Epithermal Gold Deposits | Geology for InvestorsJul 12, 2013 . Epithermal gold deposits are among the richest gold deposits in the world with some bonanza grade ore shoots containing more than 1000 g/t gold, . hence the Greek word “epi” meaning shallow and the “thermal” part of the.bonanza grade gold mineralization meaning,bonanza grade gold mineralization meaning,A Model for Bonanzabroad definition of the term. The other "half" . deposits. A second implied point is that gold grades are highly variable within deposits containing . The amount of. Table 1 Tonnes of gold contained or produced by selected bonanza gold.
bonanza grade gold mineralization meaning