Contrasted Till Reliefs
The topography and relative amount of erosion which till-sheets suffer is sometimes used as a measure of identification and correlation. The method, however, is at best, only qualitative in character, and personal equation enters altogether too largely to make the test generally serviceable. Neverth...
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ftunortherniowa:oai:scholarworks.uni.edu:pias-4891 2023-08-20T04:07:43+02:00 Contrasted Till Reliefs Keyes, Charles 1933-01-01T08:00:00Z application/pdf https://scholarworks.uni.edu/pias/vol40/iss1/67 https://scholarworks.uni.edu/context/pias/article/4891/viewcontent/063_Contrasted_Till_Refliefs.pdf en eng UNI ScholarWorks https://scholarworks.uni.edu/pias/vol40/iss1/67 https://scholarworks.uni.edu/context/pias/article/4891/viewcontent/063_Contrasted_Till_Refliefs.pdf ©1933 Iowa Academy of Science, Inc. Proceedings of the Iowa Academy of Science text 1933 ftunortherniowa 2023-07-29T22:44:54Z The topography and relative amount of erosion which till-sheets suffer is sometimes used as a measure of identification and correlation. The method, however, is at best, only qualitative in character, and personal equation enters altogether too largely to make the test generally serviceable. Nevertheless, recently, it becomes possible to devise a methodical scheme of comparing tills, or of determining their ages based upon cosmical data, and relief expression assumes new interest and quantitative character. Thus, contrasted relief expression of the Ashuawa till, the Des Moines lobe of the Wisconsin group of glaciations the till derived from the Keewatin center of ice dispersion, when compared with the topography of the tills occurring just outside of the Ashuawa border, gives time-evaluations surprisingly different, as well as surprisingly precise, from previous empirical results. Text Keewatin University of Northern Iowa: UNI ScholarWorks |
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University of Northern Iowa: UNI ScholarWorks |
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ftunortherniowa |
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English |
description |
The topography and relative amount of erosion which till-sheets suffer is sometimes used as a measure of identification and correlation. The method, however, is at best, only qualitative in character, and personal equation enters altogether too largely to make the test generally serviceable. Nevertheless, recently, it becomes possible to devise a methodical scheme of comparing tills, or of determining their ages based upon cosmical data, and relief expression assumes new interest and quantitative character. Thus, contrasted relief expression of the Ashuawa till, the Des Moines lobe of the Wisconsin group of glaciations the till derived from the Keewatin center of ice dispersion, when compared with the topography of the tills occurring just outside of the Ashuawa border, gives time-evaluations surprisingly different, as well as surprisingly precise, from previous empirical results. |
format |
Text |
author |
Keyes, Charles |
spellingShingle |
Keyes, Charles Contrasted Till Reliefs |
author_facet |
Keyes, Charles |
author_sort |
Keyes, Charles |
title |
Contrasted Till Reliefs |
title_short |
Contrasted Till Reliefs |
title_full |
Contrasted Till Reliefs |
title_fullStr |
Contrasted Till Reliefs |
title_full_unstemmed |
Contrasted Till Reliefs |
title_sort |
contrasted till reliefs |
publisher |
UNI ScholarWorks |
publishDate |
1933 |
url |
https://scholarworks.uni.edu/pias/vol40/iss1/67 https://scholarworks.uni.edu/context/pias/article/4891/viewcontent/063_Contrasted_Till_Refliefs.pdf |
genre |
Keewatin |
genre_facet |
Keewatin |
op_source |
Proceedings of the Iowa Academy of Science |
op_relation |
https://scholarworks.uni.edu/pias/vol40/iss1/67 https://scholarworks.uni.edu/context/pias/article/4891/viewcontent/063_Contrasted_Till_Refliefs.pdf |
op_rights |
©1933 Iowa Academy of Science, Inc. |
_version_ |
1774719560077803520 |