Glasier

Dari Wikipedia Bahasa Melayu, ensiklopedia bebas.

Glasier atau 'glasiar' ialah sungai ais yang bergerak perlahan dan berdsaiz besar. Asalnya terbentuk dari salji yang turun di kawasan pergunungan . Hasil tarikan graviti, salji yang membeku menjadi ais dan turun ke kaki gunung melalui lurah sungai .

Di sepanjang sungai glasier, terbentuk pelbagai rupa bumi seperti morain, drumlin, esker, sungai glasier , tasik fiord, puncak piramid, rabung arete, kame, kettles dan lain-lain.

Kajian saintifik glasier dinamakan glasiologi.

Aletsch Glacier, Switzerland
Aletsch Glacier, Switzerland
Icebergs breaking off glaciers at Cape York, Greenland
Icebergs breaking off glaciers at Cape York, Greenland
Mouth of the Schlatenkees Glacier near Innergschlöß, Austria.
Mouth of the Schlatenkees Glacier near Innergschlöß, Austria.
Formation of glacial ice
Formation of glacial ice
The Perito-Moreno Glacier, showing cracks in brittle upper layer
The Perito-Moreno Glacier, showing cracks in brittle upper layer
Ice cracks in the Titlis Glacier
Ice cracks in the Titlis Glacier
Imej:Holiday 2007 106.jpg
Signs warning of the hazards of a glacier in New Zealand
A drumlin field forms after a glacier has modified the landscape. The teardrop-shaped formations denote the direction of the ice flow.
A drumlin field forms after a glacier has modified the landscape. The teardrop-shaped formations denote the direction of the ice flow.


Diagram of glacial plucking and abrasion
Diagram of glacial plucking and abrasion
A glaciated valley in the Mount Hood Wilderness showing the characteristic U-shape and flat bottom.
A glaciated valley in the Mount Hood Wilderness showing the characteristic U-shape and flat bottom.
This image shows the termini of the glaciers in the Bhutan Himalaya. Glacial lakes have been rapidly forming on the surface of the debris-covered glaciers in this region during the last few decades.
This image shows the termini of the glaciers in the Bhutan Himalaya. Glacial lakes have been rapidly forming on the surface of the debris-covered glaciers in this region during the last few decades.
Features of a glacial landscape
Features of a glacial landscape
Landscape produced by a receding glacier
Landscape produced by a receding glacier
Isostatic pressure by a glacier on the Earth's crust
Isostatic pressure by a glacier on the Earth's crust