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Tuesday, April 28, 2020 | History

3 edition of Glacial-erosion in Norway and in high latitudes found in the catalog.

Glacial-erosion in Norway and in high latitudes

on the theory of glacial motion

by Spencer, J. W.

  • 389 Want to read
  • 6 Currently reading

Published by s.n. in S.l .
Written in English


Edition Notes

Statementby J. W. Spencer
SeriesCIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 39443, CIHM/ICMH microfiche series -- no. 39443
ContributionsRoyal Society of Canada
The Physical Object
FormatMicroform
Pagination1 microfiche (13 frames)
Number of Pages13
ID Numbers
Open LibraryOL24474620M
ISBN 100665394438

  Lesson 6 - Landforms of Glacial Erosion. AQA Ice on the Land Spec. Western Norway (Norwegian: Vestlandet, Vest-Norge, Vest-Noreg) is the region along the Atlantic coast of southern Norway. It consists of the counties Rogaland, Hordaland, Sogn og Fjordane, and Møre og Romsdal. The region has a population of approximately million people. The largest city is Bergen and the second-largest is Stavanger. Historically the regions of Agder, Vest-Telemark • Total: 1,,


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Glacial-erosion in Norway and in high latitudes by Spencer, J. W. Download PDF EPUB FB2

GLACIAL EROSION IN NORWAY AND IN HIGH LATITUDES [Spencer, J.W.] on *FREE* shipping on qualifying offers. GLACIAL EROSION IN NORWAY AND IN HIGH LATITUDESAuthor: J.W. Spencer. Get this from a library. Glacial-erosion in Norway and in high latitudes: on the theory of glacial motion.

[J W Spencer; Royal Society of Canada.]. A glacier (US: / ˈ ɡ l eɪ ʃ ər / or UK: / ˈ ɡ l æ s i ər, ˈ ɡ l eɪ s i ər /) is a persistent body of dense ice that is constantly moving under its own weight.

A glacier forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often rs Glacial-erosion in Norway and in high latitudes book deform and flow due to stresses induced by their Glacial-erosion in Norway and in high latitudes book, creating crevasses.

Glacial erosion can also create a roche moutonnee, which is a mass of rocks carved by a passing glacier. The rock formation has a smooth, rounded side caused by abrasion and a steep, ragged side. glacier, moving mass of ice that survives year to year, formed by the compacting of snow into névé and then into granular ice and set in motion outward and downward by the force of gravity and the stress of its accumulated mass.

Glaciers are usually found in high altitudes and latitudes. Classification Glaciers are of four chief types. Glaciers are formed in a similar way, but on a much larger scale. Sunlight melts some of the snow. Then it freezes during the night, or if the temperature drops.

More snow falls onto the surface. Eventually, the weight of snow layers upon snow layers, and the melting and freezing, turns the layers into solid ice. If this ice forms Glacial-erosion in Norway and in high latitudes book a high.

ern North America, New Zealand and Norway. We will discuss these features and the glacial erosion processes that lead to their formation. It is the variation in the extent of continental scale ice sheets in the northern hemisphere that has driven the –m fluctuations in sea level over the last three million years.

On tectonically rising File Size: 6MB. Exercise Identify Glacial Erosion Features. This is a photo of Mt. Assiniboine in the B.C. Rockies. What are the features at locations a through e?Look for one of each of the following: a horn, an arête, a truncated spur, a cirque, and a col. Try to identify some of the numerous other arêtes in this view, as well as another : Steven Earle.

Most plateau surfaces Glacial-erosion in Norway and in high latitudes book southern Norway display some signs of glacial erosion (e.g., streamlined bedrock and lake basins), but it remains controversial Cited by: 6.

Glacial Geology: Ice sheets and landforms, Second Edition Glacial-erosion in Norway and in high latitudes book been thoroughly revised and updated throughout and provides a modern, comprehensive summary of glacial geology and geomorphology. The book clearly outlines glacial landforms and sediments and provides the reader with the tools required to interpret glacial landscapes/5(14).

Recent glacial erosion of fjords and low-relief surfaces in western Scandinavia. only accounts for % of the total sediment volume deposited offshore Norway.

