The next day, it was slightly brighter

Everyone couldn't wait to get up, because everyone was going to the hot spring today, which was a super rare treatment.

Hot springs are known to everyone, in fact, it is a kind of spring water with a temperature exceeding the normal temperature, and it is said that hot springs contain mineral elements, which have special curative effects on some diseases.

But how are hot springs formed?

According to scientists, there are two main reasons for the formation of hot springs.

One is formed by the magmatism inside the earth's crust, or accompanied by volcanic eruptions, the extinct volcanic terrain area that has been volcanically active, the surface uplifted by the movement of the crustal plates, and the uncooled magma underneath the ground, will continue to release a large amount of heat energy Due to the heat concentration of such heat sources, as long as there are porous water-bearing rock formations nearby, it will not only be heated into high-temperature hot water, but also most of them will boil into steam, mostly sulfate springs.

The second is formed by the infiltration cycle of surface water. That is to say, when the rainwater falls to the surface and penetrates downward, the aquifer deep into the earth's crust forms groundwater, and the groundwater is heated by the geothermal heat below to become hot water, and most of the deep hot water contains gas, which is mainly carbon dioxide, when the temperature of the hot water rises, if there is a dense and impermeable rock layer blocking the way, the pressure will be higher and higher, so that the hot water and steam are in a high-pressure state, and a crack will surge up.

As the hot water rises, the closer it gets to the surface, the pressure gradually decreases, and the gas contained in it gradually expands due to the gradual decrease in pressure, reducing the density of the hot water, and these expanded vapors are more conducive to the rise of hot water. The rising hot water and the cold water that is heated later in the sinking are repeatedly circulated to produce convection due to the pressure (hydrostatic pressure difference) generated by the different densities, and in the case of low resistance of the open fractures, the hot water can rise and gush out of the surface along the cracks, and the hot water can continue to rise until it flows out of the ground to form a hot spring.

Under the combination of high mountains and deep valleys, the ground water at the bottom of the valley may be higher than the mountains, and the middle and groundwater level is low, so the bottom of the deep valley may be the place with the largest hydrostatic pressure difference, and the hot water upwelling should also be the most likely to gush out from the valley bottom, and the hot springs mostly occur on the riverbed in the valley.

"Everyone is holding on for a while, the hot spring is about to arrive!!"

After walking on the rugged mountain road for about an hour, seeing that everyone was tired and out of breath, the mountain master hurriedly encouraged everyone.

"Is it really coming?" Hearing that the hot spring was almost there, Professor Wu was the happiest.

"Well, do you see that mountain? It's at the foot of the mountain over there, only a few hundred meters away from here!!" said the mountain master who ran the mountain smiled and pointed to the cliff not far away.

Hearing that it was about to arrive, everyone seemed to be stimulant, motivated, and the already tired footsteps became brisk again.

Thinking about the comfort of soaking in the hot springs, it was really beautiful, and everyone took firm steps towards the hot springs.

"It's here when you arrive, Xiaofeng, you go in with me first!!" When everyone came to the mouth of the valley and put down their luggage, Master Ran did not lead everyone into the valley, but called Zhang Feng to go in first to explore the situation.

The others sat at the mouth of the valley resting and guarding, and the patrol members were not idle, and began to clear the flat land in front of the valley, preparing to set up camp later, because today, everyone had planned to rest here.

The green grass is green, the wild flowers are fragrant, and there are small bees and colorful butterflies shuttling among the flowers, seeing such a beautiful scene in the valley, Zhang Feng was stunned, his mouth opened wide, and he didn't react for a long time.

"Haha, how is it, isn't it a lot warmer when you come to the valley!!" Seeing Zhang Feng's stunned appearance, Lord Ran couldn't help laughing.

"Hmm!!" Zhang Feng was still in shock, he didn't expect that there would be such a magical place in the depths of the mountains in winter.

Zhang Feng felt it carefully and found that it was indeed very warm here, the temperature in the air should reach seventeen or eighteen degrees, and the closer to the hot springs, the higher the temperature and the richer the water vapor.

"Xiao Feng, let's go separately and see if there is any danger in this valley!" After coming to the hot spring, the mountain master commanded Zhang Feng.

Zhang Feng nodded, and then searched along the side of the hot spring with the running mountain master.

In fact, after the scanning function of the system, Zhang Feng had already figured out the situation in the valley.

This valley is like a long wine bottle, with a small and narrow exit on the outside, only about three meters, and a relatively spacious inside, about fifty meters long, about twenty meters at the widest point, and twelve or thirteen meters at the narrowest point.

In the middle of the valley is a hot spring, and the water above the hot spring is so thick that you can't see the water in it.

However, the size of the hot spring can be seen approximately, and it is oval-shaped and 5 to 6 meters in diameter.

After the system scanning, there are some small animals inside, and the valley is very safe, and what surprised Zhang Feng the most is that there are many wild vegetables, wild celery, side ear root, camellia, dandelion...... Wait, Zhang Feng roughly counted, there are seven or eight kinds in total.

"I'm done checking here, but there's nothing!!"

"That's good, I'm okay here!" Ranshan replied with a smile.

Then Zhang Feng and Ran Shanye converged, and then asked.

"Master Runshan, do we also have to check in this hot spring??"

"Haha, it's okay, you touch the temperature of this water, what other animals do you think there are in such water??"

Hearing the words of the running mountain master, Zhang Feng was really convinced, it was really ginger or old spicy, because judging from the results of the system's scanning, there were indeed no threatening animals in this hot spring, not even a small fish or shrimp.

"Let's go, let's go out, everyone is still waiting to take a bath!" Ran Shanye smiled and took the lead in walking out of the valley.

Seeing that Pao Shanye and Zhang Feng walked out with relaxed expressions, everyone hurriedly asked.

"Well, there's no danger in the valley, right?"

"Haha, there is no danger, if you want to take a bath, let's go quickly!!" replied with a smile.

However, before that, everyone went into the valley to see the appearance of the hot springs, and replenished all the water needed today, otherwise when everyone finished bathing, they would drink their own bath water.

"Professor Wu, hurry up and go to the hot springs, don't worry, we have already checked inside, there is no danger!!"

"Well, then you're welcome!"

Professor Wu was also very happy, and took a change of clothes to walk like a valley and start her own hot spring journey.

Thinking that they could still soak in the hot springs in this big mountain, everyone was a little excited, although they had to wait for Professor Wu to finish soaking, but everyone was still happy.

Please remember that the first domain name of this book is .. m.