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TitleGeological Survey of Canada till-sampling and analytical protocols: from field to archive, 2020 update
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorMcClenaghan, M BORCID logo; Spirito, W A; Plouffe, AORCID logo; McMartin, IORCID logo; Campbell, J E; Paulen, R CORCID logo; Garrett, R G; Hall, G E M; Pelchat, P; Gauthier, M S
SourceGeological Survey of Canada, Open File 8591, 2020, 73 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatreadme
File formatpdf; rtf; docx (Microsoft® Word®)
Subjectssurficial geology/geomorphology; economic geology; environmental geology; geochemistry; mineralogy; Science and Technology; glacial deposits; tills; till samples; till analyses; stream sediment samples; analytical methods; field methods; sampling methods; sample preparation; sample storage; geochemical analyses; mineralogical analyses; provenance; mineral exploration; exploration methods; environmental studies; geochemical surveys; glacial history; glaciation; ice flow; transport mechanisms; sediment dispersal; dispersal patterns; models; weathering; soils; Quality control; Archives; ice-flow directions; ice streams; Equipment; Metadata; alluvial sediments; Phanerozoic; Cenozoic; Quaternary
Illustrationstables; photographs; schematic cross-sections; profiles; 3-D models; schematic representations; geoscientific sketch maps; digital elevation models; location maps; photomicrographs; schematic diagrams; flow charts
ProgramGEM2: Geo-mapping for Energy and Minerals GEM Synthesis
Released2020 10 30; 2021 01 05
AbstractFor more than 50 years, researchers at the Geological Survey of Canada (GSC) have developed, tested, and refined till geochemical and indicator mineral methods as applied to mineral exploration, provenance studies, and environmental research in glaciated terrain across Canada. This cumulative experience and knowledge were used to produce and publish the GSC's first comprehensive field and laboratory methods protocol manual for till geochemical and mineralogical surveys in 2011. The publication being presented here provides an update and augmentation of this earlier version and presents the major concepts of till as a sample medium, glacial dispersal, and field and laboratory procedures.
These protocols are used by the GSC to guide till sample collection, sample processing, geochemical and indicator mineral analyses, implementation of quality assurance/quality control (QA/QC) procedures, archiving methods, and data reporting by the Geological Survey of Canada. Using consistent sample media and making diligent field notes and observations are also considered fundamental to the protocols, and are presented herein. The protocols will be of value to provincial/territorial government geological agencies, the mineral exploration industry, and academia and we hope they will benefit from the use of this manual.
Adopting a common set of protocols allows the GSC, other researchers, and exploration geologists to directly compare till geochemical and indicator mineral data sets from various parts of Canada and ensures proper minimum levels of QA/QC for all till geochemical and mineralogical data.
Summary(Plain Language Summary, not published)
This report is an update and expansion of GSC protocols for till samples first published in OF 6850 in 2011. The protocols cover the collection, analysis and reporting of till geochemical and mineralogical data. The protocols were established as part of the GEM Program and used by all scientists to provide consistent and comparable data between GEM map areas across Canada.

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