This large mismatch implies. Geologically, a fjord or fiord (/ ˈ f j ɔːr d, f i ˈ ɔːr d / ()) is a long, narrow inlet with steep sides or cliffs, created by a glacier.

There are many fjords on the coasts of Alaska, Antarctica, British Columbia, Chile, Greenland, the Faroe Islands, Iceland, Kamchatka, the Kerguelen Islands, New Zealand, Norway, Novaya Zemlya, Labrador, Nunavut, Newfoundland, Quebec, Scotland, South.

From the Neogene, glacially derived ice-rafted debris (IRD) is found in ocean-sediment cores from the North Atlantic region, including the Barents Sea (Moran et al., ), and areas adjacent to Norway, north and southeast Greenland, Iceland, and northern North America, and in the Southern Ocean off Antarctica (De Schepper et al., ), bearing witness to the early glaciations ().Cited by: 5.

Glaciers can only form at latitudes or elevations above the snowline, which is the elevation above which snow can form and remain present year round. The snowline, at present, lies at sea level in polar latitudes and rises up to m in tropical areas.

These regions do not occur at high northern latitudes today (or in the recent geologic past) so they did not experience direct glacial coverage during the Wisconsin glaciation.

In fact, few of these regions of high chemical denudation fell in zones of decreased soil moisture 18 ka (compare Figures and ). The glacial erosion pattern may have been controlled by constructive volcanic processes resulting in increased topographic relief after Myr.

The oldest hyaloclastite (subglacial volcanic) ridge found in the stratigraphy of eastern Iceland is ca. Myr (Fig. 4a and b). A westward shift of the rifting zone ca. 1 Ma (Ágúst Gudmundsson Cited by:   These occur at high altitudes, latitudes nearer the poles and often on the colder, north- facing slopes.

Glaciers form in areas of permanent snow called snowfields. Royal Society of Canada: Glacial-erosion in Norway and in high latitudes [electronic resource]: on the theory of glacial motion / ([S.l.: s.n., Royal Society of Canada: Hand-book for the use of members and visitors, giving the rules of the society, its history.

On the other hand, interior and upland areas in Norway seem to be largely unaffected by glacial erosion and exhibit a possibly pre-Quaternary landscape with only some periglacial influence.

Nothing strange, since the fjord is Norway’s greatest natural symbol. But what is a fjord anyway. A very steep valley of glacial origin, located in latitudes near the poles, with great depth below the water.

Nature’s true work of art, sculpted by the glacial erosion that produces breath-taking U-shaped valleys. Abstract. Eighteen years ago I presented to this Society an essay on Glacial Erosion, in which my own observations were supplemented by a review of all that I could find written on the subject in the hope of reaching some safe conclusion regarding what was then (as it is still) a mooted question.

Although recognizing effective erosion to depths of ‘a moderate number of feet’ where ice Cited by: England: Glacial erosion of a High Arctic valley In this vicinity, up to 6 m of till are exposed along the present river, blanketing the bedrock. The till, in turn, is overlain by marine silts which contain in-situ shells at 76 m a.s.!.

dated t B.P. (S). Latvia's undulating landscape is dominated by morainic hills and meltwater deposits dating back to the latest glacial epoch.: Previous data have shown that, in the ice age, glacial ice built to quite high elevations in the mountains just inland from the Ross Ice Shelf.

The Copper River alluvial fan is an outwash plain, that is, formed from sediments deposited by glacial meltwater. The most significant, recent glacial erosion occurred during the Pleistocene epoch, thousand to million years ago, in the Quaternary period. During that time, over about 2 to 3 million years, the polar icecaps repeatedly melted and froze.

The types of glacial. glacial sediments and evidence of glacial erosion. Read More Inspire your inbox – Sign up for daily fun facts about this day in history, updates, and special offers.

A long narrow inlet of the sea between steep cliffs; common in Norway. Fjord. An abrupt transition zone that occurs when cool air from the high latitudes is brought together with relatively warm air from the subtropics.

Frontal Zone. Glacial Erosion. Another term for glacial erosion is abrasion. Abrasions occur when particles scrape against one another, which causes erosion. The friction that is caused in an abrasion loosens debris from the glaciers, causing them to fall away. Abrasions can occur in many ecosystems.

