Identification of the Main Factors of Sedimentogenesis and Early Diagenesis in Bottom Sediments of the Kara Sea Based on Methods of Mathematical Statistics

Methods of mathematical statistics were used in this article to study the processes of sedimentogenesis and early diagenesis of surface sediments in the Kara Sea. Correlation analysis established two groups of oxides associated with certain particle-size types of deposits. The one-way analysis of the variance revealed the regularity of the sand, silt, and pelite distribution in accordance with sedimentation conditions by differences in their mean contents. These data were used to compile maps of the sand, silt, and pelite distribution within the studied area of the Kara Sea. Some features of the main factors of sedimentogenesis in this region were revealed on the basis of statistical data. The relationship between the Mn/Al, Mn/Fe, and MnO/SiO2 ratios and depth established by the univariate regression analysis enabled us to study the intensity of early oxidative diagenesis within the shelf zone of the Kara Sea.