 | | Journal (article/letter/editorial) | | com/locate/lithos Geochemistry of the Rio Espinharas hybrid complex, northeastern Brazil T.F.C. Campos a,*, A.M.R...Federal University of Rio Grande do Norte, CP 1639 59072-97 Natal, RN, Brazil b Department of Earth Sciences...Sciences, Federal University of Rio Grande do Sul, 91501-970 Porto Alegre, RS Brazil Received 27 November 2001;...accepted 10 July 2002 Abstract The Rio Espinharas pluton, northeastern Brazil, belongs to the shoshonitic series...crystallization. In the Borborema province, northeastern Brazil, hybrid plutonic rocks have been studied, e.g. |  | | Report (volume) | | occasional isolated stacking faults in crystals, which do not show obvious signs of deformation in thin section...concluded that the two optical orientations of zoisite do not represent two polymorphs. To avoid confusion...(Weinschenk 1896; Game 1954). Its refractive indices do not differ from those of Cr3+-free zoisite of comparable...approximately 600°C/2 GPa (Fig. 26b). The fold shapes do not show great differences indicating a similar rheological...phase at elevated temperatures and pressures. To do this the integral µio( P ,T ) − µio( Pr ,T ) = P |
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