@article{article253ad4c3,
title   = {U–Pb zircon ages of orthogneisses and supracrustal rocks of the Cariris Velhos belt: onset of Neoproterozoic rifting in the Borborema Province, NE Brazil},
author = {Guimaraes, Ignez de Pinho and Van Schmus, W R and Brito Neves, Benjamim Bley de and Bittar, Sheila Maria Bretas and Silva Filho, Adejardo Francisco da and Armstrong, Richard},
year = {2012},
doi = {10.1016/j.precamres.2011.10.008},
journal   = {Precambrian Research}
}