Morphology of Frost Polygons As Related To Ground Slope in Eastern Greenland
This paper describes polygonal frost-patterned ground on level terraces, modification of the polygons by solifluction to garlands on slopes of 5° to 35°, modification of the garlands to rock stripes on slopes of 20° to 45°, collapse of stripes into jumbled rock glaciers on slopes of 35° to 60°, or m...
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ftunortherniowa:oai:scholarworks.uni.edu:pias-2569 2023-08-15T12:41:30+02:00 Morphology of Frost Polygons As Related To Ground Slope in Eastern Greenland Enzmann, Robert Duncan 1960-01-01T08:00:00Z application/pdf https://scholarworks.uni.edu/pias/vol67/iss1/46 https://scholarworks.uni.edu/context/pias/article/2569/viewcontent/46_Morphology_of_Frost_Polygons_As_Related.pdf en eng UNI ScholarWorks https://scholarworks.uni.edu/pias/vol67/iss1/46 https://scholarworks.uni.edu/context/pias/article/2569/viewcontent/46_Morphology_of_Frost_Polygons_As_Related.pdf ©1960 Iowa Academy of Science, Inc. Proceedings of the Iowa Academy of Science text 1960 ftunortherniowa 2023-07-22T22:45:25Z This paper describes polygonal frost-patterned ground on level terraces, modification of the polygons by solifluction to garlands on slopes of 5° to 35°, modification of the garlands to rock stripes on slopes of 20° to 45°, collapse of stripes into jumbled rock glaciers on slopes of 35° to 60°, or more commonly, modification of stone stripes back through the sequence of stripes and garlands where the slope shallows toward the valley floor. The subsurface structures of eight polygons, two garlands, and two stone stripes were exposed by trenching. The garlands and stone stripes were on a slope lying between a flat-lying raised beach and a very slightly inclined valley floor. The trenching proved the rock-rimmed areas to be three dimensional with limited depth. Within each ring there was a vertical as well as horizontal sorting of soil, sand, and rock fragments, with the finest fractions toward the center. Text Greenland University of Northern Iowa: UNI ScholarWorks Greenland Raised Beach ENVELOPE(163.783,163.783,-74.983,-74.983) |
institution |
Open Polar |
collection |
University of Northern Iowa: UNI ScholarWorks |
op_collection_id |
ftunortherniowa |
language |
English |
description |
This paper describes polygonal frost-patterned ground on level terraces, modification of the polygons by solifluction to garlands on slopes of 5° to 35°, modification of the garlands to rock stripes on slopes of 20° to 45°, collapse of stripes into jumbled rock glaciers on slopes of 35° to 60°, or more commonly, modification of stone stripes back through the sequence of stripes and garlands where the slope shallows toward the valley floor. The subsurface structures of eight polygons, two garlands, and two stone stripes were exposed by trenching. The garlands and stone stripes were on a slope lying between a flat-lying raised beach and a very slightly inclined valley floor. The trenching proved the rock-rimmed areas to be three dimensional with limited depth. Within each ring there was a vertical as well as horizontal sorting of soil, sand, and rock fragments, with the finest fractions toward the center. |
format |
Text |
author |
Enzmann, Robert Duncan |
spellingShingle |
Enzmann, Robert Duncan Morphology of Frost Polygons As Related To Ground Slope in Eastern Greenland |
author_facet |
Enzmann, Robert Duncan |
author_sort |
Enzmann, Robert Duncan |
title |
Morphology of Frost Polygons As Related To Ground Slope in Eastern Greenland |
title_short |
Morphology of Frost Polygons As Related To Ground Slope in Eastern Greenland |
title_full |
Morphology of Frost Polygons As Related To Ground Slope in Eastern Greenland |
title_fullStr |
Morphology of Frost Polygons As Related To Ground Slope in Eastern Greenland |
title_full_unstemmed |
Morphology of Frost Polygons As Related To Ground Slope in Eastern Greenland |
title_sort |
morphology of frost polygons as related to ground slope in eastern greenland |
publisher |
UNI ScholarWorks |
publishDate |
1960 |
url |
https://scholarworks.uni.edu/pias/vol67/iss1/46 https://scholarworks.uni.edu/context/pias/article/2569/viewcontent/46_Morphology_of_Frost_Polygons_As_Related.pdf |
long_lat |
ENVELOPE(163.783,163.783,-74.983,-74.983) |
geographic |
Greenland Raised Beach |
geographic_facet |
Greenland Raised Beach |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Proceedings of the Iowa Academy of Science |
op_relation |
https://scholarworks.uni.edu/pias/vol67/iss1/46 https://scholarworks.uni.edu/context/pias/article/2569/viewcontent/46_Morphology_of_Frost_Polygons_As_Related.pdf |
op_rights |
©1960 Iowa Academy of Science, Inc. |
_version_ |
1774294814381047808 |