U-PB detrital zircon provenance of metasedimentary rocks from the Ceará central and médio Coreaú domains, Borborema province, NE-Brazil: evidence for a long-lived neoproterozoic active continental margin - Ganade, Carlos E.; Cordani, Umberto G.; Basei, Miguel Angelo Stipp; Castro, Neivaldo; Sato, Kei; Sproesser, Walter Maurício (International Gondwana Symposium, 2011)