Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
gray to buff, locally pinkish. Coarse +
clay layers include chert + quartz etc.
frag., also intraforma clay pellets locally.
Much Fe stain locally, some in
blebs from 1/4 to 1/2" in diam., locally
concentrated in concretions up to
3' in diam. Locl pH bed worth, cyl local
discoal
fractone base common
10'+ to 4'.0 Brown to red silty clayey + silty clsty
local lenses hard fine ss in upper
foot.
13 to 15'
SS - fine grained massive x laminated
wealthy buff with pinkish zones +
local pelleted zones.
> bed bottom.
19'
Claystone (mudly?) about 1.5 to 2.0 of
gray at top, then maroon 3 to 4 feet
best gray grading to gray - all
gray in lower 3'.
2.5 Concretionary? zone of argill is? test
Gray weather like gray to cream with
orange Fe stain. Coarse fracture.
No bedding, wavy sulfide thrust.
3.5 Dark gray claystone, hard with
white flow specks + some calc flecks
silty + greenish in basal 1.5
5.7 Fine grained SS buff to fine
brown weather, eroded at top grades
up into claystone above. Is massive.
14 Slope wash on gray-green
claystone, no hard beds.
9.1 Concretionary layers
47