Dead-ice occurs when a glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

 or ice sheet

Ice sheet

An ice sheet is a mass of glacier ice that covers surrounding terrain and is greater than 50,000 km² , thus also known as continental glacier...

 ceases to move and melts in situ. After the ice has melted it leaves behind a hummocky terrain produced by the deposition of glacio-fluvial sediments and ablation till as the ice melted. Such features include kettle holes. Landscape forming Veiki moraine

Veiki moraine

A Veiki moraine is a particular type of moraine found in northern Sweden and parts of Canada that is characterized by forming a hummocky landscape of moraine plateaus with elevated rims that are intercalated with ponds. The name Veiki derives from the type locality of Veiki in Swedish Lapland...

s in northern Sweden and Canada have been ascribed as the result of ablation of extensive bodies of till-covered dead-ice.