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TitleMineralogical investigations of Canadian till and lake- and stream-sediment reference materials: part 2. A comparison of four methods to determine semiquantitative mineralogy
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorPercival, J BORCID logo; Knight, R DORCID logo; Hunt, P
SourceGeological Survey of Canada, Current Research (Online) no. 2001-E10, 2001, 22 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Mediapaper; on-line; digital; CD-ROM
RelatedThis publication is contained in Current Research 2001, summer release
File formatpdf
Subjectsmineralogy; geochemistry; till analyses; till samples; lake sediments; stream sediment samples; scanning electron microscope analyses; x-ray diffraction analyses; x-ray diffraction; clays
Illustrationsphotomicrographs; tables
ProgramMetals in the Environment (MITE)
Released2001 08 01
AbstractFour methods to determine modal mineralogy were compared for three reference materials, STSD-1, LKSD-4, and TILL-1. These methods include ModAn, a normative calculation based on bulk chemical and mineralogical composition, X-ray diffraction analysis, and two scanning electron microscope techniques: feature image analysis and X-ray mapping. Results from each of the methods are reasonable and comparable; however, the choice of method must take into consideration their limitations such as need of bulk composition and mineralogy data to run ModAn; a detection limit of 2 3% of a mineral for XRD; automated X-ray beam positioning in feature image analysis; and extended processing time for X-ray mapping.

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