Hadian is the most mysterious period in Earth’s history because we have no record of the Earth’s rocks, which actually tell us about the state of our blue planet 4 billion years ago. We do not know for sure whether the seas already existed at that time and if there were any less if life had appeared there. .
Undoubtedly, at least by the beginning of Hadian, the earth was once covered by the sea.Volcanic activity and bombing, even if global and eventually form a crust And We must make our planet a hell worthy of the Greek god Hades for at least a hundred million years.
Would the first age of our planet have been unworthy of life? Is there nothing left in this hellish time? Are we sure? Then, how a “ball of fire” became the planet we know, surrounded by the oceans … In nine minutes, unfortunately, the recently deceased geologist Herv Martin gives you the keys to decoding the environment of ancient land. . © French Society of Exophology
Two researchers from Yale and Caltech University in the United States, And Yoshinori Miyazaki, published in the popular newspaper An interesting article The global transformation of the ancient earth, which caused it to pass from one ball to another At Over a period of about 500 million years. Their mission is to capture carbon dioxide and bring a new perspective that the Earth has become a habitable and inhabited planet, which is not the case today. Until one believes the arguments put forward about the possibility .
Exotic peroxides are disappearing
Korenaka and Miyazaki now argue that during Hadian’s time, rocks that do not exist today reacted with water.According to geochemical processes, when the Earth’s atmosphere was 100,000 times larger Than today.
LawsFluid dynamics and that And some Atmospheres of the Earth’s interior are built by Hadian’s modeling According to two geologists, it seems that especially concentrated rocks saved the earth from hell with a temperature of over 200 degrees Celsius. Belongs to the large family of pyroxenes – from the Greek language ⁇ (Fire) and ⁇ (Stranger): “Stranger to the Fire” -, Common elements And metamorphic species exist on Earth today.
These exotic rocks that do not exist now are particularly fertileThese types of rocks ( ) Had to react with CO2 Giving carbonate.
The formation of carbonates made it possible to remove large amounts of carbon dioxide from the atmosphere, which is found in the form. This is not new and geologists have been considering it for a long time.Deposited after Hadian
But in the new model of Korenaka and Miyazaki, theHadian’s heat and convection and Combined with these exotic peroxides, carbon dioxide would have decomposed 10 times faster. . It would have taken only 160 million years.
As a bonus, as mentioned in a Yale University press release, the contact of the first ocean waters with the now extinct peroxinite would have been the same as it is today. (Lost city) in the middle of the Atlantic.Of
Hervé Cottin, astronomer, university professor, LISA, University of Paris Est Créteil / University of Paris / CNRS, tells us about the Astrobio Education site, which invites you to discover exobiology. In the universe. Through an educational journey divided into 12 stages, researchers from a variety of disciplines will be able to understand how science works to understand the origins of life outside the Earth and how it responds to fascinating questions about its research. © French Society of Exophology