00000nam 2200000za 4500 9.864698 CaOODSP 20251031142448 cr ||||||||||| 181114s2003 oncabdo ob f000 0 eng CaOODSP eng n-cn-on M183-2/3037E-PDF Seismostratigraphy of Quaternary sediments beneath Lake Simcoe, Ontario [electronic resource] : results of 1992 and 1993 expeditions of the MV J. Ross Mackay / B.J. Todd ... [et al.]. Ottawa : Natural Resources Canada, 2003. iii, 90, [15] p. : ill., maps, graphs, photographs + 1 photo album (54 p.) Open file ; 3037 This record only includes the Open File and photo album 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. "A marine geophysical survey program was conducted in Lake Simcoe, Ontario in September 1992, and May and June, 1993 as part of a program to better understand the lake bottom and the subbottom geology. This Open File report provides a seismostratigraphic framework for the ongoing environmental assessment of Lake Simcoe and of similar lakes, and to assess seismic hazards in southern Ontario. A 4 km by 4 km survey grid covered the lake, with more closely-spaced survey lines in Kempenfelt Bay and Cook’s Bay. High-resolution single- and multichannel seismic reflection profiling were used to delineate late- and post-glacial sedimentary strata, structures and lakefloor features. Acoustic basement is Ordovician sedimentary rock, overlain by three seismostratigraphic sequences within the unconsolidated sediments"--Abstract, p. iii. gccst Geology gccst Seismology gccst Lakes Todd, Brian J. (Brian Jeremy) Canada. Natural Resources Canada. Geological Survey of Canada. Open file (Geological Survey of Canada) 3037. (CaOODSP)9.506878 PDF 80.10 MB https://publications.gc.ca/collections/collection_2018/rncan-nrcan/m183-2/M183-2-3037-eng.pdf Report PDF 8.00 MB https://publications.gc.ca/collections/collection_2018/rncan-nrcan/m183-2/M183-2-3037-1-eng.pdf Photo album HTML N/A https://doi.org/10.4095/214292 GEOSCAN DOI