The average value of temperature rise

On the other hand, two different methods of research - definition of water temperatures in deep boreholes and the temperature of rocks in mines and tunnels - lead to different results. The reasons for differences in the numbers are very diverse: coal mines due to take place in their chemical oxidation processes have a relatively high temperature, the same can be said about those mines, which contain metals are easily destroyed by sulfur (pyrite). In addition, metals are good conductors of heat, can carry it from the deeper parts of the crust. Keys, beating with a considerable depth, brings with it heat, water is penetrating the surface and promotes cooling. According to Gyuyssena, the temperature affects the thermal conductivity of not only those species which are located below, but also those that lie at the top. Degree increase in temperature with depth is also dependent on surface properties. In the high mountains, with a relatively small mass, cooling is rapid, and because the geothermal degree here is great. Otherwise there is at the bottom of various vodovmestilisch: In general, the temperature at the bottom of deep lakes reaches only 4 °, and in the sea, it descends even lower, so the temperature increase under such waters should be very fast. In view of these conditions solution to the issue presents a series of insurmountable difficulties. Since the observation in boreholes provide a more permanent figure than the observation in the mines and the mines, then they mainly use and for further findings; calculated from this average geothermal degrees = 33 m, take that number and correspond to generally raise the temperature of the Earth depth. However, figures obtained by direct measurement of the temperature of the rocks, speak in favor of a slower increase in the Earth's heat and force with caution to the last conclusion, surely, that the average geothermal degrees at 33 m should be regarded as an approximate number that in the future could change significantly. We must confess that at the moment science is still far from any kind was a positive decision.