 ) , c = 7.206 ( 1 ) Å , β = 115.90 ( 5 ) ∘ ] , space group C 2/ m has been refined to R...
Journal Article
High resolution electron microscopy of feldspar weathering
Journal: Clays and Clay Minerals
Publisher: Clay Minerals Society
Published: 01 June 1980
Clays and Clay Minerals (1980) 28 (3): 173–178.
Journal Article
Trace Fossils From Proterozoic Sediments of Godavari Valley, South India
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 May 1980
AAPG Bulletin (1980) 64 (5): 691.
Journal Article
Indigenous source of late-stage dikes and veins in granitic plutons
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 May 1980
Economic Geology (1980) 75 (3): 410–423.
... as: main magmatic, late magmatic, early post-magmatic, and late post-magmatic. Main magmatic stage microveins contain minerals in equilibrium with fractionated intergranular melt existing at this stage of release from the crystal-melt parent system. The assemblage typically will be quartz, K-feldspar...
Journal Article
Update on feldspar and oxide thermometry in the Adirondack Mountains, New York
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 01 February 1980
GSA Bulletin (1980) 91 (2): 110–113.
...STEVEN R. BOHLEN; ERIC J. ESSENE; KAREN S. HOFFMAN Abstract Recently obtained feldspar and oxide temperature data for orthogneiss and paragneiss in the Adirondack Mountains, New York, further constrain and generally support the regional thermometry previously established. Peak metamorphic...
Journal Article
High-temperature alkali feldspars; a compositional gap
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 February 1980
The Canadian Mineralogist (1980) 18 (1): 71–72.
Journal Article
Scanning electron microscope morphology of deeply weathered granite
Journal: Clays and Clay Minerals
Publisher: Clay Minerals Society
Published: 01 February 1980
Clays and Clay Minerals (1980) 28 (1): 29–34.
Journal Article
The Gariadih Rapakivi Granite of the Bihar Mica Belt Hazaribagh District, Bihar
Publisher: Geological Society of India
Published: 01 January 1980
Jour. Geol. Soc. India (1980) 21 (1): 21–29.
... planes, defined by K-feldspar ovoids and coarse grains of biotite, hornblende and opaques trend N350° to N 10° and dip 55° to 88° towards NE. The planar structures, parallel to sub-parallel to the margin of the granite body have variable attitudes and wrap around the feldspar ovoids. unPoles...
Journal Article
40 Ar– 39 Ar dating of multicomponent magnetizations in the Archean Shelley Lake granite, northwestern Ontario
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 01 October 1979
Canadian Journal of Earth Sciences (1979) 16 (10): 1933–1941.
... antipole represents a late Proterozoic remagnetization. We chose biotite and K-feldspars from the available cores — biotite to record high temperature events and K-feldspars to detect any weak late Proterozoic reheating event. The biotite 40 Ar/ 39 Ar age spectrum is flat for 80% of the released Ar...
Journal Article
Whence orthoclase and microcline? A crystallographer's interpretation of potassium feldspar phase relations
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 August 1979
The Canadian Mineralogist (1979) 17 (3): 515–525.
Journal Article
Weathering products within microcracks in feldspars
Journal: Geology
Publisher: Geological Society of America
Published: 01 June 1979
Geology (1979) 7 (6): 278–280.
...George P. Rodgers; Heinrich D. Holland Abstract Tonalite cobbles from moraines in the Tobacco Root Mountains, Montana, have weathering rinds in which the feldspars are altered to clays along microcracks. Energy-dispersive X-ray and X-ray diffraction analyses have shown that microcracks...
Journal Article
Mantled feldspars and synneusis
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 June 1979
American Mineralogist (1979) 64 (5-6): 514–518.
...R. J. Stull Abstract Synneusis, the drifting together and systematic attachment of crystals in a melt, is involved in three of the known origins for mantled feldspars: (1) overgrowth, (2) exsolution, and (3) filling of skeletal plagioclase. Quartz latite dikes of the Chocolate Mountains, California...
1
GeoRef Thesaurus
feldspar
Scope Notes: As of 1981, no longer a valid term for GeoRef. See feldspar group. Use feldspar deposits for feldspar as a commodity.