Image from the Biodiversity Heritage Library.
Contributed by Smithsonian Institution Archives.
| www.biodiversitylibrary.org
Transcription
Bare Black Shale 600
A short distance below Breasy Shoal
on the west bank of the river is the,
following section:
Black shale
2 1/2 in Sandy layer. Olinphlites led Dry. Miller
Thin bedded 28 ft thin
{Madison beds 38 ft.
bedded
Layer with branching Bryozoa and heavy
Blickleaded 16 ft,
About 5 1/2 feet below the top of the heavy
Madison beds is a layer with more
limestone characters, containing
quite a number of branching Bryo-
zooas. Typical Madison ortho is found
below this Bryozoon layer.
Orthus bifrons is found less than 2 1/2 feet
below the top of the heavy Madison beds,
Tuesday July 25 '99, BL Shale 629/19
About half way between Breasy creek
and Belk Island, on the west slope,
the following section is found:
Black shale.
3' in layer sandstone, plurphatic Milleri
Orthus bifrons both residents
seen at my trip.
68 ft Richmond beds.
The lower 20 feet are very fossilifer-
ous, and don't get anywhere, but the
alternates to.
From 1-3 feet above the base of the Black shale
a greenish clay shaly intermixes. Black shale below.
While the number of fossils decreases from
and to the top of the section and the lime
becomes more clayey, there are nevertheless
less plenty of fossils here.
Along the bank north east of Belk Island
very fossiliferous thin limestone with
very marked layers, one exposed for
a long distance dipping west.
At the southern end of the island,
the east bank of the river shows the
came strata dipping east.
About 1/4 mile beyond Belk island
on the east bank of the river, the arches
dip sweet almost as far as Belk Island.
Farther southeast down the
stream, there seems to be a southwest
dip again. All of these dips are well
marked but gentle.