For a long time, the mystery of the death of dinosaurs gave researchers no peace and tried to understand what exactly provoked the mass death of the giant creatures that inhabited our planet long before the appearance of man. It is believed that dinosaurs died out due to the fall of a huge meteorite that fell into the earth about 65 million years ago. After researching the Chiksulub crater remaining after the meteorite fall, a team of scientists succeeded in recreating the chronology of the "doomsday" of the dinosaur era.
Why are dinosaurs extinct?
It seems it can ruin huge land monsters that are the size of a whale? Maybe just a huge meteorite a few kilometers long. But it would not be enough to turn dinosaurs into a handful of ashes.
The extinction of the dinosaurs began long before the meteorite fell, which only aggravated the natural process. The fact is that about 65 million years ago, during the Late Cretaceous period, an unexpected cooling took place that led to the appearance of flowering plants. These two events disrupted the ecosystem so familiar to the famous tyrannosaurs, triceratops, and iguanodons. At the time of the fall of the Chiksulub meteorite, only a handful of once-mighty beings remained on the planet.
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Only these "dinosaurs" survived such a biological catastrophe, which at the time of the fall of the asteroid could get wings, with which evolution carefully cared for them. Information about these winged creatures can be found on our channel in Yandex.Zen.
Are the dinosaurs extinct at the same time?
Immediately after the fall of the asteroid, the entire planet was covered by forest fires and tsunamis, which killed 75% of all life on earth. For a while the planet plunged into complete darkness.
After studying the rocks of the Chiksulubsky meteorite, the researchers concluded that after the fall of the asteroid, the surrounding soil has completely evaporated due to the action of thermal energy. The interaction energy of the meteorite and the seafloor was so strong that the asteroid caused a 1.5 km high wave when hitting the water. A huge tsunami flew over the planet at the speed of a jet plane, literally flushing away whatever came in its way.
Required reading: Asteroid that puts an end to dinosaurs: as it was
In the dust layer that covered the deadly asteroid crater, the researchers found a large amount of charcoal, suggesting that after the tsunami around the planet, huge forest fires occurred, causing the release of sulphate aerosols and for a long time caused by the darkness that lasted for several decades.
Without solar energy entering the planet's atmosphere, almost all of the planet's flora and fauna have become extinct. Those who somehow survived formed a whole new planetary ecosystem that we can observe today.