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Rock glaciers in the Pyrenees

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  • E. Serrano
  • C. Agudo
  • E. Martinez De Pisón

Abstract

In the Pyrenees 13 active rock glaciers have been detected, five on the northern side and eight on the southern. The active rock glaciers are located in the deglaciated high mountain, on the most massive and highest massifs. The active rock glaciers are located in the central Pyrenees, between 0°15′W and 0°50′E, under summits always higher than 2950 metres. The orientations are north and north‐west, a fact that points to the residual character of these landforms. The lithologies of the substratum are diverse, mainly granites, schists and shales. There are nine tongue‐shaped rock glaciers, two lobate rock glaciers, and two complex rock glaciers. A morphogenetic classification allows one to differentiate between two dynamic types. There are six debris rock glaciers, which are linked to a debris‐covered glacier origin. There are seven talus rock glaciers with a cryogenic origin. Copyright © 1999 John Wiley & Sons, Ltd. Dans le Pyrénées, 13 glaciers rocheux actifs ont été reconnus, cinq sur le versant nord et huit sur le versant sud. Les glaciers rocheux actifs sont localisés dans la zone déglaciée de haute montagne, sur les massifs les plus larges et les plus élevés. Ils sont situés dans les Pyrénées centrales entre 0°15′ Ouest et 0°50′ Est, à des altitudes toujours supérieures à 2.950 m. Les orientations sont Nord et Nord‐Ouest, ce qui souligne le caractère résiduel de ces formes. Les lithologies à partir desquelles ces glaciers rocheux se sont formés, sont diverses mais sont principalement du granite, des schistes et des phyllades. Il y a 9 glaciers rocheux en forme de langue, deux glaciers rocheux lobés et deux glaciers rocheux complexes. Une classification morphogénétique permet de distinguer deux types de dynamique: six glaciers rocheux ont pour origine des glaciers couverts de débris tandis que sept autres ont une origine cryogénique. Copyright © 1999 John Wiley & Sons, Ltd.

Suggested Citation

  • E. Serrano & C. Agudo & E. Martinez De Pisón, 1999. "Rock glaciers in the Pyrenees," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 10(1), pages 101-106, January.
  • Handle: RePEc:wly:perpro:v:10:y:1999:i:1:p:101-106
    DOI: 10.1002/(SICI)1099-1530(199901/03)10:13.0.CO;2-U
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    1. José Juan de Sanjosé Blasco & Alan D. Atkinson & Manuel Sánchez-Fernández & Antonio Gómez-Ortiz & Montserrat Salvà-Catarineu & Ferran Salvador-Franch, 2022. "Geomatic Techniques Applied to the Dynamic Study (2001–2019) of the Rock Glacier in the Veleta Cirque (Sierra Nevada, Spain)," Land, MDPI, vol. 11(5), pages 1-20, April.

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