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![Map of the Northern Cordilleran terranes after Colpron and Nelson [135]. The locations of metamorphic studies compiled in Table 1 are indicated by circled numbers: 1—Stewart River [24, 96]; 2—Klondike district, McQuesten, and Australia Mountains [25–28]; 3—Aishihik Lake [98]; 4—Southwest Yukon [97]; 5—Last Peak [19]; 6—Saint-Cyr klippe [119]; 7— Faro [21]; 8—Finlayson Lake district [20, 23, 27]; 9—Big Salmon Complex [22]; 10—Atlin Lake [7]; 11—Eclogite Ridge [30]. Atlin Lake area (#10) is targeted by this research. BC: British Columbia; NA: North America; NWT: Northwest Territories.]()
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![Regional Bouguer gravity field in the study area. Batholiths that correlate with negative gravity anomalies include Aishihik (ASB), Cassiar (CB), Quiet Lake (QL), Nisling (NS), and Mount Billings (MB).]()
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![Representative lithotypes in the McQuesten area. A, Psammitic schist of the Snowcap assemblage showing tight to isoclinal folds. Hammer approximately 50 cm. B, Strongly foliated granodiorite of the Simpson Range suite. C, Photomicrograph of granodiorite protolith of the Simpson Range suite. D, Penetrative foliation in granodiorite of the Sulphur Creek suite showing characteristic k-feldspar augen. E, Highly fissile metarhyodacite of the Klinkit assemblage. F, Typical monzogranite of the Reid Lakes complex showing k-feldspar phenocrysts and smoky gray quartz. G, Polymict volcaniclastic breccia of the Reid Lakes complex. H, Photomicrograph of monzogranite of the Aishihik suite, showing altered feldspar, minor chlorite after biotite, and possible magmatic epidote. I, Photomicrograph of high-strain component of the Reid Lakes complex. Note the high degree of strain relative to the Reid Lakes pluton sample.]()
![SEM cathodoluminescence images of representative zircon for samples dated by U-Pb and (U-Th)/He methods. Bright areas are low-U zones. A, Abundant inclusions in zircon of 09RAYMC081A (Simpson Range suite). B, Convolute-zoned Jurassic-age rims of 09RAYMC031A (Klinkit assemblage) bordering oscillatory-zoned Devonian cores. C, Typical zircon of the Reid Lakes batholith, showing moderate abundance of inclusions (09RAYJR094A). D, Zircon with a Devonian core mantled by igneous Permian zircon from a metagranodiorite of the Sulphur Creek suite (09RAYJR177A). E, Permian zircon from a metamonzogranite (09RAYJR178A) belonging to the Sulphur Creek suite; note the Jurassic-aged recrystallization in the eastern quadrant of the grain. F, Pennsylvanian-aged cores bounded by Jurassic mantles of the Aishihik suite (09RAYMC123A).]()
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Journal Article
Hot-side-up aureole in southwest Yukon and limits on terrane assembly of the northern Canadian Cordillera Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 01 May 1995
Geology (1995) 23 (5): 419–422.
...Stephen T. Johnston; Philippe Erdmer Abstract Near Aishihik Lake in southwest Yukon, Canada, Paleozoic and older pericratonic metamorphic rocks of the Nisling terrane are overlain by foliated granodiorite of the Aishihik batholith (186.0 ± 2.8 Ma), part of the Lower Jurassic Aishihik plutonic suite...
Journal Article
Paleozoic and Mesozoic rocks of Stikinia exposed in northwestern British Columbia: Implications for correlations in the northern Cordillera Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 01 November 1997
GSA Bulletin (1997) 109 (11): 1402–1420.
...–Yukon border, and possibly farther. The Boundary Ranges suite, and therefore the Stikine assemblage, are also tentatively correlated with parts of the Yukon-Tanana terrane in Yukon (Aishihik Lake area), parts of the Taku terrane in southeast Alaska, and undivided metamorphic rocks in west-central...
