韩杰,江杰,潘文庆,孙东,张敏,李丹丹
HAN Jie,JIANG Jie,PAN Wen-qing,SUN Dong,ZHANG Min,LI Dan-dan
摘要:
长期以来,塔中西部上奥陶统艾家山阶桑塔木组与下伏良里塔格组分界线主要是泥岩与灰岩的分界线。在古生物地层格架下,结合岩性、电性、古地貌和地震反射特征,指出在局部地区桑塔木组底部存在大套灰岩分布区,分为条带状分布和斑团状分布,代表良里塔格组沉积期的古地貌高地,也即代表良里塔格组高能相带的分布区,具有较强的沉积环境指示意义。基于这一新方法识别出塔中西部Z15井区良里塔格组高能相带的分布,分为台内群滩和台缘丘滩复合体。
中图分类号:
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