Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
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Transcription
Jacquet River, Monday July 15=1929 (cont.)
Nearly everywhere the upended Silurian is unmem-
formatively retained by the Bromavertine implements. It always
overlies directly half the Silurian. It does not in any one case
than 1/2 miles, and its thickness is not great. At the west end
of the section it runs north to the Silurian but hits against
a vertical cliff of it. Allrock is displaced or grames
physiographically from if the Bromavertine was not
laid down in Cretaceous time. He thinks he who has
some support in the Foraminifera found by Clarke and
determined by Chapman. This evidence is almost worthless.
To me all of it is best called Pennsylvanian
and certainly isn't older than Drinker = dip Mississippian.