Linda Grashoff's Photography Adventures

Evidence of Sulfur Bacteria in the Vermilion River


October 21, 2014

I saw something at the edge of the river Saturday, September 27, that I’d never seen before. Checking my hunch with Norrie Robbins, my knowledge source for all things microbial, I learned that this white threadlike formation is evidence of sulfur-oxidizing bacteria. The black stuff around the edges shows the presence of sulfur-reducing bacteria. Since the shale in this area is replete with pyrite (fool’s gold), and pyrite is made of iron and sulfur, it should not have been a surprise.

09272014 Schoepfle Garden-88

2 responses

  1. …and it’s so wonderfully arranged.

    Like

    October 21, 2014 at 7:44 AM

  2. Sometimes we’re lucky, eh? Thanks for writing, Ken.

    Like

    October 22, 2014 at 11:10 AM

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