[Sloth]

"I can't think of any mechanism related to volcanic activity that would change that river's color," said Jon Major, a hydrologist with the U.S. Geological Survey's Cascades Volcano Observatory in Vancouver, Wash.

Well, obviously if he can't think of one, it cannot exist.

[aimhigh]

Well, obviously if he can't think of one, it cannot exist.

The best quote from the first eruption was from a geologist. He said the first eruption cause 10,000 years of geologic change. Us "short earthers" just smiled.

[hyperpoly8]

A liquified high temperature carbonate gas could do this, if it was released near the surface along many tiny fissures. But the area isn't known for that type (Carbonatite) of rock. The geologist didn't say it couldn't happen, just that he couldn't think of a mechanism for it.