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Early Cambrian granitoids of North Gondwana margin in the transition from a con...
Sanchez-Garcia, T; Pereira, M Francisco; Bellido, F; Chichorro, M; Silva, JB; Valverde-Vaquero, P; Pin, Ch; Sola, ARTwo distinct Cambrian magmatic pulses are recognized in the Ossa-Morena Zone (SW Iberia): an early rift-(ER) and a main rift-related event. This Cambrian magmatism is related to intra-continental rifting of North Gondwana that is thought to have culminated in the opening of the Rheic Ocean in Lower Ordovician times. New data of whole-rock geochemistry (19 samples), Sm– Nd–Sr isotopes (4 samples) and ID–TIMS U–P...
Early Cambrian granitoids of North Gondwana margin in the transition from a con...
Sánchez-García, Teresa; Pereira, M. Francisco; Bellido, F.; Chichorro, Martím A.; Silva, J. Brandão; Valverde-Vaquero, P.; Pin, Ch.; Solá, Ana RitaTwo distinct Cambrian magmatic pulses are recognized in the Ossa-Morena Zone (SW Iberia): an early rift-(ER) and a main rift-related event. This Cambrian magmatism is related to intra-continental rifting of North Gondwana that is thought to have culminated in the opening of the Rheic Ocean in Lower Ordovician times. New data of whole-rock geochemistry (19 samples), Sm–Nd–Sr isotopes (4 samples) and ID–TIMS U...
Cambrian ensialic rift-related magmatism in the Ossa-Morena Zone
Chichorro, Martim; Pereira, M. Francisco; Diaz-Azpiroz, M.; Williams, Ian S.; Fernandez, C.; Pin, Ch.; Silva, Jose B.The Late Ediacaran (c. 560–550 Ma) Série Negra sediments of the Évora–Aracena metamorphic belt, Ossa-Morena Zone, SW Iberian Massif, preserve a record of the erosion of an Avalonian–Cadomian magmatic arc and subsequent related turbiditic sedimentation. Detrital zircon from the Série Negra is characterized by predominantly Ediacaran and Cryogenian ages, with few Paleoproterozoic and Archean cores, and a marked l...
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