Features of Additional Impact of Biocolloidal Processes on the Geomechanical Transformation of Deep Clayey Oceanic-Marine Sediments

The influence of various factors, such as physical, colloidal, nanochemical, geomechanical, and additionally microbiogenic factors, on the formation of nanostructured phase contacts in ocean-sea polydisperse sediments and their rheological behavior on real and model iron-aluminosilicate mineral formations (IAS) was investigated and clarified. The formation of different nano- and microstructures of iron silicate compounds is similar in nature and leads to the appearance of nanostructures such as goethite (α-FeOOH) or magnetite Fe3O4, which are part of clay materials and increase their adsorption and rheological properties by 1.5–2 times. Microbiological processes in the structures of IAS also lead to the formation of goethite or magnetite with Mn3O4 admixtures, depending on the pH level, and additional biocolloidal transformations occur with the participation of preliminary inorganic nanochemical reactions. The generalized and refined data indicate that nanochemical, mechanochemical, and physical–mechanical interactions in nanostructured iron-silicate systems in the presence of biocenoses are controlled first by geomechanical and then by biocolloidal processes. Depending on the moisture content of iron-silicate dispersions, on large abyssal plains and dips at depths of up to 2–8 km, sediment flow occurs mainly in a laminar or accelerated mode under the influence of internal gravitational waves. This process takes place over geological epochs with the participation of sorption-active clay minerals that contain nanoparticles in the Na form, which play an important role in the sorption of pollutants.