Rifting of Gondwana

[Bob.Hill@xxxxxxxxxxxxxxxxx (Bob Hill)]

At risk of re-opening a discussion on bolides, I have a request for
information regarding the break-up of Gondwana. I have a newspaper clipping
from 1992 in which Michael Rampino is quoted as saying that Asteroid
impacts about 250 million years ago near Tierra del Fuego might have been
the trigger for the subsequent split up of Gondwana. According to the
report this was presented at a meeting of the American Geophysical Union.
Does anyone know whether this has been published? There is a hint of it in
Duncan Steel's (1995) book "Rogue Asteroids and Doomsday Comets", which
made me go searching for the newspaper clipping, but not enough to go on.
This book, by the way, is an excellent presentation of an astronomer's view
of the debate on extraterrestrial impacts.

If no-one has any information on this, can someone send me Michael
Rampino's email address?

Bob Hill
Plant Science
University of Tasmania
Australia