A 2-billion-year-old rock in South Africa has yielded an incredible discovery: living microbes trapped within its sealed fractures.
  • booly@sh.itjust.works
    1·
    9 days ago

    one that eats sulfur and excretes iron, and one that eats iron and excretes sulfur

    Thermodynamically, how could these two cycles sustain metabolism? Were there other processes/species in the mix to introduce chemical compounds that had more energy contained within?