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TitleContour map of the sub-Quaternary bedrock surface, Strait of Georgia and Fraser Lowland
DownloadFree download (whole publication) (zip 139998 KB)
Author Hamilton, T S; Ricketts, B D
SourceGeology and geological hazards of the Vancouver region, southwestern British Columbia; by Monger, J W H (ed.); Geological Survey of Canada, Bulletin 481, 1994 p. 193-196; 1 CD-ROM, https://doi.org/10.4095/203250
Year1994
PublisherNatural Resources Canada
Documentserial
Lang.English
Mediapaper; CD-ROM
RelatedThis publication is contained in Monger, J W H; (1994). Geology and geological hazards of the Vancouver region, southwestern British Columbia, Geological Survey of Canada, Bulletin no. 481
ProvinceBritish Columbia
NTS92B/01; 92B/08; 92G/01; 92G/02; 92G/03; 92G/04; 92G/05; 92G/06; 92G/07; 92G/08
AreaVancouver; Fraser Lowland; Strait of Georgia
Lat/Long WENS-124.5000 -122.0000 49.5000 49.0000
Subjectssurficial geology/geomorphology; bedrock topography; subsidence; Neogene; Pleistocene; erosion; sediments; Cenozoic; Quaternary; Tertiary
Illustrationssketch maps
Released1995 02 01
AbstractThe sub-Quaternary bedrock surface beneath the Strait of Georgia and Fraser Lowland is depicted on a contour map. For the Strait of Georgia area, map construction is based on marine seismic surveys, whereas for the Fraser Lowland, the map is based on outcrop and limited data from boreholes. The morphology of the bedrock surface reflects two processes: probable Neogene tectonic subsidence, and Pleistocene glacial erosion. Unconsolidated Pleistocene sediments are 300-500 m thick beneath much of the Fraser delta and the Strait of Georgia, and up to 700 m thick in parts of the Fraser Valley.
GEOSCAN ID203250