- Mineral Resources
- Online Spatial Data
- National Mineral Resource Assessment 1998
Mineral assessment tracts in Trinity county, California
[Additional scientific data in this geographic area]
- PC03: Skarn Cu (18b) (Mesozoic) , covers 54 % of this area
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- PC08: Porphyry Cu (17) (Mesozoic) , covers 60 % of this area
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- PC10: Massive sulfide, Cyprus (24a) (Jurassic) , covers 39 % of this area
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- PC11: Massive sulfide, Besshi (24b) (Mesozoic) , covers 22 % of this area
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- PC14: Massive sulfide, Sierran kuroko (28a.1) (Jurassic) , covers 39 % of this area
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- PC15: Massive sulfide, kuroko (28a) (Devonian) , covers 0.6 % of this area
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- PC40: Low-sulfide Au-quartz vein (36a) (Mesozoic) , covers 63 % of this area
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