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NARROW
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Alexander Terrane (4)
-
Arctic region (1)
-
Australasia
-
New Zealand
-
Otago New Zealand (1)
-
Otago Schist (1)
-
-
-
Cache Creek Terrane (3)
-
Canada
-
Cassiar Mountains (3)
-
Stikinia Terrane (7)
-
Western Canada
-
Alberta (1)
-
British Columbia (12)
-
Canadian Cordillera (29)
-
Canadian Rocky Mountains (1)
-
Selwyn Basin (1)
-
Yukon Territory
-
Klondike (1)
-
Whitehorse Yukon Territory (2)
-
-
-
Whitehorse Trough (1)
-
-
Cascade Range (1)
-
Coast Mountains (5)
-
McGrath Quadrangle (1)
-
North America
-
Canadian Shield
-
Slave Province (2)
-
-
Denali Fault (2)
-
Intermontane Belt (4)
-
North American Cordillera
-
Canadian Cordillera (29)
-
-
North American Craton (2)
-
Omineca Belt (2)
-
Rocky Mountains
-
Canadian Rocky Mountains (1)
-
-
Slide Mountain Terrane (8)
-
Tintina Fault (4)
-
Western Canada Sedimentary Basin (2)
-
Western Interior (1)
-
Yukon River (1)
-
Yukon-Tanana Terrane (74)
-
Yukon-Tanana Upland (3)
-
-
Queen Charlotte Fault (1)
-
Quesnellia Terrane (4)
-
South Island (1)
-
United States
-
Alaska
-
Alaska Range (6)
-
Fairbanks Alaska (1)
-
Fairbanks mining district (1)
-
Kenai Quadrangle (1)
-
Salcha River (1)
-
Talkeetna Mountains (1)
-
Talkeetna Quadrangle (1)
-
Tyonek Quadrangle (1)
-
-
California
-
Salinian Block (1)
-
-
Idaho (1)
-
Nevada (1)
-
Southwestern U.S. (1)
-
-
Wood River (1)
-
-
commodities
-
gems (1)
-
metal ores
-
base metals (2)
-
cobalt ores (1)
-
copper ores (5)
-
gold ores (6)
-
lead ores (2)
-
lead-zinc deposits (3)
-
molybdenum ores (1)
-
polymetallic ores (2)
-
silver ores (2)
-
zinc ores (2)
-
-
mineral deposits, genesis (9)
-
mineral exploration (1)
-
petroleum (2)
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (2)
-
-
chemical ratios (4)
-
hydrogen
-
D/H (3)
-
-
isotope ratios (17)
-
isotopes
-
radioactive isotopes
-
Pb-206/Pb-204 (4)
-
Pb-207/Pb-204 (4)
-
Pb-208/Pb-204 (2)
-
Sm-147/Nd-144 (1)
-
-
stable isotopes
-
C-13/C-12 (2)
-
D/H (3)
-
Hf-177/Hf-176 (6)
-
Nd-144/Nd-143 (7)
-
O-18/O-16 (5)
-
Pb-206/Pb-204 (4)
-
Pb-207/Pb-204 (4)
-
Pb-207/Pb-206 (2)
-
Pb-208/Pb-204 (2)
-
Pb-208/Pb-206 (2)
-
S-34/S-32 (3)
-
Sm-147/Nd-144 (1)
-
Sr-87/Sr-86 (3)
-
-
-
metals
-
alkaline earth metals
-
strontium
-
Sr-87/Sr-86 (3)
-
-
-
arsenic (1)
-
hafnium
-
Hf-177/Hf-176 (6)
-
-
iron (1)
-
lead
-
Pb-206/Pb-204 (4)
-
Pb-207/Pb-204 (4)
-
Pb-207/Pb-206 (2)
-
Pb-208/Pb-204 (2)
-
Pb-208/Pb-206 (2)
-
-
rare earths
-
cerium (1)
-
lutetium (1)
-
neodymium
-
Nd-144/Nd-143 (7)
-
Sm-147/Nd-144 (1)
-
-
samarium
-
Sm-147/Nd-144 (1)
-
-
yttrium (1)
-
-
-
oxygen
-
O-18/O-16 (5)
-
-
selenium (1)
-
sulfur
-
S-34/S-32 (3)
-
-
-
fossils
-
Chordata
-
Vertebrata
-
Agnatha (1)
-
-
-
microfossils
-
Conodonta (1)
-
-
-
geochronology methods
-
Ar/Ar (7)
-
K/Ar (2)
-
Nd/Nd (1)
-
paleomagnetism (2)
-
Pb/Pb (2)
-
Rb/Sr (1)
-
Re/Os (1)
-
Sm/Nd (2)
-
Sr/Sr (1)
-
Th/U (1)
-
thermochronology (1)
-
U/Pb (31)
-
U/Th/Pb (1)
-
-
geologic age
-
Cenozoic
-
Tertiary
-
Neogene
-
Pliocene (1)
-
-
Paleogene
-
Eocene (2)
-
Oligocene (1)
-
Paleocene (1)
