Fig. 9. Axial ancestral Rio Grande deposits of the Totavi Lentil. Top photograph shows typical coarse-grained deposits made up of subrounded silicic to intermediate volcanic rocks and rounded Precambrian quartzite, granite, and pegmatite. Middle photograph shows unconsolidated, cross-bedded, arkosic sands. The bottom photograph is a close-up view of well-rounded, clast- and matrix-supported cobbles and gravels. Photographs taken at type locality near Totavi.