00000nem 2200000za 4500 9.568975 CaOODSP 20230131161132 m go c f cr ||||||||||| 150406s2011 onc bd a fo 0 eng d 978-1-100-17699-4 CaOODSP eng eng fre n-cn-bc M183-1/12-2011E-PDF McMechan, Margaret E. (Margaret Evaline), 1953- Geology, Tangle Peak, British Columbia [electronic resource] / Authors, M.E. McMechan and G.B. Leech. Scale 1:50,000 Ottawa : Natural Resources Canada, c2011. 1 map : col. Canadian geoscience map ; No. 12 Includes a legend. Includes bibliographical references. "Tangle 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"--Abstract. Includes abstract in French. 12-21 2012-05-25 gccst Geological maps gccst Geomorphology gccst Surficial geology Leech, G. B. Canada. Natural Resources Canada. Geological Survey of Canada. Canadian geoscience map ; No. 12. (CaOODSP)9.506260 PDF 20,014 KB https://publications.gc.ca/collections/collection_2012/rncan-nrcan/M183-1-12-2011-eng.pdf HTML N/A https://doi.org/10.4095/287454 287454