Vista Alegre crater

Vista Alegre crater
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 / 25.950°S 52.683°W / -25.950; -52.683Coordinates: 25°57′S 52°41′W / 25.950°S 52.683°W / -25.950; -52.683
Country  Brazil
State Paraná
Municipality Coronel Vivida
Location of the crater in Brazil

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.

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]

See also

References

  1. 1 2 "Vista Alegre". Earth Impact Database. University of New Brunswick. Retrieved 2017-10-09.
  2. ↑ A. Crósta, M. Vasconcelos (2013). Update On The Current Knowledge Of The Brazilian Impact Craters, 44th Lunar and Planetary Science Conference (2013)
  3. ↑ 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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