| 冲绳海槽天然气水合物稳定带特征及资源量评价 |
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| 引用本文： | 唐勇,方银霞,高金耀,李军.冲绳海槽天然气水合物稳定带特征及资源量评价[J].海洋地质与第四纪地质,2005,25(4):79-84. |
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| 作者姓名： | 唐勇 方银霞 高金耀 李军 |
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| 作者单位： | 1. 国家海洋局第二海洋研究所,海底科学重点实验室,杭州,310012
2. 青岛海洋地质研究所,青岛,266071 |
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| 基金项目： | 国家重点基础研究发展规划项目（G2000046703）;国家海洋局青年基金项目（2001509） |
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| 摘 要： | 根据冲绳海槽多道地震资料的处理解释,在16条地震剖面上发现了水合物似海底反射层BSR,经过AVO、波形反演等特殊的处理技术,首次直接利用BSR圈定了冲绳海槽天然气水合物的具体分布范围,直接利用数据得出了天然气水合物稳定带厚度在冲绳海槽的分布趋势,认为海槽南部最厚,中部次之,北部最薄,并通过计算得出了冲绳海槽水合物稳定带的厚度和水合物资源量,对今后海槽水合物勘查和资源量评价具有一定的指导意义.
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| 关 键 词： | 天然气水合物稳定带 BSR 资源量评价 冲绳海槽 |
| 文章编号： | 0256-1492（2005）04-0079-06 |
| 收稿时间： | 2005-03-18 |
| 修稿时间： | 2005-05-20 |
CHARACTERISTICS OF GAS HYDRATE STABILITY ZONE AND EVALUATION OF RESOURCES IN OKINAWA TROUGH |
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| TANG Yong,FANG Yin-xia,GAO Jin-yao,LI Jun.CHARACTERISTICS OF GAS HYDRATE STABILITY ZONE AND EVALUATION OF RESOURCES IN OKINAWA TROUGH[J].Marine Geology & Quaternary Geology,2005,25(4):79-84. |
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| Authors: | TANG Yong FANG Yin-xia GAO Jin-yao LI Jun |
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| Institution: | 1 Key Lab of Submarine Geosciences,Second Institute of Oceanography,State Oceanic Administration, Hangzhou 310012,China; 2 Qingdao Institute of Marine Geology,Qingdao 266071 ,China |
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| Abstract: | According to the processing and interpretation of multichannel seismic reflection data in the area of Okinawa Trough,the BSR(bottom simulating reflector) are identified in 16 seismic profiles.By special processing technology such as AVO and waveform inversions,the authors,for the first time,directly used BSR to outline the distribution extent of gas hydrate in the Okinawa Trough,used the data to know the distribution tendency of thickness of gas hydrate stability zone in the Trough and thought that the largest stability zone thickness was in the south and the smallest in the north.Then through calculation the authors got the thickness of hydrate stability zone and resources of the hydrate.This would be useful to the future hydrate explorations and resource evaluations in the Okinawa Trough. |
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| Keywords: | BSR gas hydrate hydrate stability zone Okinawa Trough |
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