North American Pleistocene Stages Reconsidered in Light of Probable Pliocene-Pleistocene Continental Glaciation
Abstract
Confusion due to the conceptual usage of classic North American Pleistocene stage terms indicates the need for a new or revised terminology. The Pliocene-Pleistocene boundary has tentatively been dated about 2.5 ± 0.1 × 106 years. Glacial deposits in the central United States older than about 2.2 × 106 years may span that boundary.
- Publication:
-
Science
- Pub Date:
- October 1978
- DOI:
- 10.1126/science.202.4365.305
- Bibcode:
- 1978Sci...202..305B