Date of Award
Bachelor of Science in Geological Engineering
Dr. E. S. Perry
Professor P. A. Schafer
In many deposits of silver ores the grade of the ore decreases considerably a few hundred feet below the surface. It is believed that in many cases the better ores owe their richness in part to the process of sulphide enrichment. It is recognized, however, that many rich silver ores are hypogene deposits that have been affected very little, if any, by processes of enrichment.
Verling, Arthur C., "A Study and Application of the Process of Supergene Enrichment of Silver Ores." (1936). Bachelors Theses and Reports, 1928 - 1970. 65.
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