Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Grimsby Ont. Friday Aug 8-1913
Near the head of Forty Mile Creek back
of Grimsby one gets a good view of the contact
between the Rochester shale and Lockport.
The Rochester shale is most frutiforms towards
the bottom, as one goes up in the shale the
form vanishes more and more and the strata
become harder and look like a bad water-
line.
Then almost suddenly appear still bearing
boded cratulines that are more or less with
fossil structure. There is about six feet of
this, of which the middle three feet is most
distinctly rolled. These beds are to be referred
to the Lockport as correspond with the same
rolled beds at Niagara. Come those then
follows the more the boded regularity Lock-
port. At this line there is greater irregularity
and even shift channeling. Therein the
six foot of cratulines had to be added to the
Rochester