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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
East Africa
-
Mozambique (1)
-
Tanzania (1)
-
-
Mozambique Belt (1)
-
Southern Africa
-
Barberton greenstone belt (1)
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South Africa
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Bushveld Complex (1)
-
-
-
-
Arctic region
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Greenland
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East Greenland (1)
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Kangerlussuaq (1)
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Skaergaard Intrusion (1)
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-
Asia
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Far East
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China
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Fujian China (1)
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Inner Mongolia China
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Bayan Obo China (1)
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North China Platform (1)
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Japan (1)
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Philippine Islands (1)
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Indian Peninsula
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India
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Jharkhand India (1)
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Rajasthan India
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Barmer India (1)
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Kemerovo Russian Federation
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Shoriya Mountains (1)
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Sikhote-Alin Range (1)
-
-
Atlantic Ocean
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North Atlantic
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North Sea (1)
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-
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Australasia
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Papua New Guinea
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New Britain (1)
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-
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Canada
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Eastern Canada
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Maritime Provinces
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New Brunswick (1)
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Newfoundland and Labrador
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Labrador (1)
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Newfoundland (1)
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Quebec (3)
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Ungava (2)
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Western Canada
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British Columbia (1)
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Northwest Territories
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Lac de Gras (1)
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-
-
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Caribbean region
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West Indies
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Antilles
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Greater Antilles
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Hispaniola
-
Haiti (1)
-
-
-
Lesser Antilles
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Barbados (1)
-
-
-
-
-
Central America
-
Guatemala (1)
-
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Commonwealth of Independent States
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Russian Federation
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Kemerovo Russian Federation
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Shoriya Mountains (1)
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Sikhote-Alin Range (1)
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Europe
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Southern Europe
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Iberian Peninsula
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Spain (1)
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Italy
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Apennines (1)
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Slovenia
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Celje Slovenia (1)
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Western Europe
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Iceland (1)
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Great Britain
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Scotland (1)
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Malay Archipelago (1)
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Mexico
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Baja California (1)
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North America
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Canadian Shield
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Churchill Province
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Cape Smith fold belt (2)
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-
-
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Pacific Ocean
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Equatorial Pacific (1)
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San Joaquin Basin (1)
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South America
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Chile (1)
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Colombia (1)
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United States
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Alaska (1)
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California
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Kern County California (1)
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Yosemite National Park (1)
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Minnesota
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Duluth Complex (1)
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Montana (1)
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Western U.S. (1)
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-
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commodities
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brines (1)
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ceramic materials (1)
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diamond deposits (1)
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heavy mineral deposits (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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arsenic ores (1)
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bismuth ores (1)
