Fig. 6.7. Rare preservation of a cutbank in multistory
sandstone sheets fo rmed by flash-flood sedimentation in
an arid environment. The channel fill consists mainly of
lithofacies Sh with numerous low-angle internal thirdorder erosion surfaces. Kayenta Formation (Jurassic), Arizona
Fig. 6.8. Close-up of cutbank illustrated in Fig. 6.7. Note blocks of siltstone on the cutbank that have been eroded from
the siltstone bed at the upper left. Kayenta Formation (Jurassic), Arizona