Did subglacial meltwater create Martian channels and valleys?

[Oxytropidoceras]

The below article is discouraging as far as the

possibility of Martian fossils.

 

Early Mars was covered in ice sheets, not

flowing rivers, researchers say

University of British Columbia, August 3, 2020

 

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

 

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.

 

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

 

Yours,

 

Paul H.