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| Titel: |
Undersokning av kornbestånden hos sandiga sediment |
| Auteur: |
Hagerman, Tor H. |
| Verschenen in: |
GFF |
| Paginering: | Jaargang 94 (1972) nr. 1 pagina's 83-89 |
| Jaar: |
1972-03-31 |
| Inhoud: |
In order to extend the knowledge of the sandy sediments and to correlate such layers, the determination of the relative width of the grain projection is made. The method of making such micromeasurements and diagrams has earlier been published by the author (Hagerman, 1960). When dealing with material transported by water, the border conture of the plots of a given sediment converges towards a point located at the region of the coarsest grains. This point shows the ability of the transport medium to carry the grains even if the large grains have not been present. Now earlier methods are replaced by film scanning of the projected grain sample. Then a computer is used as described by Bengtsson and Kasche (in print). Sampling, mineral classification and digesting, disintergration, eventually sieving of the grains are treated. Finally disperging and photografic methods are described. The method is much faster when routine work is at hand and cheaper than the micromeasurements used earlier. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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