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南海北部白云凹陷-东沙岛西南海区的浅地层探测与深水沉积特点
阎贫1; 王彦林2; 郑红波2
2011
Source Publication热带海洋学报
ISSN1009-5470
Volume030Issue:002Pages:115
Abstract采用新引进的海洋深水浅层剖面仪,从珠江口外陆架进入白云凹陷-东沙岛西南海区中陆坡区,进行了浅地层探测,获得了高分辨率反射记录。分析发现,白云凹陷上陆坡段沉积连续性较好,海底反射强度侧向变化平缓,显示了比较均一的沉积底质和微弱的海底水动力条件;在白云凹陷-东沙岛西南海区中陆坡区,海底滑坡严重,局部存在强烈的、平行陆坡的海底洋流冲蚀,海底地形崎岖不平,反射强度侧向变化大,表明海底底质不均匀,海底水动力强。浅地层记录还显示中陆坡海底山丘有海底气体泄露现象,结合常规反射地震识别的海底泥底辟特征,确定海底山丘为泥火山。气体泄露和海底反射振幅的变化代表了海底浅层聚有丰富的气体以及嗜甲烷生物链活动的钙化,因而推断该区不仅是油气的聚集区,也是水合物的聚集带。
Language英语
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/22271
Collection中国科学院广州能源研究所
Affiliation1.中国科学院广州能源研究所
2.中国科学院南海海洋研究所
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
阎贫,王彦林,郑红波. 南海北部白云凹陷-东沙岛西南海区的浅地层探测与深水沉积特点[J]. 热带海洋学报,2011,030(002):115.
APA 阎贫,王彦林,&郑红波.(2011).南海北部白云凹陷-东沙岛西南海区的浅地层探测与深水沉积特点.热带海洋学报,030(002),115.
MLA 阎贫,et al."南海北部白云凹陷-东沙岛西南海区的浅地层探测与深水沉积特点".热带海洋学报 030.002(2011):115.
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