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mi yang ao xian xia di san xi he tao yuan zu hu xiang yin zao ceng wen shi yan de fa xian ji qi huan jing yi yi
Author(s): 
Pages: 49-58
Year: Issue:  4
Journal: Acta Sedimentologica Sinica

Keyword:  湖相沉积湖退层序隐藻层纹石岩沉积环境泌阳凹陷;
Abstract: 泌阳凹陷下第三系核桃园组,在沉积上表现为一个大的湖退层序。在深盆浅水和干化深盆时期,陆源碎屑周期性地输入与泥坪上生长的造碳酸盐岩非骨骼藻群落结合,形成了不同频率的隐藻层纹石岩旋回。由于隐藻层纹石岩的特殊组构、沉积层序和对沉积环境的较大依存性,使之成为古环境分析的良好指标,也为油气勘探提供有价值的依据。
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