GRADE AND TONNAGE MODEL OF EPITHERMAL QUARTZ-ALUNITE Au

By Dan L. Mosier and W. David Menzie

COMMENTS The grade-tonnage model for this deposit type is built with data from districts. See figs. 120-123.

Figure 120. Tonnages of epithermal quartz-alunite vein deposits.

fig 120

Figure 121. Gold grades of epithermal quartz-alunite vein deposits.

fig 121

Figure 122. Silver grades of epithermal quartz-alunite vein deposits.

fig 122

Figure 123. Copper grades of epithermal quartz-alunite vein deposits.

fig 123

DEPOSITS

Name Country

Chinkuashih TIWN

El Indio CILE

Goldfield USNV

Iwato JAPN

Kasuga JAPN

Masonic USCA

Mohave USCA

Stedman USCA