I was thinking of a loosely packed solid of one or several compounds floating in a liquid of another...

In a place with lower gravity and denser atmosphere I would expect that lower density 'glaciers' would be formed.... Anyways, I NEVER claimed I was making a scientific observation, I heavily qualified it and made a point of saying I was not educated in the subject- All I said is it really looked similar to icebergs forming from other ice sheets here on Earth, which as I also said is a totally different planet...

I am not one of those that gets terribly invested in a concept unless I KNOW without a doubt that I am right, When I know something _without a doubt_ I ALWAYS have been right (Usually takes much data to make me feel right 'without a doubt')

I will look up the density of the various compunds at that temperature and see if it makes any sense... if it doesnt I will easily and happily admit my suggestion was totally wrong... anyway I would not EVER call my idea a theory, or even a hypothesis, it is just the musing of mine trying to make geological sense of what I see using (and this is the likely flaw) Earth as an example...

Quite frankly I dont care that much if I am stunningly wrong, I am enjoying the pictures too much...

I envy those that are doing the real work on this project, even though it most likely means many sleepless nights