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A varved lake sediment record of the 10Be solar activity proxy for the Lateglacial-Holocene transition

Czymzik, Markus LU ; Adolphi, Florian LU ; Muscheler, Raimund LU ; Mekhaldi, Florian LU ; Martin-Puertas, Celia; Aldahan, Ala; Possnert, Göran and Brauer, Achim (2016) In Quaternary Science Reviews 153. p.31-39
Abstract

Solar modulated variations in cosmogenic radionuclide production provide both information on past changes in the activity of the Sun and a global synchronization tool. However, to date the use of cosmogenic radionuclides for these applications is almost exclusively based on 10Be records from ice cores and 14C time-series from tree rings, all including archive-specific limitations. We present the first 10Be record from annually laminated (varved) lake sediments for the Lateglacial-Holocene transition from Meerfelder Maar. We quantify environmental influences on the catchment and, consequently, 10Be deposition using a new approach based on regression analyses between our 10Be record... (More)

Solar modulated variations in cosmogenic radionuclide production provide both information on past changes in the activity of the Sun and a global synchronization tool. However, to date the use of cosmogenic radionuclides for these applications is almost exclusively based on 10Be records from ice cores and 14C time-series from tree rings, all including archive-specific limitations. We present the first 10Be record from annually laminated (varved) lake sediments for the Lateglacial-Holocene transition from Meerfelder Maar. We quantify environmental influences on the catchment and, consequently, 10Be deposition using a new approach based on regression analyses between our 10Be record and environmental proxy time-series from the same archive. Our analyses suggest that environmental influences contribute to up to 37% of the variability in our 10Be record, but cannot be the main explanation for major 10Be excursions. Corrected for these environmental influences, our 10Be record is interpreted to dominantly reflect changes in solar modulated cosmogenic radionuclide production. The preservation of a solar production signal in 10Be from varved lake sediments highlights the largely unexplored potential of these archives for solar activity reconstruction, as global synchronization tool and, thus, for more robust paleoclimate studies.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Be, Solar activity, Time-scales, Varved lake sediments
in
Quaternary Science Reviews
volume
153
pages
9 pages
publisher
Elsevier
external identifiers
  • scopus:84992751332
  • wos:000389116000003
ISSN
0277-3791
DOI
10.1016/j.quascirev.2016.10.007
language
English
LU publication?
yes
id
0aa3e3bd-6296-4f3c-bcff-d304c1e3b4b5
date added to LUP
2016-11-11 12:48:49
date last changed
2017-09-18 11:30:00
@article{0aa3e3bd-6296-4f3c-bcff-d304c1e3b4b5,
  abstract     = {<p>Solar modulated variations in cosmogenic radionuclide production provide both information on past changes in the activity of the Sun and a global synchronization tool. However, to date the use of cosmogenic radionuclides for these applications is almost exclusively based on <sup>10</sup>Be records from ice cores and <sup>14</sup>C time-series from tree rings, all including archive-specific limitations. We present the first <sup>10</sup>Be record from annually laminated (varved) lake sediments for the Lateglacial-Holocene transition from Meerfelder Maar. We quantify environmental influences on the catchment and, consequently, <sup>10</sup>Be deposition using a new approach based on regression analyses between our <sup>10</sup>Be record and environmental proxy time-series from the same archive. Our analyses suggest that environmental influences contribute to up to 37% of the variability in our <sup>10</sup>Be record, but cannot be the main explanation for major <sup>10</sup>Be excursions. Corrected for these environmental influences, our <sup>10</sup>Be record is interpreted to dominantly reflect changes in solar modulated cosmogenic radionuclide production. The preservation of a solar production signal in <sup>10</sup>Be from varved lake sediments highlights the largely unexplored potential of these archives for solar activity reconstruction, as global synchronization tool and, thus, for more robust paleoclimate studies.</p>},
  author       = {Czymzik, Markus and Adolphi, Florian and Muscheler, Raimund and Mekhaldi, Florian and Martin-Puertas, Celia and Aldahan, Ala and Possnert, Göran and Brauer, Achim},
  issn         = {0277-3791},
  keyword      = {Be,Solar activity,Time-scales,Varved lake sediments},
  language     = {eng},
  month        = {12},
  pages        = {31--39},
  publisher    = {Elsevier},
  series       = {Quaternary Science Reviews},
  title        = {A varved lake sediment record of the <sup>10</sup>Be solar activity proxy for the Lateglacial-Holocene transition},
  url          = {http://dx.doi.org/10.1016/j.quascirev.2016.10.007},
  volume       = {153},
  year         = {2016},
}