Image
![Map of the Northern Cordilleran terranes after Colpron and Nelson [135]. The locations of metamorphic studies compiled in Table 1 are indicated by circled numbers: 1—Stewart River [24, 96]; 2—Klondike district, McQuesten, and Australia Mountains [25–28]; 3—Aishihik Lake [98]; 4—Southwest Yukon [97]; 5—Last Peak [19]; 6—Saint-Cyr klippe [119]; 7— Faro [21]; 8—Finlayson Lake district [20, 23, 27]; 9—Big Salmon Complex [22]; 10—Atlin Lake [7]; 11—Eclogite Ridge [30]. Atlin Lake area (#10) is targeted by this research. BC: British Columbia; NA: North America; NWT: Northwest Territories.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/lithosphere/2022/1/10.2113_2022_7708357/4/s_7708357.fig.001.jpeg?Expires=2147483647&Signature=axWP3e5fRUCRuiCB2n9y~zIx4Ekvln3ldT2ixuNp6Bi97E2bxzY~1FLWVru~pg4LbLJ~EEQcJC9LhTVpSZe4AVmMxfwRsWTbaT8lIP3~M-eRMK27D8ylvbipRy8rn79dmRbmdITTl-o6X~79X4c7XS7vMos3rKPoScDlaF7RcHCDALupekO9sY1WhN7h3gkPtE227R6o1-wVNDp1eSk7eLt8j7LAgO2z-0Gj0wNvnOCZ641ADTNSd~daF5X3DbbqkhAT71ujt3UuZWTxIF9IU8rnoxwPOx5SNnRiGGQeR~Y82LkOPnVS3zAplJYgL0RFwo3mOT9NMF-Cb0rt89j3nA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Map of the Northern Cordilleran terranes after Colpron and Nelson [ 135 ]. ... Open Access
in 150 Myr of Episodic Metamorphism Recorded in the Yukon-Tanana Terrane, Northern Canadian Cordillera: Evidence from Monazite and Xenotime Petrochronology
> Lithosphere
Published: 27 April 2022
Figure 1 Map of the Northern Cordilleran terranes after Colpron and Nelson [ 135 ]. The locations of metamorphic studies compiled in Table 1 are indicated by circled numbers: 1—Stewart River [ 24 , 96 ]; 2—Klondike district, McQuesten, and Australia Mountains [ 25 – 28 ]; 3—Aishihik Lake [ 98
Journal Article
Thermochronology of the Yukon-Tanana Terrane, West-Central Yukon: Evidence for Jurassic Extension and Exhumation in the Northern Canadian Cordillera Available to Purchase
Journal: The Journal of Geology
Publisher: The University of Chicago Press
Published: 01 July 2013
The Journal of Geology (2013) 121 (4): 371–400.
...-feldspar augen. E , Highly fissile metarhyodacite of the Klinkit assemblage. F , Typical monzogranite of the Reid Lakes complex showing k-feldspar phenocrysts and smoky gray quartz. G , Polymict volcaniclastic breccia of the Reid Lakes complex. H , Photomicrograph of monzogranite of the Aishihik suite...
FIGURES
Includes: Supplemental Content
Journal Article
Igneous and metaigneous age constraints for the Aishihik Metamorphic suite, southwest Yukon Free
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 01 November 1996
Canadian Journal of Earth Sciences (1996) 33 (11): 1543–1555.
.... The batholith and metamorphic suite were intruded discordant, high-level (<6 km depth) plutons of the Long Lake plutonic suite, which crystallized at Ma. These data, together with cooling ages, require rapid exhumation of the Aishihik metamorphic suite at about 186 Ma. Exhumation coincided...
Journal Article
Holocene environmental history of the Aishihik Region, Yukon, Canada Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 13 December 2012
Canadian Journal of Earth Sciences (2013) 50 (4): 397–405.
... through the Holocene. The study was motivated by observations of low water levels in small lakes and ponds along the Aishihik Road to the east of Aishihik Lake, suggesting reduced water levels regionally in the past decades, an observation confirmed by local residents. However, lakes in the Shakwak Trench...
FIGURES
Image
Regional Bouguer gravity field in the study area. Batholiths that correlate... Available to Purchase
in Crustal structure across the northern Cordillera, Yukon Territory, from seismic wide-angle studies: Omineca Belt to Intermontane Belt
> Canadian Journal of Earth Sciences
Published: 23 September 2005
Fig. 10. Regional Bouguer gravity field in the study area. Batholiths that correlate with negative gravity anomalies include Aishihik (ASB), Cassiar (CB), Quiet Lake (QL), Nisling (NS), and Mount Billings (MB).
