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(Article of periodic en Anglais - 2014)

Document title

Conceptual hydrogeological model and aquifer system classification of a small volcanic island (La Gomera; Canary Islands)

Authors(s) and Affiliation(s)

IZQUIERDO T. (1 2) ;
(1) Centro de Vulcanologia e Avaliação de Riscos Geológicos, Univ. dos Açores, Ponta Delgada, PORTUGAL
(2) Grupo de Paleontología y Ecología Aplicada, Univ., Huelva, ESPAGNE

Abstract

This study takes advantage of the large number of outcrops exposing the inner structure of La Gomera (Canary Islands), due to its inactivity during the last 2.5 Ma, to develop a conceptual groundwater model. Based on a volcanostratigraphic model, 5 hydrostratigraphic units have been defined that include 2 main aquifers and volcaniclastic deposits located between them that control the vertical movement of the groundwater. The island has been classified into 4 aquifer systems or water management units based on their hydrogeological features that permit a sustainable and independent management of the resources of one aquifer system in relationship with the other ones. The AA. have identified 4 general groundwater flow paths : 1) groundwater in the Upper aquifer discharging to the sea; 2) groundwater in the Upper aquifer springing out along the main ravines; 3) groundwater in the Basal aquifer impounded by dikes and; 4) groundwater in the Basal aquifer discharging to the sea

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2014, vol. 114 [pp. 119-128]

Bibliographic references : 1 p.

Collation : 6 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2013.11.006

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
Refdoc record number (ud4) : 28337773 : Permanent link - XML version
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