Chapter 1665: Great Rift Valley

The first thousand eight hundred and fifty-five chapters
But Zhao Zhongyao looked at the snow monster in the distance and said, ‘This guy shouldn’t run to the shore of the lake! I feel that it can only survive in the lake. ’
But Feifei and Tiantian are still a little worried, after all, this monster seems to be getting bigger and bigger. And the speed of running towards them is getting faster and faster.
At this time, Feifei looked at Zhao Zhongyao and said, ‘Dad, are we a bit dangerous in this place? I think we should go back to the spacecraft! Anyway, isn’t the spacecraft far away from us? ’
Zhao Zhongyao said, ‘It doesn’t matter! Anyway, the spaceship is not very far away from us. If we feel dangerous, it will not be too late to run back into the spaceship. ’
It’s just that Tian Tian is a little worried, she looked at Zhao Zhongyao again and said, ‘Dad, are you sure this monster will not threaten our safety. ’
Zhao Zhongyao smiled and said, ‘Of course, I dare say that it cannot threaten our safety. ’
In fact, Zhao Zhongyao has now guessed what this monster is, but he has not told the two children the truth.
Feifei and Tiantian are still worried about whether this monster will run to the shore to attack them! But Zhao Zhongyao just stood boldly on the shore, waiting for the monster to come to them.
Just when Zhao Zhongyao and Feifei were talking like this, this big snow monster ran to a place only tens of meters away from them.
But when the big snow monster ran to a place only tens of meters away from them, the big snow monster suddenly became smaller again. And it disappeared very quickly.
This result made Feifei and Tiantian stare in surprise.
Originally, when Feifei and Tiantian saw the big snow monster running from the lake to the shore, and pounced on the three of them. The two of them were very scared, thinking that this big snow monster would pounce on the shore to bite them.
But what made Feifei and Tiantian never thought was that when this big snow monster ran to the shore, it did not pounce on the shore, but disappeared quickly. This is really weird.
‘Dad, what’s going on, that big snow monster! Feifei looked very puzzled at the place where the snow monster disappeared in the lake. He was very puzzled.
Tian Tian also looked at his dad in confusion and asked, ‘dad, what is going on here, the big snow monster just now is obviously going to pounce on the shore! Why did it suddenly disappear again. ’
At this moment, Zhao Zhongyao looked at the two children and said, ‘You two go to the lake and have a look, what is the big snow monster we saw just now! ’
After hearing what Zhao Zhongyao said, Feifei and Tiantian glanced at each other. Then we walked towards the lake together. The two of them quickly reached the place where the big snow monster disappeared just now.
When Feifei and Tiantian reached the place where the big snow monster disappeared, they both saw that the so-called big snow monster turned out to be just a pile of ice and snow. Not a real monster at all.
'what! It's not a monster! Feifei feels very strange.
'Yes! This thing is not a monster, just some ice and snow. How can these ice and snow become monsters! Looking at the pile of ice and snow in front of her every day, she was also very puzzled.
At this moment, Zhao Zhongyao also came to the two children.
Feifei quickly looked at Zhao Zhongyao and asked, ‘Dad, it turns out that the monster just now was some ice and snow! This is strange, how did these ice and snow become monsters. ’
Tian Tian also looked at Zhao Zhongyao in perplexity and asked, ‘Dad, you quickly explain to us how these ice and snow things can become monsters. ’
After hearing the words of the two children, Zhao Zhongyao thought for a while and said, ‘If I guess right, this lake must be connected to some underground river. The phenomenon we saw just now is the eruption of underground rivers. ’
‘What, the dark river is gushing. When Feifei and Tiantian heard what Zhao Zhongyao said, they both felt very puzzled. They didn't understand what Zhao Zhongyao meant.
‘Yes, the snow monster we saw just now is actually because there is an underground river under this lake that is connected to underground rivers elsewhere. When some underground river water suddenly flows into this lake, it will burst the ice outside. In this way, an ice monster will be formed. Zhao Zhongyao looked at Feifei and Tiantian again and said.
