1. Mineral Resources
  2. Online Spatial Data
  3. National Mineral Resource Assessment 1998

Mineral assessment tracts in Sierra county, California

[Additional scientific data in this geographic area]

GB01: Skarn Cu (18b) (Mesozoic - Tertiary) , covers 6 % of this area
90%50%10%5%1%
01122
GB07: Porphyry Cu (17) (Mesozoic - Tertiary) , covers 6 % of this area
90%50%10%5%1%
00012
GB14: Polymetallic replacement + skarn Zn-Pb (19a + 18c) (Mesozoic - Tertiary) , covers 6 % of this area
90%50%10%5%1%
03588
GB22: Epithermal vein, Comstock (25c) (Tertiary) , covers 6 % of this area
90%50%10%5%1%
01222
GB25: Epithermal vein, quartz-alunite (25e) (Tertiary) , covers 6 % of this area
90%50%10%5%1%
01222
PC03: Skarn Cu (18b) (Mesozoic) , covers 86 % of this area
90%50%10%5%1%
00001
PC08: Porphyry Cu (17) (Mesozoic) , covers 86 % of this area
90%50%10%5%1%
00011
PC17: Massive sulfide, Sierran kuroko (28a.1) (Jurassic) , covers 1 % of this area
90%50%10%5%1%
213252525
PC26: Epithermal vein, quartz-adularia (25c + 25d) (Tertiary) , covers 32 % of this area
90%50%10%5%1%
01222
PC28: Hot-spring Au-Ag (25a) (Tertiary) , covers 32 % of this area
90%50%10%5%1%
01357
PC40: Low-sulfide Au-quartz vein (36a) (Mesozoic) , covers 65 % of this area
90%50%10%5%1%
2691215