Fahlbands--concordant layers or lenses of sulfidic impregnation in a metamorphic sequence--are interpreted as the high-grade metamorphic equivalents of sapropelic sulfide muds. In the Kongsberg silver and Modum cobalt districts of southern Norway, the fahlbands were present prior to introduction of the silver and cobalt mineralizations.

First Page Preview

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