As list owner I've been watching with some interest the development of contributions triggered by Ethan Sudman's request for a debate on plate tectonics and the subsequent information that Ethan was involved with, and sympathetic to, a creationist view of the world. The Geo-tectonics list is not moderated (or to be more pejorative, censored) but, as list owner, I've had enough emails over the years to be aware of the sensitivities of members to traffic that strays off the point of the list. Consequently, I'd assert that Geo-tectonics isn't the place to debate the merits of creationism versus plate tectonics, evolution or any other world view. However, that's rather avoiding the point of Ethan's original request, which was for some discussion on plate tectonics from people who would presumably consider themselves to be extremely knowledgable in that field. Some of the initial responses were very much in that spirit and I for one was grateful to read the contributions to a virtual reading list. Whether my students will be quite so impressed next semester remains to be seen. Al McGrew, whilst certainly not avoiding the creationism issue, gave a great summary of how plate motions have stood up to recent detailed scrutiny. Let's remember that, in making his original request, Ethan said that he wanted to listen and learn, so if we want this thread to continue, lets try to give him some hard science to think about. If anyone wants to engage in a full blown creationist debate then I think perhaps Ethan's own web- based messaging board could be a better place to do it. Have a good weekend John ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ John Whalley Lecturer in Structural Geology and Computer Applications in Geology List owner - geo-tectonics (http://www.jiscmail.ac.uk/lists/geo-tectonics.html) Tel +44 23 9284 2247 Fax +44 23 9284 2244 School of Earth and Environmental Sciences University of Portsmouth Portsmouth, PO1 3QL, UK Email- [log in to unmask] ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++