Diamicton

Diamicton (also diamict) is sediment that consists of a wide range of nonsorted to poorly sorted terrigenous sediment, i.e. sand or larger size particles that are suspended in a mud matrix. Some Earth scientists restrict the usage of this term to poorly or non-sorted sediment, which contains sparse terrigenous gravel suspended in a either a mud or sand matrix. Lithified diamicton is referred to as diamictite.