Field Notebook: Canada, Quebec, Nova Scotia, New Brunswick, Ontario, New York 1913
Page 103
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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