Lithochemical characteristics of karst phosphorites of Haranurskoe deposit (South-Eastern Sayans)

The benefits of the article are defined by the deficiency of phosphate fertilizer in Siberia region. Deposits of bedrock and secondary (karst) phosphorites of Oka-Khubsugul basin (Southern Buryatia) that may have industrial significance are still underexplored. Mineralogical and material aspects of karst phosphorites of Haranurskoe deposit that could be able to produce phosphate fertilizer are discussed. Lithochemical layer-by-layer investigation of the karst ore body is accomplished for the first time. 10 clusters, based on the 53 quantitative analysis of oxides, were chosen. It helped to specify litological characteristics of those natural objects.