Actas de congresos
Metamorphism of chromitites in the Tapo ultramafic massif, eastern Cordillera, Peru
Fecha
2009Registro en:
Fanlo, I.; Gervilla, F.; Castroviejo, R.; Rodrigues, J.; Pereira, E.; Acosta, J. & Uribe, R. (2009) - Metamorphism of chromitites in the Tapo ultramafic massif, eastern Cordillera, Peru. En: Williams, P. J, ed. Smart Science for Exploration and Mining. Proceedings of the 10th Biennial SGA meeting of The society for Geology Applied to Mineral Deposits, Townsville, Australia, 17-20 August 2009. Townsville: Economic Geology Research, p. 161-163.
Smart Science for Exploration and Mining. Proceedings of the 10th Biennial SGA meeting of The society for Geology Applied to Mineral Deposits, Townsville, Australia, 17-20 August 2009
Autor
Fanlo González, Isabel
Gervilla, Fernando
Castroviejo Bolibar, Ricardo
Rodrigues, José Feliciano
Pereira, Eurico
Acosta Ale, Jorge Gilberto
Uribe, Ricardo
Institución
Resumen
Metamorphosed chromite crystals in massive chromitite ore-bodies from the Tapo ultramafic massif (Peru) show distinct petrographic features and chemical patterns of zoning different from those exhibited by disseminated chromites. The observed differences can be explained in terms of prograde metamorphism up to the lower-amphibolite facies, under the control of the chromite/silicate ratio, chromite grain size and degree of fracturing.