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October 21, 2020, 7:19 am UTC    
August 06, 2020 07:51PM
Early Mars was covered in ice sheets, not
flowing rivers, researchers say
University of British Columbia, August 3, 2020
[www.sciencedaily.com]

Summary:

"A large number of the valley networks scarring
Mars's surface were carved by water melting
beneath glacial ice, not by free-flowing rivers
as previously thought, according to new research.'

Grau Galofre, A., Jellinek, A.M. & Osinski, G.R,.
2020, Valley formation on early Mars by
subglacial and fluvial erosion. Nature
Geoscience, 2020
[www.nature.com]

Other recent papers:

Shaw, J., Gilbert, R.G., Sharpe, D.R., Lesemann,
J.E. and Young, R.R., 2020. The origins of s-forms:
Form similarity, process analogy, and links to
high-energy, subglacial meltwater flows.
Earth-Science Reviews, 200, p.102994.
[www.sciencedirect.com]

Rodriguez, J.A.P., Dobrea, E.N., Kargel, J.S., Baker,
V.R., Crown, D.A., Webster, K.D., Berman, D.C.,
Wilhelm, M.B. and Buckner, D., 2020. The Oldest
Highlands of Mars May Be Massive Dust Fallout
Deposits. Scientific reports, 10(1), pp.1-15 .Open Access
[www.nature.com]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)
Subject Author Posted

Did subglacial meltwater create Martian channels and valleys?

Paul H. August 06, 2020 07:51PM



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