Figure 16. Upward-fining of the polymictic conglomerates at the base of Subunit IIIB. A. Very poorly sorted conglomerate with a granule and coarse sand matrix (Interval 149-897D-6R-2, 50-70 cm). B. Partially disorganized, poorly sorted granules and pebbles set in a granule-sand matrix; some parallel orientation of the larger clasts is discernible (Interval 149-897C-62R-3, 45-60 cm). C. Coarse sand and granules show intervals of inclined layering, which may be current structures or, alternatively, have been produced by slight rotation of core biscuits (Interval 149-897C-62R-3, 25-40 cm).

Figure 16. Upward-fining of the polymictic conglomerates at the base of Subunit IIIB. A. Very poorly sorted conglomerate with a granule and coarse sand matrix (Interval 149-897D-6R-2, 50-70 cm). B. Partially disorganized, poorly sorted granules and pebbles set in a granule-sand matrix; some parallel orientation of the larger clasts is discernible (Interval 149-897C-62R-3, 45-60 cm). C. Coarse sand and granules show intervals of inclined layering, which may be current structures or, alternatively, have been produced by slight rotation of core biscuits (Interval 149-897C-62R-3, 25-40 cm).