Middle to Late Paleozoic Atmospheric CO2 Levels from Soil Carbonate and Organic Matter

@article{Mora1996MiddleTL,
  title={Middle to Late Paleozoic Atmospheric CO2 Levels from Soil Carbonate and Organic Matter},
  author={C. Mora and S. Driese and L. A. Colarusso},
  journal={Science},
  year={1996},
  volume={271},
  pages={1105 - 1107}
}
The stable carbon isotope compositions of ancient soil carbonate and coexisting soil organic matter indicate that atmospheric CO2 levels decreased by a factor of 10 during the middle to late Paleozoic era. Proxy measurements of CO2 were made by application of a soil carbonate CO2 paleobarometer to a suite of paleosols that share key physical and chemical characteristics. The estimates agree with theoretical models that imply that a decrease in Paleozoic atmospheric CO2 levels was associated… Expand
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