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The Holocene record of lake levels of Mansell Pond, central Maine, USA

Ann C. Dieffenbacher-Krall

Institute for Quaternary and Climate Studies, 5726 Environmental Sciences Laboratory, University of Maine, Orono, ME 04469-5726, USA

Riley Flanagan-Brown

204 Olin Hall, Department of Earth and Planetary Sciences, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA

David Sanger

Department of Anthropology, 5774 S. Stevens Hall, University of Maine, Orono, ME 04469-5774, USA

A palaeohydrological study of Mansell Pond, a small (4 ha), closed-basin lake in central Maine, revealed distinct changes in lake levels throughout the Holocene. We examined the texture, organic content and macrofossils of eight cores and obtained 29 radiocarbon dates on transitions between sedimentary units. The water level fell between about 8000 ¹⁴ C yr BP and 6000 ¹⁴ C yr BP, and remained low until after 5000 ¹⁴ C yr BP. The water level may have begun rising as early as 4750 ¹⁴ C yr BP, with the most rapid increase occurring from 3225 ¹⁴ C yr BP to 2780 ¹⁴ C yr BP. This interpretation varies at some points from an earlier assessment of Mansell Pond's Holocene lake levels that was based on pollen and charcoal evidence from a single core. Records of Holocene lake levels from eastern Canada, the Lake Ontario region and southern New England are inconsistent with each other, suggesting that the influence of dominant air masses has been highly localized in this region

Key Words: palaeohydrology • lake levels • lacustrine sediments • macrofossils • Acadia • palaeolimnology • eastern North America

The Holocene, Vol. 11, No. 2, 189-201 (2001)
DOI: 10.1191/095968301677768783


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