High-resolution reconstruction of 8.2-ka BP event documented in Père Noël cave, southern Belgium
A distinct shift in δ 18 O, δ 13 C and trace element contents of the Père Noël (PN) stalagmite from southern Belgium revealed an abrupt climatic anomaly at 8.13 ± 0.03 ka BP (before present = before 1950 AD). This anomaly is characterized by a maximum drop in the δ 18 O (−1.4‰ compared the mean) between 8.13 and 8.10 ka BP (±0.03). This drop of δ 18 O coincides with a decrease in δ 13 C and trace element (Sr, Ba and Mg) concentrations suggesting drier conditions. Our precise chronology provides the timing of the outburst of proglacial lakes Agassiz and Ojibway that caused the δ 18 O, δ 13 C an... Mehr ...
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Dokumenttyp: | Artikel |
Erscheinungsdatum: | 2018 |
Reihe/Periodikum: | Allan , M , Fagel , N , van der Lubbe , H J L , Vonhof , H B , Cheng , H , Edwards , R L & Verheyden , S 2018 , ' High-resolution reconstruction of 8.2-ka BP event documented in Père Noël cave, southern Belgium ' , Journal of Quaternary Science , vol. 33 , no. 7 , pp. 840-852 . https://doi.org/10.1002/jqs.3064 |
Schlagwörter: | 8.2-ka BP event / North-West Europe / speleothem / stable isotopes / trace elements / /dk/atira/pure/sustainabledevelopmentgoals/life_below_water / name=SDG 14 - Life Below Water |
Sprache: | Englisch |
Permalink: | https://search.fid-benelux.de/Record/base-28555432 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | https://research.vu.nl/en/publications/b26a8452-3a7e-4ca0-8ceb-d0ffc8e991af |
A distinct shift in δ 18 O, δ 13 C and trace element contents of the Père Noël (PN) stalagmite from southern Belgium revealed an abrupt climatic anomaly at 8.13 ± 0.03 ka BP (before present = before 1950 AD). This anomaly is characterized by a maximum drop in the δ 18 O (−1.4‰ compared the mean) between 8.13 and 8.10 ka BP (±0.03). This drop of δ 18 O coincides with a decrease in δ 13 C and trace element (Sr, Ba and Mg) concentrations suggesting drier conditions. Our precise chronology provides the timing of the outburst of proglacial lakes Agassiz and Ojibway that caused the δ 18 O, δ 13 C and trace elemental anomalies at 8.13–8.10 ± 0.03 ka BP, which corresponds to the 8.2-ka BP event. The PN stalagmite bears δ 18 O values in fluid inclusions that covary with the δ 18 O values in calcite, suggesting that the speleothem calcite δ 18 O primarily reflects variations in the rainfall δ 18 O. Comparison of the PN record with different marine and terrestrial archives during the 8.2-ka BP event shows a good agreement in timing and duration, suggesting that the PN speleothem can be regarded as a valuable proxy to better understand the 8.2-ka BP event.