Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
1.5' fine sandstone, sandy shale, and minor
silty sandstone.
3'+ with
underbidded dark sandy shale and fine ss:
ss speckled as above, in beds 1/2" to .3 (this
shale more locally thicken and less sandy
laterally. (see separate section of same)
12.5' ss: fine grained iron speckled, similar
to above, less thin bedded than massive
beds; end beds up to three feet: poorly
undulated weathering to buff. local channelling
within unit: concretary iron cemented
zone locally present 8-9' feet from top.
as above this concretary zone more
resistant than those below it [lower 2']
becoming increasingly silty and shaly
with few resting layers; grades into
underlying unit. Underlying unit is
silty to sandy clay grading to finely
silty clay: weather (silty upper part)
light gray with some iron staining, lower
part gray with reddish mottling: may be
due to weathering and not original feature.
1.2' gray argillaceous siltstone: weather white
with irregular iron stain.
3.3' silty clay: gray to light gray in weather,
ed surface; fresh color underneath, some
iron stained streaks