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Modeling Fine-Scale Geological Heterogeneity : Examples of Sand Lenses in Tills

Kessler, Timo Christian ; Comunian, Alessandro ; Oriani, Fabio ; Renard, Philippe ; Nilsson, Bertel ; Klint, Knud Erik ; Bjerg, Poul Løgstrup

In: Ground Water, 2013, vol. 51, no. 5, p. 692-705

Sand lenses at various spatial scales are recognized to add heterogeneity to glacial sediments. They have high hydraulic conductivities relative to the surrounding till matrix and may affect the advective transport of water and contaminants in clayey till settings. Sand lenses were investigated on till outcrops producing binary images of geological cross-sections capturing the size, shape and...