Sediment and Sedimentation

Ice in glaciers is very effective at eroding and transporting material of all sizes. Glaciers can move boulders as large as a house hundreds of miles.

If you look around, glaciers are not a very common sight these days. However, at times in the geologic past, continent-sized glaciers covered vast areas of the Earth at middle to high latitudes. Today, continental glaciers occur only on Antarctica and Greenland. In addition, many smaller glaciers exist at high altitudes on some mountains. These are called alpine glaciers.