Titanium of volcanic origin in supergene zone

Abstract

In the light of titanium's tendency to form minerals which nearly always resist weathering, the vast scale of emergence of volcanogenic titanium in the supergene zone is abundantly clear. One may well suppose that titanium is not the only element to enter into the sedimentary process from volcanic emanations; for instance, a considerable part of the total germanium in sedimentary iron ores is due also to the presence of germanium in the composition of mobile volcanic emanations and its subsequent sorption by coagulating iron hydroxides. Hence there is reason to speculate that the list of known volcanogenic vaporous or gaseous components of sedimentary rock will one day be considerably expanded. — IGR Staff