Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-017-0003-6 |
Potential links between continental rifting, CO2 degassing and climate change through time | |
Brune, Sascha1,2; Williams, Simon E.3; Mueller, R. Dietmar3,4 | |
2017-12-01 | |
发表期刊 | NATURE GEOSCIENCE
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ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Australia |
英文摘要 | The concentration of CO2 in the atmosphere is a key influence on Earth's climate. Today, significant quantities of CO2 are emitted at continental rifts, suggesting that the spatial and temporal extent of rift systems may have influenced deep carbon fluxes and thus climate change throughout geological time. Here we test this hypothesis by conducting a worldwide census of continental rift lengths over the last 200 million years. We estimate tectonic CO2 release rates through time and show that along the extensive Mesozoic and Cenozoic rift systems, rift-related CO2 degassing rates reached more than 300% of present-day values. Using a numerical carbon cycle model, we find that two prominent periods of enhanced rifting 160 to 100 million years ago and after 55 million years ago coincided with greenhouse climate episodes, during which atmospheric CO2 concentrations were more than three times higher than today. We therefore propose that continental fragmentation and long-term climate change could plausibly be linked via massive CO2 degassing in rift systems. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416858000017 |
WOS关键词 | CARBON-CYCLE ; ANTARCTIC GLACIATION ; TECTONIC CONTROLS ; PLATE KINEMATICS ; ATMOSPHERIC CO2 ; BREAK-UP ; FLUXES ; GONDWANA ; AFRICAN ; MODEL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34737 |
专题 | 地球科学 气候变化 |
作者单位 | 1.GFZ German Res Ctr Geosci, Potsdam, Germany; 2.Univ Potsdam, Inst Earth & Environm Sci, Potsdam, Germany; 3.Univ Sydney, Sch Geosci, EarthByte Grp, Sydney, NSW 2006, Australia; 4.Univ Sydney, Sydney Informat Hub, Sydney, NSW, Australia |
推荐引用方式 GB/T 7714 | Brune, Sascha,Williams, Simon E.,Mueller, R. Dietmar. Potential links between continental rifting, CO2 degassing and climate change through time[J]. NATURE GEOSCIENCE,2017,10(12). |
APA | Brune, Sascha,Williams, Simon E.,&Mueller, R. Dietmar.(2017).Potential links between continental rifting, CO2 degassing and climate change through time.NATURE GEOSCIENCE,10(12). |
MLA | Brune, Sascha,et al."Potential links between continental rifting, CO2 degassing and climate change through time".NATURE GEOSCIENCE 10.12(2017). |
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