门头沟群
曾称门头沟煤系。时代属早侏罗世晚期至中侏罗世。分布于河北境内。命名地点在北京西山门头沟。本组为陆相含煤沉积，以灰黑、灰色页岩、砂岩为主夹煤层，底部有厚150～500米的玄武岩。页岩中含植物化石Coniopteris hymenophylloides，Phoenicopsis cf. speciosa，Todites williamsoni等。本组与下伏老地层一般为不整合接触。山东的坊子组、山西的大同组可与本群相比。本群现仅包括窑坡组和龙门组。
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Contributor
contributed at 2011-10-11
Classification(s)
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Earth System(in Chinese) Geostratigraphic stratigraphy
Detailed Description
| English |
|---|
| Name | Mentougou Gr |
| Chinese |
|---|
| Name | 门头沟群 |
| Description | 曾称门头沟煤系。时代属早侏罗世晚期至中侏罗世。分布于河北境内。命名地点在北京西山门头沟。本组为陆相含煤沉积，以灰黑、灰色页岩、砂岩为主夹煤层，底部有厚150～500米的玄武岩。页岩中含植物化石Coniopteris hymenophylloides，Phoenicopsis cf. speciosa，Todites williamsoni等。本组与下伏老地层一般为不整合接触。山东的坊子组、山西的大同组可与本群相比。本群现仅包括窑坡组和龙门组。 |
How to Cite
NNU_Group (2011). 门头沟群, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/20682472-afc1-4203-be71-5903a21c3c2a
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