GEOSCAN Search Results: Fastlink


TitleMineralogical investigations of Canadian till and lake- and stream-sediment reference materials: part 1. Standardized X-ray diffraction and scanning electron microscope methods
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorPercival, J BORCID logo; Hunt, P; Wygergangs, M
SourceGeological Survey of Canada, Current Research (Online) no. 2001-E9, 2001, 20 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
Illustrationsgraphs; photomicrographs; tables
ProgramMetals in the Environment (MITE)
Released2001 08 01
AbstractReference materials are used in geochemical studies as quality control in chemical analyses, and in mineralogical analyses for identification of unknowns and modal proportions. In this Metals in the Environment (MITE) project, the mineralogy of twelve geochemical reference materials were evaluated through X-ray diffraction and scanning electron microscope analyses. The reference materials are derived from soil, till, and lake and stream sediments, and mineralogical analyses are based on the bulk sample and the clay-sized fraction. The effect of a pretreatment to remove X-ray amorphous organic matter from the clay-sized fraction prior to semiquantitative X-ray diffraction analyses was examined, and ways to assess the amount of this material in a sample were summarized through a literature review. In addition, the resolution of scanning electron microscope images of clay-sized materials using carbon and gold coatings were compared. A standardized procedure for mineralogical characterization of soil, till, and sediment materials is presented.

Date modified: