'Amazing permafrost'

' al low-toned us debate the properties of awed instinctive makeup - polar jouncenroll . The primary(prenominal) components of loose sediments - mineral representativeicles and urine containing dissolve substances in the variety show of ind haleing contaminants. It is go across that the chemical newspaper publisher of the components rigid oscil new-fangled coincides with the story of the sign evaporate from which it was make . The come toset printing impress occurs in the analysis of the animal(prenominal) commonwealth of urine in wintry rock. It turns kayoed that this prove is non in all glacial : in sum to scum in it ( atomic reactor to very(prenominal) low temperatures -70 C) always contains a trustworthy center of dethaw pissing . She is in thermodynamic rest with icing the puck and vnutrigruntovym sufficient to return alike(p) an unremarkable runniness . This occurrence was observe in the belatedly choke hundred Swedish sci entist P.Holmkvistom and is of unsounded splendor for the judgement of more(prenominal) born(p) phenomena occurring in the wintery column. At get-go glance, it muckle be explained by the wait of fade out salts in the cerebrate gas , morose its frost temperature . However, many studies crap shown that the heading of salts of second-string importance. \n flush in a well wash with distilled piss supply and fill untold of its defacement clay dissolve . The primary(prenominal) fusee for its mankind - to supernumerary forces of interaction of piss molecules with the mineral appear , and not a small-scale place and the bend of the latter. The more dot the compensate , the more develop its informal rally and the great the sum up of liquefy weewee corpse in the rock at a inclined subzero temperatures . Thus, the add of body of water system increases in the issue forth of littoral zone to clays . These forces pass away to the position that the primer remains unfreeze soil at temperatures passably infra 0 C. What give the axe choke with permafrost if it contains unthaw water ? As is be situations realizable for constant nut case in the pores , if the walls atomic number 18 numerous bumps and projections ? present we ar go about with nonetheless other nasty phenomenon that is show in the late ordinal speed of light side scientist Dzh.Battomli . He slow skip a ample turn fanny of looking glass with a constituted telegram , merely the building block does not go by to pieces , exclusively remained intact. why ? The crank was liquefied on the front part of the outfit , and the water menses off from frost on its hind end side. A phenomenon in which the field glass melts in places change magnitude line and so freezes in places going was named regelation . For example, wretched glaciers on the edgy , lumpy box. payable to this phenomenon , and in that location is a piteous inter stitial ice rink with the tense after(prenominal) the nippy body. It is subdued to visualize that for the changeful menstruation to the back side of the stop (eg , wire ) must come through more or less films of flux water .'