Astronomy: General

A Dictionary of Earth Sciences A Dictionary of Astronomy Further reading

shatter cones

A Dictionary of Earth Sciences | 1999 | | Copyright

shatter cones Striated, conical, nested fracture pattern that has apparently occurred in response to shock waves of the magnitude (20–250 kb) generated by a meteorite impact. Individual cone shapes may vary from less than a centimetre to several metres in size. The apices of the cones tend to point towards the centre of impact. Shatter cones were first discovered by R. S. Dietz in the 1940s and have been observed at many postulated impact crater sites, e.g. the Sudbury Structure, Ontario, Canada; the Ries and Steinheim Basins, southern Germany; and Gosses Bluff, Australia.

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AILSA ALLABY and MICHAEL ALLABY. "shatter cones." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "shatter cones." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O13-shattercones.html

AILSA ALLABY and MICHAEL ALLABY. "shatter cones." A Dictionary of Earth Sciences. 1999. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-shattercones.html

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shatter cone

A Dictionary of Astronomy | 1997 | Copyright

shatter cone A ridged, cone-shaped rock fragment produced when strong shock waves, resulting from the impact of a large meteorite, pass through certain types of rock. The shock waves produce weakened zones radiating out from the direction of shock, causing shatter cones, which are later revealed when the shocked layers are exposed by erosion.

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"shatter cone." A Dictionary of Astronomy. 1997. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>.

"shatter cone." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O80-shattercone.html

"shatter cone." A Dictionary of Astronomy. 1997. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-shattercone.html

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