Naked Science Forum

Non Life Sciences => Geology, Palaeontology & Archaeology => Topic started by: MarsDog on 08/04/2006 06:22:47

Title: What ice mountain height would a base at liquid nitrogen temperature support?
Post by: MarsDog on 08/04/2006 06:22:47

I am trying to figure out maximum height a given diameter base
can support, cooled to liquid nitrogen temperature.

Cannot find strain rate data for ice at very low temperatures and high pressures, into the TPa range.

Can the 1 : 1 1/2 max stable slope of sand dunes be used ?

Resulting shape parabolic as in ice fields ?

Exponential taper as in scale height ?

Title: Re: What ice mountain height would a base at liquid nitrogen temperature support?
Post by: JimBob on 14/04/2006 00:22:23

Temp has little to do with Ice. It will flow in 70 F below 0. (Antartica) This is because of pin-point pressure "melting" within the crystal structure of the ice. I do not know about physical properties of ice in another planetary system but suspect it very much is the same. Ice (H2O) ridges on moons of outer planets show the same behavior I would expect on earth.

Sand MAY NOT be used. Totally different properties. Use the strain data you have for terristrial conditions. Find out from NASA or JPL what data they have.

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