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cobalt ores (1)
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copper ores (6)
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gold ores (5)
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IOCG deposits (1)
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iron ores (1)
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molybdenum ores (3)
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nickel ores (2)
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palladium ores (1)
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platinum ores (4)
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rare earth deposits (1)
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tin ores (1)
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uranium ores (1)
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-
mineral deposits, genesis (7)
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mineral exploration (5)
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mineral resources (3)
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petroleum
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natural gas (1)
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placers
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stream placers (1)
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-
-
elements, isotopes
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carbon
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C-13/C-12 (1)
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organic carbon (1)
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halogens
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bromine (1)
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chlorine (2)
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fluorine (1)
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iodine (1)
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hydrogen (2)
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incompatible elements (1)
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isotope ratios (3)
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isotopes
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radioactive isotopes (1)
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stable isotopes
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C-13/C-12 (1)
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He-4/He-3 (1)
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O-18/O-16 (2)
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-
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metals
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actinides
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thorium (3)
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uranium (2)
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alkali metals
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lithium (1)
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potassium (1)
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rubidium (1)
-
-
alkaline earth metals
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magnesium (2)
-
-
aluminum (3)
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antimony (2)
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arsenic (1)
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cadmium (1)
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chromium (1)
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copper (4)
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gold (2)
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iron (5)
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lead (1)
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mercury (2)
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molybdenum (1)
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nickel (1)
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niobium (1)
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platinum group
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palladium (5)
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palladium ores (1)
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platinum (3)
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platinum ores (4)
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rhodium (1)
-
-
precious metals (2)
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rare earths
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cerium (1)
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lanthanum (1)
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scandium (1)
-
-
silver (1)
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titanium (1)
-
zinc (2)
-
-
noble gases
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helium
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He-4/He-3 (1)
-
-
-
oxygen
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O-18/O-16 (2)
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-
phosphorus (1)
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silicon (1)
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sulfur (1)
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tellurium (1)
-
-
fossils
-
microfossils
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Conodonta (3)
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palynomorphs
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acritarchs (1)
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Dinoflagellata (1)
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miospores (1)
-
-
Plantae
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algae
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Coccolithophoraceae (1)
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nannofossils (1)
-
-
-
-
geochronology methods
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(U-Th)/He (1)
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Ar/Ar (2)
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K/Ar (1)
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optical mineralogy (1)
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paleomagnetism (2)
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Rb/Sr (1)
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tephrochronology (1)
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thermochronology (1)
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U/Pb (4)
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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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lower Holocene (1)
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-
Pleistocene
-
upper Pleistocene
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Weichselian
-
upper Weichselian
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Younger Dryas (1)
-
-
-
-
-
-
Tertiary
-
Paleogene
-
Eocene
-
upper Eocene (1)
-
-
Paleocene
-
lower Paleocene
-
K-T boundary (1)
-
-
-
-
-
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous (2)
