my mountain and river space

Chapter 392 Opening battle, super volcano!five

Next, the camera turns to the ground, waterfalls, primeval forests, groups of wild animals, and steaming hot springs, and there are more than one, too many to count!

"When you see this, you may think that we are going to introduce its beauty, mineral resources and various animals. You guessed it wrong, our program is not an animal world, we are a program about exploring geography. So what are we going to introduce? That's right. , That's it! Hot spring!" Sheng Chun said, pointing at the hot spring on the screen with a mysterious face.

"Yellowstone National Park covers an area of ​​about 898317 hectares, mainly located in the state of Sam, Wyo, and partly located in Montana and Idaho. Yellowstone Park is divided into five areas: the Mammoth Hot Springs area in the northwest is dominated by limestone steps, Therefore, it is also called the hot step area; the northeast is the Roosevelt area, which still retains the old western landscape; the middle is the canyon area, where you can watch the Yellowstone Grand Canyon and waterfalls; the southeast is the Yellowstone Lake area, mainly the scenery of lakes and mountains; the west and southwest is the geyser area, spread all over Geysers, hot springs, steam pools, hot pools, mud and fumaroles. There is a museum of historical relics in the park. And this time we will focus on how so many hot springs came to be!” The face became a little serious.

"It has one of the largest forests in the world. The forests in the park account for about 90% of the total forest area of ​​the country, and the water surface accounts for about 10%. There are more than 10 hot springs and more than 000 geysers. There are more than 300 waterfalls There are Huangshi Lake, Huangshi River, canyons, waterfalls and hot springs in the park, and it is a famous tourist attraction. There are also a lot of wild animals, more than 290 species are known!", Said here, the spring passed by Lots of pictures.

"The next thing I want to talk about is the potential danger of this place. The park is one of the largest craters in the world! According to scientists, as long as the energy accumulated by this volcano erupts, the entire earth will be covered under volcanic ash for at least two years! This is What a concept, if we don’t see the sun for a month in summer, then congratulations, you need to wear a coat to go through this summer.”

"Damn it, wouldn't such a big volcano really erupt?" The fat man was taken aback, and looked at the TV without blinking.

Feng Yi smiled, and said slowly: "It's not so mysterious, it's been so many years, and it's still not the same." Before his words fell, the host's words directly slapped his face.

"Based on the records of the last 30 years, scientists have found that the temperature of the lakes in the craters in Yellowstone Park has risen to varying degrees, and there are still many lakes that are evaporating, and small lakes that have dried up have also been discovered." Speaking of here , The host pulled out several pictures again, which clearly showed the corpses of dead creatures in the lake, as well as birds.

"These dead birds experts believe that foraging animals were suffocated by carbon dioxide, or poisoned by toxic gases such as hydrogen sulfide. Because experts found a large amount of these gases in this area. And this is also considered to be A sign of the imminent resurrection of an extinct volcano.”

A few people were a little stunned when they heard that this extinct volcano was resurrected?Things seem to be a little out of order.

"And if this volcano erupts again, how powerful is it? Let's give an example, look!" At this time, a picture appeared again, a huge volcano erupted, and the volcanic ash ejected covered the sky, like billowing black The cloud comes from the sky, and the end of the world is just like this!
"This is the Krakatoa volcano, located in the Sunda Strait of Indonesia, near Lakata Island. In 1883, a major eruption released 21 cubic kilometers of volcanic ash, and the violent sound of the eruption could be heard as far away as Mauritius Island. It was one of the largest volcanic eruptions in human history. The eruption and the subsequent tsunami destroyed hundreds of villages and cities, and more than 3 people died. Two-thirds of the original Krakatoa volcano was erupted Disappeared, and new volcanic activity has produced a growing volcanic island since 1927." Speaking of this, the host began to show the picture again.

"Krakatoa sprayed almost 21 cubic kilometers of rock fragments into the air, and a large amount of ash fell on an area as wide as 80 square kilometers."

"The mass of pumice near the volcano was so thick that it was difficult for ships to pass. The volcanic ash in the air enveloped the surrounding area in darkness for two and a half days. The fine dust drifted around the earth several times, causing spectacular scenes throughout the following year. Red-orange sunsets."

"And because of the eruption of the Krakatau volcano, scientists have recorded that the global temperature has dropped, and the economic losses caused are difficult to estimate. Well, let's go back to the super volcano in Yellowstone Park."

Fatty and Yuhu were stunned when they heard it. Compared with such a super-erupting volcano, is the volcano in Yellowstone National Park more powerful?

"The internal geological structure of Yellowstone Park is complex. Strong volcanic activities have occurred. The ground is covered with lava in large areas. The crust is still unstable. Hot springs and hot springs can be seen everywhere in the park.

The whole volcano is centered on the west thumb on the west side of Yellowstone Lake, 15 miles east to west, and 50 miles south to north, forming a huge crater.

Under the crater, there is a magma chamber with a diameter of about 70 kilometers and a thickness of about 10 kilometers. This huge magma chamber is only 8 kilometers away from the ground, and it is still expanding. "

After the host finished speaking, he played a few more photos. This is a 3D cross-sectional view showing the terrifying magma activities below the park.

"Earthquakes and volcanic eruptions have occurred many times in the Yellowstone area since 210 million years ago. Large-scale volcanic eruptions have occurred four times. Huge volcanic eruptions, especially the penultimate volcanic eruption, erupted from the crater The material covered an area of ​​nearly 9000 square kilometers here, and the volcanic ash even covered half of the earth!"

Hearing this, the fat man who was drinking tea spit out a mouthful of tea, and stared dumbfounded at the TV host broadcasting in a low tone.

"I said you can't pay attention to the fat man." Feng Yi was sprayed on the clothes by the fat man and glared at him.

"Hehe, the volcano erupted, the fat man's mouth erupted!" Lai Asan said with a smile.

"I was frightened, half of the earth, is there any living thing that can survive?" The fat man couldn't believe it.

"If you only think about half of the earth, then there's still half of it!" Feng Yi smiled and pointed to the TV.

"That's right, you said that if there is an earthquake in this place? Hey, just thinking about it will scare me to death!" Fatty felt uneasy when he thought of the scene of a huge volcanic eruption. If the earth is really covered by volcanic ash Don't let people live!
(End of this chapter)