Cadmium isotope evidence for near-modern bio-productivity in the early Cambrian ocean
文献类型：期刊论文
| 作者 | Liu, Zeyang2,4,6; Dickson, Alexander J.5; Sun, Haijing1; Wu, Yaowen2,4; Qiu, Zhen3; Tian, Hui2,4 |
| 刊名 | CHEMICAL GEOLOGY
 |
| 出版日期 | 2024-09-20 |
| 卷号 | 663页码:10 |
| 关键词 | Cd isotopes Ocean oxygenation Cambrian explosion Deep-water Productivity |
| ISSN号 | 0009-2541 |
| DOI | 10.1016/j.chemgeo.2024.122275 |
| 英文摘要 | The Ediacaran-Cambrian transition was one of the major transitions in Earth's history, with mass extinctions and radiation of animals. This event has been linked with perturbations in ocean geochemistry, including redox conditions and the oxygenation of Earth's surface environments. Here we present a highly resolved cadmium isotope record (delta 114Cd) from shales deposited in a deep-water environment covering the Late Ediacaran to Cambrian Stage 4. Our delta 114Cd data vary from -0.70 to +0.35 parts per thousand and demonstrate the importance of local redoxdependent burial phases on bulk sediment Cd isotope compositions, which are superimposed on global-scale changes in the Cd cycle. The heaviest Cd isotope composition recorded in the early Cambrian Liuchapo Formation is similar to the modern deep ocean, implying a broad similarity in global Cd cycling, perhaps involving similar organic-Cd burial rates. The provision of bio-limiting nutrients by continental weathering with rising oxygen concentrations in Earth's surface environments could have expanded the habitable area of the ocean and contributed to animal diversification. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001275062300001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78144]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Tian, Hui |
| 作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Ctr Excellence Life & Paleoenvironm, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 3.PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 5.Royal Holloway Univ London, Ctr Climate Ocean & Atmosphere, Dept Earth Sci, Egham TW20 0EX, Surrey, England 6.Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploitat, Chengdu 610059, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Zeyang,Dickson, Alexander J.,Sun, Haijing,et al. Cadmium isotope evidence for near-modern bio-productivity in the early Cambrian ocean[J]. CHEMICAL GEOLOGY,2024,663:10. |
| APA | Liu, Zeyang,Dickson, Alexander J.,Sun, Haijing,Wu, Yaowen,Qiu, Zhen,&Tian, Hui.(2024).Cadmium isotope evidence for near-modern bio-productivity in the early Cambrian ocean.CHEMICAL GEOLOGY,663,10. |
| MLA | Liu, Zeyang,et al."Cadmium isotope evidence for near-modern bio-productivity in the early Cambrian ocean".CHEMICAL GEOLOGY 663(2024):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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