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Detailed seismic stratigraphy of Lago Puyehue: implications for the mode and timing of glacier retreat in the Chilean Lake District
Heirman, K.; De Batist, M.; Charlet, F.; Moernaut, J.; Chapron, E.; Brümmer, R.; Pino, M.; Urrutia, R. (2011). Detailed seismic stratigraphy of Lago Puyehue: implications for the mode and timing of glacier retreat in the Chilean Lake District. J. Quaternary Sci. 26(7): 665-674. dx.doi.org/10.1002/jqs.1491
In: Journal of Quaternary Science. John Wiley & Sons: Harlow, Essex. ISSN 0267-8179; e-ISSN 1099-1417
Peer reviewed article  

Available in  Authors 
    Vlaams Instituut voor de Zee: Open Marine Archive 279989 [ download pdf ]

Author keywords
    Lago Puyehue; Chilean Lake District; seismic stratigraphy; lake sediments; deglaciation

Authors  Top 
  • Heirman, K.
  • De Batist, M.
  • Charlet, F.
  • Moernaut, J.
  • Chapron, E.
  • Brümmer, R.
  • Pino, M.
  • Urrutia, R.

Abstract
    Lago Puyehue is a glacigenic lake in the Chilean Lake District (40°S) with a complex deglaciation history. A detailed seismic–stratigraphic study of its sedimentary infill indicates a much earlier retreat of the glacier from the Lago Puyehue basin than the neighbouring glacier from the Lago Rupanco basin. Because of their close proximity, Rupanco meltwater streams played an important part in the depositional processes of Lago Puyehue. A timing discrepancy between the in-lake ages of a sediment core and the outer-lake ages of moraine deposits (re)opens the discussion on the timing of deglaciation in the Southern Hemisphere.

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