Mössbauer study of Fe mineralogy with respect to rank, type and Colombian carboniferous zone

摘要: The transmission mode of Fe-57 Mossbauer spectroscopy was used to identify iron bearing minerals and establish relationships between among these the ranks types various carboniferous zones in Colombia. Maceral mineral compositions vary significantly Colombian zones. These variations determine some final characteristics potential uses coal, therefore contribute defining coal quality. A comparison results shows that thermal maturity coals ranges from lignite semianthracite. Similarities differences exist with respect conventional parameters. Cordoba Cauca have higher sulfur contents > 2 % ash contents. Iron identified included pyrite, which was, found everywhere, illite, ankerite, siderite, sulfates were particular areas. Coals Valle del Cauca, Cordoba, Caldas Santander are characterized by oxidation pyrite its transformation into ferrous or ferric sulfate.