glacial retreat

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• glacial retreat —   when ablation exceeds accumulation causing a net loss of ice from the glacier. This usually involves the snout being found at a point in the valley short of the farthest it ever reached. Note that ice still moves downslope but that the zone of… …   Geography glossary

• Holocene glacial retreat — had a profound effect on landscapes in many areas that were covered by ice at the Last Glacial Maximum. The many valleys of the Cairngorms, a mountainous region in the Eastern Scottish Highlands are littered with deposits from this period.… …   Wikipedia

• Retreat of glaciers since 1850 — The retreat of glaciers since 1850, worldwide and rapid, affects the availability of fresh water for irrigation and domestic use, mountain recreation, animals and plants that depend on glacier melt, and in the longer term, the level of the oceans …   Wikipedia

• glacial landform — ▪ geology Introduction  any product of flowing ice and meltwater. Such landforms are being produced today in glaciated areas, such as Greenland, Antarctica, and many of the world s higher mountain ranges. In addition, large expansions of present… …   Universalium

• Glacial motion — is the motion of glaciers, which can be likened to rivers of ice. It has played an important role in sculpting many landscapes. Most lakes in the world occupy basins scoured out by glaciers. Glacial motion can be fast (up to 30 m/day, observed on …   Wikipedia

• Glacial Lake Bassano — was formed in the Late Pleistocene during the deglaciation of south central Alberta by the impoundment of the re established proglacial drainage system and addition of glacial meltwater. It is associated with the development of through flowing… …   Wikipedia

• Glacial striation — Glacial striations or glacial grooves are scratches or gouges cut into bedrock by process of glacial abrasion. Glacial striations usually occur as multiple straight, parallel grooves representing the movement of the sediment loaded base of the… …   Wikipedia

• Glacial Lake Passaic — was a prehistoric proglacial lake that existed in northern New Jersey in the United States at the end of the last ice age approximately 13,000 years ago, which was formed of waters released by the melting of the retreating Wisconsin Glacier that… …   Wikipedia

• Glacial Lake Tonawanda — was a prehistoric lake that existed approximately 10,000 years ago at the end of the last ice age, in Western New York, United States.Ernest H. Muller (1977), [http://www.blackwell synergy.com/doi/abs/10.1111/j.1749… …   Wikipedia

• Glacial Lake Duluth — was a proglacial lake that formed in the Lake Superior drainage basin as the Laurentian Glacier retreated. The oldest existing shorelines were formed after retreat from the Greatlakean advance, sometime around 11,000 years B.P. Lake Duluth formed …   Wikipedia

• Glacial history of Minnesota — The glacial history of Minnesota is most defined since the onset of the last glacial period, which ended some 10,000 years ago. Within the last million years, most of the Midwestern United States and much of Canada were covered at one time or… …   Wikipedia