马丁群
时代属古元古代。分布在加拿大马尼托巴省的阿萨巴斯卡湖地区。下部由砾岩、长石砂岩组成；中部主要为基性火山岩、火山碎屑岩，火山碎屑岩的RbSr年龄为16.3亿年；上部为长石砂岩和粉砂岩。与下伏在古元古代沃格湖群和上覆中元古代阿萨巴斯卡群均呈不整合接触。马丁群被19亿～19.7亿年的花岗岩切穿，又被KAr年龄为15.6亿年的辉绿岩脉所侵入。
Classification(s)
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Geographic semantic resource library Earth System(in Chinese) Geostratigraphic stratigraphy
{{htmlJSON.DetailedDescription}}
| English |
|---|
| Name | Martin Gr |
| Chinese |
|---|
| Name | 马丁群 |
| Description | 时代属古元古代。分布在加拿大马尼托巴省的阿萨巴斯卡湖地区。下部由砾岩、长石砂岩组成；中部主要为基性火山岩、火山碎屑岩，火山碎屑岩的RbSr年龄为16.3亿年；上部为长石砂岩和粉砂岩。与下伏在古元古代沃格湖群和上覆中元古代阿萨巴斯卡群均呈不整合接触。马丁群被19亿～19.7亿年的花岗岩切穿，又被KAr年龄为15.6亿年的辉绿岩脉所侵入。 |
{{htmlJSON.HowtoCite}}
NNU_Group (2011). 马丁群, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/f304b464-731c-4b64-99c7-f7171c6a96da
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