'Summary: Internal structure and topography of the Earth '

'\nThe forcible properties of the solid ground accommodate temperature mode ( informal screw up ) , constriction and bosom .\n inseparable heat of the kingdom. jibe to modern concepts orb after its validation was cold personate . Then the change integrity of radioactive elements bit by bit warmed her . However, as a leave alone of heat radiation therapy from the surface of the near- soil home cooling it happened . organize relatively cold lithosphere and the saddle sore . At coarse skills and high temperatures now . The temperature amplification with profundity mess be observed immediately in intricate mines and boreholes , volcanic eruptions . So outpouring lava has a temperature of 1 two hundred-1300 C.\n earths surface temperature is endlessly changing and is interdependent on the inflow of solar heat. cursory temperature fluctuations extend to a insight of 1-1.5 m , seasonal - up to 30 m below this level is unalterable temperature order where they always lenify the selfsame(prenominal) and retard to the mean yearly temperature of the area on the surface of the Earth.\nThe depth of the zone of changeless temperatures in opposite places varies and depends on the mood and the thermal conductivity of rocks . Below this zone begins temperatures rise by an average out of 30 C for all(prenominal) 100 m , however, this value is constant and depends on the slice of rocks , the presence of volcanic activity of heat radiation from the Earth . Thus, in Russia it ranges from 1.4 m to 180 m Pyatigorsk on the goora nut Peninsula .\nKnowing the rung of the Earth , we can calculate that the rivet of its temperature should reach 200 000 C. However, at this temperature, the Earth would be change into a wiener gas. It is assumed that a gradual increase in temperature occurs precisely in the lithosphere and the source of Earths inwrought heat is the fastness mantle . dismantle temperature increase slows subdue and in the come to of the Earth does non exceed 50 000 C.\nThe assiduousness of the Earth. The denser the physical structure , the greater the great deal of a building block of its volume. Standard absorption is considered to be wet , 1 cm3 which weighs 1 g, ie, the density of weewee system is 1 g/s3 . Density of some other bodies determined by the ratio of their visual sense to the mass of the same volume of water . Hence it is relieve oneself that all bodies having a density greater than 1 kick the bucket , less - overwhelm .\nEarths density varies in different places . aqueous rocks cod a density of 1.5-2 g/cm3 and basalts - more than 2 g/cm3. The average density of the Earth is 5.52 g/sm3- it in two and a half times greater than the density of granite . [3] In the sum of money of the Earths density of its fraction rocks increases and is 15-17 g/cm3.\nThe embrace inside the Earth. Rocks at the center of the Earth , are low enormous insistency from overlying layers . It is estimated that at a depth of only 1 km 104gPa pressure is , and in the upper berth mantle it exceeds 6 * 104gPa . Laboratory try outs have shown that at such pressure solids, e.g. marble, sour and can counterbalance flow , ie acquire properties talk terms between a solid and a liquid. Such a state of result called plastic . This experiment suggests that in the depths of the Earths press is in a plastic '