MECHANISM FOR THE FORMATION OF INNER MORAINES FOUND NEAR THE EDGE OF COLD ICE CAPS
A new mechanism is described which explains the formation of moraines in the ablation areas of cold ice caps. The mechanism involves the freezing of water onto the bottom surface of an ice cap. This water comes from regions of the bottom surface where the combination of the geothermal heat and the h...
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ftdtic:AD0281708 2023-05-15T15:35:26+02:00 MECHANISM FOR THE FORMATION OF INNER MORAINES FOUND NEAR THE EDGE OF COLD ICE CAPS Weertman,Johannes COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H 1962-02 text/html http://www.dtic.mil/docs/citations/AD0281708 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0281708 en eng http://www.dtic.mil/docs/citations/AD0281708 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS *ICE DEPOSITS FREEZING GLACIERS MELTING WATER MORAINES ICECAPS Text 1962 ftdtic 2016-02-18T15:41:58Z A new mechanism is described which explains the formation of moraines in the ablation areas of cold ice caps. The mechanism involves the freezing of water onto the bottom surface of an ice cap. This water comes from regions of the bottom surface where the combination of the geothermal heat and the heat produced by sliding of ice over the bed is sufficient to melt ice. A number of criticisms are made of the shear hypothesis, which has been advanced to explain moraines occurring on Baffin Island and near Thule, Greenland. It is concluded that this older hypothesis may be inadequate to account for these moraines. Although in theory the mechanism proposed here undoubtedly would lead to the formation of moraines, the existing field data are insufficient to prove conclusively that actual moraines have originated in this way. (Author) Text Baffin Island Baffin Greenland Ice cap Thule Defense Technical Information Center: DTIC Technical Reports database Baffin Island Greenland |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
*ICE DEPOSITS FREEZING GLACIERS MELTING WATER MORAINES ICECAPS |
spellingShingle |
*ICE DEPOSITS FREEZING GLACIERS MELTING WATER MORAINES ICECAPS Weertman,Johannes MECHANISM FOR THE FORMATION OF INNER MORAINES FOUND NEAR THE EDGE OF COLD ICE CAPS |
topic_facet |
*ICE DEPOSITS FREEZING GLACIERS MELTING WATER MORAINES ICECAPS |
description |
A new mechanism is described which explains the formation of moraines in the ablation areas of cold ice caps. The mechanism involves the freezing of water onto the bottom surface of an ice cap. This water comes from regions of the bottom surface where the combination of the geothermal heat and the heat produced by sliding of ice over the bed is sufficient to melt ice. A number of criticisms are made of the shear hypothesis, which has been advanced to explain moraines occurring on Baffin Island and near Thule, Greenland. It is concluded that this older hypothesis may be inadequate to account for these moraines. Although in theory the mechanism proposed here undoubtedly would lead to the formation of moraines, the existing field data are insufficient to prove conclusively that actual moraines have originated in this way. (Author) |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H |
format |
Text |
author |
Weertman,Johannes |
author_facet |
Weertman,Johannes |
author_sort |
Weertman,Johannes |
title |
MECHANISM FOR THE FORMATION OF INNER MORAINES FOUND NEAR THE EDGE OF COLD ICE CAPS |
title_short |
MECHANISM FOR THE FORMATION OF INNER MORAINES FOUND NEAR THE EDGE OF COLD ICE CAPS |
title_full |
MECHANISM FOR THE FORMATION OF INNER MORAINES FOUND NEAR THE EDGE OF COLD ICE CAPS |
title_fullStr |
MECHANISM FOR THE FORMATION OF INNER MORAINES FOUND NEAR THE EDGE OF COLD ICE CAPS |
title_full_unstemmed |
MECHANISM FOR THE FORMATION OF INNER MORAINES FOUND NEAR THE EDGE OF COLD ICE CAPS |
title_sort |
mechanism for the formation of inner moraines found near the edge of cold ice caps |
publishDate |
1962 |
url |
http://www.dtic.mil/docs/citations/AD0281708 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0281708 |
geographic |
Baffin Island Greenland |
geographic_facet |
Baffin Island Greenland |
genre |
Baffin Island Baffin Greenland Ice cap Thule |
genre_facet |
Baffin Island Baffin Greenland Ice cap Thule |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0281708 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766365762607382528 |