Mantle Plumes : volcanic hystory, geological features and volcanic hazards: The Canary Islands, Spain = Plumas mantélicas : historia volcánica, características geológicas y riesgos volcánicos: Las Islas Canarias, EspañaReportar como inadecuado




Mantle Plumes : volcanic hystory, geological features and volcanic hazards: The Canary Islands, Spain = Plumas mantélicas : historia volcánica, características geológicas y riesgos volcánicos: Las Islas Canarias, España - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Colaborador: Perez-Torrado, Francisco-Jose

Materias : Islas volcánicas oceánicasVulcanismoPrevisiónHistoriaCanarias

Fecha de publicación : 2001

Fecha de depósito: 8-oct-2009

Tipo de documento: Congresos y conferencias

En : III Congreso Ibérico de Geoquímica-VIII Congreso de Geoquímica de España . M. Lago y E. Arranz (ed. cient.), pp. 207-217





Autor: Carracedo, J.C.

Fuente: https://acceda.ulpgc.es


Introducción



MANTLE PLUMES: VOLCANIC HISTORY, GEOLOGICAL IiEATURES AND VOLCANIC HAZARDS: THE CANARY ISLANDS, SPAIN PLUMAS MANTELICAS: HISTORIA VOLCANICA, CARACTER~STICASGEOLOGICAS Y RIESGOS ~OLCANICOS:LAS ISLAS CANARWS, ESPANA Carracedo, J.C.
and P and rezIbrrado, F.J. Estacibn Volci~noldgicade Cdnarias.
IPNA- CSIC, P.O.
Box 195.
38206 La Lapuna.
Tenerife.
Canary Islands.
Spain. Dplo, de Fisica-Gcologia.
Fac.
Cicncias del Mal; Univ.
Las Palmas de Gran Canaria.
Canary Islsnds. E-mail: jcamacedo~iplla.csic.es Abstract Numerous seamounts and submarine volcanoes and three chains of volcanic oceanic islands -including he Canarian Archipelago- cluster in rhc East Allantic region.
The Ciinaries.
located close 10rhe African covst and the tectonic Atlas sysrem, have li~ra long time been considered 10 be different in their genesis and evolution from intraplate.
plume-generated volcanic oceanic islands.
This methodological ;ipproach produced significant uncertainties in the understanding of important geological features -stmtigraphic units, geochemical variation trends, strt~ctulalfecltures.
etc.- currently observed and explained in volcanic oceanic islands.
However.
mantle p l u m activity explains as well most of the main geological features of the Canaries. Clear similarities with intraplate volcanic oceanic islands such as the Hawaiian archipelago help in understanding the volcanic history and stritigraphy, the chemical composition and evolution of magmas and the generation of important geomorphological and suuctural features such as rift Imnes and caldera-type gravitational collapses.
The relationship with a mantle plumc explains the type of the predominant eruptive mechanisms and the concentration of active voleanism and volcanic hazards in the western edge ofthe archipelago.
in accordance with the progression of the plume. Key words: Volcanic oceanic islands, genetic models, structural features.
recent volcanisln, eruptive hazards. Resumen Nurnemsos volcanes submarines y tres nrc...






Documentos relacionados