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地质学报  2002 

华北燕山中―新元古代震积岩系列及其地震节律

Keywords: 元古代地震节律燕山震积岩地震事件河北风暴岩地震活跃期

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Abstract:

在燕山北缘河北平泉地区中,上元古界中,鉴别出一系列震积岩。主要类型有脆性型,塑性型,液化型及复合型四种。提出了啸积岩与风暴岩的鉴别标志,指出鲍马序列模式的真正拥有者是啸积岩与风暴岩,而非典型的半深海浊积岩。根据其在纵向上出现的类别和频率,划分出10个地震活跃期,其地震节律为60-80Ma,这一地震节律反映了燕山裂陷槽裂陷的历程,裂陷高峰期在高于庄至雾迷山期。

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