-
Upper Cretaceous
-
K-T boundary (1)
-
-
-
Jurassic (2)
-
Triassic (2)
-
-
Paleozoic
-
Berea Sandstone (1)
-
Carboniferous
-
Mississippian (1)
-
Pennsylvanian (1)
-
-
Devonian (1)
-
Permian (1)
-
upper Paleozoic (1)
-
-
Precambrian
-
upper Precambrian
-
Proterozoic
-
Neoproterozoic (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
kimberlite (1)
-
plutonic rocks
-
gabbros (2)
-
granites (2)
-
ultramafics
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chromitite (1)
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peridotites (1)
-
-
-
volcanic rocks
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andesites (1)
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basalts (2)
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pyroclastics (1)
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rhyolites
-
quartz porphyry (1)
-
-
-
-
volcanic ash (1)
-
-
metamorphic rocks
-
metamorphic rocks (1)
-
-
meteorites
-
meteorites
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stony meteorites
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chondrites (1)
-
-
-
-
minerals
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alloys
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electrum (1)
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antimonides (1)
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arsenides
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sperrylite (2)
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-
bismuthides
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michenerite (1)
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-
carbonates
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bastnaesite (1)
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-
halides
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fluorides
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bastnaesite (1)
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-
-
iron minerals (1)
-
minerals (15)
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native elements (1)
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oxides
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chromite (1)
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goethite (1)
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hematite (2)
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iron oxides (1)
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magnetite (2)
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trevorite (1)
-
-
phosphates
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apatite (1)
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monazite (2)
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whitlockite (1)
-
-
platinum minerals (3)
-
silicates
-
aluminosilicates (1)
-
chain silicates
-
amphibole group
-
clinoamphibole
-
cummingtonite (1)
-
grunerite (1)
-
hornblende (1)
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kaersutite (1)
-
tremolite (1)
-
-
-
-
framework silicates
-
feldspar group (2)
-
scapolite group
-
scapolite (1)
-
-
silica minerals
-
quartz (2)
-
-
zeolite group (1)
-
-
orthosilicates
-
nesosilicates
-
garnet group (3)
-
zircon group
-
zircon (4)
-
-
-
sorosilicates
-
epidote group
-
epidote (2)
-
-
-
-
sheet silicates
-
chlorite group
-
chlorite (2)
-
-
clay minerals
-
kaolinite (6)
-
montmorillonite (3)
-
nontronite (1)
-
smectite (1)
-
-
illite (2)
-
mica group
-
biotite (1)
-
phlogopite (1)
-
-
palygorskite (1)
-
sepiolite (1)
-
-
-
sulfates
-
barite (2)
-
-
sulfides
-
bornite (1)
-
chalcocite (1)
-
chalcopyrite (1)
-
digenite (1)
-
iron sulfides (1)
-
laurite (1)
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pentlandite (1)
-
pyrite (3)
-
pyrrhotite (1)
-
stibnite (2)
-
-
tellurides
-
altaite (1)
-
hessite (1)
-
-
-
Primary terms
-
absolute age (4)
-
Africa
-
East Africa
-
Mozambique (1)
-
Tanzania (1)
-
-
Mozambique Belt (1)
-
Southern Africa
-
Barberton greenstone belt (1)
-
South Africa
-
Bushveld Complex (1)
-
-
-
-
Arctic region
-
Greenland
-
East Greenland (1)
-
Kangerlussuaq (1)
-
Skaergaard Intrusion (1)
-
-
-
Asia
-
Far East
-
China
-
Fujian China (1)
-
Inner Mongolia China
-
Bayan Obo China (1)
-
-
North China Platform (1)
-
-
Japan (1)
-
Philippine Islands (1)
-
-
Indian Peninsula
-
India
-
Jharkhand India (1)
-
Rajasthan India
-
Barmer India (1)
-
-
-
-
Kemerovo Russian Federation
-
Shoriya Mountains (1)
-
-
Sikhote-Alin Range (1)
-
-
Atlantic Ocean
-
North Atlantic
-
North Sea (1)
-
-
-
Australasia
-
Papua New Guinea
-
New Britain (1)
-
-
-
brines (1)
-
Canada
-
Eastern Canada
-
Maritime Provinces
-
New Brunswick (1)
-
-
Newfoundland and Labrador
-
Labrador (1)
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Newfoundland (1)
-
-
Quebec (3)
-
-
Ungava (2)
-
Western Canada
-
British Columbia (1)
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Northwest Territories
-
Lac de Gras (1)
-
-
-
-
carbon
-
C-13/C-12 (1)
-
organic carbon (1)
-
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
-
Hispaniola
-
Haiti (1)
-
-
-
Lesser Antilles
-
Barbados (1)
-
-
-
-
-
Cenozoic
-
Quaternary
-
Holocene
-
lower Holocene (1)
-
-
Pleistocene
-
upper Pleistocene
-
Weichselian
-
upper Weichselian
-
Younger Dryas (1)
-
-
-
-
-
-
Tertiary
-
Paleogene
-
Eocene
-
upper Eocene (1)
-
-
Paleocene
-
lower Paleocene
-
K-T boundary (1)
-
-
-
-
-
-
Central America
-
Guatemala (1)
-
-
ceramic materials (1)
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chemical analysis (4)
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clay mineralogy (10)
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core (1)
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crystal chemistry (6)
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crystal structure (4)
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crystallography (1)
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data processing (5)
-
Deep Sea Drilling Project
-
Leg 8
-
DSDP Site 74 (1)
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-
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diagenesis (1)
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diamond deposits (1)
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earthquakes (2)
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education (2)
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Europe
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Southern Europe
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Iberian Peninsula
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Spain (1)
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Italy
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Apennines (1)
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Slovenia
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Celje Slovenia (1)
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Western Europe
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Iceland (1)
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United Kingdom
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Great Britain
