Incipient Glacier Development within Katmai Caldera, Alaska
Abstract An unusual opportunity for the study of glaciers in the process of development is afforded in Katmaicaldera in south-western Alaska. A violent eruption in 1912 destroyed the summit of glacier-clad Mount Katmai, creating a caldera 4 km. wide and 800 m. deep. Ice cliffs produced by beheading...
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Cambridge University Press (CUP)
1957
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Online Access: | http://dx.doi.org/10.1017/s0022143000024643 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000024643 |
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crcambridgeupr:10.1017/s0022143000024643 2024-03-03T08:44:34+00:00 Incipient Glacier Development within Katmai Caldera, Alaska Muller, E. H. Coulter, H. W. 1957 http://dx.doi.org/10.1017/s0022143000024643 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000024643 en eng Cambridge University Press (CUP) Journal of Glaciology volume 3, issue 21, page 13-17 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1957 crcambridgeupr https://doi.org/10.1017/s0022143000024643 2024-02-08T08:39:08Z Abstract An unusual opportunity for the study of glaciers in the process of development is afforded in Katmaicaldera in south-western Alaska. A violent eruption in 1912 destroyed the summit of glacier-clad Mount Katmai, creating a caldera 4 km. wide and 800 m. deep. Ice cliffs produced by beheading of the glaciers have since thinned and shrunk away from the rim of the caldera, except in the south-west. There, local reversal of direction of movement has resulted in an ice fall which descends part way down the crater wall. In the past thirty years two small glaciers have formed, near 1525 m. above sea level, within the caldera on large masses of slumped wall-rock below the north and south rims respectively. Elsewhere the sheer walls of the crater descend so steeply to the level of the caldera lake that permanent snowbanks cannot accumulate. The lake, which continues to rise at a rate of more than five meters per year, is at present the primary deterring factor in glacier development in the caldera. Article in Journal/Newspaper glacier glaciers Journal of Glaciology Alaska Cambridge University Press Journal of Glaciology 3 21 13 17 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Muller, E. H. Coulter, H. W. Incipient Glacier Development within Katmai Caldera, Alaska |
topic_facet |
Earth-Surface Processes |
description |
Abstract An unusual opportunity for the study of glaciers in the process of development is afforded in Katmaicaldera in south-western Alaska. A violent eruption in 1912 destroyed the summit of glacier-clad Mount Katmai, creating a caldera 4 km. wide and 800 m. deep. Ice cliffs produced by beheading of the glaciers have since thinned and shrunk away from the rim of the caldera, except in the south-west. There, local reversal of direction of movement has resulted in an ice fall which descends part way down the crater wall. In the past thirty years two small glaciers have formed, near 1525 m. above sea level, within the caldera on large masses of slumped wall-rock below the north and south rims respectively. Elsewhere the sheer walls of the crater descend so steeply to the level of the caldera lake that permanent snowbanks cannot accumulate. The lake, which continues to rise at a rate of more than five meters per year, is at present the primary deterring factor in glacier development in the caldera. |
format |
Article in Journal/Newspaper |
author |
Muller, E. H. Coulter, H. W. |
author_facet |
Muller, E. H. Coulter, H. W. |
author_sort |
Muller, E. H. |
title |
Incipient Glacier Development within Katmai Caldera, Alaska |
title_short |
Incipient Glacier Development within Katmai Caldera, Alaska |
title_full |
Incipient Glacier Development within Katmai Caldera, Alaska |
title_fullStr |
Incipient Glacier Development within Katmai Caldera, Alaska |
title_full_unstemmed |
Incipient Glacier Development within Katmai Caldera, Alaska |
title_sort |
incipient glacier development within katmai caldera, alaska |
publisher |
Cambridge University Press (CUP) |
publishDate |
1957 |
url |
http://dx.doi.org/10.1017/s0022143000024643 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000024643 |
genre |
glacier glaciers Journal of Glaciology Alaska |
genre_facet |
glacier glaciers Journal of Glaciology Alaska |
op_source |
Journal of Glaciology volume 3, issue 21, page 13-17 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000024643 |
container_title |
Journal of Glaciology |
container_volume |
3 |
container_issue |
21 |
container_start_page |
13 |
op_container_end_page |
17 |
_version_ |
1792500056737185792 |