00000nem 2200000za 4500 9.810712 CaOODSP 20230131161135 m go c f cr ||||||||||| 170208s2016 onca bd a fo 0 eng d 978-0-660-04531-3 CaOODSP eng eng fre n-cn-bc M183-1/276-2016E-PDF Bedrock geology, (glacio-) volcano within the Tuya Formation, at Kawdy Mountain, British Columbia [electronic resource] / [authors, M. Turnbull ... [et al.]]. Prelim. Scale 1:10 000 ; Universal Transverse Mercator, zone 9 (W 131°13’--W 131°07'/N 59°00'02"--N 58°57'20") [Ottawa] : Natural Resources Canada, c2016. 1 map. : col. + 1 map information document ([6] p.). Canadian geoscience map ; 276 Relief shown by contours. This record only includes the map and the “Map information document” in PDF, the complete data set with all the files in various formats is available for free download at http://geoscan.nrcan.gc.ca/ Includes bibliographical references. "This volcano, informally named Kima'Kho, is one of more than 30 Pleistocene volcanoes on the Tuya-Kawdy plateau of northern British Columbia that record interactions with the Cordilleran ice sheet. This basaltic glaciovolcano features deposits resulting from explosive and effusive eruptions at 1.9 Ma and hosts multiple passage zones (transition surfaces between subaqueous and subaerial deposits (Russell et al., 2013)). Lithofacies include explosive lapilli tuff cone-forming deposits dominating the southern flanks of the edifice, which are partially overlain to the north by lava-fed deltas comprising lavas and tuff-breccia. Late-stage intrusions are identified by geological field relationships and 40Ar/39Ar geochronology. Explosive and effusive deposits show textural and stratigraphical indicators that delineate 'passage zones'. Six prominent passage zones record depth fluctuations of about 160 m in the englacial lake. Based on estimates of maximum lake depths, the reconstructed minimum ice thickness is about 40 m"--Abstract. Includes abstract in French. gccst Geological maps gccst Geochronology gccst Petrology Turnbull, M. Canada. Natural Resources Canada. Geological Survey of Canada. Canadian geoscience map ; 276. (CaOODSP)9.506260 PDF 12.83 MB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M183-1-276-2016-eng.pdf Map PDF 601 KB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M183-1-276-2016-1-eng.pdf Map information document HTML N/A https://doi.org/10.4095/299109 GEOSCAN DOI 299109