sandur

The term "sandur" refers to an outwash plain, typically of limited size, composed primarily of sand deposited by meltwater from a glacier. These plains are a type of glaciofluvial deposit, formed when meltwater streams carrying debris spread out beyond the glacier's margin. As the water loses velocity, it deposits its sediment load, creating braided channels and sand/gravel bars. If a glacier's margin stabilizes during retreat, a new sandur can form inside the older one. Sandstones, a type of sedimentary rock, are composed mainly of sand-sized grains and are significant for influencing landscapes and as reservoirs for petroleum and water. Sandbur is a type of grass that produces spiny burs. The Sandbian Stage is an age within the Upper Ordovician Series.12345