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TitleBedrock geology, Klaza River area, Yukon
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorRyan, J J; Israel, S; Williams, S P; Parsons, A JORCID logo; Hayward, NORCID logo
SourceGeological Survey of Canada, Canadian Geoscience Map 376, 2018, 1 sheet, Open Access logo Open Access
PublisherNatural Resources Canada
Maps1 map
Map Info.geological, bedrock geology, 1:100,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 7 (NAD83)
Mediaon-line; digital
RelatedNRCan photo(s) in this publication
File formatreadme
File formatpdf (Adobe® Reader®); rtf; gdb (ESRI® ArcGIS(TM) v.10.x); shp (ESRI® ArcGIS(TM) v.10.x); xml (ESRI® ArcGIS(TM) v.10.x); mxd (ESRI® ArcGIS(TM) v.10.x); tif
NTS115I/04; 115I/05; 115J/09; 115J/10; 115J/15; 115J/16
AreaKlaza River
Lat/Long WENS-139.0000 -137.5000 62.3667 62.0000
Subjectsregional geology; stratigraphy; structural geology; economic geology; geochronology; geophysics; bedrock geology; structural features; faults; folds; folding; joints; fractures; bedding planes; lithology; metamorphic rocks; schists; phyllites; quartzites; psammites; metasedimentary rocks; marbles; amphibolites; igneous rocks; volcanic rocks; rhyolites; rhyodacites; basalts; andesites; dacites; lava flows; intrusive rocks; granodiorites; monzonites; monzo-granites; granites; tonalites; diorites; gabbros; monzodiorites; pegmatites; diabases; metagabbros; ultramafic rocks; harzburgites; dunites; orthopyroxenites; serpentinites; intrusions; dykes; sills; plutons; batholiths; textures; foliation; gneissosity; schistosity; crenulation foliation; lineations; cleavage; metamorphic facies; mineral potential; epithermal deposits; mineral occurrences; radiometric dates; uranium thorium dates; zircon dates; argon argon dates; geophysical interpretations; magnetic interpretations; total field magnetics; Paleogene; Yukon-Tanana Terrane; Rhyolite Creek Complex; Ruby Range Suite; Carmacks Group; Casino Suite; Mount Nansen Group; Whitehorse Suite; Long Lake Suite; Stikine Suite; Schist Creek Complex; Sulphur Creek Suite; Stenvenson Ridge Schist; Snowcap Assemblage; geological contacts; Phanerozoic; Cenozoic; Tertiary; Mesozoic; Cretaceous; Jurassic; Triassic; Paleozoic; Permian; Carboniferous; Mississippian; Devonian
Illustrationslocation maps; index maps; geoscientific sketch maps; tables; photographs
ProgramGEM2: Geo-mapping for Energy and Minerals Western Cordillera, Redefinition of crustal blocks
Released2018 12 20
AbstractThe Klaza River area is underlain dominantly by Paleozoic rocks of Yukon Tanana terrane, and mid-Cretaceous to Paleogene rocks. The geology of the central map area is dominated by metasedimentary rocks and lesser amphibolite layers of the pre-Late Devonian Snowcap assemblage, with Stevenson Ridge schist to the west. Permian Sulphur Creek suite forms sparse intrusions of K-feldspar augen and non-porphyritic granite. The northern geology is dominated by the mid-Cretaceous Dawson Range batholith and Mount Nansen Group volcanic rocks, which are overlain by upper Cretaceous Carmacks Group volcanic rocks. Mid-Cretaceous Maloney Creek batholith dominates the southeast part of the map area. Late Cretaceous Casino suite hypabyssal rocks occur sparsely to the east, and have known porphyry and epithermal mineral potential (e.g. Klaza deposit). Paleogene volcanic and hypabyssal rocks are scattered across the map, predominantly in the west.
Summary(Plain Language Summary, not published)
Western Yukon is host to numerous mineral deposits that contain economically important metals such as copper and gold. The distribution of these mineral deposits is controlled by the underlying geology, including rock type and deformation history. This CGM map presents a new 1:100 000 scale geological map of the Klaza River area of SW Yukon that is based on regional mapping in summer 2016, and integration of modern geophysical, geochemical and age data. The map identifies distinct groups of rocks that share common origins and histories, some of which have potential to host specific types of mineral deposits. This map represents significant improvement on the understanding of regional geology and mineral deposits in western Yukon.

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