Morphology and paleoclimatic significance of Pleistocene Lake Bonneville spits
Abstract Pleistocene Lake Bonneville of western Utah contains a variety of spits associated with shorelines and other features that formed between 21,000 and 12,000 14 C yr BP. Field studies in the low-lying mountain ranges of the central portion of Lake Bonneville identified 17 spits of various typ...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1040.2831 2023-05-15T16:41:01+02:00 Morphology and paleoclimatic significance of Pleistocene Lake Bonneville spits Paul W Jewell The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1040.2831 http://terra.rice.edu/department/faculty/morganj/ESCI536/Readings/Jewell-QuatRes2007.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1040.2831 http://terra.rice.edu/department/faculty/morganj/ESCI536/Readings/Jewell-QuatRes2007.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://terra.rice.edu/department/faculty/morganj/ESCI536/Readings/Jewell-QuatRes2007.pdf text ftciteseerx 2020-03-08T01:23:22Z Abstract Pleistocene Lake Bonneville of western Utah contains a variety of spits associated with shorelines and other features that formed between 21,000 and 12,000 14 C yr BP. Field studies in the low-lying mountain ranges of the central portion of Lake Bonneville identified 17 spits of various types. The spits are connected to small mountain ranges and islands, vary in size from 0.02 to 0.5 km 2 , and are composed of coarsegrained, well-rounded, poorly-sorted sedimentary material. Sixteen of the 17 spits have a northeasterly to southwesterly orientation implying that winds were from the northwest to northeast, approximately 180°out of phase with modern winds in the eastern Great Basin. Lake Bonneville spit orientation is best explained as the result of persistent northerly winds caused by the high atmospheric pressure cell of the continental ice sheet and passage of low pressure extratropical storms south of the lake. Similar, strong persistent winds are a common feature of modern continental ice sheets and passing low pressure systems. If so, the North American jet stream tracked south of Lake Bonneville as recently as 12,000 14 C yr BP, well past the height of the last glacial maximum. Text Ice Sheet Unknown |
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Abstract Pleistocene Lake Bonneville of western Utah contains a variety of spits associated with shorelines and other features that formed between 21,000 and 12,000 14 C yr BP. Field studies in the low-lying mountain ranges of the central portion of Lake Bonneville identified 17 spits of various types. The spits are connected to small mountain ranges and islands, vary in size from 0.02 to 0.5 km 2 , and are composed of coarsegrained, well-rounded, poorly-sorted sedimentary material. Sixteen of the 17 spits have a northeasterly to southwesterly orientation implying that winds were from the northwest to northeast, approximately 180°out of phase with modern winds in the eastern Great Basin. Lake Bonneville spit orientation is best explained as the result of persistent northerly winds caused by the high atmospheric pressure cell of the continental ice sheet and passage of low pressure extratropical storms south of the lake. Similar, strong persistent winds are a common feature of modern continental ice sheets and passing low pressure systems. If so, the North American jet stream tracked south of Lake Bonneville as recently as 12,000 14 C yr BP, well past the height of the last glacial maximum. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Paul W Jewell |
spellingShingle |
Paul W Jewell Morphology and paleoclimatic significance of Pleistocene Lake Bonneville spits |
author_facet |
Paul W Jewell |
author_sort |
Paul W Jewell |
title |
Morphology and paleoclimatic significance of Pleistocene Lake Bonneville spits |
title_short |
Morphology and paleoclimatic significance of Pleistocene Lake Bonneville spits |
title_full |
Morphology and paleoclimatic significance of Pleistocene Lake Bonneville spits |
title_fullStr |
Morphology and paleoclimatic significance of Pleistocene Lake Bonneville spits |
title_full_unstemmed |
Morphology and paleoclimatic significance of Pleistocene Lake Bonneville spits |
title_sort |
morphology and paleoclimatic significance of pleistocene lake bonneville spits |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1040.2831 http://terra.rice.edu/department/faculty/morganj/ESCI536/Readings/Jewell-QuatRes2007.pdf |
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Ice Sheet |
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Ice Sheet |
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http://terra.rice.edu/department/faculty/morganj/ESCI536/Readings/Jewell-QuatRes2007.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1040.2831 http://terra.rice.edu/department/faculty/morganj/ESCI536/Readings/Jewell-QuatRes2007.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766031456006569984 |