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A , Ages of samples dated relative to their SW-NE position from the Willow ... Available to Purchase
in Thermochronology of the Yukon-Tanana Terrane, West-Central Yukon: Evidence for Jurassic Extension and Exhumation in the Northern Canadian Cordillera
> The Journal of Geology
Published: 01 July 2013
in the Yukon-Tanana Terrane (YTT) at the far SW end of the diagram are from the Aishihik Suite. Note the different low-temperature cooling histories of the Reid Lake Complex (RLC) as recorded by the volcaniclastic edifice versus the deeper plutonic portion. The horizontal gray bars illustrate the general age
Journal Article
A Cretaceous back-arc basin in the Coast Belt of the northern Canadian Cordillera: evidence from geochemical and neodymium isotope characteristics of the Kluane metamorphic assemblage, southwest Yukon Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 18 December 2000
Canadian Journal of Earth Sciences (2001) 38 (1): 91–103.
... – 82 . Johnston S.T. Timmerman J.R. 1994 . Geology of the Aishihik Lake and Hopkins Lake map areas (115 H6/7), southwestern Yukon . In Yukon exploration and geology 1993 . Edited by Morison S.R. . Indian and Northern Affairs Canada , Exploration and Geological Services...
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Journal Article
The record of Glacial Lake Champagne in Kusawa Lake, southwestern Yukon Territory Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 09 February 2006
Canadian Journal of Earth Sciences (2005) 42 (12): 2127–2140.
... of the region. These include water bodies at Kluane Lake ( Bostock 1952 ); at Aishihik, Sekulmun, and Canyon lakes and in the valley of the Aishihik River ( Hughes 1990 ); and along the Yukon River near Whitehorse and extending south through Marsh, Tagish, and Bennett lakes, including parts of their tributaries...
FIGURES
Journal Article
Seismic and gravity constraints on the crustal architecture of the Intermontane terranes, central Yukon Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 21 April 2017
Canadian Journal of Earth Sciences (2017) 54 (7): 798–811.
... Intermontane Belt, British Columbia . Canadian Journal of Earth Sciences , 51 ( 4 ): 393 – 406 . 10.1139/cjes-2013-0142 . Colpron, M. ( Compiler ). 2011. Geological compilation of Whitehorse trough - Whitehorse (105D), Lake Laberge (105E), and part of Carmacks (115I), Glenlyon (105L), Aishihik Lake...
FIGURES
Image
Representative lithotypes in the McQuesten area. A , Psammitic schist of t... Available to Purchase
in Thermochronology of the Yukon-Tanana Terrane, West-Central Yukon: Evidence for Jurassic Extension and Exhumation in the Northern Canadian Cordillera
> The Journal of Geology
Published: 01 July 2013
, Polymict volcaniclastic breccia of the Reid Lakes complex. H , Photomicrograph of monzogranite of the Aishihik suite, showing altered feldspar, minor chlorite after biotite, and possible magmatic epidote. I , Photomicrograph of high-strain component of the Reid Lakes complex. Note the high degree
Image
SEM cathodoluminescence images of representative zircon for samples dated b... Available to Purchase
in Thermochronology of the Yukon-Tanana Terrane, West-Central Yukon: Evidence for Jurassic Extension and Exhumation in the Northern Canadian Cordillera
> The Journal of Geology
Published: 01 July 2013
) bordering oscillatory-zoned Devonian cores. C , Typical zircon of the Reid Lakes batholith, showing moderate abundance of inclusions (09RAYJR094A). D , Zircon with a Devonian core mantled by igneous Permian zircon from a metagranodiorite of the Sulphur Creek suite (09RAYJR177A). E , Permian zircon from
Journal Article
Protolith of ultramafic rocks in the Kluane Schist, Yukon, and implications for arc collisions in the northern Cordillera Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 01 May 2015
Canadian Journal of Earth Sciences (2015) 52 (7): 431–443.
