Paleoproterozoic stratigraphic sequence in the Wutai Mountain area
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摘要: 根据大量的区调资料,利用断陷盆地的分析方法,通过地层剖面的横向对比,认为滹沱群的豆村亚群、东冶亚群以及系舟山的下元古界七东山组为侧向相变关系,郭家寨亚群形成于其后。在详细研究岩性、岩相的变化规律以及盆缘断裂特征的基础上,初步建立了早元古代的岩石地层格架,分析了早元古代裂陷海槽的发育史。Abstract: By means of a lot of regional geological survey data and methods of fault basin analysis, as well as the correlation of the stratigraphic sections in the Wutai Mountain area, the authors consider that the Doucun Subgroup and Dongye Subgroup of the Hutuo Group and the Qidongshan Formation of Xizhou Mountain show relations of lateral facies changes, and the Guojiazhai Subgroup formed after them. In this paper, through studying the distribution characteristics of the basin boundary faults, the authors tentatively put forward a Paleoproterozoic lithostratigraphic framework of the area, and analyze the developmental history of the Paleoproterozoic aulacogen.
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Key words:
- Wutai Mountain /
- Paleoproterozoic /
- sequence /
- lithostratigraphic framework
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[1] 山西省地矿局区调队.山西省区域地质志[M] .北京:地质出版社,1986 .
[2] 李思田.断陷盆地分析与煤聚积规律[ M] .北京:地质出版社,1988
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