Secular increase in nutrient levels through the Phanerozoic; implications for productivity, biomass, and diversity of the marine biosphere

@article{Martin1996SecularII,
  title={Secular increase in nutrient levels through the Phanerozoic; implications for productivity, biomass, and diversity of the marine biosphere},
  author={Ronald E. Martin},
  journal={PALAIOS},
  year={1996},
  volume={11},
  pages={209-219}
}

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