CARBONATE SEDIMENTARY ENVIRONMENT OF THE JIXIAN SYSTEM AT THE SOUTHWEST MARGIN OF THE ORDOS BASIN
Author(s): Li Xiao-cong, Cao Hong-yuan, Chen Bao-yun, Song Jin-bo
Pages: 52-56
Year: 2015 Issue: 1
Journal: Geology of Shaanxi
Keyword: 蓟县系; 藻白云岩; 烃源层; 沉积环境; 地球化学特征;
Abstract: 鄂尔多斯盆地西南缘发现的纹层状藻白云岩富含沥青,为可能的古老烃源层.白云岩主量元素钙/镁比值高于纯白云岩比值(1.41 ～1.45 ＞1.39),微量元素Al2O3、TiO2等含量低,V/Cr、Ni/Co和V/ (V +Ni)分别小于2、5和0.6,稀土元素呈负Ce异常、正Eu异常,白云岩局部富含海洋蓝绿藻类等低等生物,可能为烃源岩的原始有机母质.
Pages: 52-56
Year: 2015 Issue: 1
Journal: Geology of Shaanxi
Keyword: 蓟县系; 藻白云岩; 烃源层; 沉积环境; 地球化学特征;
Abstract: 鄂尔多斯盆地西南缘发现的纹层状藻白云岩富含沥青,为可能的古老烃源层.白云岩主量元素钙/镁比值高于纯白云岩比值(1.41 ～1.45 ＞1.39),微量元素Al2O3、TiO2等含量低,V/Cr、Ni/Co和V/ (V +Ni)分别小于2、5和0.6,稀土元素呈负Ce异常、正Eu异常,白云岩局部富含海洋蓝绿藻类等低等生物,可能为烃源岩的原始有机母质.
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