globalchange  > 影响、适应和脆弱性
DOI: 10.5194/cp-14-687-2018
Scopus记录号: 2-s2.0-85048025871
论文题名:
Synchronizing 10Be in two varved lake sediment records to IntCal13 14C during three grand solar minima
作者: Czymzik M.; Muscheler R.; Adolphi F.; Mekhaldi F.; Dräger N.; Ott F.; Slowinski M.; Blaszkiewicz M.; Aldahan A.; Possnert G.; Brauer A.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2018
卷: 14, 期:5
起始页码: 687
结束页码: 696
语种: 英语
Scopus关键词: beryllium isotope ; calibration ; carbon isotope ; climate variation ; cosmogenic radionuclide ; lacustrine deposit ; paleoclimate ; proxy climate record ; reconstruction ; timescale ; Germany ; Mecklenburg-West Pomerania ; Tiefer See
英文摘要: Timescale uncertainties between paleoclimate reconstructions often inhibit studying the exact timing, spatial expression and driving mechanisms of climate variations. Detecting and aligning the globally common cosmogenic radionuclide production signal via a curve fitting method provides a tool for the quasi-continuous synchronization of paleoclimate archives. In this study, we apply this approach to synchronize 10Be records from varved sediments of Tiefer See and Lake Czechowskie covering the Maunder, Homeric and 5500 aBP grand solar minima with 14C production rates inferred from the IntCal13 calibration curve. Our analyses indicate best fits with 14C production rates when the 10Be records from Tiefer See were shifted for 8 (-12/ + 4) (Maunder Minimum), 31 (-16/ + 12) (Homeric Minimum) and 86 (-22/ + 18) years (5500 aBP grand solar minimum) towards the past. The best fit between the Lake Czechowskie 10Be record for the 5500 aBP grand solar minimum and 14C production was obtained when the 10Be time series was shifted 29 (-8/ + 7) years towards present. No significant fits were detected between the Lake Czechowskie 10Be records for the Maunder and Homeric minima and 14C production, likely due to intensified in-lake sediment resuspension since about 2800 aBP, transporting old 10Be to the coring location. Our results provide a proof of concept for facilitating 10Be in varved lake sediments as a novel synchronization tool required for investigating leads and lags of proxy responses to climate variability. However, they also point to some limitations of 10Be in these archives, mainly connected to in-lake sediment resuspension processes. © 2018 Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109563
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: GFZ-German Research Centre for Geosciences, Section 5.2 Climate Dynamics and Landscape Evolution, Potsdam, 14473, Germany; Leibniz-Institute for Baltic Sea Research Warnemünde (IOW), Marine Geology, Rostock, 18119, Germany; Department of Geology, Quaternary Sciences, Lund University, Lund, 22362, Sweden; Physics Institute, Climate and Environmental Physics, University of Bern, Bern, 3012, Switzerland; Max Planck Institute for the Science of Human History, Jena, 07743, Germany; Polish Academy of Sciences, Institute of Geography and Spatial Organization, Warszawa, 00-818, Poland; Polish Academy of Sciences, Institute of Geography and Spatial Organization, Torun, 87-100, Poland; Department of Geology, United Arab Emirates University, Al Ain, 15551, United Arab Emirates; Tandem Laboratory, Uppsala University, Uppsala, 75120, Sweden

Recommended Citation:
Czymzik M.,Muscheler R.,Adolphi F.,et al. Synchronizing 10Be in two varved lake sediment records to IntCal13 14C during three grand solar minima[J]. Climate of the Past,2018-01-01,14(5)
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