This two-page flyer is a short history of gold and its deposition, and an introductory guide to prospecting. Based on recent field work, existing information and advances in the understanding of alunite formation of these occurrences have been characterized and assessed. These acid-sulfate occurrences were investigated and assessed for their relative gold potential. Work included mapping, geochemistry, petrography and literature review. This study determined that illite mineralogy was the only consistent aspect of argillically altered rock samples from the Carrie Steele and Lulu Graben fault zones.
Results provide further evidence for a Mesozoic age of the gold mineralization.
All the mines and mineral processing plants currently producing or able to produce, with a listing of operators and exact locations are depicted on a base map of the state. This alteration has been accompanied by formation of an unusually type of illite, termed pseudo-illite, which is anomalously low in K20 and Na20, and is probably enriched in bound water. Whether this hydrothermal system was responsible for the ore-grade gold mineralization at Mercur, Sunshine, and West Dip is still not certain. This report contains information on 730 inactive mines and prospects producing or containing gold. Locations, production and reserve data are given for the 6 actives mines.