14 Undergraduate Research II (Sponsored by Geology Division, Council on Undergraduate Research) (Posters)
Monday, 12 March 2001
1:30 PM - 5:00 PM
CHRONOLOGY OF LANDSCAPE EVOLUTION AT ONEIDA LAKE
Paper number: 14-23
Program: THEME SESSIONS
Time: 1:30 PM – 5:00 PM
Authors
Abstract
Oneida Lake formed as a relict arm of glacial Lake Iroquois at the Pleistocene-Holocene transition. As the southeastern portion of the Lake Ontario Basin settled into its Holocene drainage patterns, Oneida Lake receded, depositing what seems to be a series of beach ridges. The easternmost ridge, having been previously dated to 10.7 Ka, marks the limit of the area under investigation; the western limit being the modern Sylvan Beach. Due to the lake's long fetch and high energy levels, rates of deposition are high; thus, these deposits have the potential to record important early Holocene environmental changes. This project investigates the near-surface stratigraphy and shallow seismic reflection in these deposits and addresses the chronology of the beaches with AMS shell dating and soil organic content.