150km asteroid hit Earth, a series of new creatures were born
A multinational team has found evidence of an ice age of life caused by a giant asteroid 466 million years ago.
A famous giant asteroid that makes dinosaurs and a variety of earth creatures extinct. But before that, another giant had the opposite: making life explode across the Earth's oceans. That's what the team of scientists led by Professor Birger Schmitz (Lund University, Sweden) discovered through his study of swirling into sedimentary samples in many places on Earth - the rocks were once Ancient seabed of the Ordovician period.
Fossils of a meteorite are associated with the asteroid collision 466 million years ago - (photo: BIRGER SCHMITZ).
They found the presence of many strange substances, such as the elements and isotopes that rarely appear in the Earth, hellium atoms were missing a neutron, proving that it was fired from the sun and lang. ladder in space. Compared to younger meteorite samples from Antarctica, scientists have demonstrated the spatial origin of ancient rock and dust samples interspersed in Earth rocks.
The chemical evidence revealed a terrifying collision 466 million years ago. An asteroid from the asteroid belt between Mars and Jupiter has strayed to Earth, crashing right into our planet.
It is estimated that the asteroid has a width of up to 150 km, so the impact force is enormous. Like the end of the dinosaurs, the asteroid also released a large amount of meteorite dust, creating a cloud of clouds covering the earth, preventing sunlight from reaching the earth, creating an ice age. ha great.
In a time when the Earth was a pristine planet, this ice age did not cause disaster, but it also triggered an explosion of new species across the oceans. Traces of strange creatures born during this period have been recorded by paleontologists around the world.
These creatures are mainly plankton, the basis of the ocean food chain, such as coral sponges, starfish, sea urchins . Previously, there were studies that some of the This creature, especially sponges, can be the "ancestor" of many modern species, including . us humans.
The birth of this new series of organisms was named the Ordovic Biodiversity Event .
An organism born in the Ordovic Biodiversity Event - (photo: BIRGER SCHMITZ).
The results of this research also lead scientists to a bold ambition: creating a release of fake meteorite dust, which means no real collision, the Earth's inhabitants are still safe, but a moderate amount of dust Enough will be released into the air as in the ancient collision. This man-made dust cloud can save the world, helping to lower the temperature of the earth, offsetting the increase in global temperatures caused by greenhouse gas emissions.
However, according to Dr. Philipp Heck (University of Chicago - USA, subordinate to Field Museum in Chicago), a research team member, this proposal needs to be carefully considered because with just one mistake, we can cause a bad deal instead of saving the Earth.
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