-
-
-
-
Mesozoic
-
Cretaceous
-
Kuskokwim Group (1)
-
Lower Cretaceous (4)
-
Middle Cretaceous (4)
-
Queen Charlotte Group (1)
-
Upper Cretaceous (5)
-
-
Jurassic
-
Lower Jurassic
-
Laberge Group (2)
-
-
Middle Jurassic (2)
-
Upper Jurassic (1)
-
-
McHugh Complex (1)
-
Triassic
-
Lower Triassic (1)
-
Montney Formation (1)
-
Upper Triassic
-
Carnian (1)
-
Norian (1)
-
-
-
-
Paleozoic
-
Carboniferous
-
Mississippian
-
Lower Mississippian (2)
-
Rampart Group (1)
-
Upper Mississippian (1)
-
-
-
Devonian
-
Upper Devonian (6)
-
-
middle Paleozoic (6)
-
Permian
-
Lower Permian (1)
-
Upper Permian (1)
-
-
upper Paleozoic (4)
-
-
Phanerozoic (1)
-
Precambrian
-
Archean (2)
-
upper Precambrian
-
Proterozoic
-
Neoproterozoic (1)
-
Paleoproterozoic (2)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
plutonic rocks
-
diorites
-
quartz diorites (1)
-
-
gabbros (2)
-
granites (2)
-
ultramafics (1)
-
-
volcanic rocks
-
andesites
-
boninite (1)
-
-
basalts
-
alkali basalts (2)
-
mid-ocean ridge basalts (1)
-
ocean-island basalts (1)
-
-
-
-
ophiolite (1)
-
-
metamorphic rocks
-
metamorphic rocks
-
eclogite (9)
-
gneisses
-
augen gneiss (1)
-
orthogneiss (3)
-
tonalite gneiss (1)
-
-
marbles (2)
-
metaigneous rocks
-
metabasalt (1)
-
metabasite (1)
-
metagabbro (1)
-
metaperidotite (1)
-
metarhyolite (1)
-
-
metaplutonic rocks (2)
-
metasedimentary rocks
-
metaconglomerate (1)
-
-
metavolcanic rocks (6)
-
phyllites (1)
-
schists
-
greenstone (2)
-
-
-
ophiolite (1)
-
-
minerals
-
phosphates
-
monazite (2)
-
xenotime (1)
-
-
silicates
-
chain silicates
-
amphibole group
-
clinoamphibole
-
hornblende (1)
-
-
-
pyroxene group (1)
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
K-feldspar (1)
-
-
-
-
orthosilicates
-
nesosilicates
-
andalusite (1)
-
garnet group (4)
-
kyanite (1)
-
sillimanite (1)
-
zircon group
-
zircon (26)
-
-
-
-
ring silicates
-
beryl (1)
-
cordierite (1)
-
emerald (1)
-
tourmaline group (1)
-
-
sheet silicates
-
mica group
-
biotite (1)
-
phengite (1)
-
-
-
-
sulfides
-
molybdenite (1)
-
-
-
Primary terms
-
absolute age (39)
-
Arctic region (1)
-
Australasia
-
New Zealand
-
Otago New Zealand (1)
-
Otago Schist (1)
-
-
-
Canada
-
Cassiar Mountains (3)
-
Stikinia Terrane (7)
-
Western Canada
-
Alberta (1)
-
British Columbia (12)
-
Canadian Cordillera (29)
-
Canadian Rocky Mountains (1)
-
Selwyn Basin (1)
-
Yukon Territory
-
Klondike (1)
-
Whitehorse Yukon Territory (2)
-
-
-
Whitehorse Trough (1)
-
-
carbon
-
C-13/C-12 (2)
-
-
Cenozoic
-
Tertiary
-
Neogene
-
Pliocene (1)
-
-
Paleogene
-
Eocene (2)
-
Oligocene (1)
-
Paleocene (1)
-
-
-
-
Chordata
-
Vertebrata
-
Agnatha (1)
-
-
-
crust (16)
-
crystal chemistry (2)
-
deformation (11)
-
diagenesis (2)
-
earthquakes (1)
-
faults (15)
-
folds (5)
-
foliation (3)
-
gems (1)
-
geochemistry (23)
-
geophysical methods (3)
-
geosynclines (1)
-
ground water (1)
-
heat flow (1)
-
hydrogen
-
D/H (3)
-
-
igneous rocks
-
plutonic rocks
-
diorites
-
quartz diorites (1)
-
-
gabbros (2)
-
granites (2)
-
ultramafics (1)
-
-
volcanic rocks
-
andesites
-
boninite (1)
-
-
basalts
-
alkali basalts (2)
-
mid-ocean ridge basalts (1)
