caa a22 4500 386389276 CHVBK 20180307112109.0 cr unu---uuuuu 161130s1989 xx s 000 0 eng 10.1017/S0269727000010915 doi S0269727000010915 pii (NATIONALLICENCE)cambridge-10.1017/S0269727000010915 Barndorff-Nielsen O. E. Department of Theoretical Statistics, Institute of Mathematics, Aarhus University, DK-8000 Aarhus C, Denmark Sorting, texture and structure [Elektronische Daten] [O. E. Barndorff-Nielsen] Sands are sorted by the actions of air and water. A mathematical-physical model for the ensuing spatial and temporal variations in the size distributions of the sand grains is outlined. A crucial element in aeolian sorting and transport of sand is the process that takes place when a saltating grain impinges on the sand surface. This raises the problem of describing the texture of sand surfaces. Some initial empirical and mathematical findings concerning this problem are discussed. A closely connected question is that of how the grains in a sand deposit are packed and how this relates to the size distribution. Voronoi tesselations in combination with random point processes seem to offer one useful approach to the question. Copyright © Royal Society of Edinburgh 1989 Physics and Physical Geography nationallicence Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences Royal Society of Edinburgh Scotland Foundation 96(1989), 167-179 0269-7270 96<167 1989 96 PRB https://doi.org/10.1017/S0269727000010915 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0269727000010915 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Barndorff-Nielsen O. E. Department of Theoretical Statistics, Institute of Mathematics, Aarhus University, DK-8000 Aarhus C, Denmark NATIONALLICENCE 773 0- Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences Royal Society of Edinburgh Scotland Foundation 96(1989), 167-179 0269-7270 96<167 1989 96 PRB CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge