Interphase Nano- and Microstructural Transformations of Disperse Suspensions of Iron-Aluminosilicate Deep-Sea Sediments

This study investigates the structural, geomechanical, and nanochemical transformations of oceanic-marine suspensions and sediments of natural polymineral clayey iron-aluminosilicates (IASs), as well as nanostructured iron-aluminosilicates (NIASs) under the conditions of reshaping their adsorption properties. The mechanisms influencing these processes on fine-dispersed deep-sea pelagic sediments mixed with coarse-dispersed carbonate-iron-aluminosilicate siliceous rocks (turbidites) have been refined. Their behavior on gentle slopes and plains at depths of 0.2–6 km and their interaction in deep-sea (8–11 km) intercontinental depressions and trenches have been examined. For the first time, mechanisms of complex synergetic processes of interphase transformation, formation with increasing specific surface, movement, flowing, as well as coagulation-condensation nano- and microstructuration, and subsequent densification of sorption-active carbonate-clayey iron-aluminosilicate compositions on plains and in trenches with prohibited or toxic pollutants adsorbed by them, preserving in IAS and NIAS a developed nano- and microporous state according to the regularities of physicochemical geomechanics, biocolloidal, and colloidal nanoscience, are considered and justified. The role of thermal and gravitational effects on the emergence of internal gravitational waves and the movement with such waves of iron-aluminosilicate sediments on large (up to 6000 km in length) abyssal plains and the subsequent sliding of sediments into trenches with depths of 6–11 km in the form of muddy flows along with ocean pollutants has been preliminarily considered. The significant influence on such phenomena of hyperanomal and ultraanomal viscosity effects of iron-aluminosilicate dispersions while plastic to elastic state transitioning and vice versa in trenches and on plains with isolation and subsequent preservation of pollutants is highlighted.