[meteorite-list] Did subglacial meltwater create Martian channels and valleys?

From: Paul <etchplain_at_meteoritecentral.com>
Date: Thu, 6 Aug 2020 20:04:51 -0500
Message-ID: <8a1d2a86-6129-ec6e-fe7b-53eaffbdf3de_at_att.net>

Early Mars was covered in ice sheets, not

flowing rivers, researchers say

University of British Columbia, August 3, 2020



"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



Paul H.

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