Adjustment coefficients for planimetric analysis of the granulometry of coarse-grained sediments
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Date
2011
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Wydawnictwo Naukowe UAM
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Abstract
The relationship between results from granulometric analyses of by sieving and by planimetry was investigated by numerical simulation of cubes filled with boulders, cobbles and pebbles. Cross-sections through the sediment were simulated and compared with photos of an actual outcrop wall. Volumes estimated on the basis of planimetric analysis using the cross-sections were compared with sieve analyses, thus allowing to determine adjustment coefficients. The coefficients for pebbles and cobbles have a small standard error, but are larger for boulders, which might be a consequence of too small areas formed by the cross-sections.
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Keywords
Grain-size distribution, Planimetric analysis, Coarse-grained sediments
Citation
Geologos, 2011, 17, 4, s. 221-226.
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ISBN
ISSN
1426-8981