The creation of the sulfur springs, came from a weak spot in the crust of the enormous collapsed crater creating an upheaval of lava 410,000 years ago. The water located at the center of the springs boils at roughly 340 Fahrenheit (170 Celsius) creating large plumes of steam. The water coming out of the spring is blackened by a chemical reaction between the high content of sulfur and iron. The spring water also contains large deposits of copper, iron oxide, alkaline lead, calcium oxide, and carbon.
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