duver

Duver is a term used in geology to describe a landform created by the deposition of sand and gravel in a glacial meltwater stream. It is a type of outwash deposit, meaning it is formed from sediment that has been transported away from a glacier by meltwater. Duvers are typically elongated and have a gently sloping surface. They can vary in size from a few meters to several kilometers in length.

Duvers are found in areas that were once covered by glaciers, such as parts of North America, Europe, and Asia. They are often found in association with other glacial landforms, such as moraines and eskers. The sediment that makes up a duver is typically well-sorted and rounded, indicating that it has been transported and abraded by the meltwater stream.

The formation of a duver begins when a glacial meltwater stream carries sediment away from the ice. As the stream flows and loses energy, it deposits the sediment. If the stream is relatively straight and the deposition is continuous, an elongated deposit like a duver can form. Over time, vegetation may colonize the duver, helping to stabilize the sediment and further shape the landform. Duvers are important features for understanding past glacial environments and can sometimes be sources of sand and gravel for human use.