Late Holocene Activity of Sherman and Sheridan Glaciers, Prince William Sound, Alaska
Two adjacent glaciers in the Chugach Mountains of south-central Alaska have markedly different histories on decadal to perhaps centennial timescales. Sheridan Glacier has advanced and retreated hundreds of metres during the latest Holocene. Its recent fluctuations have markedly altered local base le...
Published in: | Quaternary Science Reviews |
---|---|
Main Authors: | , , |
Format: | Text |
Language: | unknown |
Published: |
UW Tacoma Digital Commons
2018
|
Subjects: | |
Online Access: | https://digitalcommons.tacoma.uw.edu/ias_pub/903 https://doi.org/10.1016/j.quascirev.2018.07.016 |
id |
ftuniwashingtaco:oai:digitalcommons.tacoma.uw.edu:ias_pub-1904 |
---|---|
record_format |
openpolar |
spelling |
ftuniwashingtaco:oai:digitalcommons.tacoma.uw.edu:ias_pub-1904 2023-09-05T13:19:35+02:00 Late Holocene Activity of Sherman and Sheridan Glaciers, Prince William Sound, Alaska Shugar, D.H. Clague, J.J. McSaveney, M.J. 2018-01-01T08:00:00Z https://digitalcommons.tacoma.uw.edu/ias_pub/903 https://doi.org/10.1016/j.quascirev.2018.07.016 unknown UW Tacoma Digital Commons https://digitalcommons.tacoma.uw.edu/ias_pub/903 doi:10.1016/j.quascirev.2018.07.016 SIAS Faculty Publications Alaska Climate change Glacial geomorphology Glaciation Glacier-dammed lake Holocene Radiocarbon dating Sedimentology Sheridan Glacier Sherman Glacier text 2018 ftuniwashingtaco https://doi.org/10.1016/j.quascirev.2018.07.016 2023-08-21T14:16:50Z Two adjacent glaciers in the Chugach Mountains of south-central Alaska have markedly different histories on decadal to perhaps centennial timescales. Sheridan Glacier has advanced and retreated hundreds of metres during the latest Holocene. Its recent fluctuations have markedly altered local base level of Sherman River, which drains Sherman Glacier and flows into Sheridan Lake. Sheridan Glacier advanced to its greatest extent during the Little Ice Age, raising base level of Sherman River and inducing aggradation there of up to 17 m of sediment. Retreat of Sheridan Glacier formed a series of lakes that have coalesced. As lower lake outlets have become available, base level of Sherman River has dropped, resulting in the evacuation of substantial volumes of sediment from Sherman River valley. In about 2000, the terminus of Sheridan Glacier began to disintegrate; retreat accelerated dramatically in 2010. By 2016, the glacier had retreated an average of 600 m from its 2010 terminus, although some areas retreated up to 1.9 km and others did not retreat at all. Meanwhile, Sherman Glacier continued a slow advance initiated by a rock avalanche that blanketed much of its ablation area in the 1964 Alaska earthquake. © 2018 Elsevier Ltd Text glacier glaciers Alaska University of Washington: UW Tacoma Digital Commons Dammed Lake ENVELOPE(-68.258,-68.258,68.496,68.496) Lower Lake ENVELOPE(-129.290,-129.290,53.428,53.428) Quaternary Science Reviews 194 116 127 |
institution |
Open Polar |
collection |
University of Washington: UW Tacoma Digital Commons |
op_collection_id |
ftuniwashingtaco |
language |
unknown |
topic |
Alaska Climate change Glacial geomorphology Glaciation Glacier-dammed lake Holocene Radiocarbon dating Sedimentology Sheridan Glacier Sherman Glacier |
spellingShingle |
Alaska Climate change Glacial geomorphology Glaciation Glacier-dammed lake Holocene Radiocarbon dating Sedimentology Sheridan Glacier Sherman Glacier Shugar, D.H. Clague, J.J. McSaveney, M.J. Late Holocene Activity of Sherman and Sheridan Glaciers, Prince William Sound, Alaska |
topic_facet |
Alaska Climate change Glacial geomorphology Glaciation Glacier-dammed lake Holocene Radiocarbon dating Sedimentology Sheridan Glacier Sherman Glacier |
description |
Two adjacent glaciers in the Chugach Mountains of south-central Alaska have markedly different histories on decadal to perhaps centennial timescales. Sheridan Glacier has advanced and retreated hundreds of metres during the latest Holocene. Its recent fluctuations have markedly altered local base level of Sherman River, which drains Sherman Glacier and flows into Sheridan Lake. Sheridan Glacier advanced to its greatest extent during the Little Ice Age, raising base level of Sherman River and inducing aggradation there of up to 17 m of sediment. Retreat of Sheridan Glacier formed a series of lakes that have coalesced. As lower lake outlets have become available, base level of Sherman River has dropped, resulting in the evacuation of substantial volumes of sediment from Sherman River valley. In about 2000, the terminus of Sheridan Glacier began to disintegrate; retreat accelerated dramatically in 2010. By 2016, the glacier had retreated an average of 600 m from its 2010 terminus, although some areas retreated up to 1.9 km and others did not retreat at all. Meanwhile, Sherman Glacier continued a slow advance initiated by a rock avalanche that blanketed much of its ablation area in the 1964 Alaska earthquake. © 2018 Elsevier Ltd |
format |
Text |
author |
Shugar, D.H. Clague, J.J. McSaveney, M.J. |
author_facet |
Shugar, D.H. Clague, J.J. McSaveney, M.J. |
author_sort |
Shugar, D.H. |
title |
Late Holocene Activity of Sherman and Sheridan Glaciers, Prince William Sound, Alaska |
title_short |
Late Holocene Activity of Sherman and Sheridan Glaciers, Prince William Sound, Alaska |
title_full |
Late Holocene Activity of Sherman and Sheridan Glaciers, Prince William Sound, Alaska |
title_fullStr |
Late Holocene Activity of Sherman and Sheridan Glaciers, Prince William Sound, Alaska |
title_full_unstemmed |
Late Holocene Activity of Sherman and Sheridan Glaciers, Prince William Sound, Alaska |
title_sort |
late holocene activity of sherman and sheridan glaciers, prince william sound, alaska |
publisher |
UW Tacoma Digital Commons |
publishDate |
2018 |
url |
https://digitalcommons.tacoma.uw.edu/ias_pub/903 https://doi.org/10.1016/j.quascirev.2018.07.016 |
long_lat |
ENVELOPE(-68.258,-68.258,68.496,68.496) ENVELOPE(-129.290,-129.290,53.428,53.428) |
geographic |
Dammed Lake Lower Lake |
geographic_facet |
Dammed Lake Lower Lake |
genre |
glacier glaciers Alaska |
genre_facet |
glacier glaciers Alaska |
op_source |
SIAS Faculty Publications |
op_relation |
https://digitalcommons.tacoma.uw.edu/ias_pub/903 doi:10.1016/j.quascirev.2018.07.016 |
op_doi |
https://doi.org/10.1016/j.quascirev.2018.07.016 |
container_title |
Quaternary Science Reviews |
container_volume |
194 |
container_start_page |
116 |
op_container_end_page |
127 |
_version_ |
1776200366310817792 |