| 琼东南盆地三亚组碳酸盐沉积Ce异常及对环境的指示 |
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| 引用本文： | 田艳丽. 琼东南盆地三亚组碳酸盐沉积Ce异常及对环境的指示[J]. 海洋地质译丛, 2010, 0(1): 21-25 |
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| 作者姓名： | 田艳丽 |
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| 作者单位： | 中国地质大学,湖北武汉430074 |
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| 基金项目： | 基金项目：中海油湛江分公司资助项目“南海西部深水区碳酸盐岩-生物礁沉积环境与分布’’（编号：086140） |
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| 摘 要： | 通过分析研究琼东南盆地北部边缘三亚组碳酸盐岩稀土元素地球化学特征，结果表明：稀土元素含量低于1μg／g，呈明显的Ce负异常特征；沉积物沉积于氧化环境；垂向上Ce异常的波动曲线与海平面升降的变化曲线相一致。
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| 关 键 词： | 稀土元素 Ce异常 氧化还原条件 碳酸盐岩 琼东南盆地 |
Ce anomaly as geochemical tracers for redox condition in carbonates of Sanya Formation, Qiongdongnan Basin |
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| Tian Yanli. Ce anomaly as geochemical tracers for redox condition in carbonates of Sanya Formation, Qiongdongnan Basin[J]. Offshore Oil, 2010, 0(1): 21-25 |
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| Authors: | Tian Yanli |
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| Affiliation: | Tian Yanli ( China University of Geosciences, Wuhan 430074) |
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| Abstract: | Rare earth elements were measured in sedimentary cores collected in carbonates of Sanya Formation. The content of rare earth elements in marine sediment is under 1μg/g, while it shows sharp Ce anomaly, indicating that carbonate sediments in Qiongdongnan basin were deposited in oxic environments. Vertically, the curve of Ce change is consistent with eustatic sea level change, indicating that Ce change is correlated with eustatic sea level change. |
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| Keywords: | rare earth elements Ce anomaly redox condition carbonate Qiongdongnan Basin |
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