Sources of sediment found in sea ice from the western Arctic Ocean, new insights into processes of entrainment and drift patterns
[1] The geochemical fingerprint of entrained Fe oxide mineral grains in Arctic Ocean sea ice is used to determine precise sources of this sediment. This approach substantiates the importance of the Laptev Sea as a source of sea ice and even the presence of Russian ice in the Beaufort Sea off Alaska....
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.547.255 2023-05-15T13:42:36+02:00 Sources of sediment found in sea ice from the western Arctic Ocean, new insights into processes of entrainment and drift patterns Dennis A. Darby The Pennsylvania State University CiteSeerX Archives 2003 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.547.255 http://sci.odu.edu/oceanography/directory/faculty/darby/publications/sea ice paper in jgr.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.547.255 http://sci.odu.edu/oceanography/directory/faculty/darby/publications/sea ice paper in jgr.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://sci.odu.edu/oceanography/directory/faculty/darby/publications/sea ice paper in jgr.pdf significant. INDEX TERMS 4207 Oceanography General Arctic and Antarctic oceanography 4219 Oceanography Continental shelf processes 3349 Meteorology and Atmospheric Dynamics Polar meteorology 4558 Oceanography Physical Sediment transport 3339 Meteorology and Atmospheric Dynamics Ocean/atmosphere interactions (0312 4504 KEYWORDS Arctic Ocean sea ice provenance Fe oxide minerals surface circulation ice drift Citation Darby D. A Sources of sediment found in sea ice from the western Arctic Ocean new insights into processes of text 2003 ftciteseerx 2016-01-08T11:20:38Z [1] The geochemical fingerprint of entrained Fe oxide mineral grains in Arctic Ocean sea ice is used to determine precise sources of this sediment. This approach substantiates the importance of the Laptev Sea as a source of sea ice and even the presence of Russian ice in the Beaufort Sea off Alaska. Fe oxide grains from the Laptev Sea were found in floes in the Beaufort Sea, Chukchi Borderland, and central Arctic Ocean, demonstrating the importance of sea ice in distributing itself throughout the Arctic Ocean and the potential of transporting sediment from Russian rivers to North American shelves. Banks Island shelf is the most important source of sediment sampled from ice floes in the Beaufort Sea, northern Chukchi Sea, and Chukchi Borderland area. Although most of the entrained sediment fits the criteria for suspension freezing in shallow water, the presence of winter polynyas with offshore winds and not the size of shallow areas appears to be the critical factor for sea ice entrainment. Seven of the 18 ice floes sampled contained Fe oxide grains from more than one source area. The two most common sources that are found in the same ice floes are Banks Island and the Laptev Sea. Multiple sources in ice floes suggest that either mingling of fragmented ice Text Antarc* Antarctic Arctic Arctic Ocean Banks Island Beaufort Sea Chukchi Chukchi Sea laptev Laptev Sea Sea ice Alaska Unknown Antarctic Arctic Arctic Ocean Chukchi Borderland ENVELOPE(-165.000,-165.000,77.000,77.000) Chukchi Sea Darby ENVELOPE(162.217,162.217,-77.667,-77.667) Laptev Sea |
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English |
topic |
significant. INDEX TERMS 4207 Oceanography General Arctic and Antarctic oceanography 4219 Oceanography Continental shelf processes 3349 Meteorology and Atmospheric Dynamics Polar meteorology 4558 Oceanography Physical Sediment transport 3339 Meteorology and Atmospheric Dynamics Ocean/atmosphere interactions (0312 4504 KEYWORDS Arctic Ocean sea ice provenance Fe oxide minerals surface circulation ice drift Citation Darby D. A Sources of sediment found in sea ice from the western Arctic Ocean new insights into processes of |
spellingShingle |
