Bright Sword starts with the grenade flat.

Chapter 503 The Protagonist's Request for Help

The movement of plates not only creates high mountains and deep canyons, but also causes the thickness of the earth's crust to vary in different regions.

Generally speaking, the oceanic crust is relatively thin, only about five to ten kilometers, while the continental crust is thicker, with an average thickness of about thirty to seventy kilometers. This difference is mainly related to the way the crust was formed.

The oceanic crust is mainly composed of basalt, which is formed by eruption on the seabed due to its high fluidity and rich iron and magnesium content.

However, the process of basalt eruption is not stable, and the oceanic crust forms relatively slowly and is therefore relatively thin.

The continental crust is mainly composed of rocks such as granite, which are relatively more stable. The continental crust was formed over a long period of time and has undergone many orogeny and magma intrusions, so it is relatively thick.

The thickness of the earth's crust is not only related to the way the earth's crust is formed, but is also closely related to plate movement.

The crust of the Wandering Blue Planet is divided into seven major plates and some small plates, which are constantly moving and colliding on the surface of the Wandering Blue Planet. At the plate boundaries, the crust undergoes geological activities such as compression, stretching and fracture, which also affects the thickness of the crust.

The thickness of the crust is also affected by the gamma scale under the crust. The density and thickness of the crust can be inferred by observing the changes in the gravity field on the surface of the wandering blue planet.

By detecting and measuring changes in the gravity field at the surface, geologists can deduce the thickness of the Earth's crust because the material deeper below it is denser.

The study of crust thickness is crucial to understanding the internal structure and evolution of wandering blue planets. The crust is the land where humans live on wandering blue planets. The thickness of the crust determines the distribution of continents and oceans on wandering blue planets, and affects the landform characteristics and resource distribution of wandering blue planets.

Revealing the mystery behind the thickness of the earth's crust will help humans better understand the internal structure of wandering blue planets and the evolution process of wandering blue planets.

And the volcanic eruptions on the wandering blue planet are closely related to the structure of the wandering blue planet.

The interior of the Wandering Blue Planet is divided into three layers: the core, mantle and crust. The crust is located on the surface of the Wandering Blue Planet and is where humans live.

However, the Earth's crust is not a complete outer shell, but is composed of many huge plates that intersect and move with each other. When the plates move, they may collide or separate, which is one of the causes of volcanic eruptions.

Volcanic eruptions are related to the movement of magma, the hot rocky material in the Earth's mantle that emerges when movement of plates creates cracks in the Earth's crust.

Magma has the characteristics of high temperature and high pressure. When it seeks an escape route in the earth's crust, the pressure will continue to increase, eventually forming a volcanic eruption. When a volcano erupts, magma will gush out, forming a crater, volcanic eruption and volcanic ash.

Volcanic eruptions are also related to the type of crust. There are two types of crust: oceanic crust and continental crust, which have different material compositions and densities. Generally speaking, oceanic crust is thicker than continental crust and is rich in metal elements such as aluminum and magnesium.

When the oceanic crust collides with the continental crust, the oceanic crust sinks into the mantle due to its high density, followed by the formation of magma and the activation of volcanic eruptions. This phenomenon is particularly prominent in the Pacific Rim, known as the "Pacific Ring of Fire."

Volcanic eruptions are also related to the release of heat from rogue blue planets. Rogue blue planets store a large amount of heat energy, which is generated by the decay of radioactive substances in the core. When the heat energy accumulates to a certain level, the rocks in the mantle will melt to form magma, which will quickly rise to the surface in the form of a tectonic funnel, forming a volcanic eruption.

Volcanic eruptions are also affected by the rotation of the wandering blue planet. The rotation of the wandering blue planet creates the centrifugal force of the wandering blue planet, which causes the crustal plates to spread outward. During the spreading process, the crustal plates may encounter bottlenecks or cracks, thus triggering volcanic activity.

However, nowadays, both plate movement and volcanic movement no longer exist. With the drilling of cooling wells, the mantle with a temperature of thousands of degrees on the Wandering Blue Planet has been cooled by the cooling wells, and even the core with the highest temperature has also been cooled down.

The interior of the entire Wandering Blue Planet is already filled with large and small, long and short heat exchange pipes for cooling. These pipes not only extract the heat from the interior of the Wandering Blue Planet every moment, but also serve to reinforce the cooled rocks in the mantle rock layer of the Wandering Blue Planet.

These heat exchange pipes made of steel are like the steel bars in reinforced concrete. After the mantle cools, they are firmly embedded in the mantle rocks.

This also allows the crust floating on the mantle to land stably and be firmly fixed to the mantle.

In this way, even if the thrust of the planetary engine becomes larger, there is no need to worry about crushing the earth's crust and causing the magma under the crust to erupt.

Of course, after the core of the Wandering Blue Planet was cooled, there were no more natural disasters such as earthquakes and volcanic eruptions.

However, the solidification of the earth's core also caused the protective magnetic field of the wandering blue planet to disappear.

Fortunately, the main function of the magnetic field of the wandering blue star is actually to resist the stellar plasma storm after it moves away from the sun.

The plasma storms emitted by other stars in the universe are nothing at all. After all, the wandering blue star was so far away that it was only one astronomical unit, 150 million kilometers.

But now the wandering blue star is more than one light year away from the nearest star, so even the stellar storm of the nearest star will not have much power after a distance of one light year.

In addition, the Wandering Blue Planet is equipped with a thin film that can reflect high-energy rays, so there is naturally no need to worry about high-energy rays in the universe.

Of course, after decades of development, the lush vegetation on the surface of the Wandering Blue Planet has already shown that after leaving the solar system, the magnetic field protection of the Wandering Blue Planet has become less important.

At this time, Liu Xiu was resting with his wife Qin Huairu on the artificial beach on the Wandering Blue Star!

Liu Xiu drank a sip of coconut juice produced on Wandering Blue Star and then frowned and said to Qin Huairu:
"Sure enough, after drinking the coconut juice from the golden coconut on the planet Sansanya, I realized that my own coconut juice is so unpalatable. No wonder the coconut juice drinks I bought before were all added with additives instead of being pure and natural!"

After hearing Liu Xiu's words, Qin Huairu said helplessly:

"You gave so many golden coconuts to the Biological Research Institute! Now we can only hope that the Biological Research Institute can produce results as soon as possible!"

After hearing what Qin Huairu said, Liu Xiu wanted to go to the Institute of Biology to see the progress of the research on the golden coconut, and then he suddenly heard the sound of the communicator.

But when I answered the call, I found out that it was the protagonist Kane calling.

Liu Xiu naturally answered the call without hesitation, and immediately after the call was connected, he heard Kane's anxious voice.

During the call, Kane made it clear that he had fallen into a trap, and the enemy used a mission trap to separate him from the Feitian No. 1 spacecraft.

Without the supply of spiritual energy, the combat effectiveness of Feitian No. 1 was greatly reduced. It was trapped by the enemy and unable to escape, so it asked Liu Xiu to come for help and also told Liu Xiu his current coordinates.

(End of this chapter)