Mountain hazards in the Kanchanjunga area, eastern Nepal: landslides developed on lateral moraines
We examined the distribution, morphological characteristics, timing of occurrence, and possible causes of the landslides developed on the lateral moraines of Kanchanjunga Himal.Such landslides were found at seven sites. The main possibilities of sliding cause were the unloading due to rapid deglacia...
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ftjnepaljo:oai:ojs.pkp.sfu.ca:article/32427 2024-09-30T14:36:22+00:00 Mountain hazards in the Kanchanjunga area, eastern Nepal: landslides developed on lateral moraines Watanabe, Teiji Nakamura, Naohiro Khanal, Narendra R. 2000-12-01 application/pdf https://nepjol.info/index.php/JNGS/article/view/32427 eng eng Nepal Geological Society https://nepjol.info/index.php/JNGS/article/view/32427/25629 https://nepjol.info/index.php/JNGS/article/view/32427 Copyright (c) 2000 Nepal Geological Society Journal of Nepal Geological Society; Vol. 22 (2000); 525–532 2676-1378 0259-1316 Mountain hazard Landslide Deglaciation Permafrost Kanchanjunga area eastern Nepal info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2000 ftjnepaljo 2024-09-18T00:28:58Z We examined the distribution, morphological characteristics, timing of occurrence, and possible causes of the landslides developed on the lateral moraines of Kanchanjunga Himal.Such landslides were found at seven sites. The main possibilities of sliding cause were the unloading due to rapid deglaciation and melting of permafrost. The landslides on the Holocene lateral moraines of the Kanchanjunga Glacier began to occur after the Little Ice Age. This was explained by the following observations: (1) the debris now deposits after the Little Ice Age cover the morainic material displaced by sliding; (2) the landslide scarp continues along the side and front slopes of the Little Ice Age tributary moraine; and (3) the moraine material and trail on it have slid down at places. The deglaciation in the Holocene age, therefore, was not able to cause the landslides. The ground-temperature and BTS measurements, and seismic sounding indicate that the lower limit of the present permafrost exists between 4,850 and 4,890 m on the south-facing slope in the Nupchu Valley. The landslides on the lateral moraines of the Kanchanjunga Glacier (4,760-5,200 m) may be related to the melting of permafrost or ''relict ice'' in the moraines. Article in Journal/Newspaper Ice permafrost Nepal Journals Online (NepJOL) |
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Open Polar |
collection |
Nepal Journals Online (NepJOL) |
op_collection_id |
ftjnepaljo |
language |
English |
topic |
Mountain hazard Landslide Deglaciation Permafrost Kanchanjunga area eastern Nepal |
spellingShingle |
Mountain hazard Landslide Deglaciation Permafrost Kanchanjunga area eastern Nepal Watanabe, Teiji Nakamura, Naohiro Khanal, Narendra R. Mountain hazards in the Kanchanjunga area, eastern Nepal: landslides developed on lateral moraines |
topic_facet |
Mountain hazard Landslide Deglaciation Permafrost Kanchanjunga area eastern Nepal |
description |
We examined the distribution, morphological characteristics, timing of occurrence, and possible causes of the landslides developed on the lateral moraines of Kanchanjunga Himal.Such landslides were found at seven sites. The main possibilities of sliding cause were the unloading due to rapid deglaciation and melting of permafrost. The landslides on the Holocene lateral moraines of the Kanchanjunga Glacier began to occur after the Little Ice Age. This was explained by the following observations: (1) the debris now deposits after the Little Ice Age cover the morainic material displaced by sliding; (2) the landslide scarp continues along the side and front slopes of the Little Ice Age tributary moraine; and (3) the moraine material and trail on it have slid down at places. The deglaciation in the Holocene age, therefore, was not able to cause the landslides. The ground-temperature and BTS measurements, and seismic sounding indicate that the lower limit of the present permafrost exists between 4,850 and 4,890 m on the south-facing slope in the Nupchu Valley. The landslides on the lateral moraines of the Kanchanjunga Glacier (4,760-5,200 m) may be related to the melting of permafrost or ''relict ice'' in the moraines. |
format |
Article in Journal/Newspaper |
author |
Watanabe, Teiji Nakamura, Naohiro Khanal, Narendra R. |
author_facet |
Watanabe, Teiji Nakamura, Naohiro Khanal, Narendra R. |
author_sort |
Watanabe, Teiji |
title |
Mountain hazards in the Kanchanjunga area, eastern Nepal: landslides developed on lateral moraines |
title_short |
Mountain hazards in the Kanchanjunga area, eastern Nepal: landslides developed on lateral moraines |
title_full |
Mountain hazards in the Kanchanjunga area, eastern Nepal: landslides developed on lateral moraines |
title_fullStr |
Mountain hazards in the Kanchanjunga area, eastern Nepal: landslides developed on lateral moraines |
title_full_unstemmed |
Mountain hazards in the Kanchanjunga area, eastern Nepal: landslides developed on lateral moraines |
title_sort |
mountain hazards in the kanchanjunga area, eastern nepal: landslides developed on lateral moraines |
publisher |
Nepal Geological Society |
publishDate |
2000 |
url |
https://nepjol.info/index.php/JNGS/article/view/32427 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Journal of Nepal Geological Society; Vol. 22 (2000); 525–532 2676-1378 0259-1316 |
op_relation |
https://nepjol.info/index.php/JNGS/article/view/32427/25629 https://nepjol.info/index.php/JNGS/article/view/32427 |
op_rights |
Copyright (c) 2000 Nepal Geological Society |
_version_ |
1811639440093741056 |