In a message dated 6/15/2005 6:35:05 PM Mountain Standard Time, mwjohnson at lanl.gov writes: In the recent photos of the major, it is quite obvious that the column from the (presumably) south vent is at least slightly muddy. The Bruce Chase photos show not only a distinct color difference between the two columns, but also some really grungy brown stuff at the base of the right-hand column. I begin this with a " ? " because, although I haven't downloaded all the photos that have been listed as available, those that I have (especially by "Stick") do NOT show the difference cited by Dr. Johnson, except as might be caused by slightly different lighting. Any other takes on the topic? Scott Bryan -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20050616/5694413a/attachment.html>