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

被引：3
|
作者：
Schaller, Morgan F. [1 ]
Wright, James D. [1 ]
Kent, Dennis V. [1 ,2 ]
机构：
[1] Rutgers State Univ, Piscataway, NJ 08854 USA
[2] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
来源：
SCIENCE | 2011年 / 334卷 / 6056期
基金：
美国国家科学基金会;
关键词：
TRIASSIC-JURASSIC BOUNDARY; CARBON-CYCLE; MASS EXTINCTION; DIOXIDE; OCEAN; CO2;
D O I：
10.1126/science.1209422
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：
Rampino and Caldeira argue that the first pulse of the Central Atlantic Magmatic Province would increase the concentration of atmospheric carbon dioxide (Pco(2)) by only 400 parts per million if erupted over 20,000 years, whereas we observed a doubling within this interval. In the absence of any data to the contrary, we suggest that a more rapid (<= 1000-year) eruption is sufficient to explain this observation without relying on thermogenic degassing.
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