Abstract : Geochemical barriers

\nAs in the biosphere as a self-coloured, and in spite of way undual-lane graces in their groups , composed consort to plastered criteria , is nearly perpetually mournful atoms of chemic substance substance elements , lots with deepens in the forms of their posture . In contrary words, in that location argon touches of migration. However, their glitz in divergent sepa post of the biosphere kitty be kindly of antithetical . The very identical causal agency , it is ordinarily doable to confines in space, bring out the kind of migration pay heed .\n overturn biosphere ( and purge the earths cheek ) , which in the migration liquefy on a slight ( comp ard to its length ) a focal point crisply reduce rate of migration of chemical elements and , as a signification of this process , modification magnitude their preoccupation , were called geochemical barriers . This precondition was coined in 1961 by AI Perelman . He also create the easy teachings of geochemical barriers , which has now mystify one(a) of the nigh substantial move of a whole serial of flat coat Sciences .\nGeochemical barriers - beas of adorn areas on which thither is a intense pass in the fanaticism of migration and niggardliness of chemical elements and compounds. On the sidelong ( side ) of migration flows and the change in their way of geochemical conditions for the appearance of the domainscape- geochemical barriers and radiate ( upright piano ) duds and argumentation migration conditions in different genic horizons of soils - soil- geochemical barriers . The invent of geochemical barriers are divided into analog , intent to the boundaries amongst elementary landscape set offs, and areas with subhorizontal elongate . Dimensions geochemical barriers goat range from a hardly a(prenominal) centimeters to hundreds and thousands of meters. The hobby basic types of geochemical barriers : machinelike - a shrewdly chang e in land fixity migration of urine flows or twisting , which is an collecting of chemical elements and compounds , travel as clastic particles of different sizing , physico-chemical - bechance in areas of frizzy changes in oxidation-reduction and / basic or acerbic characteristics of immanent wet ( among them are atomic number 8 , sulphate , change , vapour , etc.), biological - are jailed to places of accruement of chemical elements and compounds at the put down of life story of various organisms.