Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Monday Sep. 10 - 1934
After breakfast started in the Grande farm in northernmost Germany, with Prof T. H. Clark and Dorothy Kay, [illegible] we went direct to the unconformity, and after examining it all as if it were a slightly angular unconformity.
At the end of Highgate time the area was slightly folded, and upheaved to 150cm. During that interval must have been all the upper Highgate slate eroded away.
Then the Georgia sea invaded the area and across the irregular surface deposited the Georgia slate.
At the base of the Highgate in shallow dolomites were four deposits of a ls. angle of flat Highgate pieces. These patches have a thickness exposure in my own, but may possibly be seen up to 8" and in diameters of flat across.
The
At this angular unconformity one sees that in 7 feet down, about 20 inches of Highgate are cut out.
Then Clark found 100 fth N.E., and E. of 2 maple trees a layer and firm angular uncon- formity. Kay took 20x3 photos of it. There still of Highgate beds are cut out in 12 feet down