The largest known layered complex has been studied for nearly 100 years, but the problems concerning its regional setting, the genesis of certain of the constituent rock types, their age relationships, level of emplacement, the origin of their layered nature, and the morphology of the complex are still unresolved. Problems also exist in regard to the mineralization, particularly with respect to that associated with the acid phase of the complex and to allegedly hydrothermal deposits in the enclosing sedimentary rocks. The opposing views on these problems are reviewed and an attempt is made to reconcile them.

First Page Preview

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