Will the mainland move?

If you have enough interest and time to look at the map of the world carefully, you may find something amazing. The west coast of South Africa and the east coast of South America are like a broken biscuit, which can be intuitively put together into a whole. People who may not have heard of "continental drift" will think that this is just a joke, but it is not that simple.

As early as the early 20th century, Wei Gena put forward a bold hypothesis based on the outline, strata and paleontology of the mainland, saying that the mainland would drift. Wei Gena, a scientist with clear thinking and keen insight, has been thinking while observing the land contours on both sides of the ocean on the map. Through other investigations and studies, according to the similarity and continuity of paleontological fossils, stratigraphic structure and lithofacies, he constantly searched for evidence of land overlap on both sides of the Atlantic Ocean and put forward the possibility of continental lateral movement. It is inferred that as early as 300 million years ago, there was a vast and continuous water area on the earth-"pan-ocean". Centrifugal force produced by the continuous rotation of the earth and tidal force of celestial bodies. Only then did cracks appear in the United ancient land and gradually separated and drifted into the land-sea distribution that people see today.

But what he said was considered a ridiculous joke. Wei Gena still believes in "continental drift". In order to further find the evidence of "continental drift", he went to the Arctic and made an investigation on Greenland. 19 12, Wei Gena gave a lecture on "the origin of continents and oceans" at the Geological Society held in Frankfurt, and put forward the hypothesis of continental drift. In order to study glaciology and paleoclimatology, I went to Greenland again. But World War I forced him to stop his research work. Wei Gena was seriously injured on the battlefield, but during his convalescence, he wrote and published The Origin of the Continent and the Ocean, which gave a general exposition of the theory of continental drift, but it was not accepted by people. Although it has been affirmed by geologists and paleontologists, more geophysicists disdain and refute it.

Until 1968, French geologist Le Pixiong, together with Mackenzie and Morgan, put forward the "plate tectonic theory", also known as the "global tectonic theory". They believe that the continental crust or the oceanic crust has undergone a large-scale horizontal movement and has been continuously moving. But it is not the continental drift between the Si-Al layer and the Si-Mg layer, but the whole mantle asthenosphere moves like a conveyor belt, and the continent is like a "passenger" being transported.

So far, whether the mainland is drifting can only be inferred by hypothesis. But scientists will continue to explore this mystery and gradually solve the theory of plate tectonics. Unveiling the mystery of continental plate activities, I believe that one day we will certainly understand the evolution history of the earth's continental plate for 4.6 billion years.