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NARROW
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Australasia
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Australia
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Queensland Australia (1)
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-
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Cache Creek Terrane (1)
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Canada
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Nunavut
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Lupin Mine (1)
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Western Canada
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Alberta
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Alberta Basin (1)
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British Columbia
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Kimberley British Columbia (1)
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Tulameen coal area (1)
-
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Canadian Cordillera (6)
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Canadian Rocky Mountains (5)
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Contwoyto Lake (1)
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Lupin Mine (1)
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Manitoba
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Flin Flon Manitoba (1)
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Snow Lake Manitoba (1)
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Northwest Territories
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Pine Point mining district (2)
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Selwyn Basin (1)
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Yukon Territory (5)
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-
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DSDP Site 504 (1)
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North America
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Appalachians
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Blue Ridge Province (1)
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Southern Appalachians (1)
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Canadian Shield
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Slave Province (1)
-
-
North American Cordillera
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Canadian Cordillera (6)
-
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Okanagan Valley (1)
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Omineca Belt (2)
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Rocky Mountains
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Canadian Rocky Mountains (5)
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Yukon-Tanana Terrane (1)
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Pacific Ocean
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East Pacific
-
Costa Rica Rift (1)
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Equatorial Pacific (1)
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United States
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Tennessee
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Polk County Tennessee
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Ducktown Tennessee (1)
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-
-
-
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commodities
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barite deposits (1)
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brines (3)
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metal ores
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antimony ores (2)
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bismuth ores (1)
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copper ores (5)
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gold ores (10)
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iron ores (1)
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lead-zinc deposits (6)
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mercury ores (1)
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molybdenum ores (1)
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platinum ores (1)
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polymetallic ores (3)
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silver ores (2)
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zinc ores (2)
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-
mineral deposits, genesis (20)
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mineral exploration (3)
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petroleum
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natural gas (1)
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talc deposits (1)
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-
elements, isotopes
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carbon
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C-13/C-12 (10)
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chemical ratios (2)
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halogens
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bromine (1)
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chlorine (1)
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iodine (1)
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hydrogen
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D/H (11)
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deuterium (8)
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isotope ratios (7)
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isotopes
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stable isotopes
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C-13/C-12 (10)
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D/H (11)
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deuterium (8)
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O-18/O-16 (12)
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Sr-87/Sr-86 (3)
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-
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metals
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alkali metals
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sodium (1)
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alkaline earth metals
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strontium
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Sr-87/Sr-86 (3)
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gold (1)
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lead (2)
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platinum group
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platinum ores (1)
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-
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oxygen
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O-18/O-16 (12)
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sulfur (1)
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geochronology methods
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Nd/Nd (1)
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Pb/Pb (1)
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Sr/Sr (1)
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geologic age
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Cenozoic (1)
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Mesozoic
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Cretaceous
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Lower Cretaceous
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Bluesky Formation (1)
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Cadomin Formation (1)
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Spirit River Formation (1)
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Paleozoic
