Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
July 31, 1951. Sunday.
A cloudy Sunday. Reading most
of the morning while the Keiths at church.
Much embroilment during afternoon and
evening.
In the late afternoon took a little walk
with Keith to see the sea of mountains to the
north of Crumacrell. It is the result of the
Appalachian orogeny and the erosion since.
Crumacrell rests on an elevated plain between
1200-1300 feet, a plain with others below that
front to the sea to the south. To the north
rise the hills all out of one Hemisphere.
Dr. Gerald Keith Hutton believes that the
orogeny's are due to the Appalachian oro-gen-y,
buts also believes that there is some late
Devonian uplifts.
The region about Greenfield is in the main a
maul metamorphosed gneissic - a schist - intruded
by much porphyritic granite. It may be that all
of N.H.'s now and old eroded by early Paleozoic
strata. In Maine it seems most of the state.