"WardsSci000452"

Gray to brown mudstone with abundant silt.

Typical green-gray, fissile, clay-rich.

Well-cemented, medium-grained orthoquartzite.

Brownish gray, kerogen-rich; commercial oil source.

Gray with line crinoid columnal fragments.

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

Red, medium, to coarse-grained iron oxide cement; shows hematite bands.

Light gray, fine small clasts.

Red-brown to gray, coarse-grained, containing feldspar and mica.

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