[meteorite-list] Huge Spirals Found on Mars

[Paul H.]

Huge Spirals Found on Mars—Evidence of New Lava 
Type? Coils hint that volcanoes, not ice, shaped odd red 
planet region. National Geographic, April 26, 2012
http://news.nationalgeographic.com/news/2012/04/120426-mars-new-lava-coils-volcanoes-ice-life-space-science/ 

New form of Mars lava flow dicovered, ScienceDaily
April 26, 2012, http://www.sciencedaily.com/releases/2012/04/120426143804.htm
and http://esciencenews.com/articles/2012/04/26/new.form.mars.lava.flow.dicovered

The press release is:

Graduate Student Discovers New Form of Lava Flow 
on Mars, Arizona State University College
April 25, 2012, http://www.newswise.com/articles/graduate-student-discovers-new-form-of-lava-flow-on-mars

The paper is:

Ryan, A. J., and P. R. Christensen, 2012, Coils and 
Polygonal Crust in the Athabasca Valles Region, Mars, 
as Evidence for a Volcanic History. Science, vol. 336, 
no. 6080, pp. 449-452. http://www.sciencemag.org/content/336/6080/449 

Best wishes,

Paul H.