Statistical mineralogy based on the heavy fraction of sand soils

The object of this work is to realize a detail mineral statistical method in a soil catena who is in Cordoba Province. Argentine. The heavy mineral fraction of the 100-50 micron rates was made up by petrographical microscope. The sedimentary discordances are discriminated by the mineral variation (VM) between the three parental materials in order to establishing sedimentary differences, determined by Karisson (1993). The heavy mineral fraction is shows constituted mainly by muscovite, biotite, hornibicude, opaque, hiperstene and plagioclase. That parental materials show sedimentary differences, even though all are corresponded to a loesic deposits.(author)