Biblioteca de la Universidad Complutense de Madrid

Geometría del enjambre de diques cónicos de Vallehermoso La Gomera (Islas Canarias)

Impacto



Hernán, F. y Cubas, C.R. y Huertas Coronel, María José y Brandle, J.L. y Ancochea Soto, Eumenio (2000) Geometría del enjambre de diques cónicos de Vallehermoso La Gomera (Islas Canarias). Geogaceta (27). pp. 87-90. ISSN 0213-683X

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Resumen

A mainly phonolitic, 10 km in diameter, cone-sheet complex crops out on the northern area of La Gomera.
The swarm intrudes into the Basal Complex, The Old BasaIts and other rocks of the Trachytic-phonolitic
Complex to which they belong. The cone-sheet complex center lies south of Vallehermoso. Most of the
dykes in the care of the structure are "conic dome-sheets" which start to be evidenced 400m far from
the center and dip over 50°. In the surrounding area the dome-sheets are less frequent while simple canesheets
are more abundant and dip more gently towards the periphery. From the analysis of their dips and
distribution a single conic structure is deduced. The cane-sheets were originally connected to a hypothetical
dome-shaped magmatic body whose uppermost part is at present located 7350m under sea level.


Tipo de documento:Artículo
Palabras clave:Felsic dykes, Cone sheet complex, La Gomera, Canary Islands
Materias:Ciencias > Geología > Petrología
Código ID:9924
Depositado:04 Feb 2010 11:59
Última Modificación:01 Mar 2010 11:54

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