蓟县系
曾称蓟县群。位于中元古界上部，分布于燕山地区，为一套以浅海相碳酸盐岩沉积为主，夹泥质沉积，在有些地区夹有铁、锰、磷等矿层，代表一个大的沉积韵律组合。含有以Baicalia baicalica为代表的叠层石组合和以膜壳较厚、个体较大(直径10～50微米)、表面粗糙为特点的微古植物组合。自下而上分为杨庄组，雾迷山组、洪水庄组和铁岭组。延续时限为14亿～10亿年。
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contributed at 2011-10-11
Classification(s)
●
Earth System(in Chinese) Geostratigraphic stratigraphy
Detailed Description
| English |
|---|
| Name | Jixianian System |
| Chinese |
|---|
| Name | 蓟县系 |
| Description | 曾称蓟县群。位于中元古界上部，分布于燕山地区，为一套以浅海相碳酸盐岩沉积为主，夹泥质沉积，在有些地区夹有铁、锰、磷等矿层，代表一个大的沉积韵律组合。含有以Baicalia baicalica为代表的叠层石组合和以膜壳较厚、个体较大(直径10～50微米)、表面粗糙为特点的微古植物组合。自下而上分为杨庄组，雾迷山组、洪水庄组和铁岭组。延续时限为14亿～10亿年。 |
How to Cite
NNU_Group (2011). 蓟县系, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/f3e807db-2ee2-47df-a5b8-2042dfb6216a
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