Deformation of Bore Hole in Malaspina Glacier, Alaska
Demorest's (1942, p. 31-38; 1943, p. 365-373) exposition of extrusion flow in glaciers has not enjoyed universal acceptance. Skepticism has been especially strong in England where physicists have produced well-considered arguments and calculations showing that extrusion flow is a mechanical imp...
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| Format: | Article in Journal/Newspaper |
| Language: | unknown |
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Geological Society of America
1953
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| Online Access: | https://authors.library.caltech.edu/98570/ https://resolver.caltech.edu/CaltechAUTHORS:20190911-091110797 |
| Summary: | Demorest's (1942, p. 31-38; 1943, p. 365-373) exposition of extrusion flow in glaciers has not enjoyed universal acceptance. Skepticism has been especially strong in England where physicists have produced well-considered arguments and calculations showing that extrusion flow is a mechanical improbability (Orowan, 1949, p. 233-236; Nye, 1951, p. 565; 1952a; 1952b). Their analyses necessarily involve gross simplifications and are based in part upon assumptions concerning the physical properties and behavior of ice under long-continued confining pressure and stress so the validity of their conclusions needs independent confirmation. |
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