Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
July 13, Port Bay.
75 feet. Greenish gray shale sandstone. dips 53° N, 60° E.
215 feet. Fine finable shale like that above, varying from bluish to green and red and in the upper foot interlaid with thin bands of chert. This looks the equivalent of Stanley's slurs in No 5 seen about 2 miles south of these pits [The place we photographed as the pictures are taken], dips 70° N, 60° E.
2 feet gray sandstone
90 feet. Blackish gray fissile shale.
2 feet gray sandstone.
30 feet. Dark shale, partly improved.
90 feet. Greenish gray, very massive sandstone, standing vertically and due forming a headland, at the top grading into the next zone.
65 feet. Greenish brown shale and then slaty sandstone.
75 feet greenish Haull shale.
10 feet gray sandstone.
15 feet greenish shale.
110 feet. Alternating beds of greenish sandstone 2 to 5 feet thick with equal beds of shale. Many peculiar ripple marks on the under surface [Both?] flow structure recently described by J McClure as due to interference ripples].
200 feet. Red and greenish shale.
40 feet. Interlaid large sandstone layers and often sandy shale.
30 feet. Greenish clud gray shale.
115 feet. Greenish gray sandstone more massive bed.