• For full details of graphics available/in preparation, see Menu -> Planners
 Meteoritenkrater unter dem Grönland Eis infographic
Grafik zeigt den Ort und Details der Entdeckung
GN38528DE

WISSENSCHAFT

Riesiger Einschlagkrater wurde unter Grönlandeis entdeckt

By Jordi Bou

November 15, 2018 - Es könnte ein riesiger Meteoritenkrater sein, der unter Grönlands Eisdecke entdeckt wurde. Wenn die Ursache des Kraters bestätigt wird, wäre es der erste Meteoriteneinschlag unter der Kontinentaleisdecke

Investigations suggest the feature, found under the Hiawatha Glacier, was probably dug out by a 1.5km-wide iron asteroid
between about 12,000 and three million years ago.

The impact of such meteorite would have had significant ripple effects in the region, possible even globally.

A team of researchers from the University of Copenhagen's Centre for GeoGenetics at the Natural History Museum of Denmark first spotted the crater in July 2015.

The 31km-wide depression came to light when scientists examined radar images of the island's bedrock.

The initial finding was made with data from NASA’s Program for Arctic Regional Climate Assessment and Operation IceBridge.

More data was collected since then, using more advanced radar technology by the Alfred Wegener Institute’s Polar 6 research aircraft.

The sepresion is larger than Washington DC and would rank among the top 25 known craters in the world.

Sources
PUBLISHED: 15/11/2018; STORY: Graphic News; PICTURES: NASA/Jefferson Beck, Nasa/Cryospheric Sciences Lab/Natural History Museum of Denmark
Advertisement