-
ocean-island basalts (1)
-
-
-
-
inclusions
-
fluid inclusions (4)
-
-
intrusions (15)
-
isotopes
-
radioactive isotopes
-
Pb-206/Pb-204 (4)
-
Pb-207/Pb-204 (4)
-
Pb-208/Pb-204 (2)
-
Sm-147/Nd-144 (1)
-
-
stable isotopes
-
C-13/C-12 (2)
-
D/H (3)
-
Hf-177/Hf-176 (6)
-
Nd-144/Nd-143 (7)
-
O-18/O-16 (5)
-
Pb-206/Pb-204 (4)
-
Pb-207/Pb-204 (4)
-
Pb-207/Pb-206 (2)
-
Pb-208/Pb-204 (2)
-
Pb-208/Pb-206 (2)
-
S-34/S-32 (3)
-
Sm-147/Nd-144 (1)
-
Sr-87/Sr-86 (3)
-
-
-
lava (2)
-
magmas (2)
-
mantle (6)
-
Mesozoic
-
Cretaceous
-
Kuskokwim Group (1)
-
Lower Cretaceous (4)
-
Middle Cretaceous (4)
-
Queen Charlotte Group (1)
-
Upper Cretaceous (5)
-
-
Jurassic
-
Lower Jurassic
-
Laberge Group (2)
-
-
Middle Jurassic (2)
-
Upper Jurassic (1)
-
-
McHugh Complex (1)
-
Triassic
-
Lower Triassic (1)
-
Montney Formation (1)
-
Upper Triassic
-
Carnian (1)
-
Norian (1)
-
-
-
-
metal ores
-
base metals (2)
-
cobalt ores (1)
-
copper ores (5)
-
gold ores (6)
-
lead ores (2)
-
lead-zinc deposits (3)
-
molybdenum ores (1)
-
polymetallic ores (2)
-
silver ores (2)
-
zinc ores (2)
-
-
metals
-
alkaline earth metals
-
strontium
-
Sr-87/Sr-86 (3)
-
-
-
arsenic (1)
-
hafnium
-
Hf-177/Hf-176 (6)
-
-
iron (1)
-
lead
-
Pb-206/Pb-204 (4)
-
Pb-207/Pb-204 (4)
-
Pb-207/Pb-206 (2)
-
Pb-208/Pb-204 (2)
-
Pb-208/Pb-206 (2)
-
-
rare earths
-
cerium (1)
-
lutetium (1)
-
neodymium
-
Nd-144/Nd-143 (7)
-
Sm-147/Nd-144 (1)
-
-
samarium
-
Sm-147/Nd-144 (1)
-
-
yttrium (1)
-
-
-
metamorphic rocks
-
eclogite (9)
-
gneisses
-
augen gneiss (1)
-
orthogneiss (3)
-
tonalite gneiss (1)
-
-
marbles (2)
-
metaigneous rocks
-
metabasalt (1)
-
metabasite (1)
-
metagabbro (1)
-
metaperidotite (1)
-
metarhyolite (1)
-
-
metaplutonic rocks (2)
-
metasedimentary rocks
-
metaconglomerate (1)
-
-
metavolcanic rocks (6)
-
phyllites (1)
-
schists
-
greenstone (2)
-
-
-
metamorphism (16)
-
metasomatism (1)
-
mineral deposits, genesis (9)
-
mineral exploration (1)
-
Mohorovicic discontinuity (2)
-
North America
-
Canadian Shield
-
Slave Province (2)
-
-
Denali Fault (2)
-
Intermontane Belt (4)
-
North American Cordillera
-
Canadian Cordillera (29)
-
-
North American Craton (2)
-
Omineca Belt (2)
-
Rocky Mountains
-
Canadian Rocky Mountains (1)
-
-
Slide Mountain Terrane (8)
-
Tintina Fault (4)
-
Western Canada Sedimentary Basin (2)
-
Western Interior (1)
-
Yukon River (1)
-
Yukon-Tanana Terrane (74)
-
Yukon-Tanana Upland (3)
-
-
orogeny (3)
-
oxygen
-
O-18/O-16 (5)
-
-
paleogeography (6)
-
paleomagnetism (2)
-
Paleozoic
-
Carboniferous
-
Mississippian
-
Lower Mississippian (2)
-
Rampart Group (1)
-
Upper Mississippian (1)
-
-
-
Devonian
-
Upper Devonian (6)
-
-
middle Paleozoic (6)
-
Permian
-
Lower Permian (1)
-
Upper Permian (1)
-
-
upper Paleozoic (4)
-
-
paragenesis (1)
-
petroleum (2)
-
Phanerozoic (1)
-
phase equilibria (3)
-
plate tectonics (23)
-
Precambrian
-
Archean (2)
-
upper Precambrian
-
Proterozoic
-
Neoproterozoic (1)
-
Paleoproterozoic (2)
-
-
-
-
sedimentary rocks
-
carbonate rocks
-
limestone (3)
-
-
chemically precipitated rocks
-
chert (1)
-
-
clastic rocks
-
argillite (1)
-
black shale (1)