Feifei and Tiantian heard what his father said, as if they understood what was going on.
Feifei said, ‘It turns out that the underground river is at work! ’
He said every day, ‘Yes! We thought it was a monster! It turns out that the underground river is making waves here. ’
‘Dad, are we still looking for amethyst gems here! Since there are no monsters here, is there no amethyst gem? Feifei looked at Zhao Zhongyao again and said.
After hearing what Feifei said, Zhao Zhongyao thought for a while and said, ‘Yes, there are no monsters in this place. Then there can be no amethyst gems. We must go to another place to see. ’
‘Then where should we go? Feifei looked at Zhao Zhongyao and asked again.
Zhao Zhongyao looked around and said, ‘This place is full of canyons and collisions. We can't find amethyst gems in this impact crater, so let's go and see in other impact craters. ’
‘Okay, let’s go and see in other impact craters. Feifei looked at Zhao Zhongyao and said.
At this time every day, he also said, ‘Okay, let’s take a spaceship and go to see other impact craters. ’
But at this moment, Zhao Zhongyao saw that there was a gap on the edge of this impact crater. This gap is huge, and I don’t know what lies outside the gap.
So, Zhao Zhongyao looked at this gap not far away and said, ‘That’s right, we don’t need to take a spaceship. Let's take a look outside the gap! ’
Feifei and Tiantian heard what Dad said and said, ‘Okay then! Let's go outside the gap to see if there is also a huge impact crater. ’
So, Zhao Zhongyao, Feifei and Tiantian walked towards the gap on the edge of the impact crater together.
Soon, they came to this gap.
When they reached this gap, they saw that it was a terrain like a small canyon. And there are some twists and turns, and I don't know where the end of this small canyon is.
‘Dad, where does this small canyon lead? Feifei looked at the small canyon in front of him curiously and asked.
‘I don’t know either, I think we might as well go inside and see. See where this gorge leads. "Zhao Zhongyao looked at the gorge in front of him and said.
After hearing what Zhao Zhongyao said, Feifei and Tiantian both nodded. The two of them are also willing to visit this small canyon.
‘Okay, let’s go inside and see. Feifei said so too.
So, Zhao Zhongyao led the two children to this small valley together.
They walked straight along this small canyon. I didn't feel anything special at first.
But the gorge became bigger and bigger as they walked. Later, their eyes suddenly widened.
The original small canyon suddenly became a huge canyon. This Grand Canyon is really huge. Not only can you not see your head at a glance, but the sides are also very wide, and you can't see the sides.
‘Dad, this--what is this place? Feifei looked at the Grand Canyon in front of her, but she was also a little puzzled.
Tian Tian also looked at Zhao Zhongyao very puzzled and asked, ‘Dad, what is this place? Why does it look weird! ’
At this time, Zhao Zhongyao said, ‘this is not an impact crater, this is a grand canyon. ’
After hearing what Zhao Zhongyao said, Feifei smiled and said, ‘Dad, are we in the Great Rift Valley! I don’t know whether the Great Rift Valley of East Africa on our planet has this great canyon. ’
After hearing Feifei’s words, Zhao Zhongyao smiled and said, ‘This Grand Canyon is of course bigger than the Great Rift Valley of East Africa on our planet. ’
‘Dad, do you know about the Great Rift Valley! Tell us about this knowledge too! Suddenly, Feifei became interested in the Great Rift Valley.
'Yes! Dad, tell us something about the Great Rift Valley! "Every day he looked at Zhao Zhongyao and said.
‘Okay, let me tell you something about the Great Rift Valley! "Zhao Zhongyao looked at the two children again and said.
The Great Rift Valley of East Africa is the largest fracture zone on the world's continent, and it looks like a huge scar from satellite photos. The Great Rift Valley of East Africa is known as the "earth scar". This rift zone is located in eastern Africa, starting from the lower valley of the Zambezi River in the south, passing through the Shire Valley to the north of Lake Malawi (Nyassa Lake) in the north, and is divided into two branches.
