Los Basaltos Horizontales de Agulo (La Gomera)

The "Horizontal Basalts" in the Agulo area are made up of a more than 600m thick succession of basaltic flows that filled a SW-NE trending paleo-valley. Compositions vary between picrite and trachybasalt. The lithologic and geochemical variability of these rocks indicates that they...

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Detalhes bibliográficos
Autores: Herrera, Raquel, Ancochea, Eumenio, Huertas, María José
Tipo de documento: artigo
Data de publicação:2002
País:España
Recursos:Universidad de Huelva (UHU)
Repositório:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:espanhol
OAI Identifier:oai:ariasmontano.uhu.es:10272/9351
Acesso em linha:http://hdl.handle.net/10272/9351
Access Level:Acceso aberto
Palavra-chave:Horizontal Basalts
Fractional crystallization
La Gomera
Canary Islands
Descrição
Resumo:The "Horizontal Basalts" in the Agulo area are made up of a more than 600m thick succession of basaltic flows that filled a SW-NE trending paleo-valley. Compositions vary between picrite and trachybasalt. The lithologic and geochemical variability of these rocks indicates that they were generated mainly by fractional crystallization. The recognition of several evolution cycles suggests the involvement of other processes that modify the general fractional crystallization trend