Earth:Målingen Crater
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Short description: Asteroid impact crater in Sweden
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| Impact crater/structure | |
|---|---|
| Confidence | Confirmed |
| Diameter | 1 kilometre (0.62 mi) |
| Age | 458 Ma |
| Country | Sweden |
| Municipality | Östersund |
Målingen was confirmed as an impact crater in 2014. It is located near the city of Östersund in northern Sweden.[1] It is "probable" that it formed simultaneously with the nearby Lockne crater.[2][3] Computer simulations suggest the asteroid pieces that created the Lockne and Målingen craters were some 600 meters and 250 meters in diameter, respectively.[3]
Målingen is 1 kilometre (0.62 mi) in diameter and its age is estimated, using chitinozoan microfossils, which were also found in Lockne, to be 458 million years (Late Ordovician).
References
- ↑ Alwmark, C; Alwmark-Holm, S; Ormö, J; Sturkell, E (2014). "Shocked quartz grains from the Målingen structure, Sweden—Evidence for a twin crater of the Lockne impact structure." (in English). Meteoritics & Planetary Science 49 (6): 1076-1082. doi:10.1111/maps.12314.
- ↑ Ormö, J; Sturkell, E; Nõlvak, J; Melero-Asensio, I; Frisk, Å; Wikström, T (2014). "The geology of the Målingen structure: A probable doublet to the Lockne marine-target impact crater, central Sweden.". Meteoritics & Planetary Science 49 (3): 313–327. doi:10.1111/maps.12251.
- ↑ 3.0 3.1 Raul Rincon (2014). BBC News: "Ancient Earth hammered by double space impact", 18 March 2014: accessed 19 March 2014.
[ ⚑ ] 62°55′N 14°33′E / 62.917°N 14.55°E
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