Santa Marta crater

Santa Marta crater is a newly confirmed impact crater in Piauí State, northeastern Brazil.[1] It is 10 km in diameter and it is estimated to have formed 66-100 Ma during the Late Cretaceous.

Its impact origin was first proposed by S. Master and J. Heymann in 2000 based primarily on satellite remote sensing data[2] and was confirmed more than a decade later after conclusive evidence of shock metamorphism such as breccia and shatter cones were found.[3]

See also

References

  1. ↑ "SantaMarta". Earth Impact Database. University of New Brunswick. Retrieved 2016-05-25.
  2. ↑ Master, S.; Heymann, J (2000). A Possible New Impact Structure near Gilbués in Piauí Province, Northeastern Brazil, Meteoritics & Planetary Science, vol. 35, Supplement, p.A105
  3. ↑ A. P. Crósta and M. A. Vasconcelos (2013). Confirmation Of The Impact Origin Of The Santa Marta Crater, Brazil, 76th Annual Meteoritical Society Meeting

Coordinates: 10°10′S 45°15′W / 10.167°S 45.250°W / -10.167; -45.250


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