沉积与特提斯地质2011，Vol.31Issue(2)：49-54,6.
渝东南下寒武统黑色岩系稀土元素地球化学特征与沉积环境
REE geochemical signatures and sedimentary environments of the Lower Cambrian black rock series in southeastern Chongqing and its adjacent areas
摘要
Abstract
The Lower Cambrian black rock series in southeastern Chongqing and its adjacent areas are characterized by less-enriched ∑REE, SLREE/XHREE ratios ranging between 1.99 and 9.01 with an average of 6.86, relatively Enriched LREE, 8Eu values ranging between 0. 69 and 7. 33 with an average of 2. 79, and 8Ce values ranging between 0.70 and 1.01 with an average of 0.85. The results of research in the present paper show that the Lower Cambrian black rock series in the study area resulted from the mixing of the normal seawater and hot seawater deposition in the transitional conditions from the anoxic reducing environments to the weakly oxidized environments on the outer continental shelves.关键词
渝东南/黑色岩系/稀土元素/沉积环境Key words
southeastern Chongqing/ black rock series/ REE/ sedimentary environment分类
天文与地球科学引用本文复制引用
赵瞻,谢渊,刘建清,丘东洲,杨平..渝东南下寒武统黑色岩系稀土元素地球化学特征与沉积环境[J].沉积与特提斯地质,2011,31(2):49-54,6.基金项目
中国地质调查局《雪峰山西侧地区海相油气地质调查》项目资[ 2007] 035-05资助 （）
