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TitleRegional geochemical survey of earth materials in southern Ontario: a geochemical baseline for environmental and human health protection
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorSharpe, D RORCID logo; Klassen, R A; Russell, H A JORCID logo; Brennand, T A; Dexter, K; Logan, C EORCID logo; Stepner, D A J
SourceGeological Survey of Canada, Open File 8452, 2019, 38 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatreadme
File formatpdf (Adobe® Reader®); rtf; xlsx (Microsoft® Excel®); xls (Microsoft® Excel®)
NTS30; 31B; 31C; 31D; 31E; 31F; 31G; 31K; 31L; 40; 41A; 41B; 41G; 41H; 41I; 41J; 41K
Lat/Long WENS -85.0000 -74.2500 46.5000 41.5000
Subjectsgeochemistry; environmental geology; surficial geology/geomorphology; soils science; mineralogy; Nature and Environment; Health and Safety; geochemical surveys; geochemical analyses; mineralogical analyses; soils; soil horizons; glacial deposits; tills; sands; muds; soil geochemistry; till geochemistry; provenance; weathering; neutron activation analyses; x-ray fluorescence analyses; atomic absorption spectrometry; mass spectrometer analysis; sediment dispersal; geochemical dispersion; dispersal patterns; oxides; calcium oxide; lead; zinc; mercury; phosphorus; environmental controls; environmental impacts; bedrock geology; lithology; sedimentary rocks; carbonates; clastics; shales; metamorphic rocks; marbles; Archean; Canadian Shield; Grenville Province; Superior Province; St. Lawrence Lowlands; environmental baseline studies; Health protection; Risk assessment; glaciofluvial sediments; Environmental hazards; Phanerozoic; Cenozoic; Quaternary; Paleozoic; Devonian; Silurian; Ordovician; Cambrian; Precambrian; Proterozoic
Illustrationsgeoscientific sketch maps; schematic representations; plots; tables; photographs; frequency distribution diagrams; tables
ProgramGroundwater Geoscience Aquifer Assessment & support to mapping
Released2019 11 15
Summary(Plain Language Summary, not published)
This report presents geochemical data for earth materials collected as part of a regional, low-density geochemical survey (1 site/ 1600 km2) of southern Ontario. The survey provides empirical evidence for natural geochemical background and its variation in unconsolidated mineral particulate deposits. Data in this report support environmental and human health protection by showing geographic variation in relative geochemical hazard potential, and by providing a baseline for estimating levels of contaminant inputs. This report also examines the origins of geochemical variation in unconsolidated deposits in terms of bedrock provenance and mineralogy, surficial geology, weathering, and soil formation. Through that, the report demonstrates how geoscience contributes to the geochemical hazard models that support environmental and human health risk assessment.

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