| Obolon' crater | |
|---|---|
  Location of the crater in Ukraine | |
| Impact crater/structure | |
| Confidence | Confirmed |
| Diameter | 20 km (12 mi) |
| Age | 169 ± 7 Ma Middle Jurassic |
| Exposed | No |
| Drilled | Yes |
| Bolide type | Iron meteorite? |
| Location | |
| Coordinates | 49°35′N 32°55′E / 49.583°N 32.917°E |
| Country | Ukraine |
| State | Poltava |
Obolon' crater (Ukrainian: Оболонь) is a 20 km (12 mi) diameter buried meteorite impact crater situated about 200 km (120 mi) southeast of Kyiv in Ukraine (Poltava Oblast).[1][2] The site has been drilled, which revealed the presence of shocked minerals and impact melt rock; the high chlorine content of the latter suggesting that the area was covered by shallow sea at the time of impact.[3] One estimate puts the age at 169 ± 7 million years (Middle Jurassic).[4]
- ^ Masaitis, V. L.; A. N. Danilin; G. M. Karpov & A. I. Raikhlin (1976). "Karla, Obolon' and Rotmistrovka astroblemes in the European part of the USSR". Doklady Akademii Nauk SSSR (in Russian). 230: 174–177.
- ^ Val'ter, A. A.; E. P. Gurov & V. A. Ryabenko (1977). "The Obolon' fossil meteorite crater astrobleme on the northeast flank of the Ukrainian Shield". Doklady Akademii Nauk SSSR (in Russian). 232: 170–173.
- ^ Gurov E.P., Gurova E.P. (1995). "Impact melt composition of the Obolon crater: chlorine as a possible indicator of the submarine crater formation". Meteoritics, v. 30, p 515. Abstract
- ^ "Obolon'". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2017-10-09.