Term
[image][image] [image][image]Arete[image][image] [image] |
|
Definition
| a sharp rugged mountain ridge, produced by glaciation. |
|
|
Term
| [image][image][image]Calving |
|
Definition
| To break at an edge, so that a portion separates. Used of a glacier or iceberg. |
|
|
Term
|
Definition
| a bowl-shaped, steep-walled mountain basin carved by glaciation, often containing a small, round lake |
|
|
Term
| [image][image][image][image][image][image][image]continental glacier |
|
Definition
| a glacier that spreads out from a central mass of ice |
|
|
Term
|
Definition
| A deep fissure in a glacier or other body of ice. Crevasses are usually caused by differential movement of parts of the ice over an uneven topography. |
|
|
Term
|
Definition
| An elongated hill or ridge of glacial drift. |
|
|
Term
|
Definition
| noting or pertaining to a boulder or the like carried by glacial ice and deposited some distance from its place of origin. |
|
|
Term
|
Definition
| A long, narrow ridge of coarse gravel deposited by a stream flowing in or under a decaying glacial ice sheet. Also called os3 |
|
|
Term
|
Definition
Granular, partially consolidated snow that has passed through one summer melt season but is not yet glacial ice. Also called old snow.
|
|
|
Term
|
Definition
| happening or moving extremely slowly: The work proceeded at a glacial pace. |
|
|
Term
|
Definition
| an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers. |
|
|
Term
|
Definition
| one of the bony, permanent, hollow paired growths, often curved and pointed, that project from the upper part of the head of certain ungulate mammals, as cattle, sheep, goats, or antelopes. |
|
|
Term
|
Definition
| An extensive dome-shaped or platelike perennial cover of ice and snow that spreads out from a center and covers a large area, especially of land. |
|
|
Term
|
Definition
| the forward section or seaward edge of an ice shelf. |
|
|
Term
|
Definition
| a broad, thick sheet of ice covering an extensive area for a long period of time. |
|
|
Term
|
Definition
| A short ridge or mound of sand and gravel deposited during the melting of glacial ice. |
|
|
Term
|
Definition
| A steep, bowl-shaped hollow in ground once covered by a glacier. Kettles are believed to form when a block of ice left by a glacier becomes covered by sediments and later melts, leaving a hollow. They are usually tens of meters deep and up to tens of kilometers in diameter and often contain surface water. |
|
|
Term
|
Definition
| a ridge, mound, or irregular mass of unstratified glacial drift, chiefly boulders, gravel, sand, and clay. |
|
|
Term
|
Definition
| a hill or mountain that has been completely encircled by a glacier. |
|
|
Term
|
Definition
| the material, chiefly sand or gravel, deposited by meltwater streams in front of a glacier. |
|
|
Term
|
Definition
| The outwash plain, which lies beyond the snout of a glacier or away from the margins of an ice-sheet, is composed of glacial sands and gravels transported and deposited by meltwater streams. |
|
|
Term
|
Definition
An elongate mound of bedrock worn smooth and rounded by glacial abrasion.
|
|
|
Term
|
Definition
| Finely ground rock particles produced by glacial abrasion. Also called glacier meal. |
|
|
Term
|
Definition
| the latitudinal line marking the limit of the fall of snow at sea level. |
|
|
Term
|
Definition
| One of a number of parallel lines or scratches on the surface of a rock that were inscribed by rock fragments embedded in the base of a glacier as it moved across the rock. |
|
|
Term
|
Definition
| glacial drift consisting of an unassorted mixture of clay, sand, gravel, and boulders. |
|
|
Term
|
Definition
| Ice sheets and ice caps cover vast areas and are unconstrained by the underlying topography. |
|
|
