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Helena And Ennis Talc Deposits, Howard N. Anderson
Helena And Ennis Talc Deposits, Howard N. Anderson
Bachelors Theses and Reports, 1928 - 1970
The purpose of this report is to collect geologic data concerning two Montana talc occurrences at Helena and Ennis and to offer some explanation as to their origin. The two deposits cited are in somewhat similar lithologic settings and both possess the same mineralogical and structural features. Because of this similarity only the Helena deposit is covered in detail.