Enrichment Mechanism of Polymetallic Elements at the Base of the Niutitang Formation in Southeast Chongqing
文献类型：期刊论文
| 作者 | Wang, Guozhi3,4,5; Zhang, Can1,5; Liu, Dayong3,4,5; Qiu, Linfei2; Li, Ziying2; Peng, Ping'an3,4,5 |
| 刊名 | MINERALS
 |
| 出版日期 | 2024-10-01 |
| 卷号 | 14期号:10页码:15 |
| 关键词 | Upper Yangtze region Niutitang Formation shale polymetallic upwelling delta C-13(org) value excess silicon |
| DOI | 10.3390/min14100978 |
| 英文摘要 | Polymetallic enrichment layers are commonly found at the base of the Lower Cambrian and extensively distributed across the Upper Yangtze Platform, yet their genetic models remain controversial. This study systematically collected samples from a typical section in the southeastern Chongqing region for mineral, organic, and inorganic analyses. It investigates the relationship between the abundance of various trace metal elements and organic matter at the base of the Niutitang Formation, as well as the vertical distribution characteristics of organic carbon isotopes and organic matter features. The results indicate that the Niutitang Formation shale exhibits a distinct three-part structure from bottom to top. Various metal elements are enriched in the lower interval, showing a close correlation between the abundance of polymetallic elements and the carbon isotopes of shale organic matter. The middle interval contains the highest TOC value and the lowest Ti/Al ratio, while the upper interval shows a significant decrease in organic matter abundance, with a clear positive correlation between the excess silicon content and Ti/Al ratio. Additionally, the mixing effect of deep-sea upwelling is the primary control on the formation of polymetallic enrichment layers in the lower interval, followed by the adsorption of organic matter under anoxic conditions. The sedimentary environment of the upper interval of the Niutitang Formation trends toward oxidation, with paleoclimate shifting toward colder and drier conditions, exhibiting aeolian sedimentary features that are unfavorable for the enrichment of trace metal elements. Consequently, upwelling is a key factor in the enrichment and mineralization of trace metal elements at the base of the Lower Cambrian in the Upper Yangtze region. |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001343377500001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81270]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Liu, Dayong |
| 作者单位 | 1.Real Estate Registrat Ctr Zhaoqing City, Zhaoqing 526060, Peoples R China 2.China Natl Nucl Corp, Beijing Res Inst Uranium Geol, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Guozhi,Zhang, Can,Liu, Dayong,et al. Enrichment Mechanism of Polymetallic Elements at the Base of the Niutitang Formation in Southeast Chongqing[J]. MINERALS,2024,14(10):15. |
| APA | Wang, Guozhi,Zhang, Can,Liu, Dayong,Qiu, Linfei,Li, Ziying,&Peng, Ping'an.(2024).Enrichment Mechanism of Polymetallic Elements at the Base of the Niutitang Formation in Southeast Chongqing.MINERALS,14(10),15. |
| MLA | Wang, Guozhi,et al."Enrichment Mechanism of Polymetallic Elements at the Base of the Niutitang Formation in Southeast Chongqing".MINERALS 14.10(2024):15. |
入库方式： OAI收割
来源：广州地球化学研究所
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