The Hardness of Ice and Aerial Erosion
Many authorities have demonstrated that the hardness of ice varies inversely as the temperature, which is, of course, to be expected by analogy with metals. Recently Dr. E. Blackwelder 1 caused some experiments to he made at a temperature of −78.5° C., the temperature of solid carbon dioxide. At thi...
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Language: | English |
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Cambridge University Press (CUP)
1947
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Online Access: | http://dx.doi.org/10.1017/s0022143000001143 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000001143 |
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crcambridgeupr:10.1017/s0022143000001143 2024-03-03T08:45:57+00:00 The Hardness of Ice and Aerial Erosion 1947 http://dx.doi.org/10.1017/s0022143000001143 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000001143 en eng Cambridge University Press (CUP) Journal of Glaciology volume 1, issue 01, page 33 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1947 crcambridgeupr https://doi.org/10.1017/s0022143000001143 2024-02-08T08:36:15Z Many authorities have demonstrated that the hardness of ice varies inversely as the temperature, which is, of course, to be expected by analogy with metals. Recently Dr. E. Blackwelder 1 caused some experiments to he made at a temperature of −78.5° C., the temperature of solid carbon dioxide. At this temperature the hardness of ice was found to be approximately 6, or that of orthoclase felspar. Hitherto it had been assumed that aerial corrosion of rocks close to glaciers and snow-fields was in the main due to rock dust. It now seems likely that when air temperatures fall very low, as for instance during blizzards, ice fragments or snow could abrade certain limestones and shales and even some igneous rocks. Ice and snow may therefore play a more important part in aerial erosion than had been suspected. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 1 01 33 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes The Hardness of Ice and Aerial Erosion |
topic_facet |
Earth-Surface Processes |
description |
Many authorities have demonstrated that the hardness of ice varies inversely as the temperature, which is, of course, to be expected by analogy with metals. Recently Dr. E. Blackwelder 1 caused some experiments to he made at a temperature of −78.5° C., the temperature of solid carbon dioxide. At this temperature the hardness of ice was found to be approximately 6, or that of orthoclase felspar. Hitherto it had been assumed that aerial corrosion of rocks close to glaciers and snow-fields was in the main due to rock dust. It now seems likely that when air temperatures fall very low, as for instance during blizzards, ice fragments or snow could abrade certain limestones and shales and even some igneous rocks. Ice and snow may therefore play a more important part in aerial erosion than had been suspected. |
format |
Article in Journal/Newspaper |
title |
The Hardness of Ice and Aerial Erosion |
title_short |
The Hardness of Ice and Aerial Erosion |
title_full |
The Hardness of Ice and Aerial Erosion |
title_fullStr |
The Hardness of Ice and Aerial Erosion |
title_full_unstemmed |
The Hardness of Ice and Aerial Erosion |
title_sort |
hardness of ice and aerial erosion |
publisher |
Cambridge University Press (CUP) |
publishDate |
1947 |
url |
http://dx.doi.org/10.1017/s0022143000001143 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000001143 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 1, issue 01, page 33 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000001143 |
container_title |
Journal of Glaciology |
container_volume |
1 |
container_issue |
01 |
container_start_page |
33 |
_version_ |
1792501685265891328 |