ZALEŻNOŚĆ MIĘDZY WYSTĘPOWANIEM MINERAŁÓW KRUSZCOWYCH A CHARAKTERYSTYKĄ GEOCHEMICZNĄ MATERII ORGANICZNEJ W ŁUPKU MIEDZIONOŚNYM OBSZARU ZŁOŻOWEGO KGHM POLSKA MIEDŹ S.A.

Abstract

RELATIONSHIP BETWEEN THE OCCURRENCE OF ORE MINERALS AND GEOCHEMICAL PROPERTIES OF ORGANIC MATTER IN THE KUPFERSCHIEFER STRATA, KGHM POLSKA MIEDŹ S.A. MINING AREA

Abstract. General characteristics of ore minerals and organic matter in selected areas of the KGHM PM S.A are discussed in the paper. For the study, 5 samples from the Industrial Głogów Głęboki field and 11 samples from the Sieroszowice mining field have been collected At both locations, sampling was carried out from three areas: (I) the depression zone characterized by a relatively high thickness of the Kupferschiefer, (II) the elevation slope with a pronounced decrease of thickness, and finally (III) from the elevation where the Kupferschiefer thickness usually does not exceed 0.1 m. Detailed studies have been carried out on samples from the Kupferchiefer, because this horizon heavily affects the quantity and quality of ore mineralization in other parts of the economic ore deposit. Important relationships between the TOC content, HI and HI/OI indices and the quantity and quality of minerals is discussed. The hydrogen index is well correlated with the quantity of copper sulphides; however, its values below 100 may show quality changes of copper sulphides from Cu+ to Cu2+ (covellite). A low value of the HI/OI index represents samples from the transition zone, were sulphide contents are variable.