Eroded Drumlin at Chimney Bluffs

June 07, 2005

Chimney_bluffs copy

Provided and copyright by: Marion O. Weaver
Summary authors & editors: Marion O. Weaver

This November 2003 photo of an eroded drumlin was taken along the shore of Lake Ontario, at Chimney Bluffs State Park, New York. Drumlins are glacial landforms composed of unstratified glacial drift (till) -- they show the direction of movement of the glacier. Ideas of their formation include direct deposition by ice; high-pressure hydraulic flooding beneath the ice, and subglacial sediment deformation. Most geologist agree that they're a wave-form phenomena.

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