Suvasvesi

Impact crater

Suvasvesi is a lake in eastern Finland near the city of Kuopio. The lake consists of two circular open water areas, Kuukkarinselkä in the north and in the south Haapaselkä. The two lakes are separated by part of a group of islands. The Suvasvesi has 688 islands. The lake is 234 km ². He is the eighteenth largest lake in Finland. Kuukkarinselkä is with a maximum water depth of 89 m the third deepest lake in Finland.

In the northwest of Suvasvesi a sound with the Kallavesi is connected. At this Sund is the place Vehmersalmi. Together with the Kallavesi and other lakes forms the Suvasvesi the iso- Kalla - lake system. To the east of Suvasvesi flows to Kermajärvi and the Heinäveden reitti from the Haukivesi.

Impact craters

In 2001, rock debris was found on Kuukkarinselkä. Thus, the known as North Suvasvesi impact crater is the sixth documented in Finland. Its crater diameter is about 3.5 km. The timing of the impact is not yet known. However, it is estimated to be 770 ± 60 million years. The crater is located at ( 62 ° 39 '0 "N, 28 ° 10' 0" O62.6528.166666666667 ).

Haapaselkä resembles its northern counterpart. There also is an impact crater. The impact crater is called Suvasvesi South. The crater diameter is estimated to 3.8 km. His age was on the south shore of the lake dates back to 710 million years due to argon studies of impactites. The crater is located at ( 62 ° 35 ' 54 " N, 28 ° 12' 59" O62.598428.2163 ).