Gullies on Mars sculpted by dry ice rather than liquid water?

Gullies on Mars sculpted by dry ice rather than liquid water?

Gullies on Mars sculpted by dry ice rather than liquid water?
Astronomy Now, December 23, 2015
https://astronomynow.com/2015/12/23/gullies-on-mars-sculpted-by-dry-ice-rather-than-liquid-water/

Gullies on Mars sculpted by dry ice rather than liquid water
Institut d’Astrophysique Spatiale (CNRS/Université Paris-Sud)
Science Daily, December 22, 2015, http://www2.cnrs.fr/en/2671.htm
http://www.sciencedaily.com/releases/2015/12/151222082255.htm

Pilorget, C., and F. Forget, 2015, Formation of gullies on Mars by
debris flows triggered by CO2 sublimation. Nature Geoscience, 2015;
DOI: 10.1038/ngeo2619
http://www.nature.com/ngeo/journal/v9/n1/full/ngeo2619.html
Meeting abstract: http://www.hou.usra.edu/meetings/lpsc2015/pdf/2471.pdf

Yours,

Paul H.