Glacial age marsh, Lafayette Park, Washington, D.C.
January 1, 1969
Organic sediments beneath historic Lafayette Park mark the site of a freshwater marsh which bordered the Potomac River when it was 15 meters above its present level. Plant microfossils and ice-rafted boulders indicate a climate much colder than now. The carbon-14 age of more than 45,000 years and palynological studies suggest an early Wisconsin age.
Citation Information
| Publication Year | 1969 |
|---|---|
| Title | Glacial age marsh, Lafayette Park, Washington, D.C. |
| Authors | A.S. Knox |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Science |
| Index ID | 70010241 |
| Record Source | USGS Publications Warehouse |