Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
2.
Clay bed in at 1 continues back down slope to here.
Split below comes with it and probably two or
more thin beds above it. No boulder-like clays
observed
3
Clay bed in here, gradually thins to N and pinches
out at (3A). From 3A N, locally lost - may cross at 4 or
more likely is bed that comes in again at 7.
Could
be main bed, then those coming off rim at 1
would be three small beds above it. Also could be
local, atypical lens in 1st Glencirun - like one
in Alameda-Morrison hogback, then main bed
would be in group that cross rim at 1.
Clay pellet col at (loc?)
4.
Maybe clay horizon (see 3)
picks off rim. Just north is small fault crossing
fracturing beds, about 3' downthrow to S.
5
Swale where 2nd shale locally comes onto rim.
Porellenitic bed present at top, platy beneath, the
shale.
6
Disconformity is ss on ss. 3rd's relatively thin,
not more than 5', and platy, lies in slope, only
locally ledgy. 4th Shale present, then basal
Glen sand that is fine-mid grit sits on
thick unit massive x-bed, eolith light grey
hyle.
section down from top of basal Glencirun
7.5. Sandstone, massive bed brown-wash, fine-
med gr, cross lam. ss.
Disconformity
59.0 Sandstone*, massive light gray, wash
yellowish, fine to coarsely cross-bedded.
base obscured by wash. Another ss bed about
8' thick, massive cross bedded, used to coarse
comes in down wash covered clstn
slope (that includes some red clstn) Guess
that it is about 30'- below ss above,
* Locally zone of red clstn comes in 6 to 10 ft
from top
[cont. p. 28]
14.