QUANTIFICATION OF SOIL CALCIUM CARBONATES BY STAINING AND IMAGE ANALYSIS
- 1 August 1989
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Soil Science
- Vol. 69 (3) , 677-682
- https://doi.org/10.4141/cjss89-066
Abstract
Quantification of calcium carbonates in a light-colored matrix or disseminated calcium carbonates cannot be obtained directly from impregnated blocks by image analysis. A method that combined staining by alizarin red-S with digital image analysis made it possible to identify and quantify soil calcium carbonates including the disseminated form in thin sections. Best results were obtained under reflected light using a tungsten lamp source. Photographic filters did not improve the image quality of stained calcium carbonates. Key words: Image analysis, soil micromorphometryKeywords
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