The first step in glacial erosion is rock failure. Rock failure can occur as the growth of pre-existing cracks or the formation of new cracks. Cracks form at weaknesses with in the rock, these weaknesses can be on the scale of large visible joints down to microscopic cleavage planes.
www.homepage.montana.edu/~geol445/hyperglac/eroproc1/
Glacial Erosion; Article #416 ... Glaciologists recognize two processes of erosion--abrasion and plucking. ... If the water is there under too high a pressure, it may lift up against the ice and prevent erosion. A key role of the water is to carry away ground-up rock flour particles. Unless that happens the base of the...
www.gi.alaska.edu/ScienceForum/ASF4/416.html
Glacier - Wikipedia, the free encyclopedia
A glacier is a perennial mass of ice which moves over land. A glacier forms in locations where the mass accumulation of snow and ice exceeds ablation over many years. The word glacier comes from F...
en.wikipedia.org/wiki/Glacier
fractures may predate glacial advance (e.g. freeze-thaw weathering) ... susceptibility of material to erosion ... Chemical erosion...
www.uwsp.edu/geo/faculty/lemke/geol370/lecture_notes/08... www.uwsp.edu/geo/faculty/lemke/geol370/lecture_notes/08_glacial_erosion_processes.html
Erosion - Wikipedia, the free encyclopedia
Erosion is the removal of solids (sediment, soil, rock and other particles) in the natural environment. It usually occurs due to transport by wind, water, or ice; by down-slope creep of soil and othe...
en.wikipedia.org/wiki/Erosion
Processes of Glacial Erosio ... 3.2 PROCESSES of GLACIAL EROSION ... There are two main processes of glacial erosion :-; plucking -This is the tearing away of blocks of rock which have become frozen onto the base and sides of a glacier. (tip!
www.geographyhigh.connectfree.co.uk/s3glacgeoghigherosi... www.geographyhigh.connectfree.co.uk/s3glacgeoghigherosion.html
Glacial Pace Of Erosion Was Not So Slow, New Technique Shows (Dec. 12, 2005) — Glaciers, rivers and shifting tectonic plates have shaped mountains over millions of years, but earth scientists have struggled to understand the relative roles of these forces and the rates at which ...
www.sciencedaily.com/releases/2003/08/030814071654.htm
Wearing-down and removal of rocks and soil by a glacier ... The most extensive period of recent glacial erosion was the Pleistocene epoch (1.6 million to 10,000 years ago) in the Quaternary period (last 2 million years) when, over a period of 2 to 3 million years, the polar icecaps repeatedly advanced and retreated.
www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0... www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0035305.html
have derived a law describing the physical processes that limit erosion by glaciers. This will help explain ... If a glacier digs too deep, strong thermodynamic feedbacks prevent further deepening, resulting in a balance where the glacial floor tilts 50% more steeply than the ice surface above, in the opposite direction.
www.nature.com/nature/links/030814/030814-1.html