Sunday, November 16, 2014

Detail from Avoca Spring

Yellowstone National Park is one of the best known and largest geothermal areas in the world. It is know for its geysers and thermal pools or hot springs. This is a detail from a previous photo. The edges of the pools show mineral deposits made by the superheated water. The coloration of the spring depends on its depth and the amount of minerals and the organisms in the water called extremozymes.

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