| 南海东沙以南海域陆坡航磁异常特征与含油气盆地 |
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| 引用本文： | 刘天猛.南海东沙以南海域陆坡航磁异常特征与含油气盆地[J].城市地质,1996,8(4):1-9. |
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| 作者姓名： | 刘天猛 |
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| 作者单位： | 北京地质矿产部航空物探遥感中心 |
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| 摘 要： | 通过对南海东沙以南海域陆坡航磁异常特征的分析研究，指出引起各类磁异常的地质原因，认为本区陆坡地壳结构和陆壳相同，属于由陆壳到洋壳的过渡型地壳。同时，圈出东沙南磁性基底拗陷，推测该拗陷是一个很有希望的含油气盆地，并对该拗隐沉积层厚度进行了计算。
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| 关 键 词： | 油气藏 含油气盆地 航磁异常 南海 陆坡 |
THE CHARACTERISTICS OF AEROMAGNETIC ANOMALY OF CONTINENTAL SLOPE AND THE OIL AND GAS-BEARING BASIN IN THE OCEAN SPACE SOUTHERN OF THE DONGSHA ARCHIPELAGO OF SOUTH CHINA SEA |
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| Liu Tlanmeng.THE CHARACTERISTICS OF AEROMAGNETIC ANOMALY OF CONTINENTAL SLOPE AND THE OIL AND GAS-BEARING BASIN IN THE OCEAN SPACE SOUTHERN OF THE DONGSHA ARCHIPELAGO OF SOUTH CHINA SEA[J].City Geology,1996,8(4):1-9. |
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| Authors: | Liu Tlanmeng |
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| Institution: | Center of Remote Sensing and Geophysical Airborne Prospecting of the Ministry of Geology and Mineral Resources |
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| Abstract: | Based on the research and classification of the characteristics of aeromagnetic anomaly in the ocean space southern of the Dongsha archipelago of South China Sea,the author points out that the crustal structure of continental slope in the study area is similar to the continental crust,only the thickness was changed to thinerand it's crust belongs to the transitional type transforming from continental to oceanic crust.A down-warping region of the magnetic basement has been delineated,which may infer a hopeful oil and gasbearing basin.Using aeromagnetic data,the author proposes a method and technique to calculate the sediment thickness in the down-warping region of magnetic basement,and the thickness of sediment layer has been calculated. |
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| Keywords: | Dongsha archipelago of the South China Sea crustal structure continental slope transitional type of crust down-warping of magnetic basement sediment thickness |
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