Volcano- and climate-driven changes in atmospheric dust sources and fluxes since the Late Glacial in Central Europe

Abstract

Research Article| April 01, 2012 Volcano- and climate-driven changes in atmospheric dust sources and fluxes since the Late Glacial in Central Europe Gaël Le Roux; Gaël Le Roux 1AGEs, Department of Geology, Liège University B18, Sart-Tilman, Allée du 6 Août, B-4000 Liège, Belgium2EcoLab, UMR5245 CNRS–Université de Toulouse, campus ENSAT avenue de l’Agrobiopôle, 31326 Castanet-Tolosan, France Search for other works by this author on: GSW Google Scholar Nathalie Fagel; Nathalie Fagel 1AGEs, Department of Geology, Liège University B18, Sart-Tilman, Allée du 6 Août, B-4000 Liège, Belgium Search for other works by this author on: GSW Google Scholar Francois De Vleeschouwer; Francois De Vleeschouwer 1AGEs, Department of Geology, Liège University B18, Sart-Tilman, Allée du 6 Août, B-4000 Liège, Belgium2EcoLab, UMR5245 CNRS–Université de Toulouse, campus ENSAT avenue de l’Agrobiopôle, 31326 Castanet-Tolosan, France Search for other works by this author on: GSW Google Scholar Michael Krachler; Michael Krachler * 3Institute of Earth Sciences, University of Heidelberg, Im Neuenheimer Feld 236, D-69120 Heidelberg, Germany *Current address: Institute for Transuranium Elements of the European Commission’s Joint Research Centre (JRC), Postfach 2340, D-76125 Karlsruhe, Germany. Search for other works by this author on: GSW Google Scholar Vinciane Debaille; Vinciane Debaille 4Laboratoire G-Time, Université Libre Bruxelles, CP160/02, Avenue F.D. Roosevelt 50, 1050 Bruxelles, Belgium Search for other works by this author on: GSW Google Scholar Peter Stille; Peter Stille 5LhyGeS-UMR7517, EOST, Université de Strasbourg, INSU/CNRS, 1 rue Blessig, F-67084 Strasbourg, France Search for other works by this author on: GSW Google Scholar Nadine Mattielli; Nadine Mattielli 4Laboratoire G-Time, Université Libre Bruxelles, CP160/02, Avenue F.D. Roosevelt 50, 1050 Bruxelles, Belgium Search for other works by this author on: GSW Google Scholar W.O. van der Knaap; W.O. van der Knaap 6University of Bern, Institute of Plant Sciences and Oeschger Centre for Climate Change Research, Altenbergrain 21, CH-3013 Bern, Switzerland Search for other works by this author on: GSW Google Scholar Jacqueline F.N. van Leeuwen; Jacqueline F.N. van Leeuwen 6University of Bern, Institute of Plant Sciences and Oeschger Centre for Climate Change Research, Altenbergrain 21, CH-3013 Bern, Switzerland Search for other works by this author on: GSW Google Scholar William Shotyk William Shotyk † 3Institute of Earth Sciences, University of Heidelberg, Im Neuenheimer Feld 236, D-69120 Heidelberg, Germany †Current address: Department of Renewable Resources, University of Alberta, Edmonton, Alberta T6G 2H1, Canada. Search for other works by this author on: GSW Google Scholar Geology (2012) 40 (4): 335–338. https://doi.org/10.1130/G32586.1 Article history received: 24 Jun 2011 rev-recd: 08 Nov 2011 accepted: 15 Nov 2011 first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Gaël Le Roux, Nathalie Fagel, Francois De Vleeschouwer, Michael Krachler, Vinciane Debaille, Peter Stille, Nadine Mattielli, W.O. van der Knaap, Jacqueline F.N. van Leeuwen, William Shotyk; Volcano- and climate-driven changes in atmospheric dust sources and fluxes since the Late Glacial in Central Europe. Geology 2012;; 40 (4): 335–338. doi: https://doi.org/10.1130/G32586.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Atmospheric dusts are an important part of the global climate system, and play an important role in the marine and terrestrial biogeochemical cycles of major and trace nutrient elements. A peat bog record of atmospheric deposition shows considerable variation in dust deposition during the past 15 k.y., with abrupt changes in fluxes at 12, 9.2, 8.4, 7.2, and 6 cal. kyr B.P. Using Nd isotopes and rare earth elements, it is possible to clearly distinguish between volcanic inputs and those driven by climate change, such as the long-term aridification of the Sahara and regional erosion due to forest clearing and soil cultivation activities. Our results indicate that a major dust event in North Africa and Europe preceded the 8.2 kyr B.P. cold event by 200 yr. This dust event may have played an active role in the following climate cooling of the 8.2 kyr B.P. event. Nd isotope evidence also indicates a relatively slow change in dust regime over Europe from 7 to 5 kyr B.P. due to Sahara expansion. These findings show that the inorganic fraction in high-resolution peat records can provide remarkably sensitive indicators of dust load and sources. Our study supports the priority to better identify the impact of dust loading during the Holocene in terms of direct and indirect impacts on environmental and climate changes. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.