Próba zastosowania rachunku statystycznego dla potwierdzenia hipotezy o pierwotnym pochodzeniu metali w skałach triasowych z obrzeżenia GZW

Abstract

AN ATTEMPT TO USE STATISTICAL CALCULATIONS FOR SUPPORTING THE HYPOTHESIS OF PRIMARY ORIGIN OF METALS IN TRIASSIC ROCKS AT THE MARGIN OF THE UPPER SILESIAN COAL BASIN Summary The results of chemical and spectral analyses of content of metals and CaO, MgO and Al2O3 in carbonate Triassic rocks in the Upper Silesia were subjected to statistical treatment in order to test the hypothesis of primary origin of dispersed Zn and Pb sulfides. There were calculated correlations between metals and basic components of the studied rocks. The correlations appeared significant for the Gogolin Dolomites and weak for the Diplopora Dolomites whereas metals do not correlate with any rock components of the Ore-bearing Dolomites. This made it possible to state that dispersed Zn and Pb ores are syngenetic with dolomite in the Gogolin Beds. This statement does not concern richer mineralization as the studies were intensionally limited to samples with Zn+ Pb content below 0.65%. In tum, even this dispersional metal content appears unrelated to deposit in the Ore-bearing Dolomites, which suggests its epigenetic character there. With reference to the question of either common or different source of Cu in relation to that of Zn and Pb it was found that the sources had to be different in the case of Triassic rocks as there is no clear interrelationships between occurrences of these metals. The correlations were found to be significant in the case of Paleozoic rocks, showing common origin of these metals.