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。
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.
出处
《海洋石油》
CAS
2010年第1期21-25,共5页
Offshore Oil
基金
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)