-
conglomerate (6)
-
graywacke (1)
-
mudstone (3)
-
sandstone (8)
-
shale (3)
-
siltstone (2)
-
-
-
sedimentation (2)
-
selenium (1)
-
structural analysis (7)
-
structural geology (2)
-
sulfur
-
S-34/S-32 (3)
-
-
tectonics (32)
-
United States
-
Alaska
-
Alaska Range (6)
-
Fairbanks Alaska (1)
-
Fairbanks mining district (1)
-
Kenai Quadrangle (1)
-
Salcha River (1)
-
Talkeetna Mountains (1)
-
Talkeetna Quadrangle (1)
-
Tyonek Quadrangle (1)
-
-
California
-
Salinian Block (1)
-
-
Idaho (1)
-
Nevada (1)
-
Southwestern U.S. (1)
-
-
-
rock formations
-
Hazelton Group (1)
-
Nanaimo Group (1)
-
-
sedimentary rocks
-
flysch (2)
-
sedimentary rocks
-
carbonate rocks
-
limestone (3)
-
-
chemically precipitated rocks
-
chert (1)
-
-
clastic rocks
-
argillite (1)
-
black shale (1)
-
conglomerate (6)
-
graywacke (1)
-
mudstone (3)
-
sandstone (8)
-
shale (3)
-
siltstone (2)
-
-
-
siliciclastics (1)
-
volcaniclastics (2)
-
-
sedimentary structures
-
boudinage (1)
-
-
sediments
-
siliciclastics (1)
-
volcaniclastics (2)
-
Yukon-Tanana Terrane
Detrital zircon U-Pb and Hf isotope signature of Carboniferous and older strata of the Yukon-Tanana terrane in Yukon, Canadian Cordillera: Implications for terrane correlations and the onset of Late Devonian arc magmatism
Age and Chemostratigraphy of the Finlayson Lake District, Yukon: Implications for Volcanogenic Massive Sulfide (VMS) Mineralization and Tectonics along the Western Laurentian Continental Margin
150 Myr of Episodic Metamorphism Recorded in the Yukon-Tanana Terrane, Northern Canadian Cordillera: Evidence from Monazite and Xenotime Petrochronology
Controls on groundwater selenium, arsenic and base metals in groundwater around a selenium-bearing volcanogenic massive sulfide deposit: constraints from stable isotopes, trace elements and redox controls
Latest Triassic–Early Jurassic Stikine–Yukon-Tanana terrane collision and the onset of accretion in the Canadian Cordillera: Insights from Hazelton Group detrital zircon provenance and arc–back-arc configuration
The mid-Cretaceous Peninsular Ranges orogeny: a new slant on Cordilleran tectonics? II: northern United States and Canada
Cretaceous to Oligocene magmatic and tectonic evolution of the western Alaska Range: Insights from U-Pb and 40 Ar/ 39 Ar geochronology
U-Th-Pb Geochronology and Lu-Hf Isotope Geochemistry of Detrital Zircons in Metasedimentary Rocks of the Southern Coast Mountains Batholith
Detrital zircon geochronology and Hf isotope geochemistry of Mesozoic sedimentary basins in south-central Alaska: Insights into regional sediment transport, basin development, and tectonics along the NW Cordilleran margin
Originally prepared for the GSA Thompson Field Forum that ran from Terrace to Prince Rupert, British Columbia, this guide describes the geology along the Skeena River transect of the Coast Mountains batholith, the largest Cordilleran batholith of western North America and one of the largest continental-margin batholiths in the world. The last guide to this area was published in 1983 and this new volume is the only modern overview of the last decades of work. The authors use the transect as a basis to examine the growth of the Coast Mountains batholith as a whole, emphasizing commonalities and variations with the batholith and how these traits may reflect magmatic processes that create convergent-margin batholiths.
