12 A mix of ripples on E W aligned E-W PC approx to N S interf. ripples step-wise ripples underlying current ripples. iii) coarse v. coarse SS with 10-20cm illstone partings SS max 60cm thick w some trough cross sets orien to NE good p c. air SS Yellow tan -> grey. Silstone is medium to dark grey. silstone/SS interbeds. Some trace fossil types as vent escape structures two SS. Some interference ripples upper surfaces fm wave refraction. Slide photos of the 3 SW units the bedding surfaces coarse illstone CKLE#1