"WardsSci000452"

Brownish black, intermediate stage between peat and bituminous coal.

Gray to brown mudstone with abundant silt.

Typical green-gray, fissile, clay-rich.

Well-cemented, medium-grained orthoquartzite.

White, mature, friable.

Buff, coarse, crystalline “Austin Marble” with shell casts and molds.

Gray with line crinoid columnal fragments.

Gray, fine to medium-grained “Berea grit”.