Late Ediacaran to Early Cambrian stratigraphic correlation and its geological implications in the northwestern Sichuan Basin: insights from phosphorus, isotopes, and small shelly fossils
文献类型：期刊论文
| 作者 | Li, Wenzheng1,2; Zhang, Jianyong2; Zhu, Xinjian2; Wang, Yongxiao2; Tian, Xingwang3; Fu, Xiaodong2; Jiang, Hua4; Zhong, Yuan3; Liu, Shugen1; Li, Rong4 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2024-09-03 |
| 卷号 | 12页码:18 |
| 关键词 | phosphorus small shelly fossil stratigraphic division intracratonic rift evolution Ediacaran-Cambrian Sichuan Basin |
| DOI | 10.3389/feart.2024.1440117 |
| 通讯作者 | Zhu, Xinjian(xjzhus@163.com) ; Liu, Shugen(lsg@cdut.edu.cn) |
| 英文摘要 | The characteristics of elements, isotopes, and small shelly fossils were investigated for Late Ediacaran to Early Cambrian stratigraphy division and to discuss their geological implications in the northwestern Sichuan Basin. The results reveal that small shelly fossils can be detected in the high-phosphorous section, with the concentration of phosphorus mainly ranging from 2% to 8%, suggesting that this interval belongs to the Early Cambrian, which is also consistent with the carbon isotopic composition results. In addition, the Early Cambrian is denudated in the Sichuan Basin due to tectonic movement, and the characteristics of some isotopes and small shell fossils are different from those in other basins. It can be proposed that P content can support the recognition of lithological boundaries, and the high phosphorus content can be used as a reference to identify the top and bottom boundaries of the Maidiping Formation in the study area. According to the elemental compositions in the Ediacaran Dengying Formation, the variations in Si, Al, Fe, and K contents are similar in the platform area and rift area, suggesting that the third and fourth member of the Dengying Formation are also developed in the Deyang-Anyue Rift. The results suggest that both the Deng-4 member and Maidiping Formation feature contemporaneous deposition of different facies in the northwestern Sichuan Basin. The strata consist of shale intercalated with thin carbonate rock deposits in the Deyang-Anyue Rift, while carbonate rock deposits in the platform. The Deyang-Anyue Rift expanded gradually in the Late Ediacaran and eventually filled in the Early Cambrian. The data in this study illustrate that elemental compositions, isotopes, and small shelly fossils can be combined to correlate the Late Ediacaran to Early Cambrian strata and provide new evidence for Deyang-Anyue Rift evolution. The results offer some new insights for deep oil and gas exploration in the Sichuan Basin and for the tectonic-depositional-environmental-biological synergistic evolution in the Late Ediacaran to Early Cambrian transition. |
| WOS关键词 | YANGTZE PLATFORM ; SOUTHWEST CHINA ; XIAOTAN SECTION ; CARBON ; EVOLUTION ; BOUNDARY ; YUNNAN ; ASSEMBLAGES ; CONSTRAINTS ; TRANSITION |
| 资助项目 | PetroChina10.13039/501100004226 |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001313724600001 |
| 出版者 | FRONTIERS MEDIA SA |
| 资助机构 | PetroChina10.13039/501100004226 |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/44297]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Zhu, Xinjian; Liu, Shugen |
| 作者单位 | 1.Chengdu Univ Technol, Coll Energy, Chengdu, Peoples R China 2.PetroChina Hangzhou Res Inst Geol, Hangzhou, Peoples R China 3.PetroChina Southwest Oil & Gasfield Co, Chengdu, Peoples R China 4.PetroChina, Res Inst Petr Explorat & Dev, Beijing, Peoples R China 5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Wenzheng,Zhang, Jianyong,Zhu, Xinjian,et al. Late Ediacaran to Early Cambrian stratigraphic correlation and its geological implications in the northwestern Sichuan Basin: insights from phosphorus, isotopes, and small shelly fossils[J]. FRONTIERS IN EARTH SCIENCE,2024,12:18. |
| APA | Li, Wenzheng.,Zhang, Jianyong.,Zhu, Xinjian.,Wang, Yongxiao.,Tian, Xingwang.,...&Deng, Bin.(2024).Late Ediacaran to Early Cambrian stratigraphic correlation and its geological implications in the northwestern Sichuan Basin: insights from phosphorus, isotopes, and small shelly fossils.FRONTIERS IN EARTH SCIENCE,12,18. |
| MLA | Li, Wenzheng,et al."Late Ediacaran to Early Cambrian stratigraphic correlation and its geological implications in the northwestern Sichuan Basin: insights from phosphorus, isotopes, and small shelly fossils".FRONTIERS IN EARTH SCIENCE 12(2024):18. |
入库方式： OAI收割
来源：南京地质古生物研究所
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