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阿尔及利亚新第三纪Tafna盆地地震构造研究(英文) 被引量：1

Seismotectonics of the Tafna Neogene Basin,North West of Algeria
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摘要 通过对阿尔及利亚东北部Tafna盆地区域地质资料、地震活动规律、震源分布和震源机制分析,详细研究了该盆地的地震构造模式。由地震震源机制分析可知Tafna盆主要受到NE-SE的挤压,显示该盆地应力场主要受到欧亚板块和非洲板块的碰撞影响。这一研究结果与目前Tafna盆地区域构造格架具有很好的一致性。 The study of seismotectonics of the Tafna Neogene basin is represented as deduced from main geological features, seismicity and focal mechanism data. The hypocentral distribution of shallow earthquake is analyzed. The direction of the stress distribution is inferred from the focal mechanism of selected event. A seismotectonic framework summarizing these results together with the main geological features shows that the regional stress regime corresponds to horizontal compression in a NW--SE direction, associated with the collision between Eurasia and Africa plates. --Nf^o
作者 A. Bourezg Belkhir 金振民 A. Boucif M. Benchouk
机构地区 中国地质大学地球科学学院 Depart ment of Earth Sciences
出处 《工程地球物理学报》 2009年第4期447-453,共7页 Chinese Journal of Engineering Geophysics
关键词 Tafna盆地 地震构造 地震活动 震源机制 挤压应力 板块碰撞 Tafna Neogene basin seismotectonic seismicity focal mechanism stress compression collision
分类号 P631.4 [天文地球—地质矿产勘探]
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工程地球物理学报
2009年 第4期

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