Manganese Ores of Supergene Zone: Geochemistry of Formation
I.M. Varentsov
Pracejus, B., Bolton, B.R. and Frakes, L.A. (1986) Electrochemical process in Mn- ores from Groote Eylandt (N.T. Australia): ... Pracejus, B., Varga, R., Madgwick, J, Frakes., L.A. and Bolton, B.R. (1990b) Effect of mineral composition on ...