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TitleGeology, Tangle Peak, British Columbia
AuthorMcMechan, M E; Leech, G B
SourceGeological Survey of Canada, Canadian Geoscience Map 12, 2011, 1 sheet; 1 CD-ROM,
PublisherNatural Resources Canada
Maps1 map
Map Info.geological, bedrock geology, 1:50,000
ProjectionUniversal Transverse Mercator Projection, zone 11 (NAD83)
MediaCD-ROM; on-line; digital
RelatedThis publication is related to the following publications
File formatreadme
File formatpdf; rtf; xml; shp; html; JPEG2000
ProvinceBritish Columbia; Alberta
AreaTangle Peak
Lat/Long WENS-116.0000 -115.5000 50.7500 50.5000
Subjectsstratigraphy; structural geology; bedrock geology; structural features; sedimentary rocks; dolostones; limestones; argillites; siltstones; Cedared Formation; Burnais Formation; Beaverfoot Formation; McKay Group; Alberta River Sills; Cross River Sills; Tegart Formation; Mount Wilson Formation; Glenogle Formation; Ottertail Formation; Laussedat Formation; Lyell Formation; Sullivan Formation; Waterfowl Formation; Arctomys Formation; Eldon Formation; Pika Formation; Mount Docking Formation; Tokumm Formation; Stephen Formation; Cathedral Formation; Paleozoic; Ordovician; Silurian; Devonian; Cambrian
ProgramSouthern Cordillera TGI-3, Targeted Geoscience Initiative (TGI-3), 2005-2010
LinksMetadata - Métadonnées
Released2011 12 05
AbstractTangle Peak map area (NTS 82-J/12, 1:50 000 scale) straddles portions of the Main Ranges and Western Ranges subdivisions of the southern Canadian Rocky Mountains, from northeast to southwest. The Middle and Upper Cambrian Kickinghorse Rim, an abrupt westward facies change from competent platform and ramp carbonate units to thick basinal strata, divides the Main Ranges into eastern broadly folded and western penetratively deformed parts. Hydrothermal alteration localized immediately inboard of the Kickinghorse Rim produced magnesite in the Cross River area and zinc showings in the Albert River drainage. Tight and overturned, northeast-facing folds occur in basinal strata immediately west of the rim whereas, a regional southwest-facing, overturned fold occurs at the transition into the Western Ranges. Folded Cambrian to Middle Devonian strata cut by steep longitudinal and transverse faults characterize the Western Ranges. Thick breccia units occur along several faults. Middle Devonian gypsum deposits occur in the Windermere Creek area.