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Cambrian
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Middle Cambrian (1)
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Carboniferous
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Mississippian (1)
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Devonian
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Upper Devonian (1)
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Earn Group (1)
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Silurian (1)
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upper Paleozoic (2)
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Precambrian
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upper Precambrian
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Proterozoic
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Mesoproterozoic
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Aldridge Formation (1)
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igneous rocks
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igneous rocks
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plutonic rocks
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monzonites (1)
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ultramafics (1)
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volcanic rocks
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basalts
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alkali basalts
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spilite (1)
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metamorphic rocks
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metamorphic rocks
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gneisses
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orthogneiss (1)
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listwanite (1)
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metaigneous rocks
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metabasalt (1)
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metasedimentary rocks (1)
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metasomatic rocks
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skarn (2)
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metavolcanic rocks (3)
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schists
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tourmalinite (1)
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minerals
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carbonates
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ankerite (1)
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calcite (1)
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dolomite (3)
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magnesite (1)
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minerals (2)
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oxides
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chromite (1)
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silicates
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chain silicates
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amphibole group
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clinoamphibole
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kaersutite (1)
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pyroxene group
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clinopyroxene
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augite (1)
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hedenbergite (1)
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framework silicates
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feldspar group
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plagioclase
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albite (1)
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silica minerals
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quartz (2)
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ring silicates
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tourmaline group (1)
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sheet silicates
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chlorite group
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chlorite (1)
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mica group
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muscovite (1)
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talc (1)
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sulfides
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molybdenite (1)
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stibnite (1)
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Primary terms
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absolute age (1)
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Australasia
-
Australia
-
Queensland Australia (1)
-
-
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barite deposits (1)
-
brines (3)
-
Canada
-
Nunavut
-
Lupin Mine (1)
-
-
Western Canada
-
Alberta
-
Alberta Basin (1)
-
-
British Columbia
-
Kimberley British Columbia (1)
-
Tulameen coal area (1)
-
-
Canadian Cordillera (6)
-
Canadian Rocky Mountains (5)
-
Contwoyto Lake (1)
-
Lupin Mine (1)
-
Manitoba
-
Flin Flon Manitoba (1)
-
Snow Lake Manitoba (1)
-
-
Northwest Territories
-
Pine Point mining district (2)
-
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Selwyn Basin (1)
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Yukon Territory (5)
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-
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carbon
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C-13/C-12 (10)
-
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Cenozoic (1)
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crust (4)
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Deep Sea Drilling Project
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IPOD
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Leg 69 (1)
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Leg 70 (1)
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Leg 83 (1)
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Leg 92 (1)
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deformation (1)
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diagenesis (3)
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economic geology (14)
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faults (1)
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geochemistry (11)
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ground water (1)
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hydrogen
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D/H (11)
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deuterium (8)
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igneous rocks
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plutonic rocks
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monzonites (1)
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ultramafics (1)
-
-
volcanic rocks
-
basalts
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alkali basalts
-
spilite (1)
-
-
-
-
-
inclusions
-
fluid inclusions (12)
-
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intrusions (2)
-
isotopes
-
stable isotopes
-
C-13/C-12 (10)
-
D/H (11)
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deuterium (8)
-
O-18/O-16 (12)
-
Sr-87/Sr-86 (3)
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-
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magmas (3)
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Mesozoic
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Cretaceous
-
Lower Cretaceous
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Bluesky Formation (1)
-
Cadomin Formation (1)
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Spirit River Formation (1)
