Novel use of unique minerals to reveal an intensified methane seep during the last glacial period in the South China Sea
文献类型：期刊论文
| 作者 | Zhang, Qinyi2,3; Wu, Daidai3 ; Jin, Guangrong3; Mao, Shengyi3; Liu, Jie3; Yang, Chao3; Liu, Lihua3; Xu, Xing1; Yang, Peining2,3; Cao, Yiyun3
|
| 刊名 | MARINE GEOLOGY
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 452页码:13 |
| 关键词 | Methane seep South China Sea Pyrite Glauconite Last Glacial Period |
| ISSN号 | 0025-3227 |
| DOI | 10.1016/j.margeo.2022.106901 |
| 通讯作者 | Wu, Daidai(wudd@ms.giec.ac.cn) |
| 英文摘要 | Globally, research aiming to reveal the unique biogeochemical processes and gas hydrate potential in methane seep areas is well established. Furthermore, methane seeps discovered in the South China Sea (SCS) have been widely studied and have achieved significant results. Herein, by systematically analyzing sedimentary samples from the Shenhu area, SCS, we discovered a methane seep that was once active during the last glacial period, particularly the Last Glacial Maximum (LGM) period, and fixed at the seafloor for similar to 10 ka. This discovery was achieved by integrating the features of the glauconite within the foraminifera chamber, different morphologies of pyrites, and unique framboid goethites (pyrite pseudomorphs). In addition, this study accounted for the high chromium-reducible sulfur content and extremely negative delta 34S values (from-50.78 to-46.92%) between 121 and 231 cmbsf, the Mo content and its correlation with total sulfur (TS) and total organic carbon (TOC), the TS/ TOC ratios of sediments, the results of AMS C-14 dating, and the results of planktonic foraminifera analysis in the case of carbon and oxygen isotopes. Glauconite, which is usually considered a product associated with trans-gressive deposits and condensed sections, is widely found in warm climatic intervals. However, these intervals are generally associated with methane emission events. Thus, our results demonstrate another mechanism for the formation of glauconite in methane seeps during the LGM. Furthermore, the existence of framboid goethites implies that this methane seep has been subsiding since the end of the LGM and that few pyrites that formed previously were reoxidized. Notably, this study is the first to report a systematic investigation of methane seep activity during the last glacial period by the indication of authigenic minerals, such as glauconite and framboid goethite, in the SCS. Overall, our results show a direct relationship between methane seep activity and climatic variation. |
| WOS关键词 | SULFUR ISOTOPE FRACTIONATION ; IRON II MONOSULFIDE ; 125 DEGREES-C ; PYRITE FORMATION ; ANAEROBIC OXIDATION ; SULFATE REDUCTION ; COLD SEEPS ; AUTHIGENIC CARBONATES ; CONTINENTAL-MARGIN ; AQUEOUS-SOLUTIONS |
| 资助项目 | Guangdong Basic and Applied Basic Research Fund Project[2021A1515011509] ; Municipal Science and Technology Program of Guangzhou[201904010311] ; National Natural Science Foundation of China[42102302] ; PetroChina Innovation Foundation[2020D-5007-0212] ; Guangdong Province Marine Economic Development (Six Major Marine Industries) Special Fund Project[58] |
| WOS研究方向 | Geology ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000863120900001 |
| 出版者 | ELSEVIER |
| 资助机构 | Guangdong Basic and Applied Basic Research Fund Project ; Municipal Science and Technology Program of Guangzhou ; National Natural Science Foundation of China ; PetroChina Innovation Foundation ; Guangdong Province Marine Economic Development (Six Major Marine Industries) Special Fund Project |
| 源URL | [http://ir.giec.ac.cn/handle/344007/37459]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Wu, Daidai |
| 作者单位 | 1.Minist Nat Resources, Guangzhou Marine Geol Survey, China Geol Survey, Guangzhou 510075, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Qinyi,Wu, Daidai,Jin, Guangrong,et al. Novel use of unique minerals to reveal an intensified methane seep during the last glacial period in the South China Sea[J]. MARINE GEOLOGY,2022,452:13. |
| APA | Zhang, Qinyi.,Wu, Daidai.,Jin, Guangrong.,Mao, Shengyi.,Liu, Jie.,...&Su, Zheng.(2022).Novel use of unique minerals to reveal an intensified methane seep during the last glacial period in the South China Sea.MARINE GEOLOGY,452,13. |
| MLA | Zhang, Qinyi,et al."Novel use of unique minerals to reveal an intensified methane seep during the last glacial period in the South China Sea".MARINE GEOLOGY 452(2022):13. |
入库方式： OAI收割
来源：广州能源研究所
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。