significant. INDEX TERMS 4207 Oceanography General Arctic and Antarctic oceanography 4219 Oceanography Continental shelf processes 3349 Meteorology and Atmospheric Dynamics Polar meteorology 4558 Oceanography Physical Sediment transport 3339 Meteorology and Atmospheric Dynamics Ocean/atmosphere interactions (0312 4504 KEYWORDS Arctic Ocean sea ice provenance Fe oxide minerals surface circulation ice drift Citation Darby D. A Sources of sediment found in sea ice from the western Arctic Ocean new insights into processes of Dennis A. Darby Sources of sediment found in sea ice from the western Arctic Ocean, new insights into processes of entrainment and drift patterns |
topic_facet |
significant. INDEX TERMS 4207 Oceanography General Arctic and Antarctic oceanography 4219 Oceanography Continental shelf processes 3349 Meteorology and Atmospheric Dynamics Polar meteorology 4558 Oceanography Physical Sediment transport 3339 Meteorology and Atmospheric Dynamics Ocean/atmosphere interactions (0312 4504 KEYWORDS Arctic Ocean sea ice provenance Fe oxide minerals surface circulation ice drift Citation Darby D. A Sources of sediment found in sea ice from the western Arctic Ocean new insights into processes of |
description |
[1] The geochemical fingerprint of entrained Fe oxide mineral grains in Arctic Ocean sea ice is used to determine precise sources of this sediment. This approach substantiates the importance of the Laptev Sea as a source of sea ice and even the presence of Russian ice in the Beaufort Sea off Alaska. Fe oxide grains from the Laptev Sea were found in floes in the Beaufort Sea, Chukchi Borderland, and central Arctic Ocean, demonstrating the importance of sea ice in distributing itself throughout the Arctic Ocean and the potential of transporting sediment from Russian rivers to North American shelves. Banks Island shelf is the most important source of sediment sampled from ice floes in the Beaufort Sea, northern Chukchi Sea, and Chukchi Borderland area. Although most of the entrained sediment fits the criteria for suspension freezing in shallow water, the presence of winter polynyas with offshore winds and not the size of shallow areas appears to be the critical factor for sea ice entrainment. Seven of the 18 ice floes sampled contained Fe oxide grains from more than one source area. The two most common sources that are found in the same ice floes are Banks Island and the Laptev Sea. Multiple sources in ice floes suggest that either mingling of fragmented ice |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Dennis A. Darby |
author_facet |
Dennis A. Darby |
author_sort |
Dennis A. Darby |
title |
Sources of sediment found in sea ice from the western Arctic Ocean, new insights into processes of entrainment and drift patterns |
title_short |
Sources of sediment found in sea ice from the western Arctic Ocean, new insights into processes of entrainment and drift patterns |
title_full |
Sources of sediment found in sea ice from the western Arctic Ocean, new insights into processes of entrainment and drift patterns |
title_fullStr |
Sources of sediment found in sea ice from the western Arctic Ocean, new insights into processes of entrainment and drift patterns |
title_full_unstemmed |
Sources of sediment found in sea ice from the western Arctic Ocean, new insights into processes of entrainment and drift patterns |
title_sort |
sources of sediment found in sea ice from the western arctic ocean, new insights into processes of entrainment and drift patterns |
publishDate |
2003 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.547.255 http://sci.odu.edu/oceanography/directory/faculty/darby/publications/sea ice paper in jgr.pdf |
long_lat |
ENVELOPE(-165.000,-165.000,77.000,77.000) ENVELOPE(162.217,162.217,-77.667,-77.667) |
geographic |
Antarctic Arctic Arctic Ocean Chukchi Borderland Chukchi Sea Darby Laptev Sea |
geographic_facet |
Antarctic Arctic Arctic Ocean Chukchi Borderland Chukchi Sea Darby Laptev Sea |
genre |
Antarc* Antarctic Arctic Arctic Ocean Banks Island Beaufort Sea Chukchi Chukchi Sea laptev Laptev Sea Sea ice Alaska |
genre_facet |
Antarc* Antarctic Arctic Arctic Ocean Banks Island Beaufort Sea Chukchi Chukchi Sea laptev Laptev Sea Sea ice Alaska |
op_source |
http://sci.odu.edu/oceanography/directory/faculty/darby/publications/sea ice paper in jgr.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.547.255 http://sci.odu.edu/oceanography/directory/faculty/darby/publications/sea ice paper in jgr.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766170006022782976 |