Mineralogical and geochemical properties of coals of the Mugun deposit (Irkutsk coal basin)

For the first time, the results of complex mineralogical and geochemical studies of coals of the Mugun lignite deposit of Early-Middle Jurassic age have been obtained. The chemical, phase and microelement composition of coals and coal ash, thermal properties, Raman spectroscopy and isotopic composition of carbon matter have been studied. It has been established that peneplain, characterized by a high degree of laterite-hypergene alteration of rocks, served as a source of terrigenous material for Mugun coals. Many geological, mineralogical, geochemical and technological properties of the studied coals are correlated with the degree of lateritization of the terrigenous admixture.