Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
(5) 5.0 Interbedded, gray to brown weather finely
silty sh. and irreg X-bedded 1x-12in
vfq Subgraywacke SS. Locally SS
predominates over large part bedlands,
but loc. shoals out. Where study commonly
layers 1 to 1.5 thick at top and base,
intersecting small lenses also
common. Red brn X-brn cclc. Com.
cones, light gray on break zvc common.
shaly beds loc. szzt, plant frags.
Sample 6 is with SS + shale some shell
frags in piece
(6) 36.7 Shale, vf silty to bauxitic clay shale
with silt blobs interbedded with
& interlza. with silt & minor
units of vfq sand. Unit as whole
is chiefly > bedded shale + silt
that weathers to rounded popcorn
crusted shoulders, bedding not
as prominent as in lower bedded
beds. Fresh shale varies from brn gray
to black, plant frags general througth
local concen on bedding. Few
concretions and those chiefly
loczl, no continuous layers, small
rb'tgray weathering, blocky fracture
also some lim. & jzvos. blobs;
Cones - as usual- on sandy layers.
Upper 12' begins to get shalier
Sample 7, 5', above base
Sample 8, 15''
Sample 9, 25''