Glacier Science and Environmental Change by Peter Knight

By Peter Knight

Glacier technology and Environmental switch is a finished reference paintings analyzing modern matters in glaciology and explores the interface among glacier technological know-how and environmental swap, previous, current, and destiny.

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Extra resources for Glacier Science and Environmental Change

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See Kor et al. (1991) for details. 1 Muschelbruche Muschelbruche are scoop-like depressions in the rock, with sharp, parabolic upstream rims and a steep slope on the upstream side of the depression. In the down-flow direction the floors of depressions are gently sloping and merge imperceptibly with the rock surface. Experimental muschelbruche may be formed in flumes by running slightly acidic water over a plaster of Paris bed (Shaw, 1996). The forms of the flume muschelbruche and those in nature are identical.

By analogy, landforms and other features of known origin that resemble drumlins or other subglacial landforms are used to fill in the missing information about the subglacial processes that created immense fields of these streamlined landforms (Fig. 1). The sets of analogues pairing subglacial bedforms with features created by turbulent fluids challenges modern drumlin studies holding that drumlins are formed by direct ice action on a deforming bed (Shaw, 1996). Erosional marks are formed by turbulent, low-viscosity flows that behave very differently than the high viscosity flows of ice and deforming sediment straining under stress applied by ice.

4). Like most bedforms, individuals may be transverse or longitudinal, depending on their alignment relative to the flow. , 1991; Fig. 3). Ljungner (1930) conducted the first comprehensive study of s-forms on crystalline bedrock in southwestern Sweden. Hjulström (1935) and Dahl (1965) also argued that these forms are products of meltwater erosion. See Kor et al. (1991) for details. 1 Muschelbruche Muschelbruche are scoop-like depressions in the rock, with sharp, parabolic upstream rims and a steep slope on the upstream side of the depression.

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