Lake Lappajärvi
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| Lake Lappajärvi | |
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| Lappajärvi is the largest lake near the lower right corner. | |
| Location | Lappajärvi, Finland |
| Coordinates | 63°12′N 23°42′E / 63.2°N 23.7°ECoordinates: 63°12′N 23°42′E / 63.2°N 23.7°E |
| Lake type | impact crater |
| Primary outflows | Ähtävänjoki |
| Basin countries | Finland |
| Surface area | 145.49 km2 (56.17 sq mi)[1] |
| Max. depth | 36 m (118 ft) |
| Surface elevation | 69.5 m (228 ft)[1] |
| Islands | 56 (Kärnä) |
| References | [1] |
Lappajärvi is a lake in Finland, in the municipalities of Lappajärvi, Alajärvi and Vimpeli. It is formed in a 23 km (14 mi) wide meteorite crater. The age of the crater is estimated to be 73.3 million years old (±5.3 million years)—the upper Cretaceous period.[2] The lake is part of Ähtävänjoki (Swedish: Esse å) basin together with Lake Evijärvi that is located downstream of it.
[edit] References
- ^ a b c "Finnish lakes larger than 40 square kilometers". Finnish Environment Institute. http://www.ymparisto.fi/default.asp?contentid=234185&lan=fi&clan=en.
- ^ "Lappajärvi". Earth Impact Database. University of New Brunswick. http://www.passc.net/EarthImpactDatabase/lappajarvi.html. Retrieved 2009-05-24.
[edit] External links
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