The results were published in the journal Geological Society of America Bulletin, cited by RIA Novosti.
Japanese scientists from the University of Tsukuba studied the composition of clays on the border of Cretaceous Paleogen in Denmark, and found that layers aged 66 million years are rich in copper, silver and lead compared to surrounding rocks and, to a lesser extent, zinc, gallium and arsenic. ocean sludge. Consequently, the waters of the World Ocean were enriched with these so-called halcophylic elements at the time, writes Focus.
The association of these metals with iridium, an element of cosmic origin and a juxtaposition of age with the shock event reflected by Mexico's Yucatan peninsula crater suggests that the enrichment of the chalcophylic elements is also somehow linked to the asteroid that caused the death of dinosaurs.
The results of the study reveal another aspect of the global catastrophe that occurred on Earth at the end of the Cretaceous and Paleogen period.
The asteroid that destroyed the dinosaurs enriched the ocean with metals
A layer of ocean clay, having an age of 66 million years, is enriched with so-called halcophylic elements. At the time, an asteroid collides with Earth, which most Japanese scientists say triggered one of the most mass extinctions, resulting in dinosaurs disappearing from the face of the Earth.tags:
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