Dead ice
Dead ice is the ice in a part of a glacier or ice sheet that is no longer moving. As the ice melts, it leaves behind a hummocky terrain known as dead-ice moraine. Dead-ice moraine is produced by the accumulation of sediments carried by glaciers that have been left behind from ice melting. Features of such terrain include kettle holes. Landscapes forming Veiki moraines in northern Sweden and Canada have been attributed to the erosion of extensive bodies of till-covered dead ice.