Publication detailsBaldini, J.U.L., McDermott, F. & Fairchild, I.J. (2002). Structure of the 8200-year cold event revealed by a speleothem trace element record. Science 296(5576): 2203-2206.
- Publication type: Journal Article
- ISSN/ISBN: 0036-8075, 1095-9203
- DOI: 10.1126/science.1071776
- Keywords: OXYGEN-ISOTOPE RECORDS; CLIMATE RECORD; HOLOCENE; GREENLAND; BP; SR;PRECIPITATION; INSTABILITY; STALAGMITES; RESOLUTION
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
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.
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