Quaternary Stratigraphy of the La Playa Archaeological Site (SON F:10:3), Northern Sonora, Mexico - Reconstructing Human-Landscape Interactions: Interpreting Desert and Fluvial Environments - page 9

Fig. 4 Composite stratigraphic section of the La Playa Pleistocene and Holocene stratigraphy.
Width of the stratigraphic section corresponds to sediment grain size. Grain size abbreviations on
the section are as follows: CL clay, ST silt, VF very fine sand, F fine sand, M medium sand,
C coarse sand, and G gravel