Žemaitkiemis meteorite
| Žemaitkiemis | |
|---|---|
| Type | Chondrite |
| Class | Ordinary chondrite |
| Group | L chondrite |
| Subgroup | L6[1] |
| Country | Lithuania |
| Region | Ukmergė District Municipality |
| Coordinates | 55°18′N 25°00′E / 55.300°N 25.000°E |
| Observed fall | Yes |
| Fall date | 2 February 1933 |
| TKW | 44 kilograms (97 lb) |
| Strewn field | Yes |
Žemaitkiemis meteorite is an ordinary chondrite that fell near Žemaitkiemis, Lithuania at about 8:33 pm on 2 February 1933.[2] Using the argon–argon dating method, scientists have calculated its age to be about 520 million years.[3]
The fall was observed by the Koenigsberg Observatory. Since the meteorite fell near inhabited areas during winter, it was rather easy to locate the fragments in the snow.[2] In total, 20 fragments with a combined weight of 42.2 kilograms (93 lb) were collected and donated to the Vytautas Magnus University. The largest pieces weighted 7,258 and 7,080 grams (256.0 and 249.7 oz).[2] Two other fragments were gifted later – 36.6 grams (1.29 oz) and 1,840 grams (65 oz) – to the Institute of Geology and Geography in Vilnius.[4] There were also reports of a 10 kilograms (22 lb) fragment found about 3 kilometres (1.9 mi) from Žemaitkiemis in 1938.[5] More pieces likely fell into the Kliepšiai Lake or were kept by the locals.[2]
The main mass, two largest fragments and 13 other fragments, are held by the Geology Museum of Vilnius University.[6] Other fragments are held by: 2.1 kilograms (4.6 lb) by the National Museum in Prague, 1.1 kilograms (2.4 lb) by the Russian Academy of Science, 636 grams (22.4 oz) by the Natural History Museum in London, 69 grams (2.4 oz) by the National Museum of Natural History in Paris,[7] 33 grams (1.2 oz) by the Field Museum of Natural History in Chicago, 13.9 grams (0.49 oz) by the Geological Survey of Canada, and others.[1]
On 14 July 2017, President Dalia Grybauskaitė approved a coat of arms of Žemaitkiemis that features the meteorite fall.[8]
References
[edit]- ^ a b Grady, Monica M. (2000). Catalogue of Meteorites Reference Book with CD-ROM (5th ed.). Cambridge University Press. p. 543. ISBN 0-521-66303-2.
- ^ a b c d Kaveckis, Mykolas (1935). Žemaitkiemio meteoritas, kritęs 1933 m. vasario mėn. 2 d. (PDF) (in Lithuanian). pp. 4–7, 17.
- ^ Bogard, Donald (May 1995). "Impact ages of meteorites: A synthesis". Meteoritics. 30 (3): 259. doi:10.1111/j.1945-5100.1995.tb01124.x.
- ^ Rudnickaitė, Eugenija (2006). "Vilniaus universiteto geologijos muziejaus prie geologijos ir mineralogijos katedros meteoritų kolekcija (iš dangaus nukritęs paveldas)" (PDF). Lietuvos muziejų rinkiniai (in Lithuanian). 5: 74. ISSN 1822-0657.
- ^ Grigelis, Algimantas, ed. (1969). Lietuvos geologija ir profesorius Mykolas Kaveckis (in Lithuanian). Kauno Politechnikos institutas. p. 164. OCLC 253645847.
- ^ Rudnickaitė, Eugenija (2006). "Vilniaus universiteto geologijos ir mineralogijos muziejaus meteoritų kolekcija" (PDF). Geologijos akiračiai (in Lithuanian). 3: 59. ISSN 1392-0006.
- ^ Caillet Komorowski, Catherine L.V. (2006). "The meteorite collection of the National Museum of Natural History in Paris, France". In McCall, Gerald Joseph Home; Bowden, A. J.; Howarth, Richard John (eds.). The History of Meteoritics and Key Meteorite Collections: Fireballs, Falls and Finds. Geological Society of London. p. 198. ISBN 978-1-86239-194-9.
- ^ Zimblienė, Daiva (1 July 2018). "Įvertintos pastangos, kuriant miestelio herbą ir vėliavą" (in Lithuanian). Ukmergės žinios. Retrieved 2 November 2018.