Publication Abstracts

Caldeira and Rampino 1990

Caldeira, K., and M.R. Rampino, 1990: Carbon dioxide emissions from Deccan volcanism and a K/T boundary greenhouse effect. Geophys. Res. Lett., 17, no. 9, 1299-1302, doi:10.1029/GL017i009p01299.

A greenhouse warming caused by increased emissions of carbon dioxide from the Deccan Traps volcanism has been suggested as the cause of the terminal Cretaceous extinctions on land and in the sea. We estimate total eruptive and noneruptive CO2 output by the Deccan eruptions (from 6 to 20×1016 moles) over a period of several hundred thousand years based on best estimates of the CO2 weight fraction of the original basalts and basaltic melts, the fraction of CO2 degassed, and the volume of the Deccan Traps eruptions. Results of a model designed to estimate the effects of increased CO2 on climate and ocean chemistry suggest that increases in atmospheric pCO2 due to Deccan Traps CO2 emissions would have been less than 75 ppm, leading to a predicted global warming of less than 1°C over several hundred thousand years. We conclude that the direct climate effects of CO2 emissions from the Deccan eruptions would have been too weak to be an important factor in the end-Cretaceous mass extinctions.

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BibTeX Citation

@article{ca02220m,
  author={Caldeira, K. and Rampino, M. R.},
  title={Carbon dioxide emissions from Deccan volcanism and a K/T boundary greenhouse effect},
  year={1990},
  journal={Geophys. Res. Lett.},
  volume={17},
  number={9},
  pages={1299--1302},
  doi={10.1029%2FGL017i009p01299},
}

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RIS Citation

TY  - JOUR
ID  - ca02220m
AU  - Caldeira, K.
AU  - Rampino, M. R.
PY  - 1990
TI  - Carbon dioxide emissions from Deccan volcanism and a K/T boundary greenhouse effect
JA  - Geophys. Res. Lett.
VL  - 17
IS  - 9
SP  - 1299
EP  - 1302
DO  - 10.1029%2FGL017i009p01299
ER  -

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