Sedimentary constraints on the duration of the Marinoan Oxygen-17 Depletion (MOSD) event.


The ~635 Ma Marinoan glaciation is marked by dramatic Earth system perturbations. Deposition of nonmass-dependently (17)O-depleted sulfate (SO4(2-)) in worldwide postglacial sediments is, thus far, unique to this glaciation. It is proposed that an extremely high-pCO2 atmosphere can result in highly (17)O-depleted atmospheric O2, or the Marinoan Oxygen-17… (More)
DOI: 10.1073/pnas.1213154110


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