%0 Journal Article
%A Sánchez Martínez, Sonia
%A Arenas Martín, Ricardo
%A Díaz García, Florentino
%A Martínez Catalán, José Ramón
%A Gómez Barreiro, Juan
%A Pearce, Julian A.
%T Careón ophiolite, NW Spain: Suprasubduction zone settingfor the youngest Rheic Ocean fl oor
%D 2007
%@ 0091-7613
%U https://hdl.handle.net/20.500.14352/51174
%X The Careón ophiolite (Galicia, NW Iberian Massif) shows lithological and geochemicalfeatures suggestive of an origin in a suprasubduction zone setting. As with other Devonianophiolites in the European Variscan belt, it was generated within a contracting Rheic Ocean.This setting and the general absence of large Silurian-Devonian volcanic arcs on both of theRheic Ocean margins strongly suggest that this ocean was closed by intraoceanic subductiondirected to the north. This subduction removed the older normal (N) mid-oceanic-ridge basalt(MORB) oceanic lithosphere and gave rise to a limited volume of new suprasubduction zoneoceanic lithosphere. The Careón ophiolite is a key element in understanding the evolution ofthe Rheic Ocean, which was the main oceanic domain that closed during the Paleozoic convergenceof Gondwana and Laurussia, preceding the assembly of Pangea
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