The authors range low-grade copper-nickel ore and mining waste represented by overburden dumps, mill tailings and slag in the territory of the Murmansk Region by the criterion of potential ecological hazard. The determinants of mobility of heavy metals formed in oxidation of sulphides are the content of barren minerals (silicate matrix), pH of pore solutions and exposure to atmospheric weathering (acid rains). The criteria of natural copper-nickel ore and mining waste processability are determined.
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Svetlov et al. (2020) studied this question.
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