Goat Paddock crater

Goat Paddock is a 5 km-diameter near-circular bowl-shaped depression in a range of gently dipping Proterozoic sandstone in the Kimberley Region of northern Western Australia, 106 km west-southwest of Halls Creek. It is interpreted as an ancient meteorite impact crater, the evidence including breccia containing melted rocks, silica glass, shatter cones and shocked quartz.Harms J.E., Milton D.J., Ferguson J., Gilbert D.J., Harris W.K. & Goleby B. 1980. Goat Paddock cryptoexplosion crater, Western Australia. Nature 286, 704–706. [http://www.nature.com/nature/journal/v286/n5774/abs/286704a0.html Abstract] ] ,Milton D.J. & Macdonald F.A. 2005. Goat Paddock, Western Australia: an impact crater near the simple – complex transition. Australian Journal of Earth Sciences 52, 691–698. [http://journalsonline.tandf.co.uk/link.asp?id=k548v736q175081g Abstract] ] Drilling shows that the crater is filled with about 200 m of ancient lake sediments containing Early Eocene pollen, this age thus giving a minimum estimate for the age of the crater itself. ] The crater is not perfectly circular, but slightly elongated in a north–south direction, suggesting that the projectile struck at low anglefrom either the north or south.

References

External links

[http://www.unb.ca/passc/ImpactDatabase/images/goat-paddock.htm Goat Paddock] at "Earth Impact Database", retrieved 24 March 2007.