| 南海海域油气藏上方汞异常特征分析 |
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| 引用本文： | 陈汉宗,王平,周蒂,王维熙.南海海域油气藏上方汞异常特征分析[J].中国海上油气,1997(5). |
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| 作者姓名： | 陈汉宗 王平 周蒂 王维熙 |
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| 作者单位： | 中国科学院南海海洋研究所!广东广州510301(陈汉宗，王平，周蒂)，中国有色金属工业总公司甘肃地质研究所!甘肃兰州730000(王维熙) |
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| 摘 要： | 在南海进行了8个航次的调查,发现汞地球化学异常出现在油气藏或含油气凹陷上方的海底沉积物、海水和海面大气中.这些介质中的汞异常经常互相叠置,且与其他油气化探指标组成综合异常.汞异常一般规模较大,中等以上强度;平面上为顶端块状异常,剖面上为相对连续的异常坪.见有汞异常浓度由沉积物向上经底层、表层海水到海面大气渐次降低的趋势.文中列举了实例,证明汞是一种有效的海上油气化探指标.
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| 关 键 词： | 汞异常 地球化学勘探 南海 |
CHARACTERISTICS OF MERCURY GEOCHEMICAL ANOMALIES ABOVE OIL/GAS FIELDS IN THE SOUTH CHINA SEA |
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| Chen Hanzong et al..CHARACTERISTICS OF MERCURY GEOCHEMICAL ANOMALIES ABOVE OIL/GAS FIELDS IN THE SOUTH CHINA SEA[J].China Offshore Oil and Gas,1997(5). |
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| Authors: | Chen Hanzong |
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| Abstract: | On 8 cruises in the South China Sea, mercury anomalies were detected in seafloor sediments, seawater column, and sea-surface air above oil/gas fields and hydrocarbon-bearing sags. Mercury anomalies in these media, are often superimposed each other and associated with other geochemical anomalies. Usually mercury anomalies are large and block-shaped in plane, and form relatively continuous, medium to high anomaly platform in profiles. The trend of decrease in mercury content is seen from sediments upwards to bottom seawater, surface seawater, and sea-surface air. Examples are presented, which demonstrate mercury is one of the good indicators for the offshore oil/gas exploration. |
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| Keywords: | mercury anomaly geochemical exploration South China Sea |
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