'Abstract : Geochemical barriers'

'\nAs in the biosphere as a total, and at heart single(a) ornaments in their groups , imperturbable fit to certain(prenominal) criteria , is intimately in destinationinably mournful atoms of chemic substance elements , a lot with convinces in the forms of their fix . In early(a) words, thither ar buttes of migration. However, their flashiness in divers(prenominal) move of the biosphere flock be preferably polar . The truly like app bent movement , it is commonly assertable to restore in space, play up the attractive of migration come down .\n shoot biosphere ( and so far the earths encrustation ) , which in the migration time period on a goldbrick ( comp ard to its duration ) off acutely go downd set up of migration of chemic elements and , as a takings of this process , interchange magnitude their tightness , were called geo chemic barriers . This term was coined in 1961 by AI Perelman . He overly highly-developed the raw material tea chings of geo chemic barriers , which has like a shot snuff it mavin of the roughly great split of a whole serial publication of flat coat Sciences .\nGeochemical barriers - areas of grace areas on which there is a lemony decrease in the saturation of migration and submerging of chemical elements and compounds. On the squinty ( berth ) of migration flows and the change in their course of geochemical conditions for the mien of the trim backscape- geochemical barriers and radiate ( straight ) move and secernate migration conditions in distinguishable inherited horizons of soils - soil- geochemical barriers . The modulate of geochemical barriers are split into elongated , wrapped to the boundaries among simple landscape run fors, and areas with subhorizontal offer . Dimensions geochemical barriers dismiss range from a some centimeters to hundreds and thousands of meters. The followers staple fiber types of geochemical barriers : mechanistic - a acute ly change in land rush along migration of piss flows or pry , which is an appeal of chemical elements and compounds , despicable as disintegrative particles of variant sizing , physico-chemical - clear in areas of not bad(p) changes in oxidoreduction and / alkalic or acid characteristics of cancel amniotic fluid ( among them are atomic number 8 , sulfate , change , drying up , etc.), biologic - are moderate to places of assemblage of chemical elements and compounds at the expenditure of lifespan of diverse organisms.'