| 东海磁场及磁性基底特征 |
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| 引用本文： | 韩波,张训华,孟祥君.东海磁场及磁性基底特征[J].海洋地质与第四纪地质,2010(1). |
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| 作者姓名： | 韩波 张训华 孟祥君 |
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| 作者单位： | 青岛海洋地质研究所;国土资源部海洋油气与地质环境重点实验室; |
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| 基金项目： | 国土资源部海洋油气资源与环境地质重点实验室基金(MRE200919);;国土资源大调查项目(1212010511302) |
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| 摘 要： | 利用东海及邻域最新的磁力异常数据,分析东海的磁场特征,并利用该磁力数据计算东海的磁性基底界面,分析解释磁性界面的特征及地质特征。研究表明,从陆区、陆架盆地到冲绳海槽中部,磁力异常呈正负相间变化,最大值出现在福建沿海地区;磁性基底深度在4～11km之间变化。从冲绳海槽中部到琉球群岛,磁异常从正磁异常变为负磁异常;磁性基底深度为7～12km之间变化。从琉球弧前盆地到琉球海沟,磁力异常为正负相间变化,中部磁异常为负值,两侧异常为正值;磁性基底深度为7.5～11km之间变化。
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| 关 键 词： | 磁场特征 磁性基底 东海 |
MAGNETIC FIELD AND BASEMENT FEATURES ANALYSIS IN THE EAST CHINA SEA |
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| HAN Bo,ZHANG Xunhua,MENG Xiangjun.MAGNETIC FIELD AND BASEMENT FEATURES ANALYSIS IN THE EAST CHINA SEA[J].Marine Geology & Quaternary Geology,2010(1). |
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| Authors: | HAN Bo ZHANG Xunhua MENG Xiangjun |
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| Institution: | 1 Qingdao Institute of Marine Geology;Qingdao 266071;China;2 Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology;Ministry of Land and Resources;China |
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| Abstract: | Based on the new magnetic data in the East China Sea,the characteristics of magnetic anomalies have been analyzed ,magnetic basement been calculated and the features of basement and geology also analyzed. The magnetic anomalies change differently from west to east. From land to shelf and to the middle of the Okinawa Trough,the magnetic anomalies change between positive and negative,the highest negative magnetic anomaly also arises in Fujian coastal area and magnetic basement of this area changes between 5 k... |
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| Keywords: | magnetic field feature magnetic basement the East China Sea |
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