All this time we had the wrong idea about the movement of tectonic plates
Source:
Even the seemingly widely known facts can be quite accurate.
As if solid was the ground beneath our feet, at the depth circulates the whole «sea» forming the liquid part of the earth's core. If you do not go into a more accurate description of the earth's crust, we can say that on top of that «sea» are the tectonic plates, which, as we know from the school course of geography, are constantly in motion. But, as I recently found out the joint group of scientists from France and all this time we might have the wrong idea about why tectonic plates move relative to each other.
How tectonic plates move
As reported , in order to better understand the processes moving tectonic plates, an international team from Grenoble University in France, and the University of Texas at Austin (USA) has developed a new, based on all available information about the structure , high-precision 3D model of the globe.
The development of these models was invited to observe a special computer algorithm for virtual 1.5 billion years. At the same time in real time it took about 9 months. The simulation results show that mankind had a misconception about the processes occurring beneath the surface of our planet.
For a very long time we thought that the external cover of the Earth «slides», above the surface of the mantle. And tectonic plates — it is a kind of plate, which are laminated each other in some parts and move apart in others. — scientists say.
Early attempts to describe the theory of plate motion suggested that this movement may be largely the result of convection currents in the liquid part of the core of the planet under pressure (called this part of manitu). Due to changes in temperature, the mantle is raised and lowered, which causes the turbulence of the flows and shifts of tectonic plates.
In this model, attempts to describe this process, inevitably encountered problems in trying to compare the strength of the resistance and friction of tectonic plates with the fluid dynamics of the mantle. Our results indicate the predominance of the force of attraction of the plates above the resistance at their base, which suggests that it is not the mantle drives the movement of plates, but on the contrary, the tectonic plates run mantle flow — the researchers explain in their report. The new obtained models assume that the movement of tectonic plates creates currents in the mantle. From 20 to 40% of the surface of the plates found connected with the deep flows of the mantle. Movement remaining 80-60% is due mainly to the surface resistance of the mantle.
the shifting of the tectonic plates many millennia, the location of the continents can be about such
The New data that we regularly see on our planet — from earthquakes and volcanoes to the formation of the magnetosphere that protects us from space radiation exposure. What do you think about the new assumptions? tell us about it in our
In addition, if a new model will be really accurate (now scientists double-check the data), it may be that the movement of tectonic plates (and with them, the continents), calculated previously, can be erroneous. And, based on the new information, you will better understand .
Recommended
Can genes create the perfect diet for you?
Diet on genotype can be a way out for many, but it still has a lot of questions Don't know what to do to lose weight? DNA tests promise to help you with this. They will be able to develop the most individual diet, because for this they will use the m...
How many extraterrestrial civilizations can exist nearby?
If aliens exist, why don't we "hear" them? In the 12th episode of Cosmos, which aired on December 14, 1980, co-author and host Carl Sagan introduced viewers to the same equation of astronomer Frank Drake. Using it, he calculated the potential number ...
Why does the most poisonous plant in the world cause severe pain?
The pain caused to humans by the Gimpi-gympie plant can drive him crazy Many people consider Australia a very dangerous place full of poisonous creatures. And this is a perfectly correct idea, because this continent literally wants to kill everyone w...
Related News
Why not to sleep with a nightlight?
fear of the dark can damage your health We have written many times how important it is to human sleep. During a night's rest, our body rejuvenates, fights with possible diseases and even . Since sleep plays in our life a huge role...
Insects and spiders rapidly disappear from the face of the Earth. Than it threatens?
the disappearance of the insects recorded worldwide. And it's very bad Even if you don't like and are afraid of spiders, to enjoy their disappearance is not worth it. According to the results of the research, the number of insects...
How well the person remembers your favorite song?
Musical tastes of society depend on the socio-economic condition of the world. In hard times people prefer a more slow and meaningful music. Probably each of us at least once in life was watching "name that tune" where the players...
Cats are popular Pets in the world Cats, along with dogs, are some of the most popular Pets in the world. According to statistics, today there are more than 600 million , and the number of their species has already exceeded 200. P...
The first humans appeared, not where previously thought
this is the area where according to the results of the study were the first people a new study says that the cradle of humanity — or the birthplace of Homo Sapiens is not where previously thought. The paper was published in ...
Men are better than women joke — proven by research
it's No secret that women love to laugh the Researchers argue that men are better than women just kidding. In the course of work, scientists have studied the results of 28 studies in which subjects were asked to rate the jokes of ...
The easy learning of new words
the Word "Wunderkind" in German translates to "beautiful child." surely, every parent wants their child to grow up well educated man. So many people are trying as early as possible and to read. However, before all this, kids need ...
What is inside the mummies of ancient Egyptian cats?
looks like most of the mummies of cats recently we talked about the fact that in Egypt was made the largest in the past century, the archaeological discovery. The fact that the local archaeologists were able to find that were not ...
What determines the color of bird eggs?
Color of bird eggs depending on ambient temperature According to the International ornithologists ' Union, by March 2019, scientists know more than 10 738 species of birds. They live in virtually , and even within the hot Sahara d...
The ozone hole shrank to record-low numbers
Ozone layer As the portal , the ozone hole over Antarctica, where harmful ultraviolet rays of our star burst through the stratosphere, was first reduced to the smallest dimensions, was 1985. Why so happened and how it can affect E...
Quantum processes influence consciousness
Can quantum processes to exert influence on the human consciousness? the Origin of consciousness has always been a mystery to scientists and philosophers, each trying to find a logical solution to this eternal question. Although s...
Ancient kangaroos once filled the Land
Prehistoric kangaroo was more like a three-meter pandas did you Know that the closest living ice age is not a modern kangaroo and Panda? Although these prehistoric animals lived in Australia, like their counterparts from the XXI c...
Evidence was found that monkeys are able to eat rats
Macaque appeared about 5.1 million years ago. What do you know about one of the most famous types of monkeys — monkeys? Perhaps some of you remember that they live in the tropical forests of Asia, mostly prefer vegetarian food and...
Social status can be determined in just seven words
the Recruiter is the impression of the applicant within the first few seconds of communication Researchers believe that the social status of a person can determine in just seven words. Moreover, according to a study published in t...
#video | Mouse learned how to drive small cars
Tiny car for rats was made from plastic packaging the Lab rats have a highly developed intellect and help scientists from around the world to study . For example, in many studies they are complex mazes, but this task in some cases...
White sharks gather annually in groups off the coast of Australia, but it is not clear why
White shark is considered one of the most dangerous predatory fish. we All love at least once a week to meet friends. Think sharks are also not averse to forget about hunting and once a year to see old friends. At least, this is e...
Allergy season in the towns there is less crime
In the period of exacerbation of allergies the person becomes less aggressive because of weakness the air we Breathe can affect our behavior. Recently this fact was confirmed by researchers from the us state of Colorado, which fou...
What feature unites all modest people?
Modest people are more valued in society. Surely among your relatives and friends there are people who are particularly shy. Behind them can stand years of education in prestigious universities, experience with celebrities and but...
What animals have six toes and why are they needed?
Madagascar romanoski was opened in 1780 by the French naturalist Pierre Sonner humans, like most primates, on the hand has exactly five fingers. It is believed that this design feature of our bodies has been passed down to us from...
In Egypt found 30 mummies. Why is it the biggest discovery of the last century?
Egypt has made the largest in the last 100 years of archaeological discovery. Egypt has a rich history, so there is nothing surprising in the fact that in this country very often made archaeological discoveries. For example, recen...
Comments (0)
This article has no comment, be the first!