Constraints of paleoenvironment on selenium enrichment of the Ediacaran-Cambrian transition period Lujiaping Group in the North Daba Mountains, China
文献类型：期刊论文
| 作者 | Yang, Sujiao1,2; Zhang, Shixi2; Luo, Yingjie2; Cheng, Jiulong2; Luo, Kunli1 |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2026-04-15 |
| 卷号 | 688页码:113637 |
| 关键词 | Selenium Lujiaping Group North Daba Mountains Distribution patterns Enrichment mechanisms |
| ISSN号 | 0031-0182 |
| DOI | 10.1016/j.palaeo.2026.113637 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | The Lujiaping Group (LG), a diachronous unit spanning the Ediacaran-Cambrian transition period in the North Daba Mountains, China, exhibits notable selenium (Se) enrichment. However, the distribution patterns and enrichment mechanisms remain poorly understood. In this study, we analyzed the elemental content and lithology of 61 rock samples from the LG named section in Ziyang County. The Se concentrations ranged from 0 similar to 147.86 mu g/g, with an average of 16.31 mu g/g. The LG was subdivided into 5 Formations (Doushantuo Formation (DST), Dengying Formation (DY), Huoshiwan Formation (HSW), Baihe Formation (BH), Shanpingshang Formation (SPS)) from bottom to top, all showing Se enrichment with average enrichment factor (EF=content/upper continental crust (UCC))>2. The BH of the Terreneuvian of the Cambrian showed the highest Se enrichment (mean EF=663.56), while the upper part of the SPS of the Series 2 of the Cambrian showed the lowest Se enrichment (mean EF=3.45). Geochemical and petrographic characteristics suggest that hydrothermal influence was most pronounced in the DST to the lower part of the HSW, while the upper part of the HSW to the SPS received more input from terrestrial sources, and the upper part of the HSW to the lower part of the SPS received more from organism sources. Additionally, paleoenvironmental and paleoclimatic factors such as alternating anoxic-euxinic and suboxic conditions, high primary productivity, intermittent upwelling, and a warm, moist climate may have further promoted Se enrichment. |
| URL标识 | 查看原文 |
| WOS关键词 | RARE-EARTH-ELEMENTS ; SEDIMENTARY-ROCKS ; SOUTH CHINA ; GEOCHEMICAL CHARACTERISTICS ; INTEGRATIVE STRATIGRAPHY ; OCEAN OXYGENATION ; YANGTZE PLATFORM ; SELENOSIS AREA ; ORGANIC-CARBON ; BLACK SHALES |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001691953400001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/220947]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Zhang, Shixi; Luo, Kunli |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.China Univ Min & Technol Beijing, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yang, Sujiao,Zhang, Shixi,Luo, Yingjie,et al. Constraints of paleoenvironment on selenium enrichment of the Ediacaran-Cambrian transition period Lujiaping Group in the North Daba Mountains, China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2026,688:113637. |
| APA | Yang, Sujiao,Zhang, Shixi,Luo, Yingjie,Cheng, Jiulong,&Luo, Kunli.(2026).Constraints of paleoenvironment on selenium enrichment of the Ediacaran-Cambrian transition period Lujiaping Group in the North Daba Mountains, China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,688,113637. |
| MLA | Yang, Sujiao,et al."Constraints of paleoenvironment on selenium enrichment of the Ediacaran-Cambrian transition period Lujiaping Group in the North Daba Mountains, China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 688(2026):113637. |
入库方式： OAI收割
来源：地理科学与资源研究所
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