Mud Volcano and Sulphur Caldron
by Teresa Zieba
Title
Mud Volcano and Sulphur Caldron
Artist
Teresa Zieba
Medium
Photograph - Photography
Description
The thermal features at Mud Volcano and Sulphur Caldron are primarily mud pots and fumaroles because the area is situated on a perched water system with little water available. Fumaroles or �steam vents� occur when the ground water boils away faster than it can be recharged. Also, the vapors are rich in sulfuric acid that leaches the rock, breaking it down into clay. Because no water washes away the acid or leached rock, it remains as sticky clay to form a mud pot. Hydrogen sulfide gas is present deep in the earth at Mud Volcano. As this gas combines with water and the sulfur is metabolized by cyanobacteria, a solution of sulfuric acid is formed that dissolves the surface soils to create pools and cones of clay and mud. Along with hydrogen sulfide, steam, carbon dioxide, and other gases explode through the layers of mud.
Located in Yellowstone National Park, Wyoming, USA
Yellowstone National Park is recognized as a UNESCO World Heritage Site - Ref: 28
.
Uploaded
February 2nd, 2012
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