Transient Middle Eocene Atmospheric CO2 and Temperature Variations

被引：166

作者：

Bijl, Peter K. ^{[1
]}

Houben, Alexander J. P. ^{[1
]}

Schouten, Stefan ^{[2
]}

Bohaty, Steven M. ^{[3
]}

Sluijs, Appy ^{[1
]}

Reichart, Gert-Jan ^{[4
]}

Damste, Jaap S. Sinninghe ^{[2
,4
]}

Brinkhuis, Henk ^{[1
]}

机构：

[1] Univ Utrecht, Palaeobot & Palynol Lab, Fac Sci, Inst Environm Biol, NL-3584 CD Utrecht, Netherlands

[2] NIOZ Royal Netherlands Inst Sea Res, Dept Marine Organ Biogeochem, NL-1790 AB Den Burg, Texel, Netherlands

[3] Univ Southampton, Natl Oceanog Ctr, Sch Ocean & Earth Sci, Southampton SO14 3ZH, Hants, England

[4] Univ Utrecht, Fac Geosci, Dept Earth Sci, NL-3584 CD Utrecht, Netherlands

来源：

SCIENCE | 2010年 / 330卷 / 6005期

关键词：

OLIGOCENE CLIMATE TRANSITION; CARBON-DIOXIDE; PALEOGENE; PACIFIC; GREENHOUSE; TRENDS; OCEAN; TOOL;

D O I：

10.1126/science.1193654

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：

The long-term warmth of the Eocene (similar to 56 to 34 million years ago) is commonly associated with elevated partial pressure of atmospheric carbon dioxide (pCO(2)). However, a direct relationship between the two has not been established for short-term climate perturbations. We reconstructed changes in both pCO(2) and temperature over an episode of transient global warming called the Middle Eocene Climatic Optimum (MECO; similar to 40 million years ago). Organic molecular paleothermometry indicates a warming of southwest Pacific sea surface temperatures (SSTs) by 3 to 6 degrees C. Reconstructions of pCO(2) indicate a concomitant increase by a factor of 2 to 3. The marked consistency between SST and pCO(2) trends during the MECO suggests that elevated pCO(2) played a major role in global warming during the MECO.

引用

页码：819 / 821

页数：3

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[1] When and where did India and Asia collide? [J].