Neoglacial fluctuations of the Natazhat and Klutlan Glaciers, Yukon Territory, Canada
The Natazhat and Klutlan Glaciers are surging valley glaciers whose present termini are located at the northern edge of the St. Elias Mountains. Both glaciers have massive ice-cored Neoglacial morainal complexes extending down-valley from their ice termini. At least six separate Neoglacial moraines...
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1970
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crcansciencepubl:10.1139/e70-118 2023-12-17T10:30:36+01:00 Neoglacial fluctuations of the Natazhat and Klutlan Glaciers, Yukon Territory, Canada Rampton, Vern 1970 http://dx.doi.org/10.1139/e70-118 http://www.nrcresearchpress.com/doi/pdf/10.1139/e70-118 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 7, issue 5, page 1236-1263 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1970 crcansciencepubl https://doi.org/10.1139/e70-118 2023-11-19T13:39:36Z The Natazhat and Klutlan Glaciers are surging valley glaciers whose present termini are located at the northern edge of the St. Elias Mountains. Both glaciers have massive ice-cored Neoglacial morainal complexes extending down-valley from their ice termini. At least six separate Neoglacial moraines adjacent the Klutlan Glacier and four adjacent the Natazhat Glacier have been identified from changes in the geomorphic, pedologic, limnologic, vegetational, dendrochronologic, and lichenometric characteristics across the morainal complexes. Dating of the individual moraines by lichenometry, dendrochronology, and 14 C implies that most were constructed within the last 550 years, although both glaciers have been relatively inactive near their termini since 1947.Stratigraphy and 14 C dates suggest that the initial Neoglacial advance of the Natazhat Glacier near its Neoglacial maximum occurred ca. 3300 B.P. and that of the Klutlan Glacier ca. 1520 B.P.Intervals during which the glaciers constructed a number of moraines near their Neoglacial maxima probably were caused by cool summer temperatures, even though individual moraines were formed by glacial surges. A number of factors make impossible precise dating of the intervals of cool summer temperatures. Article in Journal/Newspaper glacier* Yukon Canadian Science Publishing (via Crossref) Yukon Canada Klutlan Glacier ENVELOPE(-140.604,-140.604,61.499,61.499) Natazhat Glacier ENVELOPE(-140.904,-140.904,61.566,61.566) Canadian Journal of Earth Sciences 7 5 1236 1263 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Rampton, Vern Neoglacial fluctuations of the Natazhat and Klutlan Glaciers, Yukon Territory, Canada |
topic_facet |
General Earth and Planetary Sciences |
description |
The Natazhat and Klutlan Glaciers are surging valley glaciers whose present termini are located at the northern edge of the St. Elias Mountains. Both glaciers have massive ice-cored Neoglacial morainal complexes extending down-valley from their ice termini. At least six separate Neoglacial moraines adjacent the Klutlan Glacier and four adjacent the Natazhat Glacier have been identified from changes in the geomorphic, pedologic, limnologic, vegetational, dendrochronologic, and lichenometric characteristics across the morainal complexes. Dating of the individual moraines by lichenometry, dendrochronology, and 14 C implies that most were constructed within the last 550 years, although both glaciers have been relatively inactive near their termini since 1947.Stratigraphy and 14 C dates suggest that the initial Neoglacial advance of the Natazhat Glacier near its Neoglacial maximum occurred ca. 3300 B.P. and that of the Klutlan Glacier ca. 1520 B.P.Intervals during which the glaciers constructed a number of moraines near their Neoglacial maxima probably were caused by cool summer temperatures, even though individual moraines were formed by glacial surges. A number of factors make impossible precise dating of the intervals of cool summer temperatures. |
format |
Article in Journal/Newspaper |
author |
Rampton, Vern |
author_facet |
Rampton, Vern |
author_sort |
Rampton, Vern |
title |
Neoglacial fluctuations of the Natazhat and Klutlan Glaciers, Yukon Territory, Canada |
title_short |
Neoglacial fluctuations of the Natazhat and Klutlan Glaciers, Yukon Territory, Canada |
title_full |
Neoglacial fluctuations of the Natazhat and Klutlan Glaciers, Yukon Territory, Canada |
title_fullStr |
Neoglacial fluctuations of the Natazhat and Klutlan Glaciers, Yukon Territory, Canada |
title_full_unstemmed |
Neoglacial fluctuations of the Natazhat and Klutlan Glaciers, Yukon Territory, Canada |
title_sort |
neoglacial fluctuations of the natazhat and klutlan glaciers, yukon territory, canada |
publisher |
Canadian Science Publishing |
publishDate |
1970 |
url |
http://dx.doi.org/10.1139/e70-118 http://www.nrcresearchpress.com/doi/pdf/10.1139/e70-118 |
long_lat |
ENVELOPE(-140.604,-140.604,61.499,61.499) ENVELOPE(-140.904,-140.904,61.566,61.566) |
geographic |
Yukon Canada Klutlan Glacier Natazhat Glacier |
geographic_facet |
Yukon Canada Klutlan Glacier Natazhat Glacier |
genre |
glacier* Yukon |
genre_facet |
glacier* Yukon |
op_source |
Canadian Journal of Earth Sciences volume 7, issue 5, page 1236-1263 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e70-118 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
7 |
container_issue |
5 |
container_start_page |
1236 |
op_container_end_page |
1263 |
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1785583580301230080 |