Shatter cone: Difference between revisions

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(→‎Etymology of German Name: PIE root of 'Strel'.)
Shatter cones can range in size from microscopic to several meters. The largest known shatter cone in the world (more than 10 metres in length) is located at the [[Slate Islands (Ontario)|Slate Islands]] in Terrace Bay, Ontario, Canada. The azimuths of the cones' axes typically radiate outwards from the point of impact, with the cones pointing upwards and toward the center of the impact crater, although the orientations of some of the rocks have been changed by post-cratering geological processes at the site.
 
==Etymology of German Name ''Strahlenkalk''==
The evocative original German names for these structures - ''Strahlenkalk'' (= "radiating-chalk") and ''Strahlenkegel'' (= "radiating cone") - incorporate the word ''strahl'', "ray" / "beam" of ancient Indo-European provenance, cognate with [[Old English]] ''stræl'', "arrow" and [[Russian language|Russian]] стрельцы (''streltsy''), "archers", the reconstructed Proto-Indo-European form being *strēl- ("arrow") itself from the root *ster-, *strē- ("strip, stripe, line, streak, stream, arrow"). <ref>Google translate: German to English, retrieved 10.30 on 22/7/20.</ref><ref> https://en.wiktionary.org/wiki/Reconstruction:Proto-Germanic/strēlō Retrieved at 11.17am on 22/7/20.</ref>