Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Pointe St. Peter, Thursday Aug. 21-1930
Had lunch wit me and spent the day scanning
the "Bmarantine" cliffs north to Red Head.
Started from north side of Pointe Harry Cngl (4),
which at the top if the cliff is about 16' thick. Its worn surface
(Whale Head)
estimated at 60'
is mud-cracked. I don't if this cngr. is more than 20' thick. Later.
Then it occurs regularly bedded thin and thick green SS that
create a dull red; all are decided iron-bedded. The craser SS
are still very arkosic with the red feldspars conspicuous, but less
common than in gounpa beds. Nearly all of the more prominent bedding
surfaces have red weathering clay-falls in a thickness of a few inches
up to one foot thick. Here and there are short lenses of sandy cl.
Also the first evidence of land plants, circular to oval or flattened
small stems that branch occasionally, all show a fibrous nature
and often the outer part is coaly with the center (layer) filled with
mud or sand. Saw no leaves of any kind. Probably all are
Poil affgen. These come in about 100' beneath Cngl. (4). There
is also a little of silren mica present. Saw a few current ripple
and current surfaces = river action. From here down the land
plants are always present - rare in solid SS and not common in
shaly thin-bedded SS. The thickness down to water-face is about
300'. Here then irregular beds of green cl. At the falls the dip is
20° S.E.
Same SS series continues below. At 300' beneath falls saw
a fine smooth? faethford trail, about 3/8 inch wide and about