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Дата изменения: Mon Apr 11 05:56:55 2016
Дата индексирования: Mon Apr 11 05:56:55 2016
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Поисковые слова: manicouagan crater
<b style="color:black;background-color:#ffff66">Manicouagan</b> Impact <b style="color:black;background-color:#66ffff">Crater</b> on Earth
Astronomy Picture of the Day
    


Manicouagan Impact Crater on Earth
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Manicouagan Impact Crater on Earth
Credit & Copyright: STS-9 Crew, NASA
Explanation: The Manicouagan Crater in northern Canada is one of the oldest impact craters known. Formed during a surely tremendous impact about 200 million years ago, the present day terrain supports a 70-kilometer diameter hydroelectric reservoir in the telltale form of an annular lake. The crater itself has been worn away by the passing of glaciers and other erosional processes. Still, the hard rock at the impact site has preserved much of the complex impact structure and so allows scientists a leading case to help understand large impact features on Earth and other Solar System bodies. Also visible above is the vertical fin of the Space Shuttle Columbia from which the picture was taken in 1983.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: crater - Earth - Manicouagan crater - impact crater - impact
Publications with words: crater - Earth - Manicouagan crater - impact crater - impact
See also:
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