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-
-
-
metal ores
-
antimony ores (2)
-
bismuth ores (1)
-
copper ores (5)
-
gold ores (10)
-
iron ores (1)
-
lead-zinc deposits (6)
-
mercury ores (1)
-
molybdenum ores (1)
-
platinum ores (1)
-
polymetallic ores (3)
-
silver ores (2)
-
zinc ores (2)
-
-
metals
-
alkali metals
-
sodium (1)
-
-
alkaline earth metals
-
strontium
-
Sr-87/Sr-86 (3)
-
-
-
gold (1)
-
lead (2)
-
platinum group
-
platinum ores (1)
-
-
-
metamorphic rocks
-
gneisses
-
orthogneiss (1)
-
-
listwanite (1)
-
metaigneous rocks
-
metabasalt (1)
-
-
metasedimentary rocks (1)
-
metasomatic rocks
-
skarn (2)
-
-
metavolcanic rocks (3)
-
schists
-
tourmalinite (1)
-
-
-
metamorphism (8)
-
metasomatism (9)
-
mineral deposits, genesis (20)
-
mineral exploration (3)
-
minerals (2)
-
North America
-
Appalachians
-
Blue Ridge Province (1)
-
Southern Appalachians (1)
-
-
Canadian Shield
-
Slave Province (1)
-
-
North American Cordillera
-
Canadian Cordillera (6)
-
-
Okanagan Valley (1)
-
Omineca Belt (2)
-
Rocky Mountains
-
Canadian Rocky Mountains (5)
-
-
Yukon-Tanana Terrane (1)
-
-
Ocean Drilling Program
-
Leg 111 (1)
-
Leg 137 (1)
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Leg 140 (1)
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Leg 148 (1)
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orogeny (1)
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oxygen
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O-18/O-16 (12)
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Pacific Ocean
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East Pacific
-
Costa Rica Rift (1)
-
-
Equatorial Pacific (1)
-
-
paleoclimatology (1)
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Paleozoic
-
Cambrian
-
Middle Cambrian (1)
-
-
Carboniferous
-
Mississippian (1)
-
-
Devonian
-
Upper Devonian (1)
-
-
Earn Group (1)
-
Silurian (1)
-
upper Paleozoic (2)
-
-
paragenesis (2)
-
petroleum
-
natural gas (1)
-
-
petrology (3)
-
phase equilibria (3)
-
plate tectonics (2)
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Precambrian
-
upper Precambrian
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Proterozoic
-
Mesoproterozoic
-
Aldridge Formation (1)
-
-
-
-
-
sedimentary rocks
-
carbonate rocks (2)
-
chemically precipitated rocks
-
chert (1)
-
iron formations (1)
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-
clastic rocks
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conglomerate (3)
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mudstone (1)
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sandstone (1)
-
shale (1)
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-
-
sulfur (1)
-
talc deposits (1)
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tectonics
-
neotectonics (1)
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United States
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Tennessee
-
Polk County Tennessee
-
Ducktown Tennessee (1)
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-
-
-
-
rock formations
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Cache Creek Group (1)
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Peace River Formation (1)
-
-
sedimentary rocks
-
sedimentary rocks
-
carbonate rocks (2)
-
chemically precipitated rocks
-
chert (1)
-
iron formations (1)
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-
clastic rocks
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conglomerate (3)
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mudstone (1)
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sandstone (1)
-
shale (1)
-
-
-
Hydrothermal Alteration and Fluid Chemistry of the Endako Porphyry Molybdenum Deposit, British Columbia
Major and trace element compositions and Sr-Nd-Pb systematics of crystalline rocks from the Dawson Range, Yukon, Canada
Solute chemistry of inclusion fluids from sparry dolomites and magnesites in Middle Cambrian carbonate rocks of the southern Canadian Rocky Mountains
Meteoric water component in magmatic fluids from porphyry copper mineralization, Babine Lake area, British Columbia
Geochemistry of syntectonic, crustal fluid regimes along the Lithoprobe Southern Canadian Cordillera Transect
Geochemical studies of the origins and effects of synorogenic crustal fluids in the southern Omineca Belt of British Columbia, Canada
Paleohydrogeology of the Canadian Rockies and origins of brines, Pb-Zn deposits and dolomitization in the Western Canada Sedimentary Basin: Comment and Reply
Surface fluid convection during Cordilleran extension and the generation of metamorphic CO2 contributions to Cenozoic atmospheres
Paleohydrogeology of the Canadian Rockies and origins of brines, Pb-Zn deposits and dolomitization in the Western Canada Sedimentary Basin: Comment and Reply
Paleohydrogeology of the Canadian Rockies and origins of brines, Pb-Zn deposits and dolomitization in the Western Canada Sedimentary Basin
Melange- and sediment-hosted gold-bearing quartz veins, Hodgkinson gold field, Queensland, Australia; discussion
A mesothermal gold-stibnite-quartz vein occurrence in the Canadian Cordillera
Geology of unmineralized and gold-bearing iron formation, Contwoyto Lake – Point Lake region, Northwest Territories, Canada: Reply
Thermal History of Alberta Deep Basin: Comparative Study of Fluid Inclusion and Vitrinite Reflectance Data
Genetic implications of stable isotope characteristics of mesothermal Au deposits and related Sb and Hg deposits in the Canadian Cordillera
A fluid inclusion and stable-isotope study of the Tom Ba-Pb-Zn deposit, Yukon Territory, Canada
Gold mineralization in the Okanagan Valley, southern British Columbia; fluid inclusion and stable isotope studies
Abstract To date, mesotlierma] lode Au deposits have constituted the principal source of lode and placer Au in the Canadian Cordillera. In addition, these deposits are significant to the understanding of the genesis of Au deposits in general, since they are young analogues of the larger, more enigmatic Archean deposits. Mesothermal lode Au deposits in the Canadian Cordillera are situated in allochthonous terranes of the cordillera and show a strong spatial association with major strike-slip faults. The deposits are hosted by rock types of the greenschist facies varying from clastic and chemical sedimentary units to felsic and mafic volcanics and plutons. Age dating and structural relations indicate a timing for the emplacement of the ores which is subsequent to the peak of metamorphism. The ores are generally composed of subvertical, continuous quartz veins with minor amounts of carbonate, pyrite, arsenopyrite, and scheelite. Au is paragenetically late and is associated with minor amounts of galena or sphalerite. Hydrothermal alteration zones are dominantly comprised of Fe-Ca-Mg carbonates, albite, quartz, or sericite. Sb and Hg deposits in the Canadian Cordillera possess many of the geologic characteristics described above and are believed to represent distal portions of the Au system. In mesothermal Au deposits of the cordillera, Au/Ag ratios are typically greater than 1.0, and enrichments in As, B, Ba, W, Sb, Hg, and S are common. Fluid inclusion studies indicate formation temperatures of 250° to 350°C and pressures of 1.0 ± 0.3 kbars, with high CO 2 contents and low salinities in the ore fluids. Stable isotope studies indicate that the ore fluids were enriched in 18 O (delta; 18 O n , lid = 6-10‰). The 5D values of the ore fluids are strongly depleted in D and latitudinally dependent indicating the involvement of evolved meteoric water in the ore- forming fluid. A model for the origin of mesothermal lode Au deposits in the Canadian Cordillera invokes deep convection (12-15 km) and chemical evolution of meteoric water in the brittle crust. The fluids ascend in highly permeable zones associated with major strike-slip faults. At approximately 10-km depth, Au-bearing quartz veins are formed. At shallower levels, Sb and Hg deposits are formed.