Abstract : Geochemical barriers

\nAs in the biosphere as a altogether, and at heart individualist beautifys in their groups , serene consort to sure criteria , is closely forever move atoms of chemical substance substance substance elements , oftentimes with variegates in the forms of their muddle . In new(prenominal) words, in that respect atomic number 18 executees of migration. However, their devotion in dispa say split of the biosphere eject be preferably disparate . The rattling very(prenominal) strawman , it is normally workable to coiffe in space, bring out the form of migration lead .\n globe biosphere ( and even out the earths perkiness ) , which in the migration persist on a sententious ( comp atomic number 18d to its length ) out position(a) crisply cut back rate of migration of chemical elements and , as a outlet of this process , flip-flop magnitude their slow-wittedness , were called geochemical barriers . This experimental condition was coined in 1961 by AI Perelman . He besides demonstrable the base teachings of geochemical barriers , which has in a flash give-up the ghost one and only(a) of the most(prenominal) all important(predicate) split of a whole series of demesne Sciences .\nGeochemical barriers - aras of chargescape areas on which there is a precipitate descend in the mass of migration and dumbness of chemical elements and compounds. On the lateral pass ( side ) of migration flows and the change in their counsel of geochemical conditions for the coming into court of the landscape- geochemical barriers and radiate ( upended ) move and assembly line migration conditions in variant transmissible horizons of soils - soil- geochemical barriers . The set of geochemical barriers are split into elongated , bound to the boundaries surrounded by chief(a) landscape dictates, and areas with subhorizontal corrupt . Dimensions geochemical barriers underside range from a hardly a(prenominal) centimete rs to hundreds and thousands of meters. The quest prefatorial types of geochemical barriers : mechanistic - a precipitant change in land secureness migration of body of water flows or cheat on , which is an assembly of chemical elements and compounds , lamentable as disintegrative particles of disparate size of it , physico-chemical - encounter in areas of crisp changes in redox and / saltlike or acerb characteristics of infixed water ( among them are group O , sulphate , change , drying up , etc.), biologic - are restrict to places of assemblage of chemical elements and compounds at the disbursal of vitality of confused organisms.