Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL092260 |
A pronounced spike in ocean productivity triggered by the Chicxulub impact | |
Julia Brugger; Georg Feulner; Matthias Hofmann; Stefan Petri | |
2021-06-08 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | There is increasing evidence linking the mass-extinction event at the Cretaceous-Paleogene boundary to an asteroid impact near Chicxulub, Mexico. Here we use model simulations to explore the combined effect of sulfate aerosols, carbon dioxide and dust from the impact on the oceans and the marine biosphere in the immediate aftermath of the impact. We find a strong temperature decrease, a brief algal bloom caused by nutrients from both the deep ocean and the projectile, and moderate surface ocean acidification. Comparing the modeled longer-term post-impact warming and changes in carbon isotopes with empirical evidence points to a substantial release of carbon from the terrestrial biosphere. Overall, our results shed light on the decades to centuries after the Chicxulub impact which are difficult to resolve with proxy data. |
领域 | 气候变化 |
URL | 查看原文 |
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/329786 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Julia Brugger,Georg Feulner,Matthias Hofmann,et al. A pronounced spike in ocean productivity triggered by the Chicxulub impact[J]. Geophysical Research Letters,2021. |
APA | Julia Brugger,Georg Feulner,Matthias Hofmann,&Stefan Petri.(2021).A pronounced spike in ocean productivity triggered by the Chicxulub impact.Geophysical Research Letters. |
MLA | Julia Brugger,et al."A pronounced spike in ocean productivity triggered by the Chicxulub impact".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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