Glacierless worlds

From: Logan Kearsley (chrono.surfer_at_verizon.net)
Date: 02/18/05 

Date: Fri, 18 Feb 2005 01:05:37 GMT

So I'm designing a world where the thallasogen is ammonia rather than water.
Since ammonia is denser as a solid than as a liquid, it won't tend to melt
when compressed, so large piles of ammonia snow won't cement themselves into
solid sheets. Ergo, no glaciers.

I think I've got a pretty good grasp of what that means I'll be leaving off
of the world map- no glacier-carved plains or lakes, no fjords. But I'm
nowhere near an expert on this sort of thing, so any help here would be
appreciated.

Additionally, I have not the slightest clue how a large pile of ammonia snow
/would/ behave. Might I end up with seasonal 'powder rivers' that carve
features in the landscape? I don't know. So, some ideas of what sorts of
features I would end up with as a replacement for glacier-derived ones would
also be even more appreciated.

-l.
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