Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Hole 20
0 to 8' Cambrian.
36-5 Fine grained gray to dark gray sandstone, locally
shaly & irregularly bedded.
43-6 Coal (Wellersburg)
45 Dark silty claystone
46-6 Calc. claystone grading to argillaceous limestone,
with scattered fine calc. inclusions.
49-3 Silty, banded clay with scattered limestone
inclusions.
55-6 Argillaceous limestone and siltstone.
61 Fine grained white quartzitic sandstone
62 Clitterbedded hard (concretionary?) dark limestone
and bastard clay
64 Semiplastic to semihard clay (Fair)
67 IW Hard, dark, (cryptocrulline or non-crulline) limestone.
(Silty near base, broken by clay streaks at
base)
70 Semihard and subplastic clay, upper 6"
fragmental with limestone inclusions.
79 Silty locally shaly claystone with several
6"+ zones of ironstone.
88-9 Black sandy shale, locally has sandstone
laminas. Plant remains.
92-8 Coal (Barton)
98-10 Silty, calc. bastard clay grading to silty,
light gray claystone with ironstone
inclusions at base
104-6 Argillaceous siltstone and sandy siltstone
109-2 Clitterbedded silty clay shale + shaly siltstone
(2" bitstone Fe? pellets at base.)
110 Fragmental semihard silicops clay (GC 201)
112 Silty claystone + siltstone.
121-5 Calcareous zone with interbedded 1) bastard clay
with limestone nodules, 2) argillaceous limestone
3) calcareous claystone with nodules and
gradations of all types
34