More Evidence of Ancient Oceans on Mars ???
Nature News, June 13, 2010.
Di Achille, G., and B. M. Hynek, 2010, Ancient ocean on Mars
supported by global distribution of deltas and valleys. Nature
Geoscience. Published online: 13 June 2010 | doi:10.1038/ngeo891
Also, there are:
Di Achille, G., and B. M. Hynek, 2009, Possible Primordial Oceans
on Mars: Evidence from the Global Distribution of Ancient Deltas?
40th Lunar and Planetary Science Conference, (Lunar and Planetary
Science XL), held March 23-27, 2009 in The Woodlands, Texas, id.1977
Di Achille, G., and B. M. Hynek, 2010, The Case of an Integrated Global
Hydrosphere on Early Mars: Clues from the Distribution of Ancient
Deltas and Valley Networks. 41st Lunar and Planetary Science Conference,
held March 1-5, 2010 in The Woodlands, Texas. LPI Contribution
No. 1533, p.2366
Another paper is:
Fassett, C. I., and J. W. Head, III, 2008, Valley network-fed, open-basin
lakes on Mars: Distribution and implications for Noachian surface and
subsurface hydrology. Icarus. vol. 198, pp. 37–56.
PDF file at http://www.planetary.brown.edu/pdfs/3601.pdf