From the Super Ring to the Great Artery, I kept Academician Wang for a meal. After the meal, Academician Wang said goodbye and left. However, as soon as he left, Du Ke had not lie at home for a while, another academician came to visit.

"Academician Du, I'm disturbing you."

"I haven't disturbed anything. I haven't started working officially during this period. Academician Waiting for Invitation." Du Ke invited Academician Waiting for Invitation to Du's Mansion.

Academician Hou is 66 years old and currently serves as the director of the Institute of Geology. He is a Da Ben, a researcher in the fields of mainland mineralization and subsea hot water mineralization, and has proposed a systematic theory on the tectonics of the mainland China plate.

"This time I came to visit Academician Du, I wanted to have a deep talk with Academician Du on the scientific call of 'marching towards the depths of the earth' to see if I could be selected for the China Forward Plan." Academician Hou said.

The march to the deep earth is one of the national plans during the 13th Five-Year Plan. The Chinese Academy of Geological Sciences undertakes the exploration of scientific drilling technology in mainland China. The main result is the Songke Well 2--Songliao Basin-Continental Scientific Drilling Project.

The drilling depth is 7018 meters, which is the deepest continental scientific drilling implemented by Asian countries. The entire project overcomes major technical problems such as ultra-high temperature drilling and large-diameter centering, promotes independent innovation of core technologies, and achieves many breakthroughs in mainland scientific drilling technology. The 4.15 million sets of 24TB deep experimental data obtained by the project are all valuable information to open up the mystery of the deep earth.

Going up to the nine heavens to embrace the moon and catching turtles in the five oceans is always a dream for mankind to explore nature.

The spacecraft has been traveling endlessly in space, and the submersibles have also broken through the extreme depth of the ocean floor again and again. However, compared to going to the sky and the sea, humans' journey to the ground is difficult due to the barrier of crust rocks.

The deepest holes that humans have drilled at present are the Kola ultra-deep drilling of the former Soviet Union, with a depth of 12,263 meters, and the other is the oil and gas well of Z44-Chavyo, with a depth of 12,376 meters.

The deepest Mariana Trench on the earth is about 11,040 meters, which means that humans only drill and drill, and the depth of the Mariana Trench is 12 kilometers.

The earth's radius reaches 6371 kilometers, and 12 kilometers is a fraction of the earth's radius.

If the earth is compared to eggs, humans will not even get through the eggshell.

Below the surface of the earth is the crust, and the thickness of the earth's crust fluctuates between 5 kilometers and 70 kilometers, with an average of about 33 kilometers. Below the crust is the mantle, and the inside of the mantle is the core. So far, humans have only seen the mantle layer with their own eyes, or the upper mantle in the mantle layer, that is, the lithosphere. As for what is below the lithosphere, we can only infer through analysis.

Therefore, it is still hard to say whether the inside of the earth is as scientists imagined, full of silicate substances and iron-nickel substances.

"After the end of Songke Well 2, our Geological Institute did not have any more drilling tasks. However, I recently came into contact with the Great Wall plan of the Border. I accidentally found that we had high-tech Tuxing Sundun Machinery and Shiji Drill Bit, and underground drilling was easy. So after I went back, I held a seminar in the institute. After unanimous recognition from our geological experts, I decided to start the "Songke Four Wells" project."

The Songke Drilling Project is a scientific research project that uses scientific drilling in the Songliao Basin. It was first used to study major geological events on the surface of the Cretaceous Earth. This was well No. 1 at that time.

The second well of Songke was drilled to study deep shale gas and geothermal energy, and also to study more major geological events in the Cretaceous period.

Then the Songke Mitsui started drilling, thoroughly and systematically perfected all major geological events in the Cretaceous period, and obtained a continuous and complete stratigraphic record of a giant oil- and gas-containing basin.

So far, the Songke project was completed.

However, after learning about the new technology, Academician Hou and other geological experts could not bear it and wanted to restart the Songke Project and drill the Songke Four Well: "This time we plan to drill more than 10,000 meters through the Songke Four Well to directly drill more than 10,000 meters deep to find the geological information of the entire Mesozoic era. If the technology allows, we even want to drill 15,000 meters deep again on the basis of the Songke Four Well to explore Paleozoic geological information."

Academician Hou enthusiastically introduced the Songke Four Wells Project, trying to mobilize Du Ke's interest.

The earth is constantly changing, divided into five geological eras: Ancient, Proterozoic, Paleozoic, Mesozoic and Cenozoic. Among them, the Cenozoic is divided into the Tertiary and Quaternary; the Mesozoic is divided into the Permian, Jurassic and Cretaceous.

The hallmarks of the Cenozoic generation are mammals and humans.

The hallmark creature of the Mesozoic era is dinosaurs.

Studying geology does not require deep drilling. After all, earthquakes, volcanic eruptions and other plate sports events have exposed geological layers from different eras. For example, humans have discovered fish fossils in the Himalayas.

Deep drilling can study geology, but more about studying information inside the earth.

It has extremely important value for the formation and distribution of mineral resources, the movement of the earth's plates, etc.

After listening to the blueprint outlined by Academician Hou, Du Ke responded: "Theoretically, I have no objection to the plan to join the China Forward. We humans have indeed had too little research on the inside of the earth, but whether we can be selected is not something I can guarantee."

"It doesn't matter, it doesn't matter. As long as Academician Du, you are willing to recommend it, I believe that Songke Four Wells will definitely be selected into the China Forward Plan!" Academician Hou was full of confidence.

"Can."

The academician also stayed at home for dinner.

Waiting for the academician to leave, Du Ke was still thinking about the issue of Songke Four Wells. He supported Songke Four Wells to drill, not because of curiosity, curiosity about what the Earth was like in ancient times. Instead, considering that humans have too little understanding of the planet and are destined to cross space in the future and find new planet colonization, so even the earth cannot understand, how to figure out the new planet.

If you don’t have a thorough analysis of the earth, how can you judge whether the new planet you are looking for is really suitable for human habitation through a small amount of astronomical information?

Therefore, there is no need to ask too much. At least we need to clarify the geological distribution of the earth and the various signals emitted by the internal structure of the earth, so as to compare the signals sent by other planets to obtain the basic information of these planets.

In this way, we will not treat a pure iron ball as a rock planet or a pure water ball as a green planet.

After all, these planets are too far away from humans, and an interstellar trip may take hundreds of years. Because of data derivation errors, the planet's livability possibility is misjudged, and the time loss caused is huge.

“All walks of life are developing.”

"The discovery of a technology often drives the common development of many industries."

"The black technologies I discovered in the fantasy world are constantly brewing greater value... Just like a butterfly flapping her wings on the Amazon Plain, Texas has set off a storm... All these technological changes are caused by my butterfly flapping her wings... No, I am not a butterfly, I am an eagle, a giant dragon!" Du Ke smiled proudly.

I feel that the future is bright, and the interstellar era seems not far away.
Chapter completed!