Rocks, waves, gravity, wind, and running water can all cause abrasions. Glaciers generally form at high elevations or in polar latitudes where accumulation during the winter exceeds ablation during the summer (Hooke, ). The aspect of the glacier is also important as it dictates the amount of solar insolation and wind-blown snow the glacier receives.

glacial activity. The vertical linear glacial erosion along several fjords amounts to – m, whereas it proba-bly is considerably less than m on some plateaux and summits; a description and discussion of the pattern of glacial erosion is given by Kleman et al.

A mean bedrockloweringof mthroughtheQuaternaryglaci. Valley formation by fluvial and glacial erosion David R.

Montgomery Department of Earth and Space Sciences, University of Washington, Seattle, WashingtonUSA ABSTRACT Cross-valley profiles from the west slope of the Olympic Peninsula, Washington, are used to investigate the relative effects of fluvial and glacial erosion on valley.

Exercise Identify Glacial Erosion Features. This is a photo of Mt. Assiniboine in the B.C. Rockies. What are the features at locations a through e. Look for one of each of the following: a horn, an arête, a truncated spur, a cirque, and a col. Try to identify some of the. Glaciers create a wide variety of erosional features, from carving subtle groooves as they flow over rock, to scouring out depressions that later fill with water to become ponds or lakes, to plucking out chunks of rock from mountain tops to form k.

WR: The Beerenberg Volcano is 2, m high and still has a km2 ice cap. During the glacial this mountain must have had a huge layer of ice stretching over the southern island, together they stretch a 50 km.

Looking at Google Earth Pro, the area above glacial sea level (m) must have been >km2, enough for a huge, high and heavy ice cap. The Discoverer of Chloroform.—The Jefferson County (N.

Y.) Historical Society, having secured the battle-field of Sackett's Harbor, besides erecting a monument to the soldiers buried there, has determined to perpetuate the memory, in a similar way, of. Start studying Glacial Features.

Learn vocabulary, terms, and more with flashcards, games, and other study tools. A group of international scientists working on Franz Josef Glacier (Kā Roimata o Hine Hukatere) in the South Island has found that the rate of glacial erosion is.

Glaciated landscapes in gneissose or granitic bedrock often show a scoured ‘hilly relief’ (Bonow et al. ) or ‘knock-and-lochan’ morphology (Linton ), characterized by a highly fractured landscape with strong relief of knolls and basins.

This topography closely follows old deep-weathering fronts from previous sub-aerial exposure, and was probably formed through a multistage Cited by: 3. The increase of erosion rates is observed at all latitudes, but is most pronounced in glaciated mountain ranges, indicating that glacial processes played an important part.

ARTICLE Widespread erosion on high plateaus during recent glaciations in Scandinavia Jane L. Andersen 1, David L. Egholm 1, Mads F. Knudsen1, Henriette Linge2, John D. Jansen 1, Vivi K. Pedersen2, Søren B. Nielsen1, Dmitry Tikhomirov3, Jesper Olsen3, Derek Fabel 4 & Sheng Xu4 Glaciers create some of Earth’s steepest topography; yet, many areas that were repeatedly.

Most of the world's glacial ice is found in Antarctica and Greenland, but glaciers are found on nearly every continent, even Africa. Because certain climatic and geographic conditions must be present for glaciers to exist, they are most commonly found above snow line: regions of high snowfall in winter, and cool temperatures in summer.

This condition allows more snow to accumulate on the. Answer: Glacial erosion, the picking up and movement of earth beneath pdf glacier, is also referred to as plucking.

Explanation: Glacial erosion consists of two main processes. The first phase is ‘plucking’ wherein there is erosion and transport of rocks.

In the mid s, when scientists began to realize that ice sheets download pdf overrun large tracts of land in the mid and high latitudes, they at first thought there had been only one ice age. As they began to look at glacial debris in more detail they concluded that ice ages may be more complicated than they had originally : Michael J.

Oard. The first time scale describes the response of ebook glacier and ebook second one the glacial erosion response. We find that glaciers have characteristic time scales of the order of 10 to 10, years, while the characteristic time scale for glacial erosion is of the order of Cited by: 6.