抱板群
时代相当于长城纪。分布于海南昌江一带，为变质岩系。自下而上分为：①戈枕村组，为一套片麻岩，以斜长片麻岩为主夹少量黑云斜长变粒岩及紫苏麻粒岩，受强烈混合岩化，厚2381米，未见底；②峨文岭组，其上段上部以斜长云母石英片岩、二云石英片岩为主，夹长石石英岩及石墨片岩(石墨矿层)，下部主要为石英岩，普遍含石墨，厚340～550米，下段为石英二云片岩及二云石英片岩，底部为长石石英岩，厚420～880米。顶部与上覆陀烈群不整合接触。该群UPb一致线年龄(18.3±0.8)亿年，片麻岩RbSr等时线年龄14.6亿年，PbPb全岩年龄17.5亿年。
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Alias
Contributor
contributed at 2011-10-11
Classification(s)
●
Earth System(in Chinese) Geostratigraphic stratigraphy
Detailed Description
| English |
|---|
| Name | Baoban Gr |
| Chinese |
|---|
| Name | 抱板群 |
| Description | 时代相当于长城纪。分布于海南昌江一带，为变质岩系。自下而上分为：①戈枕村组，为一套片麻岩，以斜长片麻岩为主夹少量黑云斜长变粒岩及紫苏麻粒岩，受强烈混合岩化，厚2381米，未见底；②峨文岭组，其上段上部以斜长云母石英片岩、二云石英片岩为主，夹长石石英岩及石墨片岩(石墨矿层)，下部主要为石英岩，普遍含石墨，厚340～550米，下段为石英二云片岩及二云石英片岩，底部为长石石英岩，厚420～880米。顶部与上覆陀烈群不整合接触。该群UPb一致线年龄(18.3±0.8)亿年，片麻岩RbSr等时线年龄14.6亿年，PbPb全岩年龄17.5亿年。 |
How to Cite
NNU_Group (2011). 抱板群, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/712d0adb-825a-4733-a443-2bd5ebc59f53
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