Posted by: Marge Gower | March 8, 2013

Green Lake State Park

 PICT0056Green Lake at Green Lake State Parks has a “dead zone”. This is where there is little oxygen. Fish and other animals can’t survive there. The survival of aquatic bacteria in the lake causes the lake to turn different colors (rosey pinks and purples, for example)These bacteria also produce a sulfurous odor and calcium carbonate. The calcium carbonate  accumulates and settles out in shallow water. This creates whitish “reefs” like the one at Deadman’s Point. The green color of the lake comes from the poorly decomposed organic material in the water. That material reflects light, making the water appear green.



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