Discussions are given to the processes of albitization and iron activation during the formation of iron deposits, the transportation and hydrolysis of iron, che
As have been determined, the ratios of oxides and the contents of CaCO3 show a tendency to increase from bottom to top in Luochuan loess section, whereas an opp
Laihunite, a mineral of ferric and ferrous iron silicate discovered in China in recent years, occurs in high grade metamorphic BIF coexisting with magnetite, qu