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.
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[4] but the Earth Impact Database (EID) gives a broader span of less than 1000 Ma.[5]
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.[1][2][6] 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[7] but EID gives it as around 250 Ma.[6]
^ abcdFinnish Environment Institute: Finnish lakes larger than 40 square kilometers 2011-07-25 at the Wayback Machine
^ abcPohjois-Savon ympäristökeskus: Suvasvesi 2007-09-27 at the Wayback Machine
^ abKauko Huotari: Suomen suurimmat järvet 2009-04-26 at the Wayback Machine
^Schmieder, M., Schwarz, W. H., Buchner, E., Pesonen, L. J., Lehtinen, M. & Trieloff, M. 2012. Double and multiple impact events on Earth - Hypotheses, tests, and Problems. 75th MetSoc meeting (13–18 August 2012), Cairns, Australia, abstract no. 5005.
^Buchner, E., Schmieder, M., Schwarz, W. H., Trieloff, M., Moilanen, J., Öhman, T., Stehlik, H.: A Proterozoic 40Ar/39Ar age for the Suvasvesi South structure (Finland). MetSoc 72, abstract no. 5076
suvasvesi, lake, eastern, finland, near, town, kuopio, consists, circular, open, lakes, kuukkarinselkä, north, haapaselkä, south, lakes, separated, group, islands, lake, islands, total, area, lake, square, kilometres, making, 18th, largest, lake, finland, kuuk. Suvasvesi is a lake in Eastern Finland near the town of Kuopio Suvasvesi consists of two circular open lakes Kuukkarinselka in north and Haapaselka 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 Kuukkarinselka is the third deepest lake in Finland measuring 89 0 metres 292 0 ft in the deepest point SuvasvesiLandsat 7 imageSuvasvesiwith the impact structures in gray LocationNorthern SavoniaCoordinates62 39 N 028 12 E 62 650 N 28 200 E 62 650 28 200TypeImpact crater lakeBasin countriesFinlandSurface area233 58 km2 90 19 sq mi 1 Max depth89 0 m 292 ft 2 Surface elevation81 7 m 268 ft 1 Islands688 3 References 1 2 3 In 2001 shatter cones were found in Kuukkarinselka making it the 6th known impact crater in Finland The crater usually referred as Suvasvesi North crater is located in the center of Kuukkarinselka and measures about 3 5 kilometres 2 2 mi in diameter Its age is estimated to be about 85 Ma 4 but the Earth Impact Database EID gives a broader span of less than 1000 Ma 5 Haapaselka 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 1 2 6 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 Haapaselka 7 but EID gives it as around 250 Ma 6 See also editImpact craters in FinlandReferences edit a b c d Finnish Environment Institute Finnish lakes larger than 40 square kilometers Archived 2011 07 25 at the Wayback Machine a b c Pohjois Savon ymparistokeskus Suvasvesi Archived 2007 09 27 at the Wayback Machine a b Kauko Huotari Suomen suurimmat jarvet Archived 2009 04 26 at the Wayback Machine Schmieder M Schwarz W H Buchner E Pesonen L J Lehtinen M amp Trieloff M 2012 Double and multiple impact events on Earth Hypotheses tests and Problems 75th MetSoc meeting 13 18 August 2012 Cairns Australia abstract no 5005 SuvasvesiNorth Earth Impact Database Planetary and Space Science Centre University of New Brunswick Fredericton Retrieved 2016 05 25 a b SuvasvesiSouth Earth Impact Database Planetary and Space Science Centre University of New Brunswick Fredericton Retrieved 2016 05 25 Buchner E Schmieder M Schwarz W H Trieloff M Moilanen J Ohman T Stehlik H A Proterozoic 40Ar 39Ar age for the Suvasvesi South structure Finland MetSoc 72 abstract no 5076External links edit nbsp Media related to Suvasvesi at Wikimedia Commons Suvasvesi N and S impact structures permanent dead link nbsp This Eastern Finland location article is a stub You can help Wikipedia by expanding it vte nbsp This article related to the Triassic period is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Suvasvesi amp oldid 1124436757, wikipedia, wiki, book, books, library,
