Structure of the 8200-Year Cold Event Revealed by a Speleothem Trace Element Record
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Publication Date
6-21-2002
Publication Title
Science
Volume Number
296
Issue Number
5576
Abstract
Abrupt first-order shifts in strontium and phosphorus concentrations in stalagmite calcite deposited in western Ireland during the 8200-year event (the major cooling episode 8200 years before the present) are interpreted as responses to a drier climate lasting about 37 years. Both shifts are centered on 8330 ± 80 years before the present, coinciding with a large oxygen isotope anomaly and a change in the calcite petrography. In this very high resolution (monthly) record, antipathetic second-order oscillations in phosphorus and strontium reveal decreased growth rates and increased rainfall seasonality. Growth rate variations within the event reveal a two-pronged structure consistent with recent model simulations.
Document Type
Article
Digital Object Identifier (DOI)
https://doi.org/10.1126/science.1071776
Language
English
Recommended Citation
Baldini, James U. L.; McDermott, Frank; and Fairchild, Ian J., "Structure of the 8200-Year Cold Event Revealed by a Speleothem Trace Element Record" (2002). KIP Articles. 9027.
https://digitalcommons.usf.edu/kip_articles/9027
