Dictionary > Glaciers

Glaciers

Glacier
An immense field or stream of ice, formed in the region of perpetual snow, and moving slowly down a mountain slope or valley, as in the alps, or over an extended area, as in Greenland.
The mass of compacted snow forming the upper part of a glacier is called the firn, or neve; the glacier proper consist of solid ice, deeply crevassed where broken up by irregularities in the slope or direction of its path. A glacier usually carries with it accumulations of stones and dirt called moraines, which are designated, according to their position, as lateral, medial, or terminal (see Moraine). The common rate of flow of the alpine glaciers is from ten to twenty inches per day in summer, and about half that in winter.
(Science: geology) glacier theory, the theory that large parts of the frigid and temperate zones were covered with ice during the glacial, or ice, period, and that, by the agency of this ice, the loose materials on the earth’s surface, called drift or diluvium, were transported and accumulated.
Origin: f. Glacier, fr. Glace ice, L. Glacies.


You will also like...

Population Growth and Survivorship
Population Growth and Survivorship

This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..

Growth Patterns
Growth Patterns

This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..

Homo Species
The Homo Species

The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..

A chart depicting Mendel's Law of Dominance
Mendel’s Law & Mendelian Genetics

One of Mendel’s law of inheritance is the “law of dominance”. Read this tutorial to know more about this form of i..

Fossil trilobite imprint in the sediment
Insects

There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

Wart-like leaf galls on grape leaves
Plant Cell Defense

Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..

Related Articles...

No related articles found

See all Related Topics