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faults (1)
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geochemistry (13)
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geochronology (2)
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geophysical methods (2)
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heavy mineral deposits (1)
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hydrogen (2)
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igneous rocks
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kimberlite (1)
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plutonic rocks
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gabbros (2)
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granites (2)
-
ultramafics
-
chromitite (1)
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peridotites (1)
-
-
-
volcanic rocks
-
andesites (1)
-
basalts (2)
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pyroclastics (1)
-
rhyolites
-
quartz porphyry (1)
-
-
-
-
inclusions
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fluid inclusions (6)
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industrial minerals (1)
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intrusions (5)
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isotopes
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radioactive isotopes (1)
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stable isotopes
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C-13/C-12 (1)
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He-4/He-3 (1)
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O-18/O-16 (2)
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-
-
kaolin deposits (1)
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magmas (6)
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Malay Archipelago (1)
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mantle (2)
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maps (1)
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous (2)
-
Upper Cretaceous
-
K-T boundary (1)
-
-
-
Jurassic (2)
-
Triassic (2)
-
-
metal ores
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arsenic ores (1)
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bismuth ores (1)
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cobalt ores (1)
-
copper ores (6)
-
gold ores (5)
-
IOCG deposits (1)
-
iron ores (1)
-
molybdenum ores (3)
-
nickel ores (2)
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palladium ores (1)
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platinum ores (4)
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rare earth deposits (1)
-
tin ores (1)
-
tungsten ores (1)
-
uranium ores (1)
-
-
metals
-
actinides
-
thorium (3)
-
uranium (2)
-
-
alkali metals
-
lithium (1)
-
potassium (1)
-
rubidium (1)
-
-
alkaline earth metals
-
magnesium (2)
-
-
aluminum (3)
-
antimony (2)
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arsenic (1)
-
cadmium (1)
-
chromium (1)
-
copper (4)
-
gold (2)
-
iron (5)
-
lead (1)
-
mercury (2)
-
molybdenum (1)
-
nickel (1)
-
niobium (1)
-
platinum group
-
palladium (5)
-
palladium ores (1)
-
platinum (3)
-
platinum ores (4)
-
rhodium (1)
-
-
precious metals (2)
-
rare earths
-
cerium (1)
-
lanthanum (1)
-
scandium (1)
-
-
silver (1)
-
titanium (1)
-
zinc (2)
-
-
metamorphic rocks (1)
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metasomatism (4)
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meteorites
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stony meteorites
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chondrites (1)
-
-
-
Mexico
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Baja California (1)
-
-
micropaleontology (3)
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mineral deposits, genesis (7)
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mineral exploration (5)
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mineral resources (3)
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mineralogy (14)
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minerals (15)
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mining geology (1)
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Moon (1)
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museums (1)
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noble gases
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helium
-
He-4/He-3 (1)
-
-
-
North America
-
Canadian Shield
-
Churchill Province
-
Cape Smith fold belt (2)
-
-
-
-
oceanography (1)
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oxygen
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O-18/O-16 (2)
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Pacific Ocean
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Equatorial Pacific (1)
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paleobotany (1)
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paleoecology (2)
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paleomagnetism (2)
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paleontology (2)
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Paleozoic
-
Berea Sandstone (1)
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Carboniferous
-
Mississippian (1)
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Pennsylvanian (1)
-
-
Devonian (1)
-
Permian (1)
-
upper Paleozoic (1)
-
-
palynology (1)
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palynomorphs
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acritarchs (1)
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Dinoflagellata (1)
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miospores (1)
-
-
petroleum
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natural gas (1)
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-
petrology (1)
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phase equilibria (6)
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phosphorus (1)
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placers
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stream placers (1)
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Plantae
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algae
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Coccolithophoraceae (1)
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nannofossils (1)
-
-
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pollution (2)
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Precambrian
-
upper Precambrian
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Proterozoic
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Neoproterozoic (1)
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remote sensing (1)
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sedimentary petrology (6)
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sedimentary rocks
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chemically precipitated rocks
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clastic rocks
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arkose (1)
