[Geology2] 'Fossil' Mountains Entombed by Ice

Wow . . .

'Fossil' Mountains Entombed by Ice

Buried deep beneath East Antarctica's ice sheet, the Gamburtsev
Mountains
are the world's most invisible range. New research suggests that
overlying
ice like that hiding them from view today could have preserved their
rugged
topography for the past 300 million years.
The work bolsters the counterintuitive notion that glaciers, rather than
just carving down young peaks into eroded hills like a buzzsaw, could
sometimes protect high jagged terrain.

"It's feasible for topography to be preserved," says Stephen Cox, a
graduate student at Caltech and coauthor of a paper scheduled to appear
in
Geophysical Research Letters. A supercold cap of ice could have allowed
the ancient Gamburtsevs to look like the Alps instead of the highly
eroded
Appalachians.

Read more:
http://ow.ly/2VNga

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