| Gas hydrate associated with mud diapirs in southern Okinawa Trough | |
| Ning, Xu1,2; Shiguo, Wu2,3; Buqing, Shi1; Bing, Lu1; Liangqing, Xue1; Xiujuan, Wang2; Ying, Jia1 | |
| 2009-09-01 | |
| 发表期刊 | MARINE AND PETROLEUM GEOLOGY
 |
| ISSN | 0264-8172 |
| 卷号 | 26期号:8页码:1413-1418 |
| 文章类型 | Article |
| 摘要 | Many mud diapirs have been recognized in southern Okinawa Trough by a multi-channel seismic surveying on R/V KEXUE I in 2001. Gas hydrates have been identified, by the seismic reflection characteristics, the velocity analysis and the impedance inversion. Geothermal heat flow around the central of the mud diapir has been determined theoretically by the Bottom Simulating Reflectors (BSRs). Comparing the BSR derived and the measured heat flow values, we infer that the BSR immediately at the top of the mud diapirs indicate the base of the saturated gas hydrate formation zone (BSGHFZ), but not, as we ordinarily know, the base of the gas hydrate stability zone (BGHSZ), which could be explained by the abnormal regional background heat flow and free gas flux associated with mud diapirs. As a result, it helps us to better understand the generation mechanism of the gas hydrates associated with mud diapirs and to predict the gas hydrate potential in the southern Okinawa Trough. (C) 2008 Elsevier Ltd. All rights reserved.; Many mud diapirs have been recognized in southern Okinawa Trough by a multi-channel seismic surveying on R/V KEXUE I in 2001. Gas hydrates have been identified, by the seismic reflection characteristics, the velocity analysis and the impedance inversion. Geothermal heat flow around the central of the mud diapir has been determined theoretically by the Bottom Simulating Reflectors (BSRs). Comparing the BSR derived and the measured heat flow values, we infer that the BSR immediately at the top of the mud diapirs indicate the base of the saturated gas hydrate formation zone (BSGHFZ), but not, as we ordinarily know, the base of the gas hydrate stability zone (BGHSZ), which could be explained by the abnormal regional background heat flow and free gas flux associated with mud diapirs. As a result, it helps us to better understand the generation mechanism of the gas hydrates associated with mud diapirs and to predict the gas hydrate potential in the southern Okinawa Trough. (C) 2008 Elsevier Ltd. All rights reserved. |
| 关键词 | Mud Diapir Gas Hydrate Seismic Stratigraphy Seismic Attribute Okinawa Trough |
| 学科领域 | Geosciences, Multidisciplinary |
| DOI | 10.1016/j.marpetgeo.2008.10.001 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000270330300006 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/3718 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.China Natl Oil & Gas Explorat & Dev Corp, CNODC CNPC, Beijing 100034, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 3.China Univ Petr, Qingdao 266555, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Ning, Xu,Shiguo, Wu,Buqing, Shi,et al. Gas hydrate associated with mud diapirs in southern Okinawa Trough[J]. MARINE AND PETROLEUM GEOLOGY,2009,26(8):1413-1418. |
| APA | Ning, Xu.,Shiguo, Wu.,Buqing, Shi.,Bing, Lu.,Liangqing, Xue.,...&Ying, Jia.(2009).Gas hydrate associated with mud diapirs in southern Okinawa Trough.MARINE AND PETROLEUM GEOLOGY,26(8),1413-1418. |
| MLA | Ning, Xu,et al."Gas hydrate associated with mud diapirs in southern Okinawa Trough".MARINE AND PETROLEUM GEOLOGY 26.8(2009):1413-1418. |
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