ESTUDOS GEOLOGICOS DA AREA DE TROIA, MUNICIPIO DE PEDRA BRANCA, CEARA, BRASIL. 2. PETROGRAFIA E PETROLOGIA = ETUDES GEOLOGIQUES DE LA REGION DE TROIA, MUNICIPALITE DE PEDRA BRANCA, CEARA, BRESIL. II. PETROGRAPHIE ETDE ANDRADE RMG.1971; IN: I. CONGR. HISP. LUSO-AMER. GEOL. ECON.; MADRID-LISBOA; 1971; MADRID IBERICA RESUME ; 1971, VOL. 2,1, P. 711Miscellaneous

GEOLOGY AND TECTONICS OF CHROMITE MINERALIZATION AROUND TROIA, CEARA.BHASKARA RAO A; BORGES MR; ANDRADE GF DE et al.1970; IMA-IAGOD. MEET. 1970, COLLECT. ABSTR.; 1970, P. 53Miscellaneous