A bewildering form of sand dune discovered on Mars NASA/Jet Propulsion Laboratory, June 30, 2016 https://www.sciencedaily.com/releases/2016/06/160630150235.htm http://astronomy.com/news/2016/06/strange-ripples-found-on-mars
"Some of the wind-sculpted sand ripples on Mars are a type not seen on Earth, and their relationship to the thin Martian atmosphere provides new clues about the atmosphere's history." The paper is: Lapotre, M. G. A. , R. C. Ewing, M. P. Lamb, W. W. Fischer, J. P. Grotzinger, D. M. Rubin, K. W. Lewis, M. J. Ballard, M. Day, S. Gupta, S. G. Banham, N. T. Bridges, D. J. Des Marais, A. A. Fraeman, J. A. Grant, K. E. Herkenhoff, D. W. Ming, M. A. Mischna, M. S. Rice, D. A. Sumner, A. R. Vasavada, and R. A. Yingst, 2016, Large wind ripples on Mars: A record of atmospheric evolution. Science, 2016 DOI: 10.1126/science.aaf3206 http://science.sciencemag.org/content/353/6294/55 Other articles: Debris flows on Arctic sand dunes are similar to dark dune spot-seepage flows on Mars, Southwest Research Institute https://www.sciencedaily.com/releases/2013/09/130906114258.htm Curiosity update, sols 1218-1249: Digging in the sand at Bagnold Dunes By Emily Lakdawalla http://www.planetary.org/blogs/emily-lakdawalla/2016/02100935-curiosity-update-sols-1218-1249.html Yours, Paul H. ______________________________________________ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] https://pairlist3.pair.net/mailman/listinfo/meteorite-list
