Sure enough, there were shatter cones, of all sizes, all over Sudbury, including an outcropping on Ramsey Lake Road.
"We were showing them shatter cones and the Onaping fallback breccia.
Meteorite impact suggested by shatter cones in rock, Science 131(3416): 1781-1784.
Evidence of timing of the Serpent Mound impact event from shatter cones. Ohio J Sci.
Recent field excursions along the eastern flank of the Serpent Mound central uplift have uncovered shatter cones in structurally-deformed, fissile black shale exposed along the southern side of an eastward-flowing stream (at 39 [degrees] 2' 4.3" N; 83 [degrees] 23' 48.4" W).
This is the first time that shatter cones have been identified in Upper Devonian strata.