Baldini, J. U. L. and McDermott, F. and Fairchild, I. J. (2002) 'Structure of the 8200-year cold event revealed by a speleothem trace element record.', Science., 296 (5576). pp. 2203-2206.
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.
|Keywords:||Oxygen-isotope records, Climate record, Holocene, Greenland, BP, SR, Precipitation, Instability, Stalagmites, Resolution.|
|Full text:||Full text not available from this repository.|
|Publisher Web site:||http://dx.doi.org/10.1126/science.1071776|
|Record Created:||15 Mar 2007|
|Last Modified:||08 Apr 2009 16:28|
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