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TitlePortable XRF chemostratigraphy of a paleo-glacial foreland basin, the Nanaimo Lowlands, Vancouver Island, British Columbia
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorKnight, R DORCID logo; Bednarski, J M; Grunsky, E; Russell, H A JORCID logo
SourceGeological Survey of Canada, Scientific Presentation 52, 2017, 1 sheet, Open Access logo Open Access
PublisherNatural Resources Canada
Mediaon-line; digital
RelatedThis publication is related to Portable XRF chemostratigraphy of a paleo-glacial foreland basin, the Nanaimo Lowlands, Vancouver Island
File formatpdf
ProvinceWestern offshore region; British Columbia
NTS92B; 92F; 92G
AreaStrait of Georgia; Puget Sound; Nanaimo Lowlands; Canada; United States of America
Lat/Long WENS-126.0000 -122.0000 50.0000 48.0000
Subjectssurficial geology/geomorphology; hydrogeology; geochemistry; stratigraphy; basin analyses; basins; groundwater; aquifers; groundwater resources; resource management; stratigraphic analyses; sedimentary facies; sedimentary environments; glacial deposits; tills; drift deposits; boreholes; grain size analyses; silts; clays; geochemical analyses; x-ray fluorescence; strontium; barium; iron; magnesium; statistical analyses; Pleistocene; Dashwood till; Cowichan Head Formation; Quadra sand; Vashon Drift; Capilano Sediments; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; stratigraphic columns; photographs; logs; plots; profiles
ProgramGroundwater Geoscience Aquifer Assessment & support to mapping
Released2017 02 21
Summary(Plain Language Summary, not published)
A relatively thick and extensive succession of late Pleistocene proglacial, glacial and interstadial sediments occurs in the Strait of Georgia in British Columbia (and Puget Sound in Washington. All of these units form either regional aquifers, or aquitards, hence understanding the spatial heterogeneity and lithochemistry are of high interest due to increasing groundwater issues in this area.To resolve this knowledge gap the Geological Survey of Canada in collaboration with the Regional District of Nanaimo, British Columbia, has completed a chemostratigraphic study of 2 boreholes (~130 m deep) approximately 20 km apart, using a portable X-ray fluorescence spectrometer and multivariate statistical methods.

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