Field Notebook: Maryland, New Jersey, Tennessee, Virginia, West Virginia, Indiana, Ohio, New York, Ontario 1907
Page 104
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
"the regultion Ohio Richmond beds only Rhynchotrema capax. These beds are seen in two cuts representing a thickness probably of not less than 150 feet. As far as this section goes lithologically, all appears to be conformable as an unbroken sequence. The last of the Richmond becomes mag- nesian, lighter colored and seems to shade over into the Silurian. However the lower Richmond beds already give way to shales in which Corbulus arphoid. There are no transition beds to these shales and yet all appears to be a sequence. Immediately above the thin dolomites have underlaid higher Kicjaran beds of the interin type. Purchased 4 photos showing the outcrops in the R. R. cut and the staging tracks. Left at 2:15 for Battle Ground and due at 4 for Louisville.