Marine anoxia linked to abrupt global warming during Earth’s penultimate icehouse

Chen J.; Monta?ez I.P.; Zhang S.Isson T.T.Macarewich S.I.Planavsky N.J.Zhang F.Rauzi S.Daviau K.Yao L.Qi Y.-P.Wang Y.Fan J.-X.Poulsen C.J.Anbar A.D.Shen S.-Z.Wang X.-D.

首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America. >Marine anoxia linked to abrupt global warming during Earth’s penultimate icehouse

【24h】

Marine anoxia linked to abrupt global warming during Earth’s penultimate icehouse

机译：Marine anoxia linked to abrupt global warming during Earth’s penultimate icehouse

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Piecing together the history of carbon (C) perturbation events throughout Earth’s history has provided key insights into how the Earth system responds to abrupt warming. Previous studies, however, focused on short-term warming events that were superimposed on longer-term greenhouse climate states. Here, we present an integrated proxy (C and uranium [U] isotopes and paleo CO2) and multicomponent modeling approach to investigate an abrupt C perturbation and global warming event (～304 Ma) that occurred during a paleo-glacial state. We report pronounced negative C and U isotopic excursions coincident with a doubling of atmospheric CO2 partial pressure and a biodiversity nadir. The isotopic excursions can be linked to an injection of ～9,000 Gt of organic matter–derived C over ～300 kyr and to near 20% of areal extent of seafloor anoxia. Earth system modeling indicates that widespread anoxic conditions can be linked to enhanced thermocline stratification and increased nutrient fluxes during this global warming within an icehouse.

著录项

来源
《Proceedings of the National Academy of Sciences of the United States of America.》 |2022年第19期|e2115231119-e2115231119|共1页
作者
Chen J.; Monta?ez I.P.; Zhang S.Isson T.T.Macarewich S.I.Planavsky N.J.Zhang F.Rauzi S.Daviau K.Yao L.Qi Y.-P.Wang Y.Fan J.-X.Poulsen C.J.Anbar A.D.Shen S.-Z.Wang X.-D.;
展开▼
作者单位

State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and;

展开▼
收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类自然科学总论;
关键词
C isotope excursions; C-perturbation events; greenhouse gas–driven abrupt global warming; late Paleozoic; marine anoxia; U;

Marine anoxia linked to abrupt global warming during Earth’s penultimate icehouse

摘要

著录项

相关主题

期刊订阅