However, there were still several geologists who did not disperse. They were anxious to hand over the geological reports in their hands to Yu Yifeng.
"Is there anything important?" he asked casually, and then patiently read the report handed over carefully.
These geologists did find something unusual.
First point, as Mr. William said, no uranium ore has been found on the surface!
It’s not that there isn’t any, it’s just that the quality of the uranium ore discovered is very low, the reserves are very small, and it doesn’t have much mining value.
In the past few months, drones and a large number of reconnaissance robots have explored an area as large as half of Australia, but still no uranium resources of good quality have been found.
Maybe there is, but it's just buried deep underground, so people may have missed it.
"Only a few small mines have been discovered so far, all of which are in the 20,000 to 30,000 tons level..."
A geologist explained: "It is also possible that we were unlucky and happened to land in an area with less uranium mines. Similar to the earth, the distribution of uranium resources is also very unbalanced, with some places having more uranium and others
There are few places. This is normal”
After all, this planet is too big. Its radius is twice that of the Earth and its area is four times. And most of it is in ocean areas. The scientist believes that uranium resources can always be found with continued searches.
Yu Yifeng shook his head and said: "If there is really a lack of energy, we can mine it, but now that we have flammable ice that is easy to mine, we should give up the small uranium mines that are difficult to mine for the time being."
He turned to the next page and saw the report on the reserves of combustible ice below, and he suddenly felt happy.
According to experts' estimates, the combustible ice reserves of Nix are 167 times that of the Earth!
Most of them are in the Arctic and Antarctic regions and in the depths of the ocean. Well, even a dime in nine years is enough for human use, but where is the uranium mine?
All in all, with methane, energy is not a big problem.
But this geographical report is not finished yet.
The second point is that people have discovered 11 large caves similar to those in Area B11 within an area of 10,000 square kilometers!
Even similar caves have been discovered in volcanic areas thousands of kilometers away!
This is a bit strange...
The geologist saw Yu Yifeng's thinking expression and quickly explained: "These caves may be the unique geological features of the planet Nix. There is no such common distribution of caves on the earth!"
"It's very strange. This planet lacks sunlight, and the weather rarely changes. It doesn't rain very much, and only occasionally hails. How did they form... I have to admit that we haven't figured out the reason for the formation of caves yet.
"
"Moreover, the nuclear radiation in the cave is generally higher than that in the outside world, which is very strange. Could it be that all the uranium ore is hidden in the cave?"
At this point, the geologist was also very confused. There must be secrets on this planet that humans don't understand.
Yu Yifeng frowned. When he heard these words, he seemed to have thought of something bad, but he couldn't grasp this aura.
He suddenly felt sour and cold in his heart, feeling that a strange danger was happening!
This mysterious and mysterious sixth sense appears again...
Danger, yes danger!
What is it?!
His brain was running wildly, racking his brains to figure out this crisis.
...Large-scale caves have also been discovered in other places, why?
What does it represent and what are the dangers?
Could it be that there are monsters inside that are difficult for humans to contend with? It’s unlikely...
"The third point is that these caves look very weird. Some of them look like they were eroded by water flow, and some don't look like they were, as if they were eroded by some kind of acidic substance!"
The geologist was still talking. The content of his report was these three points, but due to safety regulations, they were not allowed to go in for exploration for the time being. They were really itchy.
Yu Yifeng's heart beat wildly, and the sense of crisis became more intense, like a thick black mist forming in substance!
And... the danger is getting closer!
Suddenly, an idea flashed in his mind, and he asked subconsciously: "How deep did our excavator dig?"
"Two months, about twenty meters, less than thirty meters." William explained on the side.
Yu Yifeng's body trembled suddenly, and he thought of something inexplicably...
At this time, a strange sound of cracking stones reached his ears, very subtle, very, very subtle. This sound was mixed in with the loud noises of excavators and earth drills, making it difficult to identify at all, but he was keenly aware of it.
.
He jumped up suddenly and shouted at the same time: "Go back, go back all!"
Everyone was stunned and couldn't understand what Yu Yifeng meant.
But time was too tight and there was no time to explain. Yu Yifeng moved, pushed and bumped, pushing them in like sandbags!
In just an instant, this subtle cracking sound quickly amplified, as if the stone could not support the weight and cracked.
Less than a moment later, everyone heard a loud "boom".
The whole ground collapsed!
The collapsed ground expanded rapidly, and in less than half a minute, a huge cavity of more than five kilometers was created!
The spaceships, houses, robots, ores, etc. within the hollow range fell directly downwards at this moment, falling straight down in a manner consistent with gravity acceleration...
At this moment, Yu Yifeng felt that his whole body was suddenly lifted into the air, and the solid ground was no longer beneath his feet. Fortunately, almost everyone had been thrown into the spacecraft by him.
"ah!"
He yelled, grabbed Zhao Yao who fell outside with his left hand, grabbed the threshold of the spacecraft with the other hand, and hung him outside like a flying man!
For a moment, all the staff were frightened by this inexplicable disaster and were unable to react.
Aren't they on the ground? Why are they falling?
Everyone's bodies were in a state of free fall. Some people were leaning against the wall, and some were stumbling and falling in mid-air. Because there was nowhere to borrow strength, no one could move for a while!
They have no idea what's going on!
Yu Yifeng's body was filled with adrenaline, and veins popped out on his forehead. He shouted loudly in the headphones: "Pilot! Reverse jet, start the engine and reverse jet!"
No one knows how deep it is below, maybe only a dozen meters, maybe a few hundred meters, thousands of meters, tens of thousands of meters?!
Even if it is only a dozen meters high, once it falls to the ground, it will definitely cause heavy casualties!
There are collapsed rocks, soil, sand and stones everywhere around us, all of which are in free fall in the air. Due to the friction of the air, these things have a slight speed difference when they fall, and they also collide with each other.
In just a moment, Yu Yifeng felt like his whole body had been hit several times by large and small rocks.
Fortunately... because the relative speed was not high, the collision was not serious.
"It's about to land!" Yu Yifeng's pupils dilated, adrenaline surged throughout his body, and his heart seemed to jump out of his throat. Sometimes manpower was exhausted, and even if he was a super human wearing power armor, he could not save such a landslide.
.
He heard another "boom", and to his surprise, the ground below was collapsed by something falling from above!
Revealing...an even bigger layer below!
This collision directly knocked Yu Yifeng, who was hanging outside, to pieces. He felt as if his whole bones were shattered. The people inside were also shaken and staggered, and some even rolled on the ground.
, and then hit something.
The power armor he wore finally saved Yu Yifeng's life. The mechanical exoskeleton faithfully carried out his orders, with a mechanical hand firmly grasping the threshold of the spacecraft and refusing to let go.
Fortunately, this flight base was not the first one to hit the ground. It was only slightly blocked and the impact was bearable. After collapsing this layer, a lot of things took the spacecraft with it to the deeper layer.