In glaciology, an ice cap is a mass of ice that covers less than 50,000 km2 (19,000 sq mi) of land area (usually covering a highland area). Larger ice masses covering more than 50,000 km2 (19,000 sq mi) are termed ice sheets.[1][2][3]
^Benn, Douglas; Evans, David (1998). Glaciers and Glaciation. London: Arnold. ISBN0-340-58431-9.