Glacial and glacially conditioned lake types in the Cordillera Blanca, Peru : A spatiotemporal conceptual approach

Auteur(s) et Affiliation(s)



Description :
Based on empirical data from field research in over 20 valleys and the analysis of air and satellite images, the study provides a genetic classification of major lake types and a generalized model for the distribution of the present lakes and paleolakes. The origin of the lakes and their recurrent distribution pattern are associated with the individual stages of the Pleistocene to modern glaciation and their corresponding geomorphological landforms. Apart from the individual lake, the focus is put on the spatial arrangement of the lakes to each other based on a holistic landscape assessment. Implications are drawn for the hazard potential, in particular in terms of outburst cascades involving two or more lakes. Only some mountain regions are prone to form moraine-dammed lakes such as in the Cordillera Blanca. The key controlling factors for their formation are highlighted from a glacial-geomorphological point of view.


Type de document :
Article de périodique

Source :
Progress in physical geography, issn : 0309-1333, 2014, vol. 38, n°. 5, p. 602-636, nombre de pages : 35, Références bibliographiques : 4 p.

Date :
2014

Editeur :
Pays édition : Royaume-Uni, London, Sage Publications