The formation and evolution of our planet remains a great mystery. if the earth were 100 years old todaywe can say that man was born just a month ago —This equates to 6 million years on Earth, compared to the 4,500 million years in which humans have lived on the planet.
a) yes, We can only imagine and guess About that long history we haven’t seen. What was the planet like a billion years ago? We’ll never know. But still, from time to time science find amazing things About Earth’s past.
Research conducted at Curtin University and published in the journal Nature he got strong evidence that the formation of continents on planet Earth was, astonishingly, The impact of giant meteors in the first billion years of their lives.
Have you stopped to think that Earth is the only known planet – inside and outside the Solar System – that has continents? and since Continents Contain Most of Earth’s BiomassNearly every major mineral deposit on the planet and – of course – is home to humans, Understanding their formation may also be important for understanding the evolution of our own species.,
Tim Johnson, a researcher in the Curtin School of Earth and Planetary Sciences, noted the idea that continents originally formed at giant meteorite impact sites. has been for decadesbut what was there little proof To support the theory, so far.
How did they discover that giant meteors may have formed Earth’s continents?
Researchers analyzed small zircon crystals Among the rocks found in the Pilbara Craton (Australia), which is one of only two ancient archaic crusts Identified on the planet, the living remains of what the planet was almost 4 billion years,
The study revealed a melting process that began at the surface and then moved to the depths, not the other way around. This process is analogous to the geological impact caused by the impact of giant meteors.,
Johnson said that “our research provides first solid evidence that the processes that led to the formation of the continents began giant meteor strike – similar to the one that only caused the extinction of the dinosaurs billions of years ago.”
If we keep in mind that the terrestrial continents port critical metal such as lithium, tin and nickel, extremely important raw materials for emerging climate change mitigation technologies, underscores the importance of further understand your trainingWhich came about through a process called cortex differentiation.
Now, scientists plan to test the findings Other regions of ancient continental crust around the planetTo find out if the model is really universal. For now, we can only imagine Incredibly devastating effect Think about these meteors that hit the planet and shape its surface, and all that remains to be discovered.