The Finger Lakes in New York are long, mostly north–south glacial basins. A video argues that they radiate from a deep basin at the eastern end of Lake Ontario and that hundreds of drumlins between the lakes and Lake Ontario's south coast align with the same basin. The video proposes that catastrophic, high-pressure subglacial sheet floods carved the features during ice-sheet advance and retreat. Lake Seneca's maximum water depth is about 618 feet, with bedrock estimated near 1,200 feet. Published glacial summaries emphasize ice erosion, glacial deposition and moraine damming.
Video argues for catastrophic subglacial floods in the Finger Lakes
Key facts
- The Finger Lakes are elongated, mostly north–south glacial basins in central New York. Glacial erosion, deposition and moraine damming are the standard explanation for their formation.
- Hundreds of drumlins occur between the northern Finger Lakes and Lake Ontario's southern shore. Their long axes are used to infer the direction of glacial flow.
- The video argues that the lakes radiate from, and the drumlins align with, the deep basin at the eastern end of Lake Ontario.
- The video proposes that high-velocity, high-pressure subglacial sheet floods carved the features during ice-sheet advance and retreat; this is not the established explanation in the cited glacial summaries.
- Lake Seneca's maximum water depth is about 618 feet; the video also cites an estimated bedrock depth of roughly 1,200 feet.
Sources
randallcarlson.com
Linked in video description
The Finger Lakes & Great Lakes Basinscayugalake.org
See the relation of each of the Finger Lakes to one another in terms of drainage and elevations; via maps and diagrams gain a better understanding of how to ...
The Icy Origins of the Finger Lakesterra.nasa.gov
Lake Cayuga descends about 435 feet (133 meters) at its deepest point-putting it about 53 feet (16 meters) below sea level. On May 6, 2013, the ...
Finger Lakes Synoptic Water Quality Studynysl.ptfs.com
The Synoptic Water Quality Investigation of Cayuga Lake is divided into an assessment of the main lake (deep basin) and the southern shelf of the lake.
Finger Lakesen.wikipedia.org
The deep cutting by glacial erosion left some tributaries hanging high above the lakes—both Seneca and Cayuga have tributaries hanging as much as 120 m (390 ft)
Why Seneca Lakehillickandhobbs.com
Within the broader landscape of New York, this corner of the Finger Lakes stands apart for its rare alignment of geology, elevation, and lake influence.
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