00000nem 2200000za 4500 9.569640 CaOODSP 20230131161133 m go c f cr ||||||||||| 150406s2011 onc bd a fo 0 eng d 978-1-100-18474-6 CaOODSP eng eng fre n-cn-bc M183-1/10-2011E-PDF McMechan, Margaret E. (Margaret Evaline), 1953- Geology, Mount Abruzzi, British Columbia [electronic resource] / [by] M.E. McMechan. Scale 1:50,000 [Ottawa?] : Natural Resources Canada, c2011. 1 map : col. Canadian geoscience map ; No. 10 Includes bibliographical references. "Mount Abruzzi map area (NTS 82-J/06, 1:50 000 scale) straddles portions of the Front Ranges and Main Ranges subdivisions of the southern Canadian Rocky Mountains. Folded Devonian, Mississippian, Pennsylvanian, Permian, and Triassic carbonate and clastic strata of the Bourgeau thrust sheet are thrust over Lower Cretaceous foreland basin clastic strata in the Front Ranges. Mississippi Valley-type alteration occurs locally in southwesternmost exposures of Upper Devonian Palliser carbonate. A thick basinal succession of folded and cleaved Middle Cambrian to Lower Ordovician clastic and carbonate strata, and intensely folded Middle and Upper Ordovician and Middle Devonian, predominantly carbonate strata characterize the Main Ranges. No large fault separates the Main Ranges from the Front Ranges. The Main Ranges reflect a south-plunging culmination in the underlying Bourgeau Thrust. Sixteen Late Ordovician to Early Devonian, mafic diatreme breccia pipes occur in the northeastern part of the Main Ranges in the map area"--Abstract. Includes abstract in French. 12-09 2012-03-02 gccst Geological maps gccst Geomorphology gccst Surficial geology Canada. Natural Resources Canada. Geological Survey of Canada. Canadian geoscience map ; No. 10. (CaOODSP)9.506260 PDF 20874 KB https://publications.gc.ca/collections/collection_2012/rncan-nrcan/M183-1-10-2011-eng.pdf HTML N/A https://doi.org/10.4095/288142 288142