Re: [meteorite-list] 'Chevrons' Are Not Evidence Of Megatsunamis

2009-05-01 Thread lebofsky
Hi All: Why can't these chevrons in the Mars picture just be typical sand dunes? I happened to look at the whole picture and the lower features that look like boomerangs are called barchans and are caused by wind. I happened to actually use this picture at a workshop last week! The wind blows the

Re: [meteorite-list] 'Chevrons' Are Not Evidence Of Megatsunamis

2009-05-01 Thread Darren Garrison
Here's a great photo of a group of chevrons: http://www.flickr.com/photos/badastronomy/3432647881/sizes/o/ Must have been one hell of a tsunami. http://blogs.discovermagazine.com/badastronomy/page/8/ __ http://www.meteoritecentral.com Meteorite-list ma

Re: [meteorite-list] 'Chevrons' Are Not Evidence Of Megatsunamis

2009-05-01 Thread E.P. Grondine
ndicators > of such events. > > Takes a long time and the accumulation of lots > of evidence, more than we have now, probably. > Time (but not geologic time) will tell. > > > Sterling K. Webb > -------------------- > - Or

Re: [meteorite-list] 'Chevrons' Are Not Evidence Of Megatsunamis

2009-05-01 Thread Sterling K. Webb
009 3:58 PM Subject: Re: [meteorite-list] 'Chevrons' Are Not Evidence Of Megatsunamis Hi Paul, all - A rather cryptic article, but then one might think that these researchers may have considered another hypothesis, that yet another impact mega-tsunami occured. I suppose this

Re: [meteorite-list] 'Chevrons' Are Not Evidence Of Megatsunamis

2009-05-01 Thread E.P. Grondine
Hi Paul, all - A rather cryptic article, but then one might think that these researchers may have considered another hypothesis, that yet another impact mega-tsunami occured. I suppose this belongs with Keller's latest results as well. But then denial is not simply a river in Egypt. E.P. G

[meteorite-list] 'Chevrons' Are Not Evidence Of Megatsunamis

2009-04-30 Thread Paul
Past Tsunamis? Contrary To Recent Hypothesis, 'Chevrons' Are Not Evidence Of Megatsunamis, Science Daily, April 30, 2009, http://www.sciencedaily.com/releases/2009/04/090429091637.htm Contrary to recent hypothesis, 'chevrons' are not evidence of megatsunamis by Vince Stricherz, University of W