Traces of meteorites about 11 million years ago Discovered on the seabed
Research groups such as the Japan Agency for Marine-Earth Science and Technology have discovered traces of massive meteorites colliding about 11 million years ago on the ocean floor off Minamitorishima in the Pacific Ocean. It is likely that it has become.
Research groups such as the Japan Agency for Marine-Earth Science have excavated the ocean floor off the coast of Minamitorishima in the Pacific Ocean and found that special elements such as iridium and platinum are several tens of times as high as 3 meters below the ocean floor. I found that there is a part that reaches the concentration of.
Rapid rises in concentrations of iridium and platinum are considered to be traces of meteorite collisions, and when analyzed by age, it was estimated to be about 11 million years ago.
Massive extinction has occurred on the earth, with about 15% of the main organisms killed around 11.6 million years ago, mainly in mammals. Until now, the cause has been considered a mystery, but the research group has been iridium It is highly likely that a huge meteorite with a diameter of several kilometers fell and mass extinction occurred.
According to the Japan Agency for Marine-Earth Science and Technology, mass extinction of organisms has occurred at least 11 times on the earth so far, including the extinction of dinosaurs about 66 million years ago. It is possible that
Tatsuo Nozaki, group leader, Japan Agency for Marine-Earth Science and Technology, said, “It was a coincidence but I was very excited. I would like to investigate further and identify where the meteorite fell.”