Enhanced deep carbon cycle marked by the upsurge of silica-undersaturated nephelinitic magmatism at the Proterozoic-Phanerozoic boundary
文献类型：期刊论文
| 作者 | Chen, Qian1,2,3 ; Liu, He1,2; Li, Shu-guang4,5; Qiu, Liang4; Liao, Ren-qiang1,2; Xie, Guo-zhi1,2,3; Sun, Wei-dong1,2,3
|
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 214页码:8 |
| ISSN号 | 1367-9120 |
| 关键词 | Deep carbon cycle Mantle cooling Nephelinitic rocks Modern plate tectonics Subduction Oxygen fugacity |
| DOI | 10.1016/j.jseaes.2021.104772 |
| 通讯作者 | Liu, He(liuhe@qdio.ac.cn) |
| 英文摘要 | The temperature of the upper mantle was a principal factor controlling the style of plate tectonics and influencing magmatism and metamorphism on Earth over geological history. Recent studies emphasized that Earth's tectonic style has transited into the modern plate tectonics since the late Neoproterozoic, which is characterized by a global network of plate boundaries with deep and cold oceanic plate subduction. However, the consequence of the establishment of modern plate tectonics to Earth's mantle temperature and deep carbon cycle has not been fully understood. Here we apply statistical analysis on the geochemical data of continental igneous rocks and identify an increased magnitude of nephelinitic volcanism at the end of the Ediacaran. Nephelinitic rocks, a silica-undersaturated high-alkaline rock group, are mostly formed by low-degree melting of carbonated mantle sources. We link their widespread emergence with an enhanced mantle cooling event and a dramatically increased flux of crustal carbonates transporting to the mantle. The rapid cooling of the mantle was ascribed to the onset of modern-style plate tectonics with global-scale cold oceanic and continental subduction since the late Neoproterozoic. The declined upper-mantle temperature could not only favor the low-degree melting but also allow the subduction of carbonates into the deep mantle without decarbonation at shallow depth. Considering the high oxygen fugacity feature of the nephelinitic rocks and some other high-alkaline volcanism, the establishment of modern plate tectonics and thereafter enhanced mantle cooling and deep carbon cycle might contribute to the high-level atmospheric oxygen content during the Phanerozoic. |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22050103] ; National Natural Science Foundation of China[42073011] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000656155900002 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/176825]  |
| 专题 | 海洋研究所_深海极端环境与生命过程研究中心 |
| 通讯作者 | Liu, He |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100094, Peoples R China 4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 5.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Qian,Liu, He,Li, Shu-guang,et al. Enhanced deep carbon cycle marked by the upsurge of silica-undersaturated nephelinitic magmatism at the Proterozoic-Phanerozoic boundary[J]. JOURNAL OF ASIAN EARTH SCIENCES,2021,214:8. |
| APA | Chen, Qian.,Liu, He.,Li, Shu-guang.,Qiu, Liang.,Liao, Ren-qiang.,...&Sun, Wei-dong.(2021).Enhanced deep carbon cycle marked by the upsurge of silica-undersaturated nephelinitic magmatism at the Proterozoic-Phanerozoic boundary.JOURNAL OF ASIAN EARTH SCIENCES,214,8. |
| MLA | Chen, Qian,et al."Enhanced deep carbon cycle marked by the upsurge of silica-undersaturated nephelinitic magmatism at the Proterozoic-Phanerozoic boundary".JOURNAL OF ASIAN EARTH SCIENCES 214(2021):8. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
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。