Fig. 3From: Quaternary deposits: concept for a stratigraphic classification and nomenclature—an example from northern SwitzerlandRelationship between lithostratigraphic units (L1–L3, grey areas) and morphostratigraphic units (M1–M4), using the example of a hypothetical section through a succession of gravel terraces. The grey areas mark different sediment bodies constituting lithostratigraphic units, and L1–L3 denote their outcrops. Morphostratigraphic units are characterised by their surface and topographic positions. Morphostratigraphic unit M4 was formed solely by erosion and therefore has no lithostratigraphic equivalentBack to article page