 | Allan, Jaoqueline E. M., Coey, J. M. D., Sanders, I. S., Schwertmann, U., Friedrich, G., Wiechowski, A. (1989) An occurrence of a fully-oxidized natural titanomaghemite in basalt. Mineralogical Magazine, 53 (371) 299-304 doi:10.1180/minmag.1989.053.371.04 | Journal (article/letter/editorial) | | intrusion in an area of Precambrian gneiss in Minas Gerais, Brazil. It hosts exsolution lamellae of ilmenite...S: titanomaghemite, ferric iron, gneiss, Minas Gerais, Brazil. Introduction MAGHEMITES are cation-deficient...ALLAN E T AL. contain maghemite, are widespread in Brazil (Resende et al., 1988, Curi and Franzmeier, 1987)...composition from an area of Precambrian gneiss in Minas Gerais, Brazil. The rock is the parent for a soil with...hilly to mountainous region of the Zona da Mata, Minas Gerais, Brazil. The area is formed of Precambrian |  | | Report (issue) | | cooperation with the Departmento National da Produ^ao Mineral of Brazil under the auspices of the Agency for...Ferrifero, Minas Gerais, Brazil By NORMAN HERZ REGIONAL GEOLOGY OF THE QUADRILATERO FERRIFERO, MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL Prepared in cooperation with the Departmento Nacional da Produqao...Produqao Mineral of Brazil under the auspices of the Agency for International Development of the United...Ferrifero, Minas Gerais, Brazil. (Regional geology of the Quadrilatero Ferrifero, Minas Gerais, Brazil) (Geological |
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