Lake Yanisyarvi
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(Redirected from Jänisjärvi)
| Yanisyarvi | |
|---|---|
| Location | Republic of Karelia |
| Coordinates | 61°58′N 30°55′E / 61.967°N 30.917°ECoordinates: 61°58′N 30°55′E / 61.967°N 30.917°E |
| Lake type | impact crater lake |
| Basin countries | Russia |
Lake Yanisyarvi (Russian: Янисъярви; Finnish: Jänisjärvi) is a lake in the Republic of Karelia, Russia, located north of and draining to Lake Ladoga.
The basin of this somewhat circular lake was formed by meteorite impact 700±5 million years ago during the Cryogenian period. The crater is 14 kilometers (8.7 mi) in diameter.[1]
Prior to World War II, 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] References
- ^ "Jänisjärvi". Earth Impact Database. University of New Brunswick. http://www.passc.net/EarthImpactDatabase/janisjarvi.html. Retrieved 2009-08-19.
[edit] External links
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