Thanks decimon for the topic and ping, and thanks neverdem for sending the link in FReepmail. I really got right after that and posted it, didn’t I? ;’)
http://www.sciencedaily.com/releases/2009/01/090107085320.htm
http://www.freerepublic.com/focus/news/805952/posts
http://www.newscientist.com/news/news.jsp?id=ns99993171
http://www.lpl.arizona.edu/~jmelosh/ImpactVolcanism.pdf
thanks, bfl