00000nam 2200000za 4500 9.836434 CaOODSP 20251031142447 cr ||||||||||| 170509s2017 oncabd ob f000 0 eng d CaOODSP eng n-cn-on n-us-ny M183-2/8178E-PDF Seismic study of ridges on the lake floor in Rochester Basin, eastern Lake Ontario, New York [electronic resource] : evidence for till composition / K.C. Coflin ... [et al.]. [Ottawa] : Natural Resources Canada, 2017. 1 p. : charts, ill. (some col.), col. maps Geological Survey of Canada, open file ; 8178 Caption title. Includes bibliographical references. "The seismic reflection data analysed in this study were collected in Rochester Basin in eastern Lake Ontario in 1994. The data subset shown here provides a cross section of a number of ridges on the lake floor. Previous authors interpreted them as drumlins or as the result of bedrock faulting. Interpretation of the unprocessed seismic data could, erroneously, indicate that faulting occurred in the area. This study was conducted using processed seismic data to resolve the base of the ridges and to determine if faulting has occurred to cause their formation. Reflectors under the ridges were found to be continuous with no evidence of faulting. The analysis supports the interpretation that the ridges are drumlins”--Summary provided by publisher. gccst Lakes gccst Geomorphology gccst Seismology gccst Surficial geology Coflin, Kevin C. (Kevin Carroll), 1955- Canada. Natural Resources Canada. Geological Survey of Canada. Open file (Geological Survey of Canada) 8178 (CaOODSP)9.506878 PDF 5.38 MB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M183-2/M183-2-8178-eng.pdf 299647