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地质学报  2003 

华北晚前寒武纪镁铁质岩墙群的流动构造及侵位机制

, PP. 210-216

Keywords: 镁铁质岩墙群,水平侵位,华北克拉通,燕辽―中条拗拉槽系

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Abstract:

华北克拉通中部广泛发育晚前寒武纪镁铁质岩墙群。这些岩墙群未变形和未变质,保存了清晰完好的流动构造,完整地反映了前寒武纪岩浆活动的特征和流动构造,这在世界上是罕见的。通过对晚前寒武纪镁铁质岩墙群的形态和流动构造研究,如:流动线理、矿物组构和磁组构等,提出岩墙群的侵位方向和侵位方式。结合本区岩墙群与燕辽―中条拗拉槽系的关系以及岩墙群的力学性质,探讨本区岩墙群的侵位机制。

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