Modeling calculation of top occurrence of marine gas hydrates
文献类型：期刊论文
| 作者 | Cao, YC ; Chen, DF |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2014 |
| 卷号 | 57期号:2页码:618-627 |
| 关键词 | Sulfate profile Sulfate-methane interface Methane flux Top occurrence of gas hydrate Numerical model |
| ISSN号 | 0001-5733 |
| 通讯作者 | cdf@gig.ac.cn |
| 中文摘要 | A major problem in evaluation of gas hydrate resources is lack of a reliable technique to constrain the top occurrence of gas hydrates. We have developed a numerical model of the top occurrence of gas hydrates based on that the depleted quantity of sulfate diffusion downward equals to that of methane flux upward at sulfate-methane interface (SMI) and the methane solubility in the water-hydrate system, using steady state and analytical expressions. In situ methane production and sulfate depletion associated with the oxidation of sedimentary organic matter were considered in the model. We applied this model to ODP site 1245 and IODP site 1327, and calculated the top of gas hydrate occurrence at these two sites, yielding 53 mbsf, 83 mbsf, respectively, which are consistent with the top depth estimated by drilling. |
| 学科主题 | Geochemistry & Geophysics |
| 收录类别 | SCI |
| 原文出处 | SCIENCE PRESS |
| WOS记录号 | WOS:000332443600025 |
| 公开日期 | 2014-12-11 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/10652]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 推荐引用方式 GB/T 7714 | Cao, YC,Chen, DF. Modeling calculation of top occurrence of marine gas hydrates[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(2):618-627. |
| APA | Cao, YC,&Chen, DF.(2014).Modeling calculation of top occurrence of marine gas hydrates.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(2),618-627. |
| MLA | Cao, YC,et al."Modeling calculation of top occurrence of marine gas hydrates".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.2(2014):618-627. |
入库方式： OAI收割
来源：南海海洋研究所
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