First report of Early Permian Tasmanite oil shales in northern Pangea with global implications
文献类型：期刊论文
| 作者 | Zhang, Ruijie1; Cao, Jian1; Hu, Wenxuan1; Bian, Lizeng1; Wang, Yuce3; Zhang, Bin1; Xia, Liuwen1; Yao, Suping1; Tang, Yong2 |
| 刊名 | ORGANIC GEOCHEMISTRY
 |
| 出版日期 | 2024-02-01 |
| 卷号 | 188页码:10 |
| 关键词 | Tasmanites Biotic precursor C28/C29 sterane Permian oil shale Lucaogou Formation Junggar Basin |
| ISSN号 | 0146-6380 |
| DOI | 10.1016/j.orggeochem.2024.104736 |
| 英文摘要 | During the Late Paleozoic Ice Age (LPIA; particularly early Permian), organic material of the alga Tasmanites was extensively deposited in sediments of southern Gondwana, which formed the Tasmanite oil shales that have only been identified in Tasmania, Australia. It remains unclear whether other analogous geological records exist worldwide that formed at the same time, and the origin is enigmatic. This paper reports the first discovery of Tasmanite oil shales in northern Pangea, specifically in the Lucaogou Formation of the Junggar Basin, China, deposited during the Artinskian (ca. 290 Ma). The organic petrological features of Tasmanites are clearly visible, including thick-walled disks with tubes and radially arranged channels. These shales have markedly elevated C28/C29 steranes and tricyclic terpanes/hopanes ratios. Based on inorganic geochemical data, the salinity of the paleo-lake during deposition of the Tasmanite oil shale interval decreased abruptly from saline to brackish-freshwater. In addition, the pH changed from alkaline to nearly neutral, while the redox environment changed from anoxic to suboxic. Enhanced continental chemical weathering and the change in salinity of the paleo-lake occurred at the same time as global warming and large-scale glacier melting during the Artinskian, which promoted the habitat of the low -salinity tolerant Tasmanites. Our results provide new geological evidence for another occurrence of early Permian Tasmanite oil shales, indicating that Tasmanites flourishs and the associated oil shales may have been widely deposited at the end of the LPIA. The flourishment of Tasmanites archives biotic-environmental co -evolution. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001163982100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/76279]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Cao, Jian |
| 作者单位 | 1.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Jiangsu, Peoples R China 2.PetroChina Xinjiang Oilfield Co, Karamay 834000, Xinjiang, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Ruijie,Cao, Jian,Hu, Wenxuan,et al. First report of Early Permian Tasmanite oil shales in northern Pangea with global implications[J]. ORGANIC GEOCHEMISTRY,2024,188:10. |
| APA | Zhang, Ruijie.,Cao, Jian.,Hu, Wenxuan.,Bian, Lizeng.,Wang, Yuce.,...&Tang, Yong.(2024).First report of Early Permian Tasmanite oil shales in northern Pangea with global implications.ORGANIC GEOCHEMISTRY,188,10. |
| MLA | Zhang, Ruijie,et al."First report of Early Permian Tasmanite oil shales in northern Pangea with global implications".ORGANIC GEOCHEMISTRY 188(2024):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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。