Journal article
Millennial-scale glacial climate variability in Southeastern Alaska follows Dansgaard-Oeschger cyclicity
Scientific Reports, Vol.9(1), 7880
2019
DOI: 10.1038/s41598-019-44231-1
Abstract
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.
Details
- Title: Subtitle
- Millennial-scale glacial climate variability in Southeastern Alaska follows Dansgaard-Oeschger cyclicity
- Creators
- Paul S. Wilcox - University of Alaska FairbanksJeffrey A. Dorale - University of IowaJames F. Baichtal - Tongass National ForestChristoph Spötl - Universität InnsbruckSarah J. Fowell - University of Alaska FairbanksR. Lawrence Edwards - University of MinnesotaJohanna L. Kovarik - US Forest Service
- Resource Type
- Journal article
- Publication Details
- Scientific Reports, Vol.9(1), 7880
- DOI
- 10.1038/s41598-019-44231-1
- ISSN
- 2045-2322
- Grant note
- DOI: 10.13039/100005730, name: Alaska Space Grant Program; name: University of Alaska Global Change Grant University of Alaska Geist Fund Alaska Geological Society
- Language
- English
- Date published
- 2019
- Academic Unit
- Earth and Environmental Sciences
- Record Identifier
- 9984229969402771
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