Newland Formation shales were deposited in comparatively shallow water, and those of the Prichard Formation in comparatively deep water.
Photos are low resolution for faster loading.
Click on the image to get a larger, high resolution picture. Material such as this may form lenses within gray dolomitic shales. One possible explanation could be that we started out with clay aggregates or rip-up clasts that traveled together with the sand grains, and that the margins of shale clasts became indistinguishable due to compaction and diagenetic overprint . They also show none of the features described from muddy turbidites. They may actually be the deposits of short lived lutite flows, possibly induced by storms on the shelf or by river floods .