THE ESTABLISHMENT OF A TEMPERATURE MODE DURING ACCRETION AT THE FINAL STAGE OF FORMATION LAND

Author(s):  V. N. Tyupin, Dr., Prof., Belgorod State National Research University, Belgorod, Russia, tyupinvn@mail.ru

T.I. Rubashkina, candidate of Sciences, associate Professor, Belgorod State National Research University, Belgorod, Russia

Issue:  Volume 42, №1

Rubric:  Earth sciences

Annotation:  In article on the basis of the known mechanism of accretion, which leads to warming of the Earth's surface during its collision with planetesimals, the formula for determining the temperature. The formula obtained on the basis of the law of conservation of energy, when at the first stage the kinetic energy is spent on elastic-plastic deformation of near-surface rocks. In the second, phase the elastic part of the deformation transformered into heat. Mathematical analysis shows that the induced temperature significantly depends on the diameter of the intruding speed of planetesimal and decrease significantly with distance from the surface of the Earth. Numerical calculations give a value of the induced temperature comparable to the melting temperature of rocks the Earth's crust.

Keywords:  accretion, planetesimal, the surface of the Earth, the formula for the induced temperature, the energy conservation law, the numerical calculations.

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