10. Shupletsov A.F., Burov V.Yu., Latysheva M.A. Specific characteristics and features of commercial use of non-industrial goldfields of Trans-Baikal Region. Razvitie rossiiskogo obshchestva: problemy i perspektivy. Materialy Vserossiiskoi nauchno-prakticheskoi
2021-6-17 · Estimation of commercial component limit concentration in ore at the preliminary design stage of open mining of ore fields Limit technical and commercial performance indicators of open mining shall mean values of indicators covering all capital, operating costs, taxes, payments of interest rates related to mining of the ore field in full.
2004-12-21 · non-commercial purposes by those studying the environment or working to protect it. Images Asia P.O. Box 2 Prasingha Post office Chiang Mai 50202 [email protected] .th [email protected] .th ISBN 974-92649-8-3 Front cover: N''Mai Hka River between Chipwe and Manwin. Gold mining can bring about changes in the structure and ecology of affected rivers.
2021-6-24 · Introduction of risk coefficients is proposed to increase the reliability of geological and commercial assessment of prospected resources. The values of those coefficients should depend on the complexity of geological structure and the extent of exploration; they should decrease from earlier to later stages of deposits development.