Quote Originally Posted by HDNitehawk


Quote Originally Posted by neuroanatomist
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It's mineral salts, so probably should not be snow-white...
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True that, I thought it was normal ice. I saw the picture on another screen and my screen just is way too warm and has an annoying greenish hue about it.



Quote Originally Posted by HDNitehawk


If I understand right it is calcium carbonate that is pushed to the surface through limestone. The structue of the springs is continualy growing and changing and it has over taken this tree and others. It is also my understanding that the diffrent orange and brown colors in this photo, and other colers you see in formations at yellowstones springs and geysers, is the result of bacteria growing in the wet areas. The bacteria change color depending on how hot the water is. The orange you see in part of the picture is hotter than the brown in the lower areas, changing the color of the bacteria.

Thanks for the national geographic part [] I enjoy it.


Thanks guys