Wednesday , April 21 2021

The hole as big as Paris found in Greenland

A larger hole than the city of Paris was discovered recently in Greenland.

The reason why so far has gone unnoticed is that it was hidden under the ice of the Greenland Glacier Hiawatha.

The 31-kilometer-wide depression was discovered when scientists examined the radar images obtained from the island's rocky base and suggested that It could be a crater.result of the impact of a iron asteroid 1.5 kilometers wide.

If confirmed, the crater would be the first that can be observed in one of the layers of ice which cover our planet Earth.

The finding was published in the journal Advancement of Sciences, but the research team, made up of staff from different universities and museums around the world, has not yet succeeded. uncover all your secrets.

A mystery to solve …

The crater It is exceptionally well maintained and this is surprising because ice from the glacier is an incredibly efficient erosive agent that would have quickly eliminated traces of impact, "said Professor Kurt H. Kjaer of the Center for Geogenesis at the Natural History Museum in Denmark, to the press.

The evidence that leads geologists to think that it was a meteorite that fell on Earth is the sediments of quartz They are found in the waters of the Hiawatha Glacier and appear to have been under tremendous pressure.

Scientists believe this can only be explained by a huge impact.

But there is one important fact that they have not yet been able to reveal: at the time the collision occurred.

They believe that this could have happened only 12,000 years ago or 3 million years ago, but until they can drill the thousand meters of ice that allow them to collect samples of the crater itself, they can not be more specific, they say.

… that would explain many other things

If it had happened 12,000 years ago, Pleistocenewould be a reasonably young meteorite and could be the explanation for other phenomena that occurred at the same time.

Dr. Iain McDonald of the University of Cardiff in the UK believes that he could explain even return to the ice age.

"If we can establish that it is so young, we can relate it to a climatic phenomenon we call Dryas Recent, a period of cooling of the Earth that affected the Northern Hemisphere and lasted about 1,000 years, "said the researcher on the radio program Today of the BBC.

It was during this same period that he they extinguished the mammoths. The discovery of the crater, McDonald believes, may be the cause behind its extinction, as well as the disappearance of a civilization, the clobis, one of the oldest in North America, which lived 14,000 years ago.

Before, he warned, they need to have access to the rock and be able to determine precisely when the impact of what they believe to be a meteor has occurred.

Source link