Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
7.5
Claystone, gray, scattered silt and
sand grains of qtz + ch, minor
red flecks + pink stained areas.
Chiefly a soft clstu.
0.6 +/-
Siltstone, hard, irregularly
laminated, seams gypsum.
Forms local small ledges.
2.8
Siltstone, massive gray, yellow
powdery stain in lower part
weathers gray white. Becomes
clayey at top and grades
to unit above
5) 8.5
Claystone, gray, waxy, becoming
light gray, prob bentonitic in
lower 2.0. Has some
suzcs with what appear to
be sparsely spread spherulites.
Has hard dark gray silty
zones.. Unit spot-exposed only
4) 25.0
Interbedded platy siltstone, shale and
silts shale. Black to gray + brown
locally limnicitic. Lower 20' chiefly
sHstsn, upper black silty sh +
some cl.shale tdStn. Chiefly massive
loc friable brn silt in basal 1/3. The 58
Not well
exposed