- Mineral Resources
- Online Spatial Data
- National Mineral Resource Assessment 1998
Mineral assessment tracts in Guilford county, North Carolina
- SA05: Massive sulfide, kuroko (28a) (Proterozoic - Cambrian) , covers 58 % of this area
- The number of undiscovered deposits in this tract was not estimated.
- SA06: Massive sulfide, kuroko (28a) (Proterozoic - Cambrian) , covers 16 % of this area
- The number of undiscovered deposits in this tract was not estimated.
- SA13: Hot-spring Au-Ag (25a) (Proterozoic - Cambrian) , covers < 0.1 % of this area
- The number of undiscovered deposits in this tract was not estimated.
- SA15: Hot-spring Au-Ag (25a) (Proterozoic - Cambrian) , covers 1 % of this area
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- SA20: Low-sulfide Au-quartz vein (36a) (Paleozoic) , covers 26 % of this area
- The number of undiscovered deposits in this tract was not estimated.
- SA22: Low-sulfide Au-quartz vein (36a) (Paleozoic) , covers 59 % of this area
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- SA23: Low-sulfide Au-quartz vein (36a) (Paleozoic) , covers 15 % of this area
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