The entire shape of the Great Rift Valley can be drawn as an irregular triangle. The valley is tens to 200 kilometers wide and 1,000 to 2,000 meters deep. The east branch of the rift extends from the mouth of the Shire River to the south through Lake Malawi. The north runs through the middle of the East African plateau and the middle of the Ethiopian plateau, reaching the northern end of the Red Sea, with a total length of about 5,800 kilometers.
From the northwest end of Lake Malawi in the south, the western branch passes through Lake Tanganyika, Lake Kivu, Lake Mobutu, etc., to the White Nile Valley in Sudan, with a total length of over 1,700 kilometers, which is the longest discontinuous valley in the world , Named by the explorer John Walter Gugli.
The detailed geographical location of the Great Rift Valley is described by three points in a triangle. The southern point is at the mouth of Mozambique, the northwest point is as far as the Jordan River in Sudan, and the northern point is accessible to the Dead Sea. There are quite a few lakes and volcanoes in the middle. This Great Rift Valley is a natural storage reservoir that concentrates most of Africa's lakes, with a total of more than 30.
According to the survey and research of geologists, because it is located at the junction of the African plate and the Indian Ocean plate, about 30 million years ago, the tension and extension of the two plates caused the continental drift movement that separated from the Arabian ancient land to form this fissure. Valley.
At that time, the crust in this area was in a period of great movement, and the entire area was uplifted. The mantle material under the crust rose and diverged, resulting in huge tension. It was under the action of this tension that the crust was broken, and thus Form a rift valley.
Due to the continuous uplifting movement, the fracture of the earth's crust is constantly produced, and the underground lava is constantly gushing out, gradually forming a tall lava plateau. The volcanoes on the plateau have become numerous peaks, and the rifted subsidence zone has become the bottom of the Great Rift Valley, with a total length of 6,400 kilometers.
The subsidence of the Great Rift Valley in East Africa began in the Oligocene, the main fault movement occurred in the Miocene, and the period of large dislocation lasted from the Pliocene to the Quaternary. The Red Sea formed in the northern section, which separated the Arabian Peninsula from the African continent; the island of Madagascar was also separated from the African continent due to the expansion of several active rift valleys.
At the bottom of the rift valley is an open field, more than 20 long and narrow lakes, like a string of crystal sapphires, scattered in the valley. Lake Naivasha and Lake Nakuru in the central part are habitats for birds and other animals. They are also important tourist areas and wildlife sanctuaries in Ken. Among them, Lake Naivasha is 1,900 meters above sea level, which is the highest lake in the rift valley. . The southern part of Lake Magadi produces trona, which is an important mineral resource in Kenya. Lake Turkana in the north is one of the birthplaces of mankind, where ancient human skull fossils were discovered 2.6 million years ago.
The Great Rift Valley is also a giant natural reservoir. Most of the lakes in Africa are concentrated here, there are about 30 large and small, such as Lake Abe, Lake Salad, Lake Turkana, Lake Magadi, ( Located on the plateau between the east and west rift zones) Lake Victoria and Lake Keoga are lakes formed by partial depression of the land. The lakes are relatively shallow. The former is the largest lake in Africa.
Lake Malawi (the length is equivalent to 7 times its maximum width and the deepest is 706 meters, second only to Lake Baikal in Russia, and the fourth deepest lake in the world), Lake Tanganyika (the length is equivalent to 10.3 times its maximum width) , The deepest point is 1470 meters, which is the first deep lake in Africa and the second deepest lake in the world) and other Turkana.
The northern part of Kenya is an endless desert. Due to aridity and sparsely populated areas, there are hardly any crops growing here, but some thorns and bushes are sparsely distributed. The local residents are mainly nomadic or semi-nomadic pastoralists.
