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Structure of the 8200-year cold event revealed by a speleothem trace element record.

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.

Item Type:Article
Additional Information:
Keywords:Oxygen-isotope records, Climate record, Holocene, Greenland, BP, SR, Precipitation, Instability, Stalagmites, Resolution.
Full text:Full text not available from this repository.
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Date accepted:No date available
Date deposited:No date available
Date of first online publication:June 2002
Date first made open access:No date available

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