Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
9
concretioneous con horiznos (was
20cm) spaced 30-50cm apart.
More frequent to top.
Some silty partings 7-10cm,
dark & organic rich.
20cm won stained upper
contact to bed.
concretions up at top to acoarsess,
(more > 1mm gr. size), medium
gr. in middle.
Small trough set 1.5m frm
top indic. Inner bel. &gr.
sizle to top..
Photo'd unit, Pres. Photo of
small offset shears.
#12
Unit #22
5.5m Fissile med to olk grey mudstone.
Partly covered.