How hot is the center of the Earth? How is it measured?

The temperature at the center of the earth is 6600, but it is not measured, but reasonably speculated through the facts that have been discovered and some experiments. The Earth is inaccessible, and it has not been well verified whether the speculation about the center of the earth is correct. From the inside to the outside, the earth is divided into cores.

mantle, and crust in three layers. It is about 3,200 kilometers from the outermost layer of the Earth's core to the center of the Earth, so the surface is not noticeable, and the heat is retained in the Earth's interior.

As the depth increases, the temperature continues to rise, which has been proven in a number of mining and exploration programs for ultra-deep deposits. in South Africa.

In the deepest part of the gold mine, the temperature can easily exceed 50; In the Kola ultra-deep pit project in Russia, the temperature rose to 177 at 9,500 meters underground; The water gushing out of the hot springs can be as high as; Volcanic eruptions.

, it will spew out more than 1,000 degrees of hot magma. All of this can be explained that the interior of the earth is very hot, and the temperature is getting higher and higher as the depth increases.

But there must also be a limit to the temperature inside the earth, and it can't be too high. As the depth of exploration drilling increases, the density of the earth continues to rise, and the density of the rocks reaches a certain point where it does not rise again, and all that remains is the metal element.

Finish. The elemental composition of the earth and the material emitted by magma are speculated to contain large amounts of iron, nickel, sulfur and other elements in the earth's core.

In the laboratory, scientists simulated the high-pressure environment in the interior of the earth and found that with the increase of pressure and temperature, the melting point of iron is rising, through ** waves.

It was also found that the outer layer of the earth's core is liquid and the inner core is solid, taking into account factors such as the elemental composition and pressure of the earth's core.

It is inferred that the temperature of the Earth's core can reach 6600.

Unfortunately, this speculation has not been validated at this time. Scientists had hoped to drop a probe from the crater and let it sink into the Earth's core, but analysis revealed that it would take thousands of years. There are also neutrinos that aspire to penetrate the Earth through observation.

to observe the Earth indirectly, but it seems that no major progress has been made so far.

The Earth's interior, the Earth's core, was made up of liquid substances such as iron and nickel in the early days of the Earth's formation. Among the materials that make up the earth, radioactive elements such as uranium, thorium, potassium 40, and actinium release huge amounts of heat energy in the process of converting them into other materials. The center of the earth is measured by ** waves, and the outside is liquid and the inside is solid.

Combined with the gravitational pull of the earth, we know the elemental composition of the earth's core, and then estimate the pressure of this interface, so that we can also know what kind of temperature the iron will have under such pressure. As a result, the Earth's core is composed of iron-nickel and temperatures in the range of 4000 to 6800. Experiments have confirmed that the temperature rises by 33 per kilometre for every 1 kilometre down from the oil borehole on the surface.

There are rocks from the surface to 200 kilometers underground, so the temperature within 200 kilometers underground has not yet melted the rocks. However, when there is a lot of underground pressure, high temperatures will form that melt the rocks. Despite this, the temperature is only about 2000.

But the temperature cannot be measured 200 kilometers underground. Therefore, the temperature of the center of the earth is estimated from the uranium and thorium content of meteorites and meteorites that fall on the earth. Because the composition of meteorites and meteorites is not much different from the composition of the Earth's interior.

The temperature of the center of the earth is more than 6000, because the temperature of the center of the earth is very high, so after measuring its outer boundary, and then according to the calculation, it is estimated that the temperature of the center of the earth is so high.

It's 6000 degrees Celsius. Very high temperatures, able to melt all substances. This value is calculated according to the formula.

The earth's core is divided into two parts: the inland core and the foreign core. The closer the Earth's interior is to the Earth's core, the higher the temperature, and the temperature gradient near the Earth's center point cannot be extrapolated to a depth of tens of kilometers. The mechanism of heat transfer deep underground is extremely complex, and the theory of heat conduction often fails to give reliable results in estimating the temperature distribution in the Earth's interior.

But based on other geophysical phenomena, the temperature at certain specific depths of the Earth's interior can be estimated. The results are as follows: at a depth of 100 km, the temperature is close to the melting point of the rock there, about 1100 1200; At depths of 400 km and 650 km, the rocks undergo phase changes at temperatures of about 1500 and 1900 °C, respectively. At the core mantle boundary, the temperature is above the melting point of iron, but below the melting point of mantle matter, about 3700; At the boundary between the outer core and the inner core, the depth is 5,100 kilometers, and the temperature is about 4,300 meters, which is estimated to be about the same temperature in the center of the Earth.

Internal Structure The layered structure of the Earth is basically divided by the propagation velocity of the ** waves (p and s). There are significant transverse inhomogeneities in the upper layers of the Earth: the thickness of the continental crust and the oceanic crust is very different, and the sea water covers only 2 3 percent of the ground.

The temperature is estimated by scientists to be about 6,000 degrees Celsius.

The temperature of the Earth's center is 100 times that of the surface.

The closer the Earth's interior is to the Earth's core, the hotter it gets, and scientists estimate that the temperature at the Earth's center is about 6,000 degrees Celsius.

Scientists have experimentally confirmed that for every 1 kilometer increase in depth from the oil borehole on the surface, the temperature rises by 33. However, 200 kilometers from the surface to the underground are rocks, so the temperature within 200 kilometers underground has not yet reached the level of melting the rocks, and the temperature is only about 2,000. However, the temperature beyond 200 kilometers underground cannot be measured, so scientists estimate the temperature at the center of the earth from the uranium and thorium content in meteorites and meteorites that fall on top of the earth.

Because the composition of meteorites and meteorites is not much different from the composition of the Earth's interior. Scientists speculate that the temperature at the center of the Earth generally does not exceed 5,000.

The temperature of the Earth's core is tens of w°.