Dating in erode
Glaciers ranged up to 4.8 kilometers (3 miles) thick.
Ice at 1.2 kilometers (1 mile) thick would exert a pressure of 150 tons per square foot.
During the life of Lake Iroquois the northern shore rebounded at a greater amount than the southern shore.
This resulted in the water levels continually rising along the southern shore causing increased erosion along the edge of the Niagara Peninsula.
After millions of years, the Niagara Escarpment continues to erode in a southward direction.Throughout its length from Hamilton, Ontario to Watertown, New York the escarpment ranges from 183 meters (600 feet) above sea level to 189 meters (620 feet) above sea level.The Niagara Escarpment is the ultimate reason the Falls of Niagara was born.Eons ago, the Niagara area the bottom of an ancient tropical salt water sea.Ancient specimens are being found today deep under the soils of Niagara that are still today found at the bottom of our great oceans.