Estimates of Migration Capability

Migration forms of the aquaphiles belong to most xmstable formations. Their nature and content change not only as a result of changes in hydrochemical environment but also in the process of ground water composition analysis. Component analytical composition includes the content of only most stable compounds and does not reflect migration forms of aquaphiles in reservoir conditions. 

The first attempt on the determination of intensive mobility was undertaken by K.H. Smith in 1913. He dealt not with migration forms but with individual elements. He compared weight concentrations of the elements in dry residue of river water and of igneous or sedimentary rocks based on the data by Frank Wiglesworth Clarke (1847-1931). The macro-component contents were expressed in the form of oxides (Table 3.2). He compared the obtained differences with the difference in CaO oxide and as a result identified a series of most mobile metals in groxmd water composition. K.H. Smith did not include in the series the most mobile element, chlorine. 

Boris Borisovich Polynov (1877-1952) believed that most mobile element is chlorine and proposed to evaluate the relative migration ability of elements relative to chlorine according to equation 

Oxides Avg content in river water dry residue, % by weight Avg content in rocks on Earth surface, % by weight Relative element mobility (CaO = 100%) 

Order of migration capability (Polynov) Components Relative mobility of macrocomponents by Cl 

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