Image from the Biodiversity Heritage Library.
Contributed by Smithsonian Institution Archives.
| www.biodiversitylibrary.org
Transcription
olite to the south of the trap is a bright pink.
Near outcrop 4, the Perry is again associated with dark gray
shales, a great thickness of which (over 200 feet) outcrop 100-200
yards S.60degrees west from the house of Mr.X--(house in S.W.9:1:1)
These shales are cut by a thick mass of trap, the ledge trending
N.50 degrees west which probably represents the direction of the dike
altho S.80 degrees west, some 450 feet, is another good trap outcrop.
The shales strike N.50 degrees E.( N.40-57 E) and dip at a high angle
,- about 60 degrees- to the northwest. The shales appear to the west
of the trap and again to the north, outcropping within 115 yards
S.60 degrees W. from the house.
The knoll in s.w. 8:5:3,-Outcrop 5- is composed of red shale.
An outcrop on the southwest side of the hill over 200 yards from the
road (about 70 ft.above tide on S.W. edge of 8.5.3. shows both red
Perry shale and gray Silurian shale abutting against each other in
a vertical (?) fault which trends N.15 degrees E. and which appears
to mark the west limit of the Perry.