Figure F14. Normal-graded, medium-bedded, silty sandstone bed (140.5-145 cm) displaying a lower parallel laminated interval (142.5-145 cm) followed by a climbing ripple-lamination interval (140.5-142 cm), in turn followed by parallel-laminated clayey siltstone that gradually becomes massive and finer grained toward the top. The dip of the bed is probably not primary, but instead is related to tectonic tilting (interval 180-1108B-20R-1, 130-145 cm).