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black shale (1)
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sedimentation (2)
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seismology (4)
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soils (2)
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South America
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Colombia (1)
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spectroscopy (4)
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United States
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Alaska (1)
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California
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Kern County California (1)
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Yosemite National Park (1)
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-
Minnesota
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Duluth Complex (1)
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Montana (1)
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Western U.S. (1)
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waste disposal (1)
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weathering (1)
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well-logging (1)
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X-ray analysis (2)
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sedimentary rocks
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sedimentary rocks
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carbonate rocks (2)
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chemically precipitated rocks
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phosphate rocks (1)
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-
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separation
A simple method to create mineral mounts in thin section for teaching optical mineralogy Open Access
Geometallurgy: Future Directions Available to Purchase
RECOGNITION OF PORPHYRY QUARTZ IN STREAM SEDIMENTS BY FLUID INCLUSION PETROGRAPHY AND CATHODOLUMINESCENCE MICROSCOPY: RESULTS OF SYSTEMATIC DISPERSION STUDIES AND POTENTIAL APPLICATIONS IN PORPHYRY EXPLORATION Available to Purchase
Halogen fractionation during vapor-brine phase separation revealed by in situ Cl, Br, and I analysis of scapolite from the Yixingzhai gold deposit, North China Craton Available to Purchase
Removal of barite from zircon using an aqueous solution of diethylenetriaminepentaacetic acid and potassium carbonate Available to Purchase
Comminution and Mineral Separation—Geological Input to Metallurgy Available to Purchase
Experiments on two techniques for the removal of barite from detrital zircon Available to Purchase
Dating lacustrine carbonate strata with detrital zircon U-Pb geochronology Available to Purchase
A multidisciplinary approach for the quantitative provenance analysis of siltstone: Mesozoic Mandawa Basin, southeastern Tanzania Available to Purchase
Abstract This paper shows how heavy minerals and single-grain varietal studies can be conducted on silt (representing c. 50% of world's sediments) sediments to obtain quantitative data as efficiently as for sand-sized sediments. The analytical workflows include heavy mineral separation using a wide grain-size window (15–355 μ) analysed through integrated optical analysis, Raman spectroscopy, QEMSCAN microscopy and U–Pb dating of detrital zircon. Upper Jurassic–Cretaceous silt-sized sediments from the Mandawa Basin of central-southern Tanzania have been selected for the scope of this research. Raman-aided heavy mineral analysis reveals garnet and apatite to be the most common minerals together with durable zircon, tourmaline and subordinate rutile. Accessory but diagnostic phases are titanite, staurolite, epidote and monazite. Etch pits on garnet and cockscomb features on staurolite document the significant effect of diagenesis on the pristine heavy mineral assemblage. Multivariate statistical analysis highlights a close association among durable minerals (zircon, tourmaline and rutile, ZTR) while garnet and apatite plot alone reflecting independence between the three groups of variables with garnet increasing in Jurassic samples. Raman data for garnet end-member analysis document different associations between Jurassic (richer in A, Bi and Bii types) and Cretaceous (dominant A, Ci and Cii types) samples. U–Pb dating of detrital zircon and their statistical integration with the above-mentioned datasets provide further insights into changes in provenance and/or drainage systems. Metamorphic rocks of the early and late Pan-African orogeny terranes of the Mozambique Belt and those of the Irumide Belt acted as main source of sediment during the Jurassic. Cretaceous sediments record a broadening of the drainage system reaching as far as the Usagran–Ubendian Belt and the Tanzanian Archean Craton.
Measuring Noble Gases for Thermochronology Free
Immiscibility and the origin of ladder structures, mafic layering, and schlieren in plutons Open Access
Direct Synthesis of 5A Zeolite From Palygorskite: The Influence of Crystallization Directing Agent on the Separation Performance for Hexane Isomers Available to Purchase
Platina in the 18th century: mineralogy of the crude concentrate used in the first modern attempts at refining platinum Available to Purchase
Mössbauer Spectroscopic Study of Phosphatic Sediments Collected from Fatehgarh Formation of Northern Barmer Basin, Western Rajasthan Available to Purchase
Reconnaissance reassessment of the late Eocene Oceanic unit, Barbados: Microtektite geochemistry, zircon U-Pb geochronology, micropaleontology, and provenance Available to Purchase
ABSTRACT We measured stratigraphic sections and collected samples from Oceanic suite outcrops at Gay’s Cove and Bath Cliffs, Barbados, in order to restudy the late Eocene microtektite layer(s) and provide new geological context. We disaggregated and processed samples into separates of microfossils, microtektites, and heavy minerals, and we present up-to-date glass geochemistry, biostratigraphic analysis, and detrital zircon U-Pb analysis. Results from the new Barbadian microtektite glass chemistry analysis (Gay’s Cove) compare well with those from other published microtektite analyses, as well as those from the correlative North American strewn field. Micropaleontology confirms a late Eocene age for the Oceanic microtektite horizon at Gay’s Cove. Using U-Pb, we dated 24 Tertiary zircon grains, probably from volcanic ash-fall events, which at Gay’s Cove yielded a preliminary, poorly defined, and incorrect depositional age for the microtektite layer (≤31.84 ± 0.85 Ma; weighted mean of only three grains). Three additional new U-Pb depositional ages (≤38.52 ± 1.0 Ma, ≤39.23 ± 0.3 Ma, ≤35.25 ± 0.82 Ma) were obtained from bottom to top in the 24 m section at Bath Cliffs. We also dated 46 Paleozoic–Proterozoic zircon grains using U-Pb and discuss whether these “old” grains represent recycled (subducted and extruded) volcanic grains or windblown silt/sand from Africa.