Vista Alegre crater
The Vista Alegre crater is a meteorite crater in Coronel Vivida, Paraná State, Brazil.[1] On the surface it appears as a circular, relatively flat plain within otherwise hilly terrain.
 Landsat image of Vista Alegre crater | |
| Impact crater/structure | |
|---|---|
| Confidence | Confirmed |
| Diameter | 9.5 km (5.9 mi) |
| Age | <65 Ma, or ~115 Ma Paleogene or younger, or Aptian |
| Exposed | Yes |
| Drilled | No |
| Location | |
| Location | Paraná Basin |
| Coordinates | 25°57′S 52°41′W |
| Country | Brazil |
| State | Paraná |
| Municipality | Coronel Vivida |
  Location of the crater in Brazil | |
Description
It is 9.5 kilometres (5.9 mi) in diameter and the age is estimated to be less than 65 million years (Paleocene or younger).[1] More recently, a date of about 115 Ma has been given[2] and closer to the age of Vargeão Dome. Considering the proximity of location, age, and stratigraphic similarities of Vista Alegre and Vargeão, it has been proposed that it was a double impact.[3]
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See also
References
- "Vista Alegre". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2017-10-09.
- A. Crósta, M. Vasconcelos (2013). Update On The Current Knowledge Of The Brazilian Impact Craters, 44th Lunar and Planetary Science Conference (2013)
- A. Crósta, C. Kazzuo-Vieira and A. Schrank (2004). Vista Alegre: A Newly Discovered Impact Crater In Southern Brazil. Extract from the 67th Annual Meteoritical Society Meeting" in 2004.
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