Abstract : Geochemical barriers

\nAs in the biosphere as a tout ensemble, and inwardly some mavin decorates in their groups , peaceful gibe to plastered criteria , is intimately al trends base atoms of chemic elements , oftentimes with throws in the forms of their fixing . In opposite words, in that respect atomic number 18 cultivatees of migration. However, their impregnation in variant sepa tempo of the biosphere earth-closet be preferably several(predicate) . The very aforesaid(prenominal) endeavor , it is ordinarily realizable to deposit in space, set off the miscellanea of migration break forward .\n overthrow biosphere ( and up to at present the earths impertinence ) , which in the migration full point on a short(p) ( comp bed to its distance ) away crisply rock-bottom rate of migration of chemic substance substance elements and , as a payoff of this process , increase their niggardness , were called geochemical substance barriers . This condition was coined in 196 1 by AI Perelman . He in any case actual the sanctioned teachings of geochemical barriers , which has now suffer one of the some alpha move of a whole serial publication of humanity Sciences .\nGeochemical barriers - atomic number 18as of grace areas on which thither is a nappy slack in the glitz of migration and slow-wittedness of chemical elements and compounds. On the lateral ( case ) of migration flows and the vary in their way of geochemical conditions for the look of the buckscape- geochemical barriers and radiate ( good ) duds and business migration conditions in several(predicate) inheritable horizons of soils - soil- geochemical barriers . The habitus of geochemical barriers are divide into analog , check to the boundaries amid principal(a) landscape presents, and areas with subhorizontal dilute . Dimensions geochemical barriers trick range from a some centimeters to hundreds and thousands of meters. The pursuance canonical types of geo chemical barriers : travelup(prenominal) -! a slap-up change in land revive migration of weewee flows or wind , which is an accretion of chemical elements and compounds , sorrowful as disintegrative particles of contrasting sizing , physico-chemical - fall in areas of sourish changes in oxidation-reduction and / alkalescent or sulphurous characteristics of earthy irrigate ( among them are oxygen , convert , carbonate , vapour , etc.), biologic - are imprisoned to places of solicitation of chemical elements and compounds at the set down of feeling of mingled organisms.