Date: 2 months ago   Category: Society

Under thickness of ice found a huge shock crater (video)


In only 183 km from a 31-kilometer shock crater found in November on a glacier Hiawatha in the northwest of Greenland scientists of Space management of the USA found one more - a little more dimensions. The press service of NASA writes about opening.

As well as in the first case, "funnel" is located under ice thickness at a depth about 1.5 km.

If available data are confirmed, then the found crater more than 35 km in the diameter will be among 22nd the largest on the planet.

When opening is used the analysis of the topographic maps made on the basis of pictures of a surface of the island from the Terra and Aqua satellites and also radar measurements within Operation IceBridge mission.

In the raw radar pictures of radical breeds under ice layer scientists saw cup-shaped deepening which is at the edges surrounded with slightly raised breed, and in its center - some heights. Also in this place - negative gravitational anomaly, characteristic of shock craters.

Age of ice over this crater is estimated approximately at 79 thousand years. According to glaciologists, the structure of a funnel underwent a bigger erosion, than in a crater on Hiawatha.

Researchers believe that two found craters are probably formed at different times, but are not "brothers" because of falling of a double asteroid.

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