An international team of scientists has found evidence of a huge asteroid that would have struck Earth early in its life. This evidence is nothing more than a series of tiny glass beads called spherules discovered in the sediments of the seabed in northwest Australia and which, according to scientists in the journal Precambrian Research , date back to 3.46 million years and They would have been formed from material vaporized by the impact of asteroids.
This huge asteroid of about 20-30 kilometers in diameter that struck the primitive Earth (it would represent the second oldest known), would have impacted in such a way that earthquakes and tsunamis of colossal magnitudes would have hit the surface of the young Earth with tremendous force, causing probably from many of the current cliffs.
A crater of hundreds of kilometers
Despite these data, experts do not know the exact place of the ancient impact due to volcanic activity and tectonic movements, but they believe that the asteroid would have created a crater hundreds of kilometers wide due to its size;
The glass beads were discovered in a drill core at Marble Bar in northwestern Australia, an area that has some of the oldest known sediment layers . Thanks to the fact that this particular one was preserved between two volcanic layers, it has allowed its conservation and its specific dating.
