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  • Glacial Till vs. Stratified Drift: Composition & Formation
    Glacial till is a type of unsorted sediment that is deposited directly by a glacier. It is typically composed of a mixture of clay, silt, sand, and gravel, and can contain large boulders. Glacial till is often found in moraines, which are ridges of sediment that are deposited at the edge of a glacier.

    Stratified drift is a type of sediment that is deposited by water that is flowing from a glacier. It is typically composed of layers of sand, silt, and clay, and can contain gravel and boulders. Stratified drift is often found in outwash plains, which are areas of sediment that are deposited beyond the edge of a glacier.

    One feature that is made of glacial till is a drumlin. Drumlins are elongated hills that are composed of glacial till. They are typically found in areas that were glaciated during the last ice age. Drumlins are thought to be formed by the movement of a glacier over a bed of sediment.

    One feature that is made of stratified drift is a kettle hole. Kettle holes are depressions in the ground that are formed when a block of ice melts out of a glacier. Kettle holes are often filled with water, and they can be found in outwash plains and other areas that were glaciated during the last ice age.

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