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Floating Glacier Tongue from Mount Erebus

Published online by Cambridge University Press:  30 January 2017

Bernard M. Gunn
Bernard M. Gunn*
Affiliation:
Department of Geology, University of Otago, Dunedin, New Zealand
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Type
Correspondence
Information
Journal of Glaciology , Volume 4 , Issue 36 , 1963 , pp. 828
Copyright
Copyright © International Glaciological Society 1963 

Sir,

The photograph in Figure 1 is of the floating glacier tongue which extends out into McMurdo Sound from the slopes of Mount Erebus on Ross Island. The lateral spurs and re-entrants are well shown. I assume that these spurs are formed when a glacier or ice stream in which the ice is flowing more rapidly at the centre than at the sides enters the sea, where, freed from restraining contact with the bottom, it moves at a uniform rate.

Fig. 1. The floating glacier tongue which extends into McMurdo Sound from the slopes of Mount Erebus, Ross Island (background)

Perhaps one of your mathematically inclined readers would be interested to derive a stress analysis for this interesting phenomenon.

28 March 1963

Figure 0

Fig. 1. The floating glacier tongue which extends into McMurdo Sound from the slopes of Mount Erebus, Ross Island (background)