Controls on Mo isotope fractionations in a Mn-rich anoxic marine sediment, Gullmar Fjord, Sweden

Molybdenum isotopes have emerged as an important tool for determining the spatial extent of past ocean redox conditions. However, our understanding of Mo cycling and associated isotopic fractionations in modern and ancient continental margin sediments is limited, restricting attempts to fully utilize the potential of Mo isotopes. This is particularly the case with regard to the relative significance of Mo isotope fractionations associated with...