Erosion of cinder cones in Tenerife by gully formation, Canary Islands, Spain

Auteur(s) et Affiliation(s)

DÓNIZ, J.

Iriarte College in Tourism, Univ. of La Laguna, Tenerife, Puerto de la Cruz, Espagne

ROMERO, C.

Dep. of Geography, Univ. of La Laguna, Tenerife, Puerto de la Cruz, Espagne

CARMONA, J.

Dep. of Volcanology, Museo Nacional Ciencias Naturales, Madrid, Espagne

GARCÍA, A.

Dep. of Volcanology, Museo Nacional Ciencias Naturales, Madrid, Espagne

Description :
Cinder cones were produced by the main basaltic eruptive episodes during the last 1 Ma in Tenerife. The aim of this paper is to document the evolution of gully erosion on 43 dated cinder cones over time and determine whether age is a critical factor in the degradation level of volcanoes, independent of other factors. The methodology employed is based on geomorphological and morphometric analyses. Only 39.5% of the Tenerife volcanoes have gullies; nevertheless, more than 84.6% of the Pleistocene cones present gullies, compared to only 20% of the Holocene volcanoes. Therefore, the older volcanoes appear to have been more affected by torrential rains. Although the age of a volcano is an essential factor in the degree of erosion, other factors intervene as well.

Type de document :
Article de périodique

Source :
Physical geography, issn : 0272-3646, 2011, vol. 32, n°. 2, p. 139-160, nombre de pages : 22, Références bibliographiques : 5 p.

Date :
2011

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis

Langue :
Anglais