Rock gold mining industry indicator reference table

Table rock gold mine industrial index reference

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

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