However, when you fly over this land by plane, looking down from the window, there seems to be a huge and beautiful crystal bead jumping in the middle of nowhere. This is the famous inland lake in Africa-Lake Turkana, and The name is Jasper Lake. Lake Turkana was once called "Lake Ludol". Ludolf was the name of the Prince of Austria. In 1975, it was changed to the name of the Turkana tribe of the Maasai tribe on the west bank of the lake.
Lake Turkana is also one of many lakes in the East African Rift Valley. The lake area is in a strip shape, extending 256 kilometers from north to south, reaching the border of Ethiopia in the north. It is 50 to 60 kilometers wide from east to west and covers an area of ​​more than 6,400 square kilometers. Hunan is 375 meters above sea level. It is not only the largest lake in Kenya, but also One of the largest saltwater lakes in the world.
Because Lake Turkana is in arid area, the water source is insufficient, the erosion effect around the lake basin is relatively weak, so it still stays in an isolated state to this day. Because the lake water cannot flow out, a huge alkaline lake is formed. The lake water has an obvious slippery feeling and shows strong decontamination ability.
In fact, Lake Turkana used to be connected to the Nile in that long time. It was only because of the later crustal movement that they gradually lost contact with each other. Today's Lake Turkana, its southern part is a deep water area, the deepest point can reach about 120 meters.
In the center of the lake, there are three small islands juxtaposed in the south, north and middle, and the islands are covered with emerald green grass. Turkana Lake has green water and cool water. It is very interesting that, except for the high salinity of the southern lake, which can extract all kinds of salt, the lake water in other shallow water areas is only slightly salty and can still be consumed in the mouth.
In particular, the lake area is extremely rich in aquatic products. There are many types of fish, and the size of the fish is relatively large. Some fish are about several meters long and weigh as much as hundreds of catties. In particular, the lake is rich in carp. There are many carps and they are relatively large. When angry, they can overturn wooden boats in the lake.
Because Lake Turkana was formed by a fault, there are many volcanoes around the lake area. These long extinct "dead volcanoes" stand proudly on the East African plateau like giant cones, which are particularly spectacular and eye-catching. As these volcanoes erupted many times in the past, volcanic weathering has formed a thick layer of dark brown soil. The soil is very fertile, and the climate is humid and hot, which is very suitable for the growth of various plants.
The volcanic mountainside and lakeside area is full of dense trees and pastures, green bananas, plantain bushes, fresh ivy trusses, huge mango trees, coconut trees, palm trees, etc., everywhere in the mountains.
There are groups of antelopes, zebras, wild deer and other animals living in the trees and grass. During the day, there was silence around the lake area; at dusk, antelopes burrowed out of the grass one after another, zebras chased and neighed to the lakeside to drink water, and the lakeside suddenly became lively.
Lake Turkana was inhabited by humans a long time ago and is one of the birthplaces of mankind. Since 1967, archaeologists have continuously discovered a large number of ancient human fossils, paleolithic and mammal fossils in the Cooper Fowler area on the east bank of the lake area, among which the stone tools are even more than 2 million years ago.
The Turkana lakeside area has always been the active area of ​​the famous nomadic people in Africa, the Maasai people. The residents of this ethnic group are brave and tenacious, treat people honestly and honestly, and still maintain many fascinating traditional customs and habits.
Zhao Zhongyao told the two children about the Great Rift Valley. After Feifei and Tiantian listened, they felt that they had gained a lot of knowledge of geography.
Feifei looked at Zhao Zhongyao curiously and said, ‘Dad, this means that the Great Rift Valley is a huge belt of life! There are so many lives in the Great Rift Valley. ’
Hearing Feifei’s words every day, I also curiously said, ‘The Great Rift Valley of East Africa not only has many magical lives, but also many magical primitive tribes. It is really a good place for tourism and exploration. ’
At this time, Feifei looked at the Grand Canyon in front of her and said, ‘Dad, I don’t know if there is life in the Grand Canyon of Tianwei. ’
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