Society of Economic Geologists

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The Society of Economic Geologists (SEG) serves 6,500+ members worldwide who are committed to advancing the science and the discovery of mineral resources through research, publications, courses, and field trips.
Iron and manganese deposits of the Urucum District, Mato Grosso do Sul, Brazil
H. Urban
Economic Geology(1992),87(5):1375
http://dx.doi.org/10.2113/gsecongeo.87.5.1375

Society of Economic Geologists
Society of Economic Geologists
GeoScienceWorld
GeoScienceWorld