| Title | Mineralogical investigations of Canadian till and lake- and stream-sediment reference materials: part 1. Standardized X-ray diffraction and scanning electron microscope methods |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Percival, J B ;
Hunt, P; Wygergangs, M |
| Source | Geological Survey of Canada, Current Research (Online) no. 2001-E9, 2001, 20 pages, https://doi.org/10.4095/212692  Open Access |
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| Year | 2001 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital; CD-ROM |
| Related | This publication is contained in Current Research 2001,
summer release |
| File format | pdf |
| Subjects | mineralogy; geochemistry; till analyses; till samples; lake sediments; stream sediment samples; scanning electron microscope analyses; x-ray diffraction analyses; x-ray diffraction; clays |
| Illustrations | graphs; photomicrographs; tables |
| Program | Metals in the Environment (MITE) |
| Released | 2001 08 01 |
| Abstract | Reference 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. |
| GEOSCAN ID | 212692 |
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