| Abstract: | 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. |
| Genre: | Article |
| ProdID: | 70010241 |
| Citation Author: | Knox, A. S. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 797 |
| Citation Issue: | 3895 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Science |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 3 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Glacial age marsh, Lafayette Park, Washington, D.C.; 1969; Article; Journal; Science; Knox, A. S. |
| Citation Start Page: | 795 |
| Citation Volume: | 165 |
| Citation Year: | 1969 |
| Type: | citation/reference |
| Text: | Glacial age marsh, Lafayette Park, Washington, D.C.; 1969; Article; Journal; Science; Knox, A. S. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1969 00:00 -0600 |
| Publisher: | |
