Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Monday March 17-1919. Mineral Beds.
Finally got started at 5:15 although going at 6
to start at 7 A.M. Mr. H. C. Bean is our genl chauffeur.
About 10 miles out to the west from Mineral Beds
are are of those of the Canyon series in the Palo Pinto
limestone. There is a hard and grit quarry we saw
about 25 feet. We saw about 10 identifiable species
also specific concretions, see the little [illegible]
press. Rellingham crassus occurs common near the top.
The other 300 feet of the Strawn consists
essentially of blue shales with thin and thick series of
sandstone. Near the top is a thick series of sandstone
decidingly corn bedded indicating the shale was only a
sea. Coal is minimal in there at about 50 feet beneath the top.
Just beyond Palo Pinto on 13 miles west of
of the gypsum anticline
Mineral Beds in the Brazos and limestone is an impure
li. one with key for fossils, hard to get. The gne is 26
feet thick with an interbedded shale gne 12 feet thick
being [illegible] of li.
In the region the Strawn is 3500 feet, the
Canyon 700, and the Cesar 1000 feet. The Strawn
and Cesar thicken to the N.E. The Marble Falls
in the north
does the same, but the li. appear to give way to shale.
The Strawn is large shale with sandstone and