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Suvasvesi

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Location
  
Northern Savonia

Basin countries
  
Surface elevation
  
82 m

Number of islands
  
688

Type
  
impact craters

Max. depth
  
89.0 m (292 ft)

Area
  
233.6 km²

Suvasvesi wwwfishinginfinlandfikuvatvesistot225smalljpg

Surface area
  
233.58 km (90.19 sq mi)

Suvasvesi is a lake in Eastern Finland near the town of Kuopio. Suvasvesi consists of two circular open lakes, Kuukkarinselkä in north and Haapaselkä in south. The lakes are separated by a group of islands. The lake has 688 islands in total. The area of the lake is 234 square kilometres (90 sq mi) making it the 18th largest lake in Finland. Kuukkarinselkä is the third deepest lake in Finland measuring 89.0 metres (292.0 ft) in the deepest point.

Map of Suvasvesi, Finland

In 2001, shatter cones were found in Kuukkarinselkä making it the 6th known impact crater in Finland. The crater, usually referred as Suvasvesi North crater, is located in the center of Kuukkarinselkä and measures about 3.5 kilometres (2.2 mi) in diameter. Its age is estimated to be about 85 Ma but the Earth Impact Database (EID) gives a broader span of less than 1000 Ma.

Haapaselkä resembles the northern counterpart and it was also suspected to be an impact crater. It has recently been confirmed and is usually referred as Suvasvesi South crater. It is similar in size, and the age of the crater is estimated to be older than 700 Ma (probably about 710–720 Ma) based on argon-argon dating of impact melt rocks found near the southeastern shore of Lake Haapaselkä but EID gives it as around 250 Ma.

References

Suvasvesi Wikipedia


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