Syn-accretionary multistage assembly of an Early Jurassic Alaskan-type intrusion in the Canadian Cordillera: U–Pb and 40 Ar/ 39 Ar geochronology of the Turnagain ultramafic–mafic intrusive complex, Yukon–Tanana terrane
Lead Isotope Geochemistry of Shales from the Wolverine Volcanogenic Massive Sulfide Deposit, Yukon: Implications for Pb Isotope Vectoring in Exhalative Ore Systems
Structural evolution of a crustal-scale shear zone through a decreasing temperature regime: The Yukon River shear zone, Yukon-Tanana terrane, Northern Cordillera
Petrogenesis of the Dunite Peak ophiolite, south-central Yukon, and the distinction between upper-plate and lower-plate settings: A new hypothesis for the late Paleozoic–early Mesozoic tectonic evolution of the Northern Cordillera
Subsidence dynamics of the Montney Formation (Early Triassic, Western Canada Sedimentary Basin): insights for its geodynamic setting and wider implications
A Pangean rim of fire: Reviewing the Triassic of western Laurentia
The Yukon-Tanana terrane lies within the North American Cordilleran accretionary orogen and contains strongly deformed, coherent eclogite-bearing units that are candidates for wholesale subduction erosion of large blocks of crust. The Yukon-Tanana terrane is a composite continental arc built on a peri-Laurentian substrate that experienced subduction on both sides before it was accreted back onto Laurentia in the Mesozoic. Along the present-day eastern margin of the terrane, eclogites are found as layers and lenses in quartzofeldspathic schist derived from both igneous and sedimentary protoliths, all metamorphosed together during the Permian. In the St. Cyr area, coherent slices of eclogite-bearing crust up to 30 km long and 1–2 km thick have been mapped. Phengite with Si = 3.3–3.4 per formula unit from the host schists indicates that they also record eclogite-facies metamorphism. Detrital zircon was recovered from six host-rock samples collected at three high-pressure (HP) localities (St. Cyr, Ross River, and Last Peak), and from two eclogite-free units. Samples from the eclogite-free units and Last Peak have detrital zircon signatures with prominent Mesoproterozoic and Paleoproterozoic peaks typical of the Snowcap assemblage, the peri-Laurentian substrate of the Yukon-Tanana terrane. Detrital spectra from the St. Cyr and Ross River HP localities contain Precambrian, mostly Mesoproterozoic, zircon with significant Paleozoic peaks that match ages of igneous events in the Yukon-Tanana terrane. The coherent slices of crust containing eclogite, meta-tonalite, and arc-derived metasedimentary rocks are interpreted as pieces of Yukon-Tanana terrane that were eroded from the arc during subduction of oceanic lithosphere and reaccreted to the arc prior to Mesozoic emplacement of the Yukon-Tanana terrane onto North America.