KMS Nanjing Institute of Geology and Palaeonotology,CAS
Mercury contents and isotope ratios in marine and terrestrial archives across the Cretaceous/Paleocene boundary | |
Li, Sha1,2![]() ![]() ![]() | |
2024 | |
发表期刊 | EARTH-SCIENCE REVIEWS
![]() |
ISSN | 0012-8252 |
卷号 | 248页码:17 |
摘要 | Mercury (Hg) records in marine and terrestrial archives across the Cretaceous/Paleocene (K/Pg) boundary were examined as a proxy for Deccan Large Igneous Province (LIP) eruptions. We examined no less than twenty-six key sections/boreholes that are globally distributed, and show that Hg values have a log-normal distribution. The data have a similar trend to that across other major extinction boundaries in the Phanerozoic record. Ques-tionable Hg/TOC anomalies have been ruled out, indicating excess Hg loading at the K/Pg boundary. Most Hg isotope values across the K/Pg boundary indicate a volcanic Hg source, based on the mass-independent (MIF) Delta 199Hg values. However, negative Delta 199Hg values suggest continental inputs in the Jhilmili section (India). Near -synchronous Hg and negative carbon-isotope excursion (CIE) patterns are identified in sediments associated with LIPs representing the paired release of Hg and isotopically depleted CO2, especially in the Latest Maastrichtian warming event (LMWE) that we attribute to the Deccan LIP. We compared the response of global biotic changes to Deccan volcanism and the Chicxulub impact. It appears that the end-Cretaceous mass extinction was a complex catastrophe caused by volcanism driving major climate fluctuations and ocean acidification, and perhaps exacerbated by the Chicxulub impact. |
关键词 | Deccan LIP End -Cretaceous extinction Mercury spikes Mercury isotopes |
DOI | 10.1016/j.earscirev.2023.104635 |
收录类别 | SCI |
语种 | 英语 |
关键词[WOS] | K-PG BOUNDARY ; TERTIARY BOUNDARY ; DECCAN VOLCANISM ; MASS EXTINCTION ; K/T BOUNDARY ; ATMOSPHERIC MERCURY ; ASTEROID IMPACT ; PALEOGENE TRANSITION ; BASQUE COUNTRY ; SONGLIAO BASIN |
资助项目 | National Natural Science Foundation of China[42125201] ; National Natural Science Foundation of China[42293280] ; National Natural Science Foundation of China[41972018] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2022310] ; PIFI[2019QZKK0706] ; Second Tibetan Plateau Scientific Expedition and Research ; [2020VCA0020] |
WOS研究方向 | Geology |
WOS类目 | Geosciences, Multidisciplinary |
WOS记录号 | WOS:001134831900001 |
项目资助者 | National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; PIFI ; Second Tibetan Plateau Scientific Expedition and Research |
出版者 | ELSEVIER |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/42935 |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Li, Sha |
作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China 3.Geol Survey Canada, 3303 33Rd St NW, Calgary, AB T2L 2A7, Canada 4.Nat Hist Museum, Dept Earth Sci, London SW7 5BD, England 5.China Univ Geosci, Sch Earth Sci & Resources, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China |
第一作者单位 | 中国科学院南京地质古生物研究所 |
通讯作者单位 | 中国科学院南京地质古生物研究所 |
推荐引用方式 GB/T 7714 | Li, Sha,Grasby, Stephen E.,Xing, Yi,et al. Mercury contents and isotope ratios in marine and terrestrial archives across the Cretaceous/Paleocene boundary[J]. EARTH-SCIENCE REVIEWS,2024,248:17. |
APA | Li, Sha.,Grasby, Stephen E..,Xing, Yi.,Jarzembowski, Edmund A..,Wang, Qifei.,...&Wang, Bo.(2024).Mercury contents and isotope ratios in marine and terrestrial archives across the Cretaceous/Paleocene boundary.EARTH-SCIENCE REVIEWS,248,17. |
MLA | Li, Sha,et al."Mercury contents and isotope ratios in marine and terrestrial archives across the Cretaceous/Paleocene boundary".EARTH-SCIENCE REVIEWS 248(2024):17. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论