Article
The Jurema Mafic-Ultramafic Complex: discovery of a Fe-Ti ± V ± Co mineralized body at Betânia, State of Pernambuco, Brazil, Transversal Zone, Borborema Province
Registro en:
LIMA, Felipe J. da C. et al. The Jurema Mafic-Ultramafic Complex: discovery of a Fe-Ti ± V ± Co mineralized body at Betânia, State of Pernambuco, Brazil, Transversal Zone, Borborema Province. Thechnical Report, Brasília, n. 6, Jun. 2016.
2448-2242
Autor
LIMA, Felipe J. da C.
LAGES, Geysson de A.
OLIVEIRA, Roberto G. de
MORAIS, Débora M. F. de
BRASILINO, Roberta G.
VIRGENS NETO, Joaquim das
RODRIGUES, Marília de A. C.
HORN, Bruno L. D.
OLIVEIRA, Saulo F. de
Institución
Resumen
The Transversal Zone of the Borborema Province (BP) stands out for the occurrence of mineralized
mafic-ultramafic complexes and the so called Floresta Titaniferous District. This short paper deals with the
discovery of a mafic-ultramafic complex, the Jurema Complex (CMUJ), and presents preliminary geological,
geophysical and geochemical results. The discovery, located in Betânia, State of Pernambuco, is a consequence
of integration of several remote sensor data conducted in the westernmost portion of the Alto Moxotó
Terrane of the BP. The Jurema Mafic-Ultramafic Complex crops out as a 2.5 x 0.6 km ellipsoidal, zoned/stratiform
mafic-ultramafic intrusion with possible concealed lateral extension of at least 6 km to ESE, according
to geophysical modelling. From core to rim, the intrusion shows igneous zoning of metaperidotite, cumulatic
metapyroxenite, garnet-metagabbro and metahornblendite. Massive Fe-Ti oxide occurrences were found dispersed
all over the complex. Fe-Ti oxide mineralization is composed of polygonal massive clusters of martitized
magnetite and ilmenite occurring in similar modal proportions. First analyses performed using portable
X-ray fluorescence yielded Fe (52.89-52.02%), Ti (10.65-9.80%), V (0.36-0.33%) and Co (0.38-0.29%) contents.
The discovery and the preliminary characterization of the CMUJ expand the prospective area of the Floresta
Titaniferous District into a kilometric-scale linear belt.