Comment on "Atmospheric PCO2 Perturbations Associated with the Central Atlantic Magmatic Province"

被引：6
|
作者：
Rampino, Michael R. [1 ,2 ,3 ]
Caldeira, Ken [4 ]
机构：
[1] NYU, Dept Biol, New York, NY 10003 USA
[2] NYU, Environm Studies Program, New York, NY 10003 USA
[3] NASA, Goddard Inst Space Studies, New York, NY 10025 USA
[4] Carnegie Inst, Dept Global Ecol, Stanford, CA 94305 USA
来源：
SCIENCE | 2011年 / 334卷 / 6056期
基金：
美国国家科学基金会;
关键词：
CARBON-DIOXIDE; BOUNDARY; METHANE; END;
D O I：
10.1126/science.1208653
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Schaller et al. (Research Article, 18 March 2011, p. 1404) proposed that carbon dioxide (CO2) released by the Central Atlantic Magmatic Province eruptions over periods of about 20,000 years led to substantial increases of up to 2000 parts per million (ppm) in the concentration of atmospheric carbon dioxide (Pco(2)) near the Triassic-Jurassic boundary. Use of an atmosphere-ocean model coupled to a carbon-cycle model predicts Pco(2) increases of less than 400 ppm from magmatic volatiles, with only a small climatic impact.
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