Facial features and magnetic susceptibility of ore-hosting sediments of Bakchar iron ore occurrence (Tomsk region)

Abstract

Due to hydraulic mining improvement there is a possibility to development prospects of Bakchar ore occurrence. There are various types of ores identified within the ore occurrence and hydraulic mining can be applied to extract loose ore only. The paper deals with loose ore contouring within the orefield based on the result of facies analyses. It also aims to ground the method to identify productive strata in the geological section. In Bakchar enclosing rock mass there are facies of oolitic sands, terrigenous silt sandstones and aleuric clay. It is found that friable iron ore of Bakchar deposit, which is possible to be developed by hydraulic mining, is confined to oolitic sands facies. Characteristic parameters of the magnetic susceptibility of lithological types and facies of Bakchar ore-hosting unit were calculated. The obtained data could be used to predict the perspective ore horizons for hydraulic mining and to identify sediments containing oolitic iron ore. Facial features and magnetic susceptibility of ore-hosting sediments of Bakchar iron ore occurrence (Tomsk region).

Keywords

• Bakchar iron ore occurrence
• West Siberian iron ore basin
• oolitic ore
• magnetic susceptibility measurements
• kappametriya
• facies