Herrera, R. and Ancochea Soto, Eumenio and Huertas Coronel, María José (2006) Las rocas volcánicas del Edificio Submarino de la isla de La Gomera: características composicionales. Geogaceta (39). pp. 43-46. ISSN 0213-683X
Official URL: http://www.sociedadgeologica.es/
The Submarine Edifice rocks are the oldest rocks in La Gomera. This edifice is made up of submarine lava and breccias, with marine sediments associated, all of which is transverse by a very dense network of diques. This essay shows the first geochemical and mineralogical submarine volcanic rocks data. These rocks are intensely altered and have an alkaline chemical affinity. Compositions vary between alkaline basalts and trachyandesites, and all of them show typical Within Plate and Ocean Island basalts immobile elements contents. The latter Subaerial Edifice volcanic rocks are similar in composition, although they are slightly less alkaline and they have less evolved types.
|Uncontrolled Keywords:||Seamounts, Submarine Edifice, Ocean Island Basalts, La Gomera, Canary Islands|
|Subjects:||Sciences > Geology > Petrology|
|Deposited On:||04 Feb 2010 10:59|
|Last Modified:||31 Aug 2010 13:11|
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