- Mineral Resources
- Online Spatial Data
- National Mineral Resource Assessment 1998
Mineral assessment tracts in Yuma county, Arizona
[Additional scientific data in this geographic area]
- SB03: Skarn Cu (18b) (Mesozoic - Tertiary) , covers 18 % of this area
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- SB11: Porphyry Cu (17) (Laramide) , covers 2 % of this area
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- SB17: Porphyry Cu-Au (20c) (Laramide) , covers 58 % of this area
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- SB20: Polymetallic replacement + skarn Zn-Pb (19a + 18c) (Mesozoic - Tertiary) , covers 18 % of this area
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- SB24: Distal disseminated Ag-Au (19c) (Mesozoic - Tertiary) , covers 18 % of this area
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- SB29: Epithermal vein, Comstock (25c) (Tertiary) , covers 2 % of this area
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- SB34: Epithermal vein, quartz-alunite (25e) (Tertiary) , covers 43 % of this area
- The number of undiscovered deposits in this tract was not estimated.
- SB39: Hot-spring Au-Ag (25a) (Tertiary) , covers 36 % of this area
- The number of undiscovered deposits in this tract was not estimated.