Reconstrucción paleoambiental de los últimos 35000 años en el Noroeste de la Península Ibéricala Laguna de Villaseca (León)

  1. G. Jalut 1
  2. J.M. Belet 1
  3. A. García de Celis 2
  4. J.M. Redondo Vega 3
  5. L. Bonnet 1
  6. B. Valero Garcés 4
  7. A. Moreno 4
  8. L. Villar Pérez 4
  9. M. Fontugne 5
  10. J.J. Dedoubat 1
  11. P. González Sampériz 4
  12. L. Santos Fidalgo 6
  13. J.R. Vidal Romanì 6
  1. 1 Laboratoire Dynamique de la Biodiversité, UMR 5172 UPS/CNRS, Toulouse, France
  2. 2 Universidad de Valladolid
    info

    Universidad de Valladolid

    Valladolid, España

    ROR https://ror.org/01fvbaw18

  3. 3 Universidad de León
    info

    Universidad de León

    León, España

    ROR https://ror.org/02tzt0b78

  4. 4 Instituto Pirenaico de Ecologia-CSIC
  5. 5 Laboratoire des Sciences du Climat et de l’Environnement (CNRS/CEA)
  6. 6 Departamento de Xeologia, Facultade de Ciencias, Campus de Zapatera, A Coruña
Journal:
Geotemas (Madrid)

ISSN: 1576-5172

Year of publication: 2004

Issue Title: VI CONGRESO GEOLÓGICO DE ESPAÑA, ZARAGOZA, 12-15 JULIO, 2004

Issue: 6

Pages: 105-108

Type: Article

More publications in: Geotemas (Madrid)

Abstract

The déglaciation history o f the Bradas de Robles, Lumajo and Sosas valleys (Sil River headwaters,León province, N W Spain) was reconstructed on the basis of detailed geomorphological studies ofglacier deposits and sedimentological and palynological analyses of the Villaseca Lake sedimentsequence. The basal 14C date o f the glacial lake deposit sequence indicates that, the maximumextent of the glaciers during the last glaciation was before 35,000 years B.P. and predated the maximum advances o f the Scandinavian Ice Sheet and some Alpine glaciers. The early déglaciation alsooccurred in the Cantabrian mountains and in the Pyrenees and it suggests different regionalresponses to climatic forcing in southern Europe. Sedimentological and palinological proxies fromthe Villaseca record show a high-frequency ciclicity during the Lateglacial that could correlate withthe known millenial-scale variability described in the north Atlantic marine records.