Rock gold mining industry indicator reference table

project

index

Boundary grade (mass number of molecules)

(1 × 10 ^{- 6} ) ~ (2 × 10 ^{- 6} ), heap leaching oxidized ore is (0.5 × 10 ^{- 6} ) ~ (1 × 10 ^{- 6} )

Minimum industrial grade (mass number of molecules)

(2.5×10 ^{- 6} )～(4.5×10 ^{- 6} )

Average grade of mineral deposits (mass number of molecules)

(4.5×10 ^{- 6} )～(5.5×10 ^{- 6} )

Minimum recoverable thickness

0.8～1.5m, the steep slope is the lower limit, and the gentle slope is the upper limit.

Stone removal thickness

2 to 4 m, underground miners are the lower limit, open pit miners are the upper limit

Non-mine segment rejection criteria

The corresponding project is 10~15m

Non-corresponding project is 20~30m