A large thick mass of ice that moves is an Iceberg.
Any large mass of ice that moves slowly over ice is called a glacier.
A lot of different things move in one large mass. One common example is a glacier, a large mass of ice that moves as one unit.
a glacier
glacier
A glacier.
Glacier A continuous mass of ice covering a . . A continuous mass of ice covering a large landmass is known as a mass of perennial ice. (general term). The ice covering Antarctica is called an ice sheet, and it covers 98% of the continent.
A glacier.
a glacier
A large mass of snow and ice
Naturally formed mass of ice and snow that moves downhill on land under the influence of gravity
That is an iceberg.
a large mass of floating ice