China, located in the northern hemisphere of the Asian continent and Australia in the southern hemisphere, are separated by heavy ocean, and planes or ships may be able to reach Australia, but it is impossible to walk to Australia, but 300 million years ago, the whole world was together, and there was only one continent in the world!
<h1 class="pgc-h-arrow-right" > Pangu Continent, how exactly did it separate? </h1>
Pangea, also known as "Panconcontinental" or "Supercontinent", is the phenomenon in geological history in which the world's land is connected together, which is the continental drift theory proposed by the German geologist Alfred Weigner, based on the expansion of the mid-ocean ridge discovered in the 1960s, thus deducing the continental distribution of the ancient Earth!
Pangea evolved from the gondwana continent, the earth continent has been changing, from the formation and division between the gondwana continent and the Baltic continent, Lauren continent and Siberian continent 550 million years ago, until the formation of pangea continent 300 million years ago, every hundred million years, the earth's continent will undergo division and merger, and the future earth will merge into a supercontinent!
Why do the continents of The Earth run around?
Speaking of plate drift, everyone will definitely think of the German scientist Alfred Wigner, but in fact, the "continental drift theory" was first proposed by the Dutch geographer Abraham Otlyus, who was the cartographer of the first world atlas in history, so he knew the global map!
Terra Australis Nondum Cognitaas, painted by Abraham Otlius in 1570
In 1596, Otlius discovered that on the map, the east coast of South America and the west coast of Africa seemed to be connected together, so he proposed the "continental drift theory", but the drift theory at that time was relatively naïve, only that the rotation of the earth and tidal motion may be the main cause of drift.
Since then, paleontologists have found that on two continents far away from the ocean, the paleontological fossil groups found are almost identical, and this kind of shellfish and plants can not cross such a distance and will not form subspecies, in addition to the paleoclimate and rock formations and geological formation evidence, in 1915, the German meteorologist Wegener in "The Origin of Continents and Oceans" expounded this view!
Wegener and his colleagues believed that the shapes of the world's continents could all be stitched together (roughly spliced), and they called the continent Pangaea, and that the ocean of Panthalassa surrounded the continent! This is the origin of the Pangu Continent, it just so happens that this transliteration is very similar to Pangu, and the pangu that opened up the world in ancient Chinese mythology is a perfect match, and one look at it knows that this is the ancient period!
Where is the evidence?
This evidence came earlier than Wegener's theory of drift, and paleontologists have found that many paleontological fossils are evidence of continents connected together, and even South America, Africa, Australia, India, and Antarctica are interconnected.
There was also the British Brad in 1965 who spliced the "New World" shape of the continental shelf at a depth of 900 meters to the edge and spliced it again, and remembered that the accuracy of the discovery was much higher than that of the modern world map stitching, and some of the locations overlapped, and it turned out that this was the mouth of the major rivers, which was the new land after the impact of the plain!
There are also glaciations and paleoclimates, but the greatest support is undoubtedly the 1960s American and French scientists found that the North-South cracks in the Atlantic Ocean bottom existed very spectacular, and not only the Atlantic Ocean bottom exists, but also in the Pacific Ocean, the Indian Ocean, the Arctic Ocean floor has similar submarine mountains, these mountain systems are connected, across the ocean basins, continuous up to 80,000 kilometers, the mountain body is 1500 meters to 3000 meters above the seabed, the width of more than 1,000 meters to thousands of meters!
Mid-ocean ridge distribution
A series of volcanic structural systems at the boundaries of the global sea tensile plates are caused by the rise of the mantle troposphere gushing out at the crust and rapid cooling into basalt, and the rocks in the center of the mid-ocean ridge are the youngest, close to the continents, and re-enter the crust, return to the mantle, and complete a cycle.
<h1 class="pgc-h-arrow-right" > where was your home 300 million years ago, and who are our neighbors? </h1>
Having said so much nonsense, anyway, the earth plate is moving, but it is moving too slowly, no one can feel it! But the time is stretched to 100 million years is not the same, so 300 million years ago, our circle of friends are those countries?
Distribution of modern states on ancient Earth
Massimo Pietrobon has produced a distribution of countries on the continent of Pangea, which is very interesting, let's see who our neighbors are! In fact, the changes are not large, such as Vietnam, Laos, Thailand, India, etc., almost no change, but some areas are small, because part of the land was still under the sea at that time!
But the direction is almost the opposite, because after the division of Pangea, many continents have turned, such as the Indochina Peninsula from the east to the south, and Greenland was originally on the equator, and now runs into the Arctic Circle, so it is not surprising that tropical fossils are found on Greenland!
Greenland, Source: Map Emperor
But since 250 million years later, these continents have gradually separated, and finally formed the current continental distribution, but don't worry, according to geologists, in another hundred million years will be merged together, of course, they will have different opinions, there may be several versions, such as the new Pangu Continent, Pangu Ultimate Edition, Aocun version of the supercontinent and the Amazon supercontinent.
If the Current Development were to follow, the Atlantic Ocean would gradually widen, the Pacific Ocean would narrow, and the Americas would meet with Antarctica, which was drifting northward, and then collide with the Afro-Eurasian plate that had already been put together to form the Novopangea superpancotan. Other versions are developing at present if there are many factors, and the continents formed are also different!
What will the Earth become if it becomes a supercontinent?
In fact, supercontinents are not friendly to life, because the water vapor in the depths of the supercontinent is difficult to penetrate deeply, and an arid climate will be formed, and the hinterland of modern continents in addition to South America is mostly deserts or deserts, so when the future continent is formed, it will trigger a large wave of life extinction!
Desert distribution in Africa
In addition, the climate will also change greatly, and it is difficult to predict whether a new warm period or ice age will be formed, but this will be at least 100 million years, and you still don't have to worry.