Paleoclimate researchers Alexandra Auderset and Alfredo Martínez-García (IMAGE)
Caption
Paleoclimate researchers Alexandra Auderset and Alfredo Martínez-García were able to deduce the oxygen content of the oceans in the past from the remains of microorganisms found in marine sediment. They determined the nitrogen isotope ratios in their laboratory, as part of a long-term collaboration with Daniel Sigman and his research group at Princeton University.
Credit
Simone Moretti, MPI for Chemistry
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License
CC BY