Please use this identifier to cite or link to this item: https://dspace.ncfu.ru/handle/20.500.12258/2732
Title: Geochemical fields of rocks and soils of the greater Caucasus: An evolutionary approach and research methods
Authors: Degtyareva, T. V.
Дегтярева, Т. В.
Shalnev, V. A.
Шальнев, В. А.
Lysenko, A. V.
Лысенко, А. В.
Keywords: Geochemical fields;Microelements;Rocks;Soils;The Caucasus
Issue Date: 2017
Publisher: North Caucasian Institute of Mining and Metallurgy, State Technological University
Citation: Degtyareva, T.V., Shalnev, V.A., Lysenko, A.V. Geochemical fields of rocks and soils of the greater Caucasus: An evolutionary approach and research methods // Sustainable Development of Mountain Territories. - 2017. - Volume 9. - Issue 3. - Pages 219-232
Series/Report no.: Sustainable Development of Mountain Territories
Abstract: This article aims to track the regional variability and interactions of geochemical fields of rocks and soils within the Northern slopes of the Greater Caucasus and to reveal their formation peculiarities in the course of evolution of the region. Object of the studylitho-, pedogenical, geological and chemical (pedogeochemical) fields of microelements, regional specific of which was revealed on the basis of data on the content of 25 chemical elements in them. Methods: Variability of lithogeochemical background within lithogeochemical fields is characterized by the regional concentration coefficients (RCC), background of pedogeochemical fields is determined by the coefficients of radial differentiation (R). A comparison of data on lithogeochemical differentiation of microelement fields on regional background and pedogeochemical fields comparative to soil-forming materials has allowed to discover features of the migratory interactions between the litho- and pedogeochemical fields, taking into account timing and regional differences. Results: Typification of lithogeochemical fields was implemented according to the leading associations of chemical elements in compliance of their geochemical classification. Genetic groups of the organo-mineral, nutrient-leached and nutrient-intensive componential pedogeochemical fields were detected in landscape altitudinal zones of the Alpine landscapes of the Greater Caucasus. The interaction analysis between litho- and pedogeochemical fields of the Greater Caucasus allows to distinguish four redistribution groups of chemical elements: two groups of inverse correspondence and two groups of direct correspondence with the depletion or accumulation of trace elements. Each redistribution group is characterized by chemical elements, which are a part of compounds with a certain degree of solubility and stability. In the course of evolution of the region there has developed its own particular interaction of geochemical fields dedicated to various genetic types of rocks. The evolutionary interaction of litho- and pedogeochemical fields of igneous and metamorphic rocks of an axial zone of the Greater Caucasus have led differentiation and clearer division of rocks according to their solubility. Conclusions: The distribution analysis of chemical elements in geochemical fields of rocks of different genesis and age allows us to discuss the most important factors that have determined the formation of modern microelement composition of regional litho- and pedogeochemical fields of modern landscapes: different solubility and stability of chemical elements in rocks and soils; the duration and intensity of weathering processes of rocks, which appeared on earth's surface
URI: https://www.scopus.com/record/display.uri?eid=2-s2.0-85031925506&origin=resultslist&sort=plf-f&src=s&nlo=&nlr=&nls=&sid=80a2f62d981d9f38f79b17e6c579e2ea&sot=aff&sdt=sisr&sl=145&s=AF-ID%28%22North+Caucasus+Federal+University%22+60070541%29+OR+AF-ID%28%22%5bNo+Affiliation+ID+found%5d%22+60070961%29+OR+AF-ID%28%22%5bNo+Affiliation+ID+found%5d%22+60026323%29&ref=%28Geochemical+fields+of+rocks+and+soils+of+the+greater+Caucasus%3a+An+evolutionary+approach+and+research+methods%29&relpos=0&citeCnt=1&searchTerm=
http://hdl.handle.net/20.500.12258/2732
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