Figures & data
Figure 1. Location of the study area and their location in San Juan province, Argentina. Left: Main geological structures and geomorphological units of the province of San Juan. Right: Landsat TM Image, combination of bands 7, 4 and 1.
Figure 2. (a) First-level alluvial fan covered with desert pavement; (b) Second-level glacis truncates rocks of Mogna formation and is covered with gravel; (c) First-level glacis truncates rocks of Albarracín formation; (d) Matagusanos playa lake, flow direction to the east, arrows indicate headward erosion.
Figure 3. From the first to the eighth alluvial levels, the desert varnish cover of the deposits decreases in intensity, accompanied by an increase in the vegetation cover and clasts size heterogeneity.
Supplemental material
