Abstract

Great confusion exists in the interpretation of field evidence concerning the origin of masses of hard hematite in itabirite. The evidence is briefly reviewed, and some additional observations are recorded. The conclusion reached is that deposits of hard ore in itabirite commonly result from normal weathering processes. Supergene deposits of hard ore are more numerous and more widespread than are deposits of metamorphic or of other modes of origin.

First Page Preview

First page PDF preview
You do not currently have access to this article.