Shatter cone: Difference between revisions

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(Etymology of the German word "Strahlenkalk" seems irrelevant - this is English Wikipedia; perhaps put in German Wikipedia's article instead (with sources better than Google Translate and Wiktionary)?)
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[[Image:Shattercone_Wengenhausen.JPG|thumb|right|Typical shatter cone from Ries impact crater, Germany.]]
'''Shatter cones''' are rare geological features that are only known to form in the [[bedrock]] beneath [[meteorite]] [[impact crater]]s or [[Underground nuclear testing|underground nuclear explosions]]. They are evidence that the rock has been subjected to a shock with pressures in the range of {{convert|2|GPa|psi|abbr=on}}–{{convert|-30|GPa|psi|abbr=on}}.<ref name=French1998>{{cite book
| author = French, B.M.
| date = 1998