Hickman Crater

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The Hickman Crater is a recently discovered probable meteorite impact crater, 16 kilometres northeast of the Hope Downs 4 Mine and 35 kilometres north of Newman in the Ophthalmia Range, Western Australia. It was discovered by Arthur Hickman, a government geologist with the Geological Survey of Western Australia, in July 2007.[1] The discovery was made by chance while browsing Google Earth.[2]

The crater is about 260 metres (853 ft) wide and 30 metres (98 ft) deep, and is thought to be between 10,000 and 100,000 years old, though new research suggests it may be around 50,000 years.[3] Elevated levels of siderophiles in the structure such as iridium and palladium have been found.[3] It is estimated that the meteorite was between 10 metres (33 ft) and 15 metres (49 ft) in diameter when it impacted the ground.[2]

References[edit]

  1. ^ Glikson, A.Y.; Hickman, A.H. and Vickers, J. (2008). Hickman Crater, Ophthalmia Range, Western Australia: evidence supporting a meteorite impact origin. Australian Journal of Earth Sciences, Vol. 55(8), pp. 1107 – 1117.
  2. ^ a b Hutcheon, Stephen (25 March 2008). "Sudden impact: Google unearths rare meteorite crater". The Age. Melbourne. Retrieved 16 December 2016. 
  3. ^ a b K. McGhee (2015). Hickman Crater in Western Australia, Australian Geographic

External links[edit]

Coordinates: 23°2′13.4″S 119°40′59.3″E / 23.037056°S 119.683139°E / -23.037056; 119.683139