Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
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Transcription
clays - Hole 12 GC
Bolivar 282-10 to 285-4
6" plastic fragmental, finely silty.
19" fragmental bits claystone (GC 122)
19" fragmental dense flint to claystone, pyritic
+ "black iron" (GC 123) silty
7" Shaly sarsiflint, siliceous.
Bastard clay + clay shale to 286-6
LE - ? 476-7 to 480-9
Alternating plastic clays, silty bastard clay
minor semichard, scattered sandstone grains
and pockets in upper part, locally pyritic.
quite carbonaceous.
Fragmental claystone - (207-7 to 234 at base of interval)
(GC-121)