Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Saturday Sep. 15-1923 Waterville-Boston.
Hardly finished the and contemplated Bay-
ommel and I started from Waterville at 6.30 A.M. Per-
kins saw us off and the morning is bright and cold, thus
I have been a hard frost last nights. At 7.30 we came
at Augusta and here are turn the most hardway road
from Portland to Bangor, and over through Orrittorp-
Greene to Lewiston. Here are granted to see the li.
gneisses (= City Quarry for road metal). It is a series of
more or less thick folded mantle interluded on with what
was a shale more a schist in the upper feet. The dip is
all over 40 degrees, Below those feet is the main mass
of granite and the main quarry. The whole is short
through to permatite dikes and a peg granite, and
finally by a few vertical (undisturbed) trap dikes
said type of Triassic time. Probably all of these
li. are of Potergrise age including the granite
intrusions, See the rock samples.
We then started for Portland and turn along
the Maine lake to Patermouth. Just beyond Opgoquit
Oraire, about 3 miles we turned towards the shore and
arrived on the rocks in front of the Bald Head and
Cliff House dikes. Here are great exposures of
vertical strata all highly metamorphosed that