Pisarska-Jamroży, MałgorzataKossowski, TomaszJamroży, Jerzy2011-12-282011-12-282011Geologos, 2011, 17, 4, s. 221-226.1426-8981http://hdl.handle.net/10593/1656The 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.enGrain-size distributionPlanimetric analysisCoarse-grained sedimentsArtykuł