"WardsSci000452"

Black, fissile; commonly with carbonized fossil plant impressions.

Red clastic rock composed of sand sized particles and hematite.

Sale

Light gray, fine small clasts.

Dense and massive.

Earthy, porous calcareous tufa.

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

Hematite-cemented quartz; orthoquartzite.

Brownish black, intermediate stage between peat and bituminous coal.

White, mature, friable.

Gray to brown mudstone with abundant silt.