a little more.
Earth’s volcanism linked to meteorite impacts
Kate Ravilious
14:31 13 December 02
New Scientist
http://www.newscientist.com/news/news.jsp;jsessionid=MBJHENLAMHGN?id=ns99993171
Any chance Chicxulub and Shiva are concurrent markers of a whole-earth pass-through (e.g. or i.e., small black hole)?