Unique Authigenic Mineral Assemblages and Planktonic Foraminifera Reveal Dynamic Cold Seepage in the Southern South China Sea
文献类型：期刊论文
| 作者 | Zhou, Yang; Di, Pengfei1,3,4,5; Li, Niu1,3,4,5; Chen, Fang; Su, Xin6; Zhang, Jinpeng |
| 刊名 | MINERALS
 |
| 出版日期 | 2020 |
| 卷号 | 10期号:3页码:275 |
| 关键词 | authigenic gypsum authigenic pyrite cold seep planktonic foraminifera southern South China Sea |
| ISSN号 | 2075-163X |
| DOI | 10.3390/min10030275 |
| 英文摘要 | Many cold seeps and gas hydrate areas have not been discovered beside the Beikan basin in the southern South China Sea (SCS), and their characteristics and histories also remain poorly known. Here we describe authigenic minerals and the carbon and oxygen isotopic composition of planktonic foraminifera Globigerinoides ruber from sediment core 2PC, recovered from the gas hydrate zone of the Nansha Trough, southern SCS, to elucidate its history of dynamic cold seepage. We infer that the occurrence of authigenic gypsum crystals and pyrite concretions, and anomalously negative delta C-13 values of Globigerinoides ruber, reflect paleo-methane seepage. Two major methane release events were identified, based on remarkable excursions in foraminifera delta C-13 at depths of 150-250 cm and 350-370 cm. Euhedral gypsum crystals and tubular pyrite concretions co-occur with extremely negative planktonic foraminifera delta C-13 values, indicating a shift in the sulfate methane transition zone and a change in the methane flux. Our data suggest that authigenic mineral assemblages and delta C-13 values of planktonic foraminifera provide a valuable tool in elucidating the characteristics of dynamic methane seepage in a marine environment. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18572]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad South China Sea Ecol & Environm Engn, Guangzhou 510301, Peoples R China 2.China Univ Geosci, Sch Ocean Sci, Beijing 100083, Peoples R China 3.Minist Nat Resources, MNR Key Lab Marine Mineral Resources, Guangzhou Marine Geol Survey, Guangzhou 510075, Peoples R China 4.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Peoples R China 5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266061, Peoples R China 6.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511481, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yang,Di, Pengfei,Li, Niu,et al. Unique Authigenic Mineral Assemblages and Planktonic Foraminifera Reveal Dynamic Cold Seepage in the Southern South China Sea[J]. MINERALS,2020,10(3):275. |
| APA | Zhou, Yang,Di, Pengfei,Li, Niu,Chen, Fang,Su, Xin,&Zhang, Jinpeng.(2020).Unique Authigenic Mineral Assemblages and Planktonic Foraminifera Reveal Dynamic Cold Seepage in the Southern South China Sea.MINERALS,10(3),275. |
| MLA | Zhou, Yang,et al."Unique Authigenic Mineral Assemblages and Planktonic Foraminifera Reveal Dynamic Cold Seepage in the Southern South China Sea".MINERALS 10.3(2020):275. |
入库方式： OAI收割
来源：南海海洋研究所
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