Boulder clay

Boulder clay, in geology, is a deposit of clay, often full of boulders, which is formed out of the ground moraine material of glaciers and ice-sheets wherever they are found. It was the typical deposit of the Glacial Period in northern Europe and North America.

Boulder clay

Boulder clay, in geology, is a deposit of clay, often full of boulders, which is formed out of the ground moraine material of glaciers and ice-sheets wherever they are found. It was the typical deposit of the Glacial Period in northern Europe and North America.