圆藻山群
时代属新元古代。出露于甘肃北山地区，为一套浅变质岩系。自下而上分为蓟县纪平头山组，青白口纪野马街组、大豁落山组和通畅口组，厚达12666米。主要为一套富含叠层石的碳酸盐岩，以白云岩、白云大理岩为主，夹泥灰岩、碎屑岩。叠层石在下部以Conophyton占优势(平头山组)，上部以Gymnosolen,Inzeria等居多。与下伏长城纪古硐井群呈假整合关系，与上覆震旦系洗肠井组呈不整合接触。
Classification(s)
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Geographic semantic resource library Earth System(in Chinese) Geostratigraphic stratigraphy
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| English |
|---|
| Name | Yuanzaoshan Gr |
| Chinese |
|---|
| Name | 圆藻山群 |
| Description | 时代属新元古代。出露于甘肃北山地区，为一套浅变质岩系。自下而上分为蓟县纪平头山组，青白口纪野马街组、大豁落山组和通畅口组，厚达12666米。主要为一套富含叠层石的碳酸盐岩，以白云岩、白云大理岩为主，夹泥灰岩、碎屑岩。叠层石在下部以Conophyton占优势(平头山组)，上部以Gymnosolen,Inzeria等居多。与下伏长城纪古硐井群呈假整合关系，与上覆震旦系洗肠井组呈不整合接触。 |
{{htmlJSON.HowtoCite}}
NNU_Group (2011). 圆藻山群, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/258def04-e950-490f-995d-5f0134238695
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