Articles | Volume 11, issue 6
Research article
11 Dec 2020
Research article |  | 11 Dec 2020

Comparative geochemical study on Furongian–earliest Ordovician (Toledanian) and Ordovician (Sardic) felsic magmatic events in south-western Europe: underplating of hot mafic magmas linked to the opening of the Rheic Ocean

J. Javier Álvaro, Teresa Sánchez-García, Claudia Puddu, Josep Maria Casas, Alejandro Díez-Montes, Montserrat Liesa, and Giacomo Oggiano

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Cited articles

Álvaro, J. J. and Vizcaïno, D.: The Furongian break-up (rift-drift) transition in the Anti-Atlas, Morocco, J. Iberian Geol., 44, 567–587,, 2018. 
Álvaro, J. J., Ferretti, F., González-Gómez, C., Serpagli, E., Tortello, M. F., Vecoli, M., and Vizcaïno, D.: A review of the Late Cambrian (Furongian) palaeogeography in the western Mediterranean region, NW Gondwana, Earth-Sci. Rev., 85, 47–81,, 2007. 
Álvaro, J. J., Ezzouhairi, H., Ribeiro, M. L., Ramos, J. F., and Solá, A. R.: Early Ordovician volcanism of the Iberian Chains (NE Spain) and its influence on preservation of shell concentrations, Bull. Soc. géol. Fr., 179, 569–581,, 2008. 
Álvaro, J. J., Bellido, F., Gasquet, D., Pereira, F., Quesada, C., and Sánchez-García, T.: Diachronism of late Neoproterozoic-Cambrian arc-rift transition of North Gondwana: a comparison of Morocco and the Iberian Ossa-Morena Zone, J. Afr. Earth Sci., 98, 113–132,, 2014a. 
Álvaro, J. J., Bauluz, B., Clausen, S., Devaere, L., Gil Imaz, A., Monceret, E., and Vizcaïno, D.: Stratigraphy of the Cambrian-Lower Ordovician volcanosedimentary complexes, northern Montagne Noire, France, Stratigraphy, 11, 83–96, (last access: 30 November 2020), 2014b. 
Short summary
A geochemical comparison of early Palaeozoic felsic magmatic episodes throughout the south-western European margin of Gondwana is analysed and includes data from the Iberian Massif, the Eastern Pyrenees, southern France and Sardinia. This dataset favours partial melting of sediments and/or granitoids in the lower continental crust during extensional movements related to the opening of the Rheic Ocean.