Vista Alegre crater

Vista Alegre crater
Landsat image of Vista Alegre crater
Impact crater/structure
ConfidenceConfirmed
Diameter9.5 km (5.9 mi)
Age<65 Ma, or ~115 Ma
Paleogene or younger, or Aptian
ExposedYes
DrilledNo
Location
LocationParaná Basin
Coordinates25°57′S 52°41′W / 25.950°S 52.683°W / -25.950; -52.683
CountryBrazil
StateParaná
MunicipalityCoronel Vivida
Vista Alegre crater is located in Paraná
Vista Alegre crater
Location of the crater in Brazil
Vista Alegre crater is located in Brazil
Vista Alegre crater
Vista Alegre crater (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.

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]

See also

References

  1. ^ a b "Vista Alegre". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. 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.