Geomorphic Expression of Abrupt Climate Change in Southwestern North America at the Glacial Termination
Abstract Eolian and subaqueous landforms composed of gypsum sand provide geomorphic evidence for a wet episode at the termination of glacial climate in southwestern North America. Drying of pluvial Lake Estancia, central New Mexico, occurred after ca. 12,000 14 C yr B.P. Thereafter, eolian landforms...
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Cambridge University Press (CUP)
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crcambridgeupr:10.1006/qres.2002.2323 2024-06-09T07:48:11+00:00 Geomorphic Expression of Abrupt Climate Change in Southwestern North America at the Glacial Termination Anderson, Roger Y. Allen, Bruce D. Menking, Kirsten M. 2002 http://dx.doi.org/10.1006/qres.2002.2323 http://api.elsevier.com/content/article/PII:S0033589402923239?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589402923239?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400010929 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 57, issue 3, page 371-381 ISSN 0033-5894 1096-0287 journal-article 2002 crcambridgeupr https://doi.org/10.1006/qres.2002.2323 2024-05-15T13:01:46Z Abstract Eolian and subaqueous landforms composed of gypsum sand provide geomorphic evidence for a wet episode at the termination of glacial climate in southwestern North America. Drying of pluvial Lake Estancia, central New Mexico, occurred after ca. 12,000 14 C yr B.P. Thereafter, eolian landforms on the old lake floor, constructed of gypsum sand, were overridden by rising lake water, modified by subaqueous processes, and organized into beach ridges along the lake's eastern shore. Preservation of preexisting eolian landforms in the shallow lake suggests abupt changes in lake level and climate. Available radiocarbon ages suggest that the final highstand recorded by beach ridges may have developed during the Younger Dryas (YD) stade. The beach ridges provide information about lake surface area, which was 45% of the lake area reached during the maximum highstands of the late Pleistocene. A similar proportional response has been reported for YD climate changes outside the North Atlantic region. Article in Journal/Newspaper North Atlantic Cambridge University Press Quaternary Research 57 3 371 381 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Eolian and subaqueous landforms composed of gypsum sand provide geomorphic evidence for a wet episode at the termination of glacial climate in southwestern North America. Drying of pluvial Lake Estancia, central New Mexico, occurred after ca. 12,000 14 C yr B.P. Thereafter, eolian landforms on the old lake floor, constructed of gypsum sand, were overridden by rising lake water, modified by subaqueous processes, and organized into beach ridges along the lake's eastern shore. Preservation of preexisting eolian landforms in the shallow lake suggests abupt changes in lake level and climate. Available radiocarbon ages suggest that the final highstand recorded by beach ridges may have developed during the Younger Dryas (YD) stade. The beach ridges provide information about lake surface area, which was 45% of the lake area reached during the maximum highstands of the late Pleistocene. A similar proportional response has been reported for YD climate changes outside the North Atlantic region. |
format |
Article in Journal/Newspaper |
author |
Anderson, Roger Y. Allen, Bruce D. Menking, Kirsten M. |
spellingShingle |
Anderson, Roger Y. Allen, Bruce D. Menking, Kirsten M. Geomorphic Expression of Abrupt Climate Change in Southwestern North America at the Glacial Termination |
author_facet |
Anderson, Roger Y. Allen, Bruce D. Menking, Kirsten M. |
author_sort |
Anderson, Roger Y. |
title |
Geomorphic Expression of Abrupt Climate Change in Southwestern North America at the Glacial Termination |
title_short |
Geomorphic Expression of Abrupt Climate Change in Southwestern North America at the Glacial Termination |
title_full |
Geomorphic Expression of Abrupt Climate Change in Southwestern North America at the Glacial Termination |
title_fullStr |
Geomorphic Expression of Abrupt Climate Change in Southwestern North America at the Glacial Termination |
title_full_unstemmed |
Geomorphic Expression of Abrupt Climate Change in Southwestern North America at the Glacial Termination |
title_sort |
geomorphic expression of abrupt climate change in southwestern north america at the glacial termination |
publisher |
Cambridge University Press (CUP) |
publishDate |
2002 |
url |
http://dx.doi.org/10.1006/qres.2002.2323 http://api.elsevier.com/content/article/PII:S0033589402923239?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589402923239?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400010929 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Quaternary Research volume 57, issue 3, page 371-381 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1006/qres.2002.2323 |
container_title |
Quaternary Research |
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57 |
container_issue |
3 |
container_start_page |
371 |
op_container_end_page |
381 |
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1801379785576808448 |