A large irregular fragment of glacier ice formed as a glacier moves over a steep icefall.
Fr, from a root meaning "Cheese curd"] - A large block or peak of glacier ice which is separated by crevasses from the main mass of its glacier, especially a block that is tilted, upthrust, or overhanging.
A large block of ice, generally taller than broad, formed by the fracturing of ice. Most commonly found within an icefall, at the edge of an ice cliff, or at the margins of fast- moving ice.
A serac (originally from Swiss French sÃ©rac, a type of crumbly white cheese) is a block or column of ice formed by intersecting crevasses on a glacier. Often house-sized or larger, they are dangerous to mountaineers since they may topple with little warning. Even when stabilized by persistent cold weather, they can be an impediment to glacier travel.
A pinnacle of ice among the crevasses of a glacier; also, one of the blocks into which a glacier breaks on a steep grade.
Large chunk of ice forming when a glacier drops off a cliff. Very dangerous and unstable.
A potentially dangerous block or tower of ice found in glacier crevasses, which can collapse and cause avalanches.
A sharp ridge or pinnacle of ice on a glacier or icefall.
A jagged pinnacle or tower of glacier ice located on the surface of a glacier, formed as a glacier flows down an icefall or by the intersection of crevasses. Frequently, large areas of a glacier will be covered by séracs. The terminus of McBride Glacier, Glacier Bay National Park, Alaska, showing numerous pyramidal topped séracs. The individual spires are more than 100 ft. high.
a block tower or pinnacle of glacial ice formed by the intersection of glaciers and crevasses
a large, isolated, and often unstable block of ice formed where the glacier surface is severely fractured
a steep ridge of ice formed between two crevasses of a glacier
A tower of ice on a steep glacier or an ice fall. They are very dangerous and gravity can cause them to fall at anytime. Beware
A pinnacle or tower of ice, often unsafe and unreliable for climbing, and prone to toppling in warm weather.
Large, unstable tower of ice seen on glaciers, especially in ice fall regions
A block or tower of ice on a steep glacier or in an ice fall. Seracs are very unpredictable and can collapse spontaneously, thus creating very hazardous climbing obstacles.
A pinnacle or tower of ice, usually unsafe and unreliable in nature, and prone to toppling in warm weather.
an isolated block of ice that is formed where the glacier surface is fractured.
A serac is an isolated block of ice that occurs on steep mountainous slopes. Seracs form when the glaciers that flow along these slopes break up rather than melt, creating huge surface fractures in the ice. Seracs are extremely dangerous, especially in summer when melt water from the glacier provides a lubricating layer between the ice and rock beneath leading to the threat of ice avalanches.
a large block of pinnaclelike mass of ice on a glacier, formed by the intersection of two or more crevasses. [AHDOS
a pointed part of a glacier