Jänisjärvi

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Jänisjärvi is a lake in the Republic of Karelia, Russia north of the Lake Ladoga.

The basin of this somewhat circular lake was formed by a meteor impact 700 ± 5 million years ago placing it in the Cryogenian period. The crater is 14 km in diameter.

Prior to the Second World War, the lake was thought to be the second known volcanic caldera in Finland (the other was Lake Lappajärvi). Both were eventually recognized as impact craters.

[edit] External link

• Earth Impact Database

This Northwestern Russia location article is a stub. You can help Wikipedia by expanding it.

Retrieved from "http://en.wikipedia.org../../../j/%C3%A4/n/J%C3%A4nisj%C3%A4rvi.html"

Categories: Northwestern Russia geography stubs | Craters of Russia | Lakes of Russia | Proterozoic craters

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• This page was last modified 01:37, 11 February 2007 by Wikipedia user Gilgamesh. Based on work by Wikipedia user(s) Crocadog, Darwinek, Conscious, Jyril, Casito, SeventyThree, Grutness, Zoney, DaveGorman and Bryan Derksen.
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