Field Notebook: Maine, Massachusetts, New Hampshire, New York, Ohio, Rhode Island, Ontario 1916, 1917, 1920
Page 78
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Kansas may be old granitic ridges in Pennsylvania. Earth drift gets its motion La. formed by later state. Brush & Penn. series, Troughs also long since may actually be erosions in late Penn. time from the W to E south, Canjor Creek, Cal. has marine Pliocene ends of Atlantic type. Open of Pacific with Atlantic at Tehuantepec. Antilles subsidence for very long in Cymanchian and constant in Cret. Then continued through Eocene till close of Oligocene. Elevation in Mexico (once present) continental Pliocene (little present).