The underground rock (and water) scene

Read the recent publication in Frontiers in Geoscience.
March 14, 2022
Photo of Dr. Brandy Toner (center in red) and her colleagues in the Soudan Underground Mine by Jim Essig
Photo of Dr. Brandy Toner (center in red) and her colleagues in the Soudan Underground Mine by Jim Essig.

The deep biosphere is composed of microbial communities that live below the Earth’s surface and survive in unique geochemical niches. A new study led by Dr. Brandy Toner characterizes the water and rock chemistry that supports the microbiology in one such deep environment: the Soudan Underground Mine in northern Minnesota. Read the recent publication in Frontiers in Geoscience.