A high-resolution speleothem proxy record of the Late Glacial in the European Alps: extending the NALPS19 record until the beginning of the Holocene

Previous research has shown that speleothems from the northern rim of the European Alps captured submillennial-scale climate change during the last glacial period with exceptional sensitivity and resolution, mimicking Greenland ice-core records. Here we extend this so-called NALPS19 record across th...

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Bibliographic Details
Published in:Journal of Quaternary Science
Main Authors: Li, Hanying, Spoetl, Christoph, Cheng, Hai
Format: Report
Language:English
Published: WILEY 2020
Subjects:
Alps
Late Glacial
rapid climate change
speleothems
Younger Dryas
CLIMATE RECORD
YOUNGER-DRYAS
LAST DEGLACIATION
SWISS ALPS
HALF-LIVES
STALAGMITE
GREENLAND
SEDIMENTS
RECONSTRUCTION
PALEOCLIMATE
Physical Geography
Geology
Geography
Physical
Geosciences
Multidisciplinary
Greenland
Greenland ice core
Greenland Ice core Project
Greenland ice cores
ice core
NGRIP
North Greenland
North Greenland Ice Core Project
Online Access:http://ir.ieecas.cn/handle/361006/15488
http://ir.ieecas.cn/handle/361006/15489
https://doi.org/10.1002/jqs.3255
Description
Summary:Previous research has shown that speleothems from the northern rim of the European Alps captured submillennial-scale climate change during the last glacial period with exceptional sensitivity and resolution, mimicking Greenland ice-core records. Here we extend this so-called NALPS19 record across the Late Glacial using two stalagmites which grew continuously into the Holocene. Both specimens show the same high-amplitude delta O-18 signal as Greenland ice cores down to decadal resolution. The start of the warming at the onset of the equivalent of Greenland Interstadial (GI) GI-1e at 14.66 +/- 0.18 ka agrees with the North Greenland Ice Core Project (NGRIP) (14.64 +/- 0.28 ka) and comprised a temperature rise of about 5-6 degrees C. The transition from the equivalent of GI-1a into the equivalent of Greenland Stadial (GS) GS-1 (broadly equivalent to the Younger Dryas) commenced at 13.02 +/- 0.13 ka which is consistent with NGRIP (12.80 +/- 0.26 ka) within errors. The onset of the Holocene started at 11.78 +/- 0.14 ka (11.65 +/- 0.10 ka at NGRIP) and involved a warming of about 4-5 degrees C. In contrast to delta O-18, delta C-13 values show no response to (sub)millennial climate shifts due to strong rock-buffering and only record a long-term trend of soil development starting with the rapid warming at 14.7 ka.

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