Hole 23
0 to 43 Surficial material
17-9 Clays tone, weather yellowish (may have been limy)
71 Silty clay shale and argillaceous Siltstone
73 Siltstone
78-6 Light gray shale, 3" black shale zone foot above base
80 Black Shale
84 Siltstone, 1' silty shale at base.
92 Silty dark gray bastard clay, limy pellets
100 Greenish gray bastard clay, red streaks top and base, limy pellets.
106-6 Fine sandstone, minor siltstone at top.
113 Siltstone, hard, fine, gravel cast
117-6 Mottled gray + green clay shale, silty in upper half, lower 2' fossiliferous.
118-9 Fossiliferous limestone.
129 Greenish clay shale, local limestone concretions.
132 Hard black shale, fossil fragment
132-7 Fossiliferous limestone
134 Gray silty clay shale
152-4 Interbedded dark gray shale and fine sandstone.
153-11 Coal (Harlem)
179 Calcareous clays tone, limestone pellets.
184 Gray bastard clay.
210 Greenish clays tone and bastard clay limestone inclusions at top and base.
212 Silty Claystone
229 Fine grained sandstone
242 Gray Clays tone locally silty clay shale at top + at base.
243-1 Coal
243-9 Argillaceous limestone
247-5 Calcareous bastard clay grading to siltstone.
260-8 Fine grained sandstone, locally cross laminated).
275-3 Interbedded silty shale, siltstone and fine Sandstone.
276-9 Gray to dark gray shale,
281-1 Coal