1 Historical eruptions of Lautaro Volcano and their impacts on lacustrine 2 ecosystems in southern Argentina 3 4 Christoph Mayr, Rebecca E. Smith, M. Luján García, Julieta Massaferro, Andreas Lücke, Nathalie 5 Dubois, Nora I. Maidana, Wolfgang J.-H. Meier, Holger Wissel, Bernd Zolitschka 6 7 8 C. Mayr, W. J.-H. Meier 9 Institut für Geographie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Wetterkreuz 15, 91058 Erlangen, 10 Germany 11 e-mail:
[email protected] 12 13 C. Mayr 14 Department für Geo- & Umweltwissenschaften and GeoBio-Center, Ludwig-Maximilians-Universität München, 15 Richard-Wagner-Str. 10, 80333 München, Germany 16 17 R. E. Smith 18 Research Laboratory for Archaeology and the History of Art, 1 South Parks Road, University of Oxford, OX1 19 3TG, UK 20 21 M. L. García, N. I. Maidana 22 UBA, DBBE; CONICET-UBA, IBBEA, Laboratorio de Diatomeas Continentales, Buenos Aires, Argentina 23 24 J. Massaferro 25 CONICET, CENAC/APN, Bariloche, 8400, Argentina 26 27 A. Lücke, H. Wissel 28 Forschungszentrum Jülich GmbH, Institut für Bio- und Geowissenschaften, IBG-3: Agrosphäre, 52425 Jülich, 29 Germany 30 31 N. Dubois 32 Department of Surface Waters - Research and Management, EAWAG, Überlandstrasse 133, 8600 Dübendorf, 33 Switzerland, 34 35 B. Zolitschka 36 Universität Bremen, Institut für Geographie, GEOPOLAR, Celsiusstr. 2, 28359 Bremen, Germany 37 38 1 39 Key words: Patagonia, Northern Austral Volcanic Zone, 210Pb dating, Diatoms, Geochemistry, Stable 40 isotopes, Tephra 2 41 Abstract 42 43 Lacustrine sediment sequences were obtained from Lagunas Verde and Gemelas Este, two small lakes 44 located east of the southern Patagonian Ice Field and close to the village of El Chaltén, in Argentinian 45 Patagonia.