Abstract
Comparativo study of six granitoid complexes associated with transcurrent faults in the State of São Paulo, Brazil, concerning their architecture and magmatic cycles is presented. Three of these complexes are calc-alkaline (Itaqui, São Roque, Cantareira) and the other three are rapakivi ones (São Francisco, Sorocaba, Itu). The architecture of the complexes is the result of the coalition of severa! magmatic phases with the following temporal emplacement sequence: 1. Early Phase; 2. Main Phase; 3. Early Lateral Accretionary Phase; 4. Phase of Stocks and Circular Intrusions; 5. Final Lateral Accretionary Phase. Also the magmatic units whiçh built up the complexes belong to at least two magmatic cycles with or without an intra-cycle mafic dike phase. The recurrence of the architecture style and the presence of successive magmatic cycles in ali complexes independently of their serial character is discussed in terms of magma emplacement mechanisms, the presence of collecting magma chambers successively tapped and recharged and the reactivation-phases of the transcurrent faults to which the complexes are associated.
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