Some Ancient Mars Lakes Formed Long After Others

Some Ancient Mars Lakes Formed Long After Others

Some ancient Mars lakes formed long after others
http://www.jpl.nasa.gov/news/news.php?feature=6619
https://www.sciencedaily.com/releases/2016/09/160915142043.htm

The paper is:

Wilson, S. A., A. D. Howard, J. M. Moore, and J. A. Grant,
2016 A Cold-Wet Mid-Latitude Environment on Mars
during the Hesperian-Amazonian Transition: Evidence
from Northern Arabia Valleys and Paleolakes. Journal
of Geophysical Research: Planets, 2016; DOI: 10.1002/2016JE005052
http://onlinelibrary.wiley.com/doi/10.1002/2016JE005052/abstract

Another article is:

Mars rover views spectacular layered rock formations
NASA/Jet Propulsion Laboratory, September 12, 2016
https://www.nasa.gov/feature/jpl/mars-rover-views-spectacular-layered-rock-formations
http://thescienceexplorer.com/universe/mars-rover-views-spectacular-layered-rock-formations

Yours,

Paul H.