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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ftcaltechauth:oai:authors.library.caltech.edu:9haqe-7zj91 2024-06-23T07:49:00+00:00 Deformation of Bore Hole in Malaspina Glacier, Alaska Sharp, Robert P. 1953-01 https://doi.org/10.1130/0016-7606(1953)64[97:DOBHIM]2.0.CO;2 unknown Geological Society of America https://doi.org/10.1130/0016-7606(1953)64[97:DOBHIM]2.0.CO;2 oai:authors.library.caltech.edu:9haqe-7zj91 eprintid:98570 resolverid:CaltechAUTHORS:20190911-091110797 info:eu-repo/semantics/closedAccess Other Geological Society of America Bulletin, 64(1), 97-100, (1953-01) info:eu-repo/semantics/article 1953 ftcaltechauth https://doi.org/10.1130/0016-7606(1953)64[97:DOBHIM]2.0.CO;2 2024-06-12T01:38:49Z 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. © 1953 The Geological Society of America, Inc. This work constitutes part of Project Snow Cornice, an endeavor of the Arctic Institute of North America directed by Walter A. Wood. The Office of Naval Research supported the glaciological research under contract N6onr 244-16, and the Parsons Survey Company of South Gate, California, kindly loaned a small-diameter inclinometer without charge for the surveys of 1951 and 1952. Bellingham Canning Company, the U. S. Coast Guard, and the Civil Aeronautic Association provided valuable logistical support. The following men participated in the work at the test site: C. R. Allen, D. R. Baker, L. H. Nobles, G. P. Rigsby, and G. I. Smith. The aid of these organizations and individuals is gratefully acknowledged. California Institute of Technology, Pasadena, California Division of Geological Sciences, Contribution no. 610. Article in Journal/Newspaper Arctic Institute of North America Arctic glacier glaciers The Arctic Institute Alaska Caltech Authors (California Institute of Technology) Arctic Rigsby ENVELOPE(-67.617,-67.617,-66.667,-66.667) |
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Caltech Authors (California Institute of Technology) |
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unknown |
description |
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. © 1953 The Geological Society of America, Inc. This work constitutes part of Project Snow Cornice, an endeavor of the Arctic Institute of North America directed by Walter A. Wood. The Office of Naval Research supported the glaciological research under contract N6onr 244-16, and the Parsons Survey Company of South Gate, California, kindly loaned a small-diameter inclinometer without charge for the surveys of 1951 and 1952. Bellingham Canning Company, the U. S. Coast Guard, and the Civil Aeronautic Association provided valuable logistical support. The following men participated in the work at the test site: C. R. Allen, D. R. Baker, L. H. Nobles, G. P. Rigsby, and G. I. Smith. The aid of these organizations and individuals is gratefully acknowledged. California Institute of Technology, Pasadena, California Division of Geological Sciences, Contribution no. 610. |
format |
Article in Journal/Newspaper |
author |
Sharp, Robert P. |
spellingShingle |
Sharp, Robert P. Deformation of Bore Hole in Malaspina Glacier, Alaska |
author_facet |
Sharp, Robert P. |
author_sort |
Sharp, Robert P. |
title |
Deformation of Bore Hole in Malaspina Glacier, Alaska |
title_short |
Deformation of Bore Hole in Malaspina Glacier, Alaska |
title_full |
Deformation of Bore Hole in Malaspina Glacier, Alaska |
title_fullStr |
Deformation of Bore Hole in Malaspina Glacier, Alaska |
title_full_unstemmed |
Deformation of Bore Hole in Malaspina Glacier, Alaska |
title_sort |
deformation of bore hole in malaspina glacier, alaska |
publisher |
Geological Society of America |
publishDate |
1953 |
url |
https://doi.org/10.1130/0016-7606(1953)64[97:DOBHIM]2.0.CO;2 |
long_lat |
ENVELOPE(-67.617,-67.617,-66.667,-66.667) |
geographic |
Arctic Rigsby |
geographic_facet |
Arctic Rigsby |
genre |
Arctic Institute of North America Arctic glacier glaciers The Arctic Institute Alaska |
genre_facet |
Arctic Institute of North America Arctic glacier glaciers The Arctic Institute Alaska |
op_source |
Geological Society of America Bulletin, 64(1), 97-100, (1953-01) |
op_relation |
https://doi.org/10.1130/0016-7606(1953)64[97:DOBHIM]2.0.CO;2 oai:authors.library.caltech.edu:9haqe-7zj91 eprintid:98570 resolverid:CaltechAUTHORS:20190911-091110797 |
op_rights |
info:eu-repo/semantics/closedAccess Other |
op_doi |
https://doi.org/10.1130/0016-7606(1953)64[97:DOBHIM]2.0.CO;2 |
_version_ |
1802639288841535488 |