Etymology
The word "drumlin" is derived from the Irish word "druim," meaning "ridge."
Meaning
A drumlin is a smooth, elongated, oval hill or ridge that is composed of unstratified glacial till.
Origin
Drumlins are formed by the movement of glaciers. When a glacier flows over the land, it picks up and deposits debris in the form of till. As the glacier moves, the till is deposited in parallel ridges that are streamlined in the direction of glacial movement. This streamlined shape is what gives drumlins their characteristic appearance.
Drumlins are typically found in glaciated regions, such as the northern United States, Canada, and Ireland. They are often found in groups, and they can range in size from a few meters to several kilometers long.
Drumlins are important because they provide information about the direction and extent of glacial movement. They can also be used to reconstruct the paleoenvironment of an area.
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