Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Wea. THUR. MARCH 4, 1909 Ther.
Sunday Sep. 23 - 1928
By morn it cleared up and we conclude
to go to Canada with Clark, McShuffle and
Griellmay. They had first to repair their car
and it was nearly four oclock by the time we started.
We go via Sweeny Corner to the northeast and
finally near Richmond came on into Canada.
Got to Lethian seven miles north of the Boundary,
at 7 P.M. We traveled 35 miles and looked at
some exposures of the Algonkian series, and two
one with slate, and one Algonkian.
It is getting cold
The Pre-Cambrian is mainly gneiss rocks,
buthere are zones of quartzite, schist, and dolom.
ite. In Canada it has chlorite schist =
metamorphed iron ore material - larnas and
tufa. These silicomics do not seem in Mt.