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Iron oxides of Fazendão Deposit, East Border of Quadrilátero Ferrífero, Minas Gerais, Brazil
This article has been downloaded from IOPscience. Please scroll down to see the full text article. 2010 J. Phys.: Conf. Ser. 217 012059 (http://iopscience.iop.org/1742-6596/217/1/012059) View the table of contents for this issue, or go to the journal homepage for more
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International Conference on the Applications of the Mössbauer Effect (ICAME 2009) IOP Publishing Journal of Physics: Conference Series 217 (2010) 012059 doi:10.1088/1742-6596/217/1/012059
Iron Oxides of Fazendão Deposit, East Border of Quadrilátero Ferrífero, Minas Gerais, Brazil
A R P Pereira1,2, F J Rios2, C A Rosière3, J D Fabris1
1
Departamento de Química – Universidade Federal de Minas Gerais, Brasil Centro de Desenvolvimento da Tecnologia Nuclear – CDTN, Minas Gerais, Brasil 3 Instituto de Geociências – Universidade Federal de Minas Gerais, Brasil
2
E-mail: arpp@qui.dout.ufmg.br
Abstract. The iron oxides highly influence the soil structure and aggregation of mineral particles in soil. They also play an important role in some economical variables, as those related to the use of land for agriculture practices or mineral exploitation, in ore mining activities. About 60 % of all industrial activities on iron processing in Brazil is based on ores mined in the geodomain of Quadrilátero Ferrífero, state of Minas Gerais, Brazil. Samples of a mining area for iron, the Fazendão Deposit in the east border of Quadrilátero Ferrífero have been studied in an attempt to contribute to a better understanding of the key chemical and mineralogical pathways related to the formation and transformation of iron oxides, involving hematite. From powder diffraction patterns, it is