.../0016-7037(95)00239-V . Stanley, B. 2012. Structural geology and geochronology of the Kluane Schist, southwestern Yukon Territory. M.Sc. thesis, University of Waterloo, Waterloo, Ont. 112 p. Tempelman-Kluit, D. 1974. Reconaissance geology of Aishihik Lake, Snag and part of Stewart River map-areas...
FIGURES
Journal Article
Long-term nivation rates, Cathedral Massif, northwestern British Columbia Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 13 April 2020
Canadian Journal of Earth Sciences (2020) 57 (11): 1305–1311.
.... In National Atlas of Canada . 5th ed. Natural Resources Canada, MCR Series No. 4177 . doi: 10.4095/294672 . Hughes , O.L. 1990 . Surficial geology and geomorphology, Aishihik Lake, Yukon Territory. Geological Survey of Canada, Paper, No. 87-29 . 23 pp. doi: 10.4095/128040 . Jones , V.K...
FIGURES
Journal Article
Development of the Whitehorse trough as a strike-slip basin during Early to Middle Jurassic arc-continent collision in the Canadian Cordillera Open Access
Journal: Geosphere
Publisher: Geological Society of America
Published: 11 August 2022
Geosphere (2022) 18 (5): 1538–1562.
.../10.1130/G32945.1 . Clark , A.D. , 2017 , Tectonometamorphic History of Mid-Crustal Rocks at Aishihik Lake, Southwest Yukon [ MSc thesis ]: Burnaby, British Columbia, Canada , Simon Fraser University , 153 p. Cohen , K.M. , Finney , S.C. , Gibbard , P.L. , and Fan , J.-X...
FIGURES
Journal Article
150 Myr of Episodic Metamorphism Recorded in the Yukon-Tanana Terrane, Northern Canadian Cordillera: Evidence from Monazite and Xenotime Petrochronology Open Access
Journal: Lithosphere
Publisher: GSW
Published: 27 April 2022
Lithosphere (2022) 2022 (1): 7708357.
...Figure 1 Map of the Northern Cordilleran terranes after Colpron and Nelson [ 135 ]. The locations of metamorphic studies compiled in Table 1 are indicated by circled numbers: 1—Stewart River [ 24 , 96 ]; 2—Klondike district, McQuesten, and Australia Mountains [ 25 – 28 ]; 3—Aishihik Lake [ 98...
FIGURES
Includes: Supplemental Content
Journal Article
Seismic and geological constraints on the structure and hydrocarbon potential of the northern Whitehorse trough, Yukon, Canada Available to Purchase
Publisher: Canadian Society of Petroleum Geologists
Published: 01 December 2012
Bulletin of Canadian Petroleum Geology (2012) 60 (4): 239–255.
... – 1184 . Colpron M . (comp.) 2011 . Geological compilation of Whitehorse trough - Whitehorse (105D), Lake Laberge (105E), and part of Carmacks (115I), Glenlyon (105L), Aishihik Lake (115H), Quiet Lake (105F) and Teslin (105C) . Yukon Geological Survey, Geoscience Map 2011-1 , 1:250 000...
FIGURES
Journal Article
Crustal structure across the northern Cordillera, Yukon Territory, from seismic wide-angle studies: Omineca Belt to Intermontane Belt Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 23 September 2005
Canadian Journal of Earth Sciences (2005) 42 (6): 1187–1203.
...Fig. 10. Regional Bouguer gravity field in the study area. Batholiths that correlate with negative gravity anomalies include Aishihik (ASB), Cassiar (CB), Quiet Lake (QL), Nisling (NS), and Mount Billings (MB). ...
FIGURES
Journal Article
Diamond in the Atlin–Nakina region, British Columbia: insights from heavy minerals in stream sediments Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 09 February 2006
Canadian Journal of Earth Sciences (2005) 42 (12): 2161–2171.
... and Surprise Lake suites intruded the Atlin–Nakina region at 172 and at 84 Ma, respectively ( Mihalynuk 1997 ). An Eocene (55 Ma) continental arc built upon the former rocks is represented by bimodal and coeval volcanic and hypabyssal intrusives of the Sloko Group to the south and west of Atlin ( Aitken 1959...
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