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TitleEarly growth of the last Cordilleran ice sheet deduced from glacio-isostatic depression in southwest British Columbia, Canada
AuthorClague, J J; Froese, D; Hutchinson, I; James, T SORCID logo; Simon, K M
SourceQuaternary Research (New York) vol. 63, 2005 p. 53-59,
Alt SeriesGeological Survey of Canada, Contribution Series 2003322
PublisherCambridge University Press (CUP)
Mediapaper; on-line; digital
File formatpdf (Adobe Acrobat Reader)
ProvinceBritish Columbia
NTS92B; 92C; 92F; 92G; 92J; 92K
Lat/Long WENS-126.0000 -122.0000 51.0000 48.0000
Subjectsgeneral geology; structural geology; sea level changes; paleo-sea levels; isostatic rebound; eustatic submergence; ice sheets; glaciation
Illustrationslocation maps; photographs; cross-sections, stratigraphic; tables
ProgramNSERC Natural Sciences and Engineering Research Council of Canada
ProgramSimon Fraser University, Funding Program
Released2017 01 20
AbstractRelative sea level at Vancouver, British Columbia rose from below the present datum about 30,000 cal yr B.P. to at least 18 m above sea level 28,000 cal yr B.P. In contrast, eustatic sea level in this interval was at least 85 m lower than at present. The difference in the local and eustatic sea-level positions is attributed to glacio-isostatic depression of the crust in the expanding forefield of the Cordilleran ice sheet during the initial phase of the Fraser Glaciation. Our findings suggest that about 1 km of ice was present in the northern Strait of Georgia 28,000 cal yr B.P., early during the Fraser Glaciation.

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