Millennial-scale glacial climate variability in Southeastern Alaska follows Dansgaard-Oeschger cyclicity

A stalagmite from Prince of Wales Island grew episodically between ~75,000 and ~11,100 yr BP; interrupted by seven hiatuses. Hiatuses most likely correspond to permafrost development and a temperature drop of up to 5 °C from modern conditions. Intervals of calcite deposition place tight constraints...

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Autores principales: Wilcox, Paul S., Dorale, Jeffrey A., Baichtal, James F., Spötl, Christoph, Fowell, Sarah J., Edwards, R. Lawrence, Kovarik, Johanna L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6536552/
https://www.ncbi.nlm.nih.gov/pubmed/31133661
http://dx.doi.org/10.1038/s41598-019-44231-1
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author Wilcox, Paul S.
Dorale, Jeffrey A.
Baichtal, James F.
Spötl, Christoph
Fowell, Sarah J.
Edwards, R. Lawrence
Kovarik, Johanna L.
author_facet Wilcox, Paul S.
Dorale, Jeffrey A.
Baichtal, James F.
Spötl, Christoph
Fowell, Sarah J.
Edwards, R. Lawrence
Kovarik, Johanna L.
author_sort Wilcox, Paul S.
collection PubMed
description A stalagmite from Prince of Wales Island grew episodically between ~75,000 and ~11,100 yr BP; interrupted by seven hiatuses. Hiatuses most likely correspond to permafrost development and a temperature drop of up to 5 °C from modern conditions. Intervals of calcite deposition place tight constraints on the timing of mild climatic episodes in Alaska during the last glacial period, when permafrost was absent, allowing water infiltration into the karst system. These periods of calcite deposition are synchronous, within dating uncertainties, with Greenland Interstadials 1, 10, 11, 12c, 14b-14e, 16.1a, 17.2, and 20c.
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spelling pubmed-65365522019-06-06 Millennial-scale glacial climate variability in Southeastern Alaska follows Dansgaard-Oeschger cyclicity Wilcox, Paul S. Dorale, Jeffrey A. Baichtal, James F. Spötl, Christoph Fowell, Sarah J. Edwards, R. Lawrence Kovarik, Johanna L. Sci Rep Article A stalagmite from Prince of Wales Island grew episodically between ~75,000 and ~11,100 yr BP; interrupted by seven hiatuses. Hiatuses most likely correspond to permafrost development and a temperature drop of up to 5 °C from modern conditions. Intervals of calcite deposition place tight constraints on the timing of mild climatic episodes in Alaska during the last glacial period, when permafrost was absent, allowing water infiltration into the karst system. These periods of calcite deposition are synchronous, within dating uncertainties, with Greenland Interstadials 1, 10, 11, 12c, 14b-14e, 16.1a, 17.2, and 20c. Nature Publishing Group UK 2019-05-27 /pmc/articles/PMC6536552/ /pubmed/31133661 http://dx.doi.org/10.1038/s41598-019-44231-1 Text en © The Author(s) 2019 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Wilcox, Paul S.
Dorale, Jeffrey A.
Baichtal, James F.
Spötl, Christoph
Fowell, Sarah J.
Edwards, R. Lawrence
Kovarik, Johanna L.
Millennial-scale glacial climate variability in Southeastern Alaska follows Dansgaard-Oeschger cyclicity
title Millennial-scale glacial climate variability in Southeastern Alaska follows Dansgaard-Oeschger cyclicity
title_full Millennial-scale glacial climate variability in Southeastern Alaska follows Dansgaard-Oeschger cyclicity
title_fullStr Millennial-scale glacial climate variability in Southeastern Alaska follows Dansgaard-Oeschger cyclicity
title_full_unstemmed Millennial-scale glacial climate variability in Southeastern Alaska follows Dansgaard-Oeschger cyclicity
title_short Millennial-scale glacial climate variability in Southeastern Alaska follows Dansgaard-Oeschger cyclicity
title_sort millennial-scale glacial climate variability in southeastern alaska follows dansgaard-oeschger cyclicity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6536552/
https://www.ncbi.nlm.nih.gov/pubmed/31133661
http://dx.doi.org/